feat: smaller cells (10x10px) for higher detail

Cells reduced from 16x16 to 10x10 pixels. Same window size now
shows more of the world — finer detail, more cells visible.
Adaptive viewport recalculates grid_w/grid_h from new cell size.

109 tests, 0 failures

graphify-out/.graphify_labels.json

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+{"0": "Vulkan Core Setup", "1": "Terminal Renderer & Game Loop", "2": "Graphics Vulkan Renderer", "3": "AI Pipe Protocol", "4": "AI Game Session", "5": "CLI Entry & GPU Mode", "6": "AI State Export", "7": "Terminal Input Handler", "8": "Entity System", "9": "Cellular Automaton", "10": "Replay System", "11": "Edge Case Tests", "12": "AI Actions & Grid", "13": "Material Physics Tests", "14": "Player Controller", "15": "Cell & Material Types", "16": "Material Interaction Tests", "17": "Player Control Tests", "18": "AI Agent Roadmap", "19": "Verlet Physics Solver", "20": "Render & Phase Roadmap", "21": "Collision Robustness Tests", "22": "Render Mode & UI Roadmap", "23": "Window Input (winit)", "24": "Determinism Tests", "25": "Ragdoll Death Tests", "26": "Grid Collision Resolver", "27": "Material Registry", "28": "Entity Types & Game Loop", "29": "Adaptive Viewport", "30": "Headless Dump & Combat Plan", "31": "Entity Damage Tests", "32": "Entity Movement Tests", "33": "Lava Physics Tests", "34": "Sand Physics Tests", "35": "Acid Physics Tests", "36": "Water Physics Tests", "37": "Ragdoll Physics Plan", "38": "Integration Tests", "39": "Per-Cell Color Plan", "40": "Game Run & Input", "41": "Slope Stepping", "42": "Renderer Trait", "43": "AI Module Root", "44": "Physics Module Root", "45": "Library Root", "46": "World Module Root"}

graphify-out/.graphify_python

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+/home/emil/.local/share/uv/tools/graphifyy/bin/python

graphify-out/.graphify_root

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+/home/emil/Desktop/Verbatim

graphify-out/GRAPH_REPORT.md

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+# Graph Report - .  (2026-06-21)
+
+## Corpus Check
+- Corpus is ~33,231 words - fits in a single context window. You may not need a graph.
+
+## Summary
+- 690 nodes · 1218 edges · 47 communities (44 shown, 3 thin omitted)
+- Extraction: 97% EXTRACTED · 3% INFERRED · 0% AMBIGUOUS · INFERRED: 32 edges (avg confidence: 0.86)
+- Token cost: 0 input · 0 output
+
+## Community Hubs (Navigation)
+- [[_COMMUNITY_Vulkan Core Setup|Vulkan Core Setup]]
+- [[_COMMUNITY_Terminal Renderer & Game Loop|Terminal Renderer & Game Loop]]
+- [[_COMMUNITY_Graphics Vulkan Renderer|Graphics Vulkan Renderer]]
+- [[_COMMUNITY_AI Pipe Protocol|AI Pipe Protocol]]
+- [[_COMMUNITY_AI Game Session|AI Game Session]]
+- [[_COMMUNITY_CLI Entry & GPU Mode|CLI Entry & GPU Mode]]
+- [[_COMMUNITY_AI State Export|AI State Export]]
+- [[_COMMUNITY_Terminal Input Handler|Terminal Input Handler]]
+- [[_COMMUNITY_Entity System|Entity System]]
+- [[_COMMUNITY_Cellular Automaton|Cellular Automaton]]
+- [[_COMMUNITY_Replay System|Replay System]]
+- [[_COMMUNITY_Edge Case Tests|Edge Case Tests]]
+- [[_COMMUNITY_AI Actions & Grid|AI Actions & Grid]]
+- [[_COMMUNITY_Material Physics Tests|Material Physics Tests]]
+- [[_COMMUNITY_Player Controller|Player Controller]]
+- [[_COMMUNITY_Cell & Material Types|Cell & Material Types]]
+- [[_COMMUNITY_Material Interaction Tests|Material Interaction Tests]]
+- [[_COMMUNITY_Player Control Tests|Player Control Tests]]
+- [[_COMMUNITY_AI Agent Roadmap|AI Agent Roadmap]]
+- [[_COMMUNITY_Verlet Physics Solver|Verlet Physics Solver]]
+- [[_COMMUNITY_Render & Phase Roadmap|Render & Phase Roadmap]]
+- [[_COMMUNITY_Collision Robustness Tests|Collision Robustness Tests]]
+- [[_COMMUNITY_Render Mode & UI Roadmap|Render Mode & UI Roadmap]]
+- [[_COMMUNITY_Window Input (winit)|Window Input (winit)]]
+- [[_COMMUNITY_Determinism Tests|Determinism Tests]]
+- [[_COMMUNITY_Ragdoll Death Tests|Ragdoll Death Tests]]
+- [[_COMMUNITY_Grid Collision Resolver|Grid Collision Resolver]]
+- [[_COMMUNITY_Material Registry|Material Registry]]
+- [[_COMMUNITY_Entity Types & Game Loop|Entity Types & Game Loop]]
+- [[_COMMUNITY_Adaptive Viewport|Adaptive Viewport]]
+- [[_COMMUNITY_Headless Dump & Combat Plan|Headless Dump & Combat Plan]]
+- [[_COMMUNITY_Entity Damage Tests|Entity Damage Tests]]
+- [[_COMMUNITY_Entity Movement Tests|Entity Movement Tests]]
+- [[_COMMUNITY_Lava Physics Tests|Lava Physics Tests]]
+- [[_COMMUNITY_Sand Physics Tests|Sand Physics Tests]]
+- [[_COMMUNITY_Acid Physics Tests|Acid Physics Tests]]
+- [[_COMMUNITY_Water Physics Tests|Water Physics Tests]]
+- [[_COMMUNITY_Ragdoll Physics Plan|Ragdoll Physics Plan]]
+- [[_COMMUNITY_Per-Cell Color Plan|Per-Cell Color Plan]]
+- [[_COMMUNITY_Game Run & Input|Game Run & Input]]
+- [[_COMMUNITY_Slope Stepping|Slope Stepping]]
+- [[_COMMUNITY_Renderer Trait|Renderer Trait]]
+
+## God Nodes (most connected - your core abstractions)
+1. `VulkanRenderer` - 37 edges
+2. `GraphicsRenderer` - 31 edges
+3. `GameSession` - 26 edges
+4. `Game` - 24 edges
+5. `Entity` - 20 edges
+6. `CellularAutomaton` - 19 edges
+7. `InputHandler` - 18 edges
+8. `Result` - 17 edges
+9. `String` - 17 edges
+10. `setup()` - 17 edges
+
+## Surprising Connections (you probably didn't know these)
+- `pipe render mode` --semantically_similar_to--> `AI pipe protocol (JSON stdin/stdout)`  [INFERRED] [semantically similar]
+  AGENTS.md → PLAN.md
+- `Game::fixed_update()` --semantically_similar_to--> `Fixed 60Hz timestep`  [INFERRED] [semantically similar]
+  AGENTS.md → PLAN.md
+- `Player` --semantically_similar_to--> `Player entity (headless dump)`  [INFERRED] [semantically similar]
+  AGENTS.md → headless_dump.txt
+- `rigid entity type` --semantically_similar_to--> `Rigid entities (AABB + slope stepping)`  [INFERRED] [semantically similar]
+  AGENTS.md → PLAN.md
+- `ragdoll entity type` --semantically_similar_to--> `Ragdoll corpses (Verlet)`  [INFERRED] [semantically similar]
+  AGENTS.md → PLAN.md
+
+## Import Cycles
+- 1-file cycle: `src/ai/action.rs -> src/ai/action.rs`
+- 1-file cycle: `src/world/grid.rs -> src/world/grid.rs`
+- 1-file cycle: `src/ai/protocol.rs -> src/ai/protocol.rs`
+- 1-file cycle: `src/ai/replay.rs -> src/ai/replay.rs`
+- 1-file cycle: `src/ai/scenario.rs -> src/ai/scenario.rs`
+- 1-file cycle: `src/ai/session.rs -> src/ai/session.rs`
+- 1-file cycle: `src/ai/state.rs -> src/ai/state.rs`
+- 1-file cycle: `src/game.rs -> src/game.rs`
+- 1-file cycle: `src/entity/player.rs -> src/entity/player.rs`
+- 1-file cycle: `src/render/terminal.rs -> src/render/terminal.rs`
+- 1-file cycle: `src/input.rs -> src/input.rs`
+- 1-file cycle: `src/main.rs -> src/main.rs`
+- 1-file cycle: `src/physics/collision.rs -> src/physics/collision.rs`
+- 1-file cycle: `src/physics/verlet.rs -> src/physics/verlet.rs`
+- 1-file cycle: `src/render/graphics.rs -> src/render/graphics.rs`
+- 1-file cycle: `src/render/vulkan.rs -> src/render/vulkan.rs`
+- 1-file cycle: `src/render/window_input.rs -> src/render/window_input.rs`
+- 1-file cycle: `src/world/cellular.rs -> src/world/cellular.rs`
+- 1-file cycle: `src/world/material.rs -> src/world/material.rs`
+- 1-file cycle: `tests/collision_robust.rs -> tests/collision_robust.rs`
+
+## Hyperedges (group relationships)
+- **Game loop fixed_update pipeline: CA step → rigid update → ragdoll update → damage** —  [INFERRED]
+- **Three render modes read the same Grid + EntityManager (single source of truth)** —  [INFERRED]
+- **GpuRenderer trait unifies VulkanRenderer + GraphicsRenderer behind run_gpu_mode<R>() with identical event loops** —  [INFERRED]
+
+## Communities (47 total, 3 thin omitted)
+
+### Community 0 - "Vulkan Core Setup"
+Cohesion: 0.10
+Nodes (61): BufferUsageFlags, c_char, DescriptorPool, DescriptorSet, DescriptorSetLayout, Format, Image, MemoryPropertyFlags (+53 more)
+
+### Community 1 - "Terminal Renderer & Game Loop"
+Cohesion: 0.07
+Nodes (19): CellularAutomaton, Duration, InputHandler, Player, R, TerminalRenderer, Renderer, Game (+11 more)
+
+### Community 2 - "Graphics Vulkan Renderer"
+Cohesion: 0.07
+Nodes (31): ColorInstance, GraphicsRenderer, PushConstants, Arc, Buffer, CommandBuffer, CommandPool, Device (+23 more)
+
+### Community 3 - "AI Pipe Protocol"
+Cohesion: 0.12
+Nodes (31): Command, handle_command(), Response, run_pipe_protocol(), Assertion, AssertionResult, check_assertion(), format_results() (+23 more)
+
+### Community 4 - "AI Game Session"
+Cohesion: 0.09
+Nodes (13): GameSession, Default, ReplayRecorder, AiAction, CellInfo, EntityInfo, Game, GameState (+5 more)
+
+### Community 5 - "CLI Entry & GPU Mode"
+Cohesion: 0.15
+Nodes (20): Cli, dump_view(), GpuRenderer, main(), player_info(), Arc, EntityManager, Game (+12 more)
+
+### Community 6 - "AI State Export"
+Cohesion: 0.13
+Nodes (23): build_game_state(), CellInfo, entity_info(), entity_kind_name(), EntityInfo, GameState, material_from_name(), parse_entity_kind() (+15 more)
+
+### Community 7 - "Terminal Input Handler"
+Cohesion: 0.13
+Nodes (15): Event, JoinHandle, Receiver, Action, HeldKey, HeldState, InputHandler, MaterialBrush (+7 more)
+
+### Community 8 - "Entity System"
+Cohesion: 0.15
+Nodes (9): Constraint, Entity, EntityKind, EntityManager, EntityId, Option, Self, SubBody (+1 more)
+
+### Community 9 - "Cellular Automaton"
+Cohesion: 0.29
+Nodes (4): Grid, MaterialId, Self, CellularAutomaton
+
+### Community 10 - "Replay System"
+Cohesion: 0.13
+Nodes (11): ReplayEvent, ReplayPlayer, ReplayRecorder, ReplayRecording, ReplayEvent, AiAction, GameSession, Result (+3 more)
+
+### Community 11 - "Edge Case Tests"
+Cohesion: 0.16
+Nodes (17): center_camera_on_player(), clear_region_removes_all_materials(), entity_at_right_boundary(), entity_at_world_boundary_stays_in_bounds(), fill_rect_creates_correct_material_count(), find_material_locates_existing(), find_material_returns_none_for_absent(), goblin_has_correct_max_health() (+9 more)
+
+### Community 12 - "AI Actions & Grid"
+Cohesion: 0.18
+Nodes (7): AiAction, Cell, Game, MaterialId, Self, Vec, Grid
+
+### Community 13 - "Material Physics Tests"
+Cohesion: 0.22
+Nodes (17): bone_is_static(), dirt_is_solid(), fire_dies_over_time(), fire_ignites_flesh(), fire_ignites_grass(), fire_ignites_wood(), grass_is_solid(), lava_initial_temp_is_high() (+9 more)
+
+### Community 14 - "Player Controller"
+Cohesion: 0.21
+Nodes (6): Player, Entity, EntityId, EntityManager, Option, Self
+
+### Community 15 - "Cell & Material Types"
+Cohesion: 0.17
+Nodes (4): Self, Cell, MaterialId, rand_u8()
+
+### Community 16 - "Material Interaction Tests"
+Cohesion: 0.26
+Nodes (14): acid_dissolves_dirt(), acid_dissolves_grass(), acid_does_not_dissolve_empty(), fire_does_not_ignite_stone(), fire_does_not_ignite_water(), fire_spreads_through_wood_line(), lava_and_water_produce_both_steam_and_stone(), lava_cools_to_stone_eventually() (+6 more)
+
+### Community 17 - "Player Control Tests"
+Cohesion: 0.26
+Nodes (14): continuous_movement_does_not_fall_through_floor(), jump_goes_up_then_falls_back(), jump_while_airborne_does_nothing(), move_left_changes_x_position(), move_left_then_right_cancels(), move_right_changes_x_position(), player_health_stays_full_without_damage(), player_not_on_ground_while_jumping() (+6 more)
+
+### Community 18 - "AI Agent Roadmap"
+Cohesion: 0.18
+Nodes (14): AiAction, GameSession, pipe render mode, AI pipe protocol (JSON stdin/stdout), Seeded RNG determinism, LLM agent (Ollama/Llama/Qwen), Phase 7: AI Agent Integration, Phase 8: Web Arena & Training Pipeline (+6 more)
+
+### Community 19 - "Verlet Physics Solver"
+Cohesion: 0.22
+Nodes (5): Constraint, SubBody, VerletSolver, MaterialId, Self
+
+### Community 20 - "Render & Phase Roadmap"
+Cohesion: 0.15
+Nodes (11): Chunk system (64x64), Cross-platform support (Win/Linux/macOS), Multi-layer world architecture, Phase 2: World & Exploration, Phase 3: RPG Layer, Phase 4: Render Modes, Phase 4b: Graphics layers (lighting/particles/textures), Phase 5: Content & Polish (+3 more)
+
+### Community 21 - "Collision Robustness Tests"
+Cohesion: 0.27
+Nodes (10): entity_collision_with_dirt_wall(), player_blocked_by_ceiling(), player_blocked_by_left_wall(), player_blocked_by_right_wall(), player_blocked_by_two_walls_both_sides(), player_does_not_stick_to_wall(), player_slides_along_wall(), player_squeezes_through_gap() (+2 more)
+
+### Community 22 - "Render Mode & UI Roadmap"
+Cohesion: 0.22
+Nodes (11): EntityManager, Grid (250x250) source of truth, ascii render mode, graphics render mode, terminal render mode, ASCII renderer (Vulkan glyph atlas), Graphics renderer (Vulkan colored cells), Phase 1.5: UI Layer (+3 more)
+
+### Community 23 - "Window Input (winit)"
+Cohesion: 0.20
+Nodes (7): ElementState, HashSet, PhysicalKey, WindowInput, KeyCode, Option, Self
+
+### Community 24 - "Determinism Tests"
+Cohesion: 0.22
+Nodes (3): determinism_with_spawn_and_damage(), GameSession, setup()
+
+### Community 25 - "Ragdoll Death Tests"
+Cohesion: 0.38
+Nodes (9): corpse_exists_in_world(), damage_reduces_health_progressively(), death_transitions_rigid_to_ragdoll(), player_death_becomes_corpse(), ragdoll_bodies_stay_near_each_other(), ragdoll_falls_after_death(), GameSession, setup() (+1 more)
+
+### Community 26 - "Grid Collision Resolver"
+Cohesion: 0.46
+Nodes (6): apply_liquid_drag(), CollisionResult, resolve_grid_collision(), Grid, Self, SubBody
+
+### Community 27 - "Material Registry"
+Cohesion: 0.43
+Nodes (4): MaterialId, Self, Material, MaterialRegistry
+
+### Community 28 - "Entity Types & Game Loop"
+Cohesion: 0.29
+Nodes (7): cellular entity type, CellularAutomaton, Game::fixed_update(), rigid entity type, Fixed 60Hz timestep, 14 CA Materials, Rigid entities (AABB + slope stepping)
+
+### Community 29 - "Adaptive Viewport"
+Cohesion: 0.33
+Nodes (7): check_resize(), GpuRenderer trait, GraphicsRenderer, run_gpu_mode<R>(), VulkanRenderer, WindowInput, Adaptive viewport
+
+### Community 30 - "Headless Dump & Combat Plan"
+Cohesion: 0.33
+Nodes (6): Player, vector movement convention, Goblin entity (headless dump), Grid ASCII rendering (headless dump), Player entity (headless dump), Phase 1: Combat & Interaction
+
+### Community 31 - "Entity Damage Tests"
+Cohesion: 0.52
+Nodes (6): entity_blocked_by_stone(), entity_dies_becomes_corpse(), entity_on_fire_takes_damage_over_time(), entity_takes_lava_damage(), GameSession, setup_empty()
+
+### Community 32 - "Entity Movement Tests"
+Cohesion: 0.48
+Nodes (5): player_blocked_by_stone_wall(), player_can_move_right(), player_survives_fall(), GameSession, setup_empty()
+
+### Community 33 - "Lava Physics Tests"
+Cohesion: 0.52
+Nodes (6): lava_flows_down(), lava_ignites_grass(), lava_ignites_wood(), lava_plus_water_makes_steam(), GameSession, setup_empty()
+
+### Community 34 - "Sand Physics Tests"
+Cohesion: 0.52
+Nodes (6): GameSession, sand_displaces_water(), sand_does_not_fall_through_stone(), sand_falls_down(), sand_piles_on_stone(), setup_empty()
+
+### Community 35 - "Acid Physics Tests"
+Cohesion: 0.60
+Nodes (5): acid_dissolves_wood(), acid_does_not_dissolve_stone(), acid_flows_down(), GameSession, setup_empty()
+
+### Community 36 - "Water Physics Tests"
+Cohesion: 0.60
+Nodes (5): GameSession, setup_empty(), water_does_not_pass_through_stone_wall(), water_flows_down(), water_spreads_sideways()
+
+### Community 37 - "Ragdoll Physics Plan"
+Cohesion: 0.50
+Nodes (5): Constraint, ragdoll entity type, SubBody, VerletSolver, Ragdoll corpses (Verlet)
+
+### Community 39 - "Per-Cell Color Plan"
+Cohesion: 0.67
+Nodes (4): Cell struct, inline cell colors convention, MaterialRegistry, Per-cell color (reality layer)
+
+## Knowledge Gaps
+- **106 isolated node(s):** `String`, `CellInfo`, `Vec`, `EntityInfo`, `ScenarioResult` (+101 more)
+  These have ≤1 connection - possible missing edges or undocumented components.
+- **3 thin communities (<3 nodes) omitted from report** — run `graphify query` to explore isolated nodes.
+
+## Suggested Questions
+_Questions this graph is uniquely positioned to answer:_
+
+- **Why does `Cell` connect `AI Actions & Grid` to `Cellular Automaton`?**
+  _High betweenness centrality (0.011) - this node is a cross-community bridge._
+- **Why does `GameSession` connect `AI Game Session` to `AI State Export`?**
+  _High betweenness centrality (0.011) - this node is a cross-community bridge._
+- **What connects `String`, `CellInfo`, `Vec` to the rest of the system?**
+  _108 weakly-connected nodes found - possible documentation gaps or missing edges._
+- **Should `Vulkan Core Setup` be split into smaller, more focused modules?**
+  _Cohesion score 0.09525899912203688 - nodes in this community are weakly interconnected._
+- **Should `Terminal Renderer & Game Loop` be split into smaller, more focused modules?**
+  _Cohesion score 0.06956521739130435 - nodes in this community are weakly interconnected._
+- **Should `Graphics Vulkan Renderer` be split into smaller, more focused modules?**
+  _Cohesion score 0.06543385490753911 - nodes in this community are weakly interconnected._
+- **Should `AI Pipe Protocol` be split into smaller, more focused modules?**
+  _Cohesion score 0.12063492063492064 - nodes in this community are weakly interconnected._

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+    "semantic_hash": "bb610684494750685093b6745cbd3c95"
+  },
+  "/home/emil/Desktop/Verbatim/src/ai/scenario.rs": {
+    "mtime": 1781982011.0213413,
+    "ast_hash": "1ed4faf1ab6157642642e77372821df2",
+    "semantic_hash": "1ed4faf1ab6157642642e77372821df2"
+  },
+  "/home/emil/Desktop/Verbatim/src/ai/session.rs": {
+    "mtime": 1781994682.1954203,
+    "ast_hash": "299982f384ea4ee845e16462aa5c55ce",
+    "semantic_hash": "299982f384ea4ee845e16462aa5c55ce"
+  },
+  "/home/emil/Desktop/Verbatim/src/ai/state.rs": {
+    "mtime": 1781994883.4095483,
+    "ast_hash": "5b25a5fffc6be4182745780e04e40614",
+    "semantic_hash": "5b25a5fffc6be4182745780e04e40614"
+  },
+  "/home/emil/Desktop/Verbatim/src/entity/entity.rs": {
+    "mtime": 1781994535.1578653,
+    "ast_hash": "dc597c2796cd69c6703d50be701ce9f0",
+    "semantic_hash": "dc597c2796cd69c6703d50be701ce9f0"
+  },
+  "/home/emil/Desktop/Verbatim/src/entity/mod.rs": {
+    "mtime": 1781994733.5389633,
+    "ast_hash": "d720a8686f72b3f739a71acb1db16f18",
+    "semantic_hash": "d720a8686f72b3f739a71acb1db16f18"
+  },
+  "/home/emil/Desktop/Verbatim/src/entity/player.rs": {
+    "mtime": 1781994571.4262488,
+    "ast_hash": "ddfd3ca0846c649df864ae44ff1dc64c",
+    "semantic_hash": "ddfd3ca0846c649df864ae44ff1dc64c"
+  },
+  "/home/emil/Desktop/Verbatim/src/game.rs": {
+    "mtime": 1781994816.6048417,
+    "ast_hash": "7148e19d75808d22d6581639a8d5c311",
+    "semantic_hash": "7148e19d75808d22d6581639a8d5c311"
+  },
+  "/home/emil/Desktop/Verbatim/src/input.rs": {
+    "mtime": 1781994775.8534107,
+    "ast_hash": "70ec1ff16bf13b3649f27bea9a3891c8",
+    "semantic_hash": "70ec1ff16bf13b3649f27bea9a3891c8"
+  },
+  "/home/emil/Desktop/Verbatim/src/lib.rs": {
+    "mtime": 1781970270.862039,
+    "ast_hash": "abe33261862db85f4f4007a98efe1720",
+    "semantic_hash": "abe33261862db85f4f4007a98efe1720"
+  },
+  "/home/emil/Desktop/Verbatim/src/main.rs": {
+    "mtime": 1781994426.1417122,
+    "ast_hash": "f8186418f5cfccdc11af1976c10d994f",
+    "semantic_hash": "f8186418f5cfccdc11af1976c10d994f"
+  },
+  "/home/emil/Desktop/Verbatim/src/physics/collision.rs": {
+    "mtime": 1781969161.8692644,
+    "ast_hash": "bb0015e3335e47d8b25f3fa0a25a9afa",
+    "semantic_hash": "bb0015e3335e47d8b25f3fa0a25a9afa"
+  },
+  "/home/emil/Desktop/Verbatim/src/physics/mod.rs": {
+    "mtime": 1781994728.4279091,
+    "ast_hash": "b6cfc7b3d47ddf5dfe4b55385b1aeb0e",
+    "semantic_hash": "b6cfc7b3d47ddf5dfe4b55385b1aeb0e"
+  },
+  "/home/emil/Desktop/Verbatim/src/physics/verlet.rs": {
+    "mtime": 1781994612.3436816,
+    "ast_hash": "cdb55409206655f6826201b3a25d859f",
+    "semantic_hash": "cdb55409206655f6826201b3a25d859f"
+  },
+  "/home/emil/Desktop/Verbatim/src/render/graphics.rs": {
+    "mtime": 1781994837.8480663,
+    "ast_hash": "c0f8cc8af597d07af099e307622b4f2b",
+    "semantic_hash": "c0f8cc8af597d07af099e307622b4f2b"
+  },
+  "/home/emil/Desktop/Verbatim/src/render/mod.rs": {
+    "mtime": 1781992655.9960363,
+    "ast_hash": "1390b4f260548f51898abeaefa44c0d7",
+    "semantic_hash": "1390b4f260548f51898abeaefa44c0d7"
+  },
+  "/home/emil/Desktop/Verbatim/src/render/terminal.rs": {
+    "mtime": 1781994877.423485,
+    "ast_hash": "e9eb6b706e04619794e5567b7ae71425",
+    "semantic_hash": "e9eb6b706e04619794e5567b7ae71425"
+  },
+  "/home/emil/Desktop/Verbatim/src/render/vulkan.rs": {
+    "mtime": 1781994804.0007086,
+    "ast_hash": "d94730a5b91d78bb5271b7d18123fb5f",
+    "semantic_hash": "d94730a5b91d78bb5271b7d18123fb5f"
+  },
+  "/home/emil/Desktop/Verbatim/src/render/window_input.rs": {
+    "mtime": 1781994633.7179077,
+    "ast_hash": "e8d2a0128959ce134a3e440e7fdef8cf",
+    "semantic_hash": "e8d2a0128959ce134a3e440e7fdef8cf"
+  },
+  "/home/emil/Desktop/Verbatim/src/world/cell.rs": {
+    "mtime": 1781994439.0328486,
+    "ast_hash": "65f721a9878492ed06b059d605630c88",
+    "semantic_hash": "65f721a9878492ed06b059d605630c88"
+  },
+  "/home/emil/Desktop/Verbatim/src/world/cellular.rs": {
+    "mtime": 1781994620.518768,
+    "ast_hash": "4299c4f6dffd685c4cff62d6da00962f",
+    "semantic_hash": "4299c4f6dffd685c4cff62d6da00962f"
+  },
+  "/home/emil/Desktop/Verbatim/src/world/grid.rs": {
+    "mtime": 1781994901.0097344,
+    "ast_hash": "7e28468cb7d0e44dd95c663c45b523b3",
+    "semantic_hash": "7e28468cb7d0e44dd95c663c45b523b3"
+  },
+  "/home/emil/Desktop/Verbatim/src/world/material.rs": {
+    "mtime": 1781994717.9467983,
+    "ast_hash": "7f70daf6658c7240dc576ca875dbdad0",
+    "semantic_hash": "7f70daf6658c7240dc576ca875dbdad0"
+  },
+  "/home/emil/Desktop/Verbatim/src/world/mod.rs": {
+    "mtime": 1781994722.7638493,
+    "ast_hash": "72a8eea3bfe44a1ff11a4c69709d414e",
+    "semantic_hash": "72a8eea3bfe44a1ff11a4c69709d414e"
+  },
+  "/home/emil/Desktop/Verbatim/tests/collision_robust.rs": {
+    "mtime": 1781984005.8506877,
+    "ast_hash": "aa42931beb7fc8c329f8ac1041a3c6dd",
+    "semantic_hash": "aa42931beb7fc8c329f8ac1041a3c6dd"
+  },
+  "/home/emil/Desktop/Verbatim/tests/determinism.rs": {
+    "mtime": 1781983582.462159,
+    "ast_hash": "22197294f9d488ea47da4c528d2748f5",
+    "semantic_hash": "22197294f9d488ea47da4c528d2748f5"
+  },
+  "/home/emil/Desktop/Verbatim/tests/edge_cases.rs": {
+    "mtime": 1781994760.8232517,
+    "ast_hash": "161c3c3c243335166e3bbb568b2c74a4",
+    "semantic_hash": "161c3c3c243335166e3bbb568b2c74a4"
+  },
+  "/home/emil/Desktop/Verbatim/tests/entity_damage.rs": {
+    "mtime": 1781980721.7435043,
+    "ast_hash": "2deee58dcc1b6b44e8d25a48c0fc5897",
+    "semantic_hash": "2deee58dcc1b6b44e8d25a48c0fc5897"
+  },
+  "/home/emil/Desktop/Verbatim/tests/entity_movement.rs": {
+    "mtime": 1781981346.368212,
+    "ast_hash": "049056e445056bf6c4b0e2a70c187fb1",
+    "semantic_hash": "049056e445056bf6c4b0e2a70c187fb1"
+  },
+  "/home/emil/Desktop/Verbatim/tests/integration.rs": {
+    "mtime": 1781983295.271087,
+    "ast_hash": "8db0aae4fbd95fb1effd18bb8560f953",
+    "semantic_hash": "8db0aae4fbd95fb1effd18bb8560f953"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_acid.rs": {
+    "mtime": 1781970221.685517,
+    "ast_hash": "e6034490a9607deeadce03505cadf731",
+    "semantic_hash": "e6034490a9607deeadce03505cadf731"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_interactions.rs": {
+    "mtime": 1781983882.030363,
+    "ast_hash": "38b73ebc6c62cfefb20506db6dd1072d",
+    "semantic_hash": "38b73ebc6c62cfefb20506db6dd1072d"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_lava.rs": {
+    "mtime": 1781980754.4328554,
+    "ast_hash": "c31c44a9f63bf8b6f1df51737f1a2de9",
+    "semantic_hash": "c31c44a9f63bf8b6f1df51737f1a2de9"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_materials.rs": {
+    "mtime": 1781983693.2113435,
+    "ast_hash": "ef6d9d77564f4c02745639ec5807d7db",
+    "semantic_hash": "ef6d9d77564f4c02745639ec5807d7db"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_sand.rs": {
+    "mtime": 1781983289.756028,
+    "ast_hash": "4b799fe61ebaa00d14c570d9284a37ec",
+    "semantic_hash": "4b799fe61ebaa00d14c570d9284a37ec"
+  },
+  "/home/emil/Desktop/Verbatim/tests/physics_water.rs": {
+    "mtime": 1781970629.040842,
+    "ast_hash": "a7141937d2e90d6cc16a6afef026bb1e",
+    "semantic_hash": "a7141937d2e90d6cc16a6afef026bb1e"
+  },
+  "/home/emil/Desktop/Verbatim/tests/player_controls.rs": {
+    "mtime": 1781984330.918165,
+    "ast_hash": "da75dda146361ea0e23ebd11f554fdba",
+    "semantic_hash": "da75dda146361ea0e23ebd11f554fdba"
+  },
+  "/home/emil/Desktop/Verbatim/tests/ragdoll_death.rs": {
+    "mtime": 1781994739.1590228,
+    "ast_hash": "c4dfb537ecc663fbb2444de321e05385",
+    "semantic_hash": "c4dfb537ecc663fbb2444de321e05385"
+  },
+  "/home/emil/Desktop/Verbatim/AGENTS.md": {
+    "mtime": 1781995334.9053233,
+    "ast_hash": "c301fc82f1fa9473c0354454b9b5ad55",
+    "semantic_hash": "c301fc82f1fa9473c0354454b9b5ad55"
+  },
+  "/home/emil/Desktop/Verbatim/PLAN.md": {
+    "mtime": 1781995156.2924342,
+    "ast_hash": "cb55659d25cbbb523394cc0c383bff5a",
+    "semantic_hash": "cb55659d25cbbb523394cc0c383bff5a"
+  },
+  "/home/emil/Desktop/Verbatim/headless_dump.txt": {
+    "mtime": 1781989911.9880815,
+    "ast_hash": "1ab2647a155a1eed5d05b7292a29b63e",
+    "semantic_hash": "1ab2647a155a1eed5d05b7292a29b63e"
+  }
+}

src/main.rs

@@ -1,18 +1,21 @@
 use clap::Parser;
+use std::io::Write;
+use std::sync::Arc;
+use std::time::{Duration, Instant};
+use verbatim::ai;
 use verbatim::game::Game;
 use verbatim::render::terminal::TerminalRenderer;
 use verbatim::render::window_input::WindowInput;
 use verbatim::world::cell::MaterialId;
-use verbatim::ai;
-use std::io::Write;
-use std::sync::Arc;
 use winit::event::{Event, WindowEvent};
-use winit::event_loop::{EventLoop, ControlFlow};
+use winit::event_loop::{ControlFlow, EventLoop};
 use winit::window::Window;
-use std::time::{Duration, Instant};
 
 #[derive(Parser, Debug)]
-#[command(name = "verbatim", about = "ASCII physics RPG - Noita meets Caves of Qud")]
+#[command(
+    name = "verbatim",
+    about = "ASCII physics RPG - Noita meets Caves of Qud"
+)]
 struct Cli {
     #[arg(long, default_value = "ascii")]
     mode: String,
@@ -31,8 +34,16 @@ struct Cli {
 }
 
 trait GpuRenderer {
-    fn new(window: Arc<Window>) -> Result<Self, String> where Self: Sized;
+    fn new(window: Arc<Window>) -> Result<Self, String>
-    fn render(&mut self, grid: &verbatim::world::grid::Grid, entities: &verbatim::entity::EntityManager, cam_x: i32, cam_y: i32);
+    where
+        Self: Sized;
+    fn render(
+        &mut self,
+        grid: &verbatim::world::grid::Grid,
+        entities: &verbatim::entity::EntityManager,
+        cam_x: i32,
+        cam_y: i32,
+    );
     fn grid_w(&self) -> usize;
     fn grid_h(&self) -> usize;
 }
@@ -41,22 +52,42 @@ impl GpuRenderer for verbatim::render::vulkan::VulkanRenderer {
     fn new(window: Arc<Window>) -> Result<Self, String> {
         verbatim::render::vulkan::VulkanRenderer::new(window)
     }
-    fn render(&mut self, grid: &verbatim::world::grid::Grid, entities: &verbatim::entity::EntityManager, cam_x: i32, cam_y: i32) {
+    fn render(
+        &mut self,
+        grid: &verbatim::world::grid::Grid,
+        entities: &verbatim::entity::EntityManager,
+        cam_x: i32,
+        cam_y: i32,
+    ) {
         verbatim::render::vulkan::VulkanRenderer::render(self, grid, entities, cam_x, cam_y)
     }
-    fn grid_w(&self) -> usize { verbatim::render::vulkan::VulkanRenderer::grid_w(self) }
+    fn grid_w(&self) -> usize {
-    fn grid_h(&self) -> usize { verbatim::render::vulkan::VulkanRenderer::grid_h(self) }
+        verbatim::render::vulkan::VulkanRenderer::grid_w(self)
+    }
+    fn grid_h(&self) -> usize {
+        verbatim::render::vulkan::VulkanRenderer::grid_h(self)
+    }
 }
 
 impl GpuRenderer for verbatim::render::graphics::GraphicsRenderer {
     fn new(window: Arc<Window>) -> Result<Self, String> {
         verbatim::render::graphics::GraphicsRenderer::new(window)
     }
-    fn render(&mut self, grid: &verbatim::world::grid::Grid, entities: &verbatim::entity::EntityManager, cam_x: i32, cam_y: i32) {
+    fn render(
+        &mut self,
+        grid: &verbatim::world::grid::Grid,
+        entities: &verbatim::entity::EntityManager,
+        cam_x: i32,
+        cam_y: i32,
+    ) {
         verbatim::render::graphics::GraphicsRenderer::render(self, grid, entities, cam_x, cam_y)
     }
-    fn grid_w(&self) -> usize { verbatim::render::graphics::GraphicsRenderer::grid_w(self) }
+    fn grid_w(&self) -> usize {
-    fn grid_h(&self) -> usize { verbatim::render::graphics::GraphicsRenderer::grid_h(self) }
+        verbatim::render::graphics::GraphicsRenderer::grid_w(self)
+    }
+    fn grid_h(&self) -> usize {
+        verbatim::render::graphics::GraphicsRenderer::grid_h(self)
+    }
 }
 
 fn main() {
@@ -103,7 +134,10 @@ fn main() {
             }
         }
         _ => {
-            eprintln!("Unknown mode: {}. Use terminal, ascii, graphics, pipe, test, replay, or headless.", cli.mode);
+            eprintln!(
+                "Unknown mode: {}. Use terminal, ascii, graphics, pipe, test, replay, or headless.",
+                cli.mode
+            );
             std::process::exit(1);
         }
     }
@@ -111,11 +145,13 @@ fn main() {
 
 fn run_gpu_mode<R: GpuRenderer>(title: &str) {
     let event_loop = EventLoop::new().expect("Failed to create event loop");
-    let window = event_loop.create_window(
+    let window = event_loop
+        .create_window(
             Window::default_attributes()
                 .with_title(title)
-            .with_inner_size(winit::dpi::LogicalSize::new(160 * 16, 50 * 16))
+                .with_inner_size(winit::dpi::LogicalSize::new(160 * 10, 50 * 10)),
-    ).expect("Failed to create window");
+        )
+        .expect("Failed to create window");
     let window = Arc::new(window);
 
     let mut renderer = match R::new(Arc::clone(&window)) {
@@ -140,22 +176,23 @@ fn run_gpu_mode<R: GpuRenderer>(title: &str) {
     let mut accumulator = Duration::ZERO;
     let mut running = true;
 
-    event_loop.run(|event, ctrl| {
+    event_loop
+        .run(|event, ctrl| {
             ctrl.set_control_flow(ControlFlow::Poll);
 
             match event {
-            Event::WindowEvent { event, .. } => {
+                Event::WindowEvent { event, .. } => match event {
-                match event {
                     WindowEvent::CloseRequested => {
                         running = false;
                         ctrl.exit();
                     }
-                    WindowEvent::KeyboardInput { event: key_event, .. } => {
+                    WindowEvent::KeyboardInput {
+                        event: key_event, ..
+                    } => {
                         input.on_key_event(key_event.physical_key, key_event.state);
                     }
                     _ => {}
-                }
+                },
-            }
                 Event::AboutToWait => {
                     if !running {
                         ctrl.exit();
@@ -198,10 +235,18 @@ fn run_gpu_mode<R: GpuRenderer>(title: &str) {
                         game.player.stop_horizontal(&mut game.entities);
                     }
 
-                if input.cam_left { game.cam_x -= 3; }
+                    if input.cam_left {
-                if input.cam_right { game.cam_x += 3; }
+                        game.cam_x -= 3;
-                if input.cam_up { game.cam_y -= 3; }
+                    }
-                if input.cam_down { game.cam_y += 3; }
+                    if input.cam_right {
+                        game.cam_x += 3;
+                    }
+                    if input.cam_up {
+                        game.cam_y -= 3;
+                    }
+                    if input.cam_down {
+                        game.cam_y += 3;
+                    }
 
                     if let Some(brush_id) = input.paint {
                         let mat = match brush_id {
@@ -225,7 +270,11 @@ fn run_gpu_mode<R: GpuRenderer>(title: &str) {
                             for dx in -r..=r {
                                 if dx * dx + dy * dy <= r * r + 1 {
                                     if mat == MaterialId::Empty {
-                                    game.grid.set(cx + dx, cy + dy, verbatim::world::cell::Cell::empty());
+                                        game.grid.set(
+                                            cx + dx,
+                                            cy + dy,
+                                            verbatim::world::cell::Cell::empty(),
+                                        );
                                     } else {
                                         game.grid.set_material(cx + dx, cy + dy, mat);
                                     }
@@ -242,7 +291,8 @@ fn run_gpu_mode<R: GpuRenderer>(title: &str) {
                 }
                 _ => {}
             }
-    }).expect("event loop error");
+        })
+        .expect("event loop error");
 }
 
 fn run_test_mode(cli: &Cli) {
@@ -292,8 +342,10 @@ fn run_replay_mode(cli: &Cli) {
             println!("=== Replay: {} events ===", player.recording().events.len());
             println!("Final tick: {}", state.tick);
             if let Some(ref p) = state.player {
-                println!("Player: {} hp={:.1}/{:.1} pos=({:.1},{:.1}) alive={}",
+                println!(
-                    p.kind, p.health, p.max_health, p.pos[0], p.pos[1], p.alive);
+                    "Player: {} hp={:.1}/{:.1} pos=({:.1},{:.1}) alive={}",
+                    p.kind, p.health, p.max_health, p.pos[0], p.pos[1], p.alive
+                );
             }
             println!("Entities: {}", state.entities.len());
             println!("\nFinal view:\n{}", state.view);
@@ -314,8 +366,14 @@ fn run_headless(ticks: u32) {
     let cam_y = py as i32 - 12;
 
     let mut log = String::new();
-    log.push_str(&format!("=== Verbatim Headless Run: {} ticks ===\n\n", ticks));
+    log.push_str(&format!(
-    log.push_str(&format!("World: {}x{}\n", game.grid.width, game.grid.height));
+        "=== Verbatim Headless Run: {} ticks ===\n\n",
+        ticks
+    ));
+    log.push_str(&format!(
+        "World: {}x{}\n",
+        game.grid.width, game.grid.height
+    ));
     log.push_str(&format!("Player start: ({:.1}, {:.1})\n", px, py));
     log.push_str(&format!("Camera: ({}, {})\n\n", cam_x, cam_y));
 
@@ -339,9 +397,19 @@ fn run_headless(ticks: u32) {
             log.push_str(&format!("Player: {:?}\n", player_info(&game)));
             log.push_str(&format!("Entities: {}\n", game.entities.all().len()));
 
-            let alive: Vec<_> = game.entities.all().iter()
+            let alive: Vec<_> = game
+                .entities
+                .all()
+                .iter()
                 .filter(|e| e.alive)
-                .map(|e| format!("{}(hp={:.0}, pos={:?})", ai::entity_kind_name(e.kind), e.health, e.center()))
+                .map(|e| {
+                    format!(
+                        "{}(hp={:.0}, pos={:?})",
+                        ai::entity_kind_name(e.kind),
+                        e.health,
+                        e.center()
+                    )
+                })
                 .collect();
             log.push_str(&format!("Alive entities: {}\n\n", alive.join(", ")));
         }
@@ -349,16 +417,27 @@ fn run_headless(ticks: u32) {
 
     let mut f = std::fs::File::create("headless_dump.txt").expect("Cannot create dump file");
     f.write_all(log.as_bytes()).expect("Cannot write dump");
-    eprintln!("Headless run complete: {} ticks, dump written to headless_dump.txt", ticks);
+    eprintln!(
+        "Headless run complete: {} ticks, dump written to headless_dump.txt",
+        ticks
+    );
 }
 
-fn dump_view(grid: &verbatim::world::grid::Grid, entities: &verbatim::entity::EntityManager, cam_x: i32, cam_y: i32, vw: usize, vh: usize) -> String {
+fn dump_view(
+    grid: &verbatim::world::grid::Grid,
+    entities: &verbatim::entity::EntityManager,
+    cam_x: i32,
+    cam_y: i32,
+    vw: usize,
+    vh: usize,
+) -> String {
     ai::render_view(grid, entities, cam_x, cam_y, vw, vh)
         .lines()
         .enumerate()
         .map(|(i, line)| format!("{:2}{}", (cam_y + i as i32) % 100, line))
         .collect::<Vec<_>>()
-        .join("\n") + "\n"
+        .join("\n")
+        + "\n"
 }
 
 fn player_info(game: &Game) -> String {
@@ -367,7 +446,17 @@ fn player_info(game: &Game) -> String {
         let body_count = e.bodies.iter().filter(|b| b.alive).count();
         let on_fire = e.on_fire;
         let kind = ai::entity_kind_name(e.kind);
-        format!("{} hp={:.1}/{:.1} pos=({:.1},{:.1}) bodies={}/{} on_fire={}", kind, e.health, e.max_health, cx, cy, body_count, e.bodies.len(), on_fire)
+        format!(
+            "{} hp={:.1}/{:.1} pos=({:.1},{:.1}) bodies={}/{} on_fire={}",
+            kind,
+            e.health,
+            e.max_health,
+            cx,
+            cy,
+            body_count,
+            e.bodies.len(),
+            on_fire
+        )
     } else {
         "None".to_string()
     }

src/render/graphics.rs

@@ -2,12 +2,12 @@ use ash::vk;
 use std::ffi::CString;
 use std::sync::Arc;
 
-use crate::entity::{EntityManager, EntityKind};
+use crate::entity::{EntityKind, EntityManager};
 use crate::world::cell::MaterialId;
 use crate::world::grid::Grid;
 
-const CHAR_W: u32 = 16;
+const CHAR_W: u32 = 10;
-const CHAR_H: u32 = 16;
+const CHAR_H: u32 = 10;
 const MAX_FRAMES: usize = 2;
 
 #[repr(C)]
@@ -75,7 +75,9 @@ impl GraphicsRenderer {
         let entry = unsafe { ash::Entry::load().map_err(|e| format!("Vulkan load: {e}"))? };
 
         use raw_window_handle::HasDisplayHandle;
-    let dh = window.display_handle().map_err(|e| format!("display_handle: {e}"))?;
+        let dh = window
+            .display_handle()
+            .map_err(|e| format!("display_handle: {e}"))?;
         let required_exts = ash_window::enumerate_required_extensions(dh.as_raw())
             .map_err(|e| format!("enumerate_required_extensions: {e:?}"))?;
 
@@ -84,15 +86,20 @@ impl GraphicsRenderer {
             .application_name(&app_name)
             .api_version(vk::API_VERSION_1_2);
         let mut ext_ptrs: Vec<*const i8> = required_exts.iter().map(|&p| p as *const i8).collect();
-    let avail_exts = unsafe { entry.enumerate_instance_extension_properties(None) }.unwrap_or_default();
+        let avail_exts =
+            unsafe { entry.enumerate_instance_extension_properties(None) }.unwrap_or_default();
         let has_debug = avail_exts.iter().any(|e| {
             let name = unsafe { std::ffi::CStr::from_ptr(e.extension_name.as_ptr() as *const i8) };
             name.to_str().unwrap_or("") == "VK_EXT_debug_utils"
         });
-    if has_debug { ext_ptrs.push(b"VK_EXT_debug_utils\0".as_ptr() as *const i8); }
+        if has_debug {
+            ext_ptrs.push(b"VK_EXT_debug_utils\0".as_ptr() as *const i8);
+        }
         let ci = vk::InstanceCreateInfo::default()
-        .application_info(&app_info).enabled_extension_names(&ext_ptrs);
+            .application_info(&app_info)
-    let instance = unsafe { entry.create_instance(&ci, None) }.map_err(|e| format!("instance: {e:?}"))?;
+            .enabled_extension_names(&ext_ptrs);
+        let instance =
+            unsafe { entry.create_instance(&ci, None) }.map_err(|e| format!("instance: {e:?}"))?;
 
         let surface = {
             use raw_window_handle::HasWindowHandle;
@@ -103,70 +110,118 @@ impl GraphicsRenderer {
         };
 
         let sl = ash::khr::surface::Instance::new(&entry, &instance);
-    let devices = unsafe { instance.enumerate_physical_devices() }.map_err(|e| format!("enum: {e:?}"))?;
+        let devices =
+            unsafe { instance.enumerate_physical_devices() }.map_err(|e| format!("enum: {e:?}"))?;
         let mut physical_device = vk::PhysicalDevice::null();
         let mut qf = 0u32;
         for &pd in &devices {
             let props = unsafe { instance.get_physical_device_properties(pd) };
-        if props.device_type == vk::PhysicalDeviceType::CPU { continue; }
+            if props.device_type == vk::PhysicalDeviceType::CPU {
+                continue;
+            }
             let qfs = unsafe { instance.get_physical_device_queue_family_properties(pd) };
             for (i, q) in qfs.iter().enumerate() {
                 if q.queue_flags.contains(vk::QueueFlags::GRAPHICS) {
-                let ok = unsafe { sl.get_physical_device_surface_support(pd, i as u32, surface) }.unwrap_or(false);
+                    let ok =
-                if ok { physical_device = pd; qf = i as u32; break; }
+                        unsafe { sl.get_physical_device_surface_support(pd, i as u32, surface) }
+                            .unwrap_or(false);
+                    if ok {
+                        physical_device = pd;
+                        qf = i as u32;
+                        break;
                     }
                 }
-        if physical_device != vk::PhysicalDevice::null() { break; }
             }
-    if physical_device == vk::PhysicalDevice::null() { return Err("No GPU".to_string()); }
+            if physical_device != vk::PhysicalDevice::null() {
+                break;
+            }
+        }
+        if physical_device == vk::PhysicalDevice::null() {
+            return Err("No GPU".to_string());
+        }
 
         let qp = [1.0f32];
-    let qi = vk::DeviceQueueCreateInfo::default().queue_family_index(qf).queue_priorities(&qp);
+        let qi = vk::DeviceQueueCreateInfo::default()
+            .queue_family_index(qf)
+            .queue_priorities(&qp);
         let dev_ext_names: Vec<CString> = vec![CString::new("VK_KHR_swapchain").unwrap()];
         let dev_ext_ptrs: Vec<*const i8> = dev_ext_names.iter().map(|n| n.as_ptr()).collect();
         let dci = vk::DeviceCreateInfo::default()
             .queue_create_infos(std::slice::from_ref(&qi))
             .enabled_extension_names(&dev_ext_ptrs);
-    let device = unsafe { instance.create_device(physical_device, &dci, None) }.map_err(|e| format!("device: {e:?}"))?;
+        let device = unsafe { instance.create_device(physical_device, &dci, None) }
+            .map_err(|e| format!("device: {e:?}"))?;
         let graphics_queue = unsafe { device.get_device_queue(qf, 0) };
 
         let swapchain_loader = ash::khr::swapchain::Device::new(&instance, &device);
-    let caps = unsafe { sl.get_physical_device_surface_capabilities(physical_device, surface) }.map_err(|e| format!("caps: {e:?}"))?;
+        let caps = unsafe { sl.get_physical_device_surface_capabilities(physical_device, surface) }
-    let format = vk::SurfaceFormatKHR { format: vk::Format::B8G8R8A8_UNORM, color_space: vk::ColorSpaceKHR::SRGB_NONLINEAR };
+            .map_err(|e| format!("caps: {e:?}"))?;
-    let extent = if caps.current_extent.width != u32::MAX { caps.current_extent }
+        let format = vk::SurfaceFormatKHR {
-        else { vk::Extent2D { width: grid_w as u32 * CHAR_W, height: grid_h as u32 * CHAR_H } };
+            format: vk::Format::B8G8R8A8_UNORM,
+            color_space: vk::ColorSpaceKHR::SRGB_NONLINEAR,
+        };
+        let extent = if caps.current_extent.width != u32::MAX {
+            caps.current_extent
+        } else {
+            vk::Extent2D {
+                width: grid_w as u32 * CHAR_W,
+                height: grid_h as u32 * CHAR_H,
+            }
+        };
         let ic = caps.min_image_count.max(2);
         let qf_slice = [qf];
         let sci = vk::SwapchainCreateInfoKHR::default()
-        .surface(surface).min_image_count(ic)
+            .surface(surface)
-        .image_format(format.format).image_color_space(format.color_space)
+            .min_image_count(ic)
-        .image_extent(extent).image_array_layers(1)
+            .image_format(format.format)
+            .image_color_space(format.color_space)
+            .image_extent(extent)
+            .image_array_layers(1)
             .image_usage(vk::ImageUsageFlags::COLOR_ATTACHMENT)
             .image_sharing_mode(vk::SharingMode::EXCLUSIVE)
             .queue_family_indices(&qf_slice)
             .pre_transform(caps.current_transform)
             .composite_alpha(vk::CompositeAlphaFlagsKHR::OPAQUE)
-        .present_mode(vk::PresentModeKHR::FIFO).clipped(true);
+            .present_mode(vk::PresentModeKHR::FIFO)
-    let swapchain = unsafe { swapchain_loader.create_swapchain(&sci, None) }.map_err(|e| format!("swapchain: {e:?}"))?;
+            .clipped(true);
-    let swapchain_images = unsafe { swapchain_loader.get_swapchain_images(swapchain) }.map_err(|e| format!("images: {e:?}"))?;
+        let swapchain = unsafe { swapchain_loader.create_swapchain(&sci, None) }
-    let swapchain_image_views: Vec<_> = swapchain_images.iter()
+            .map_err(|e| format!("swapchain: {e:?}"))?;
+        let swapchain_images = unsafe { swapchain_loader.get_swapchain_images(swapchain) }
+            .map_err(|e| format!("images: {e:?}"))?;
+        let swapchain_image_views: Vec<_> = swapchain_images
+            .iter()
             .map(|&img| {
                 let vi = vk::ImageViewCreateInfo::default()
-                .image(img).view_type(vk::ImageViewType::TYPE_2D).format(format.format)
+                    .image(img)
-                .subresource_range(vk::ImageSubresourceRange { aspect_mask: vk::ImageAspectFlags::COLOR, base_mip_level: 0, level_count: 1, base_array_layer: 0, layer_count: 1 });
+                    .view_type(vk::ImageViewType::TYPE_2D)
+                    .format(format.format)
+                    .subresource_range(vk::ImageSubresourceRange {
+                        aspect_mask: vk::ImageAspectFlags::COLOR,
+                        base_mip_level: 0,
+                        level_count: 1,
+                        base_array_layer: 0,
+                        layer_count: 1,
+                    });
                 unsafe { device.create_image_view(&vi, None).expect("image_view") }
-        }).collect();
+            })
+            .collect();
 
         let att = vk::AttachmentDescription::default()
-        .format(format.format).samples(vk::SampleCountFlags::TYPE_1)
+            .format(format.format)
-        .load_op(vk::AttachmentLoadOp::CLEAR).store_op(vk::AttachmentStoreOp::STORE)
+            .samples(vk::SampleCountFlags::TYPE_1)
-        .initial_layout(vk::ImageLayout::UNDEFINED).final_layout(vk::ImageLayout::PRESENT_SRC_KHR);
+            .load_op(vk::AttachmentLoadOp::CLEAR)
-    let att_ref = vk::AttachmentReference::default().attachment(0).layout(vk::ImageLayout::COLOR_ATTACHMENT_OPTIMAL);
+            .store_op(vk::AttachmentStoreOp::STORE)
+            .initial_layout(vk::ImageLayout::UNDEFINED)
+            .final_layout(vk::ImageLayout::PRESENT_SRC_KHR);
+        let att_ref = vk::AttachmentReference::default()
+            .attachment(0)
+            .layout(vk::ImageLayout::COLOR_ATTACHMENT_OPTIMAL);
         let subpass = vk::SubpassDescription::default()
             .pipeline_bind_point(vk::PipelineBindPoint::GRAPHICS)
             .color_attachments(std::slice::from_ref(&att_ref));
         let dep = vk::SubpassDependency::default()
-        .src_subpass(vk::SUBPASS_EXTERNAL).dst_subpass(0)
+            .src_subpass(vk::SUBPASS_EXTERNAL)
+            .dst_subpass(0)
             .src_stage_mask(vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT)
             .dst_stage_mask(vk::PipelineStageFlags::COLOR_ATTACHMENT_OUTPUT)
             .dst_access_mask(vk::AccessFlags::COLOR_ATTACHMENT_WRITE);
@@ -174,67 +229,159 @@ impl GraphicsRenderer {
             .attachments(std::slice::from_ref(&att))
             .subpasses(std::slice::from_ref(&subpass))
             .dependencies(std::slice::from_ref(&dep));
-    let render_pass = unsafe { device.create_render_pass(&rpci, None) }.map_err(|e| format!("render_pass: {e:?}"))?;
+        let render_pass = unsafe { device.create_render_pass(&rpci, None) }
+            .map_err(|e| format!("render_pass: {e:?}"))?;
 
         // Pipeline — no atlas, no descriptor set, just colored quads
         let vert_spv = include_bytes!("../../assets/shaders/graphics_vert.spv");
         let frag_spv = include_bytes!("../../assets/shaders/graphics_frag.spv");
-    let vert_code: Vec<u32> = vert_spv.chunks_exact(4).map(|c| u32::from_ne_bytes([c[0], c[1], c[2], c[3]])).collect();
+        let vert_code: Vec<u32> = vert_spv
-    let frag_code: Vec<u32> = frag_spv.chunks_exact(4).map(|c| u32::from_ne_bytes([c[0], c[1], c[2], c[3]])).collect();
+            .chunks_exact(4)
-    let vm = unsafe { device.create_shader_module(&vk::ShaderModuleCreateInfo::default().code(&vert_code), None) }.map_err(|e| format!("vert: {e:?}"))?;
+            .map(|c| u32::from_ne_bytes([c[0], c[1], c[2], c[3]]))
-    let fm = unsafe { device.create_shader_module(&vk::ShaderModuleCreateInfo::default().code(&frag_code), None) }.map_err(|e| format!("frag: {e:?}"))?;
+            .collect();
+        let frag_code: Vec<u32> = frag_spv
+            .chunks_exact(4)
+            .map(|c| u32::from_ne_bytes([c[0], c[1], c[2], c[3]]))
+            .collect();
+        let vm = unsafe {
+            device.create_shader_module(
+                &vk::ShaderModuleCreateInfo::default().code(&vert_code),
+                None,
+            )
+        }
+        .map_err(|e| format!("vert: {e:?}"))?;
+        let fm = unsafe {
+            device.create_shader_module(
+                &vk::ShaderModuleCreateInfo::default().code(&frag_code),
+                None,
+            )
+        }
+        .map_err(|e| format!("frag: {e:?}"))?;
         let main = CString::new("main").unwrap();
-    let vs = vk::PipelineShaderStageCreateInfo::default().stage(vk::ShaderStageFlags::VERTEX).module(vm).name(&main);
+        let vs = vk::PipelineShaderStageCreateInfo::default()
-    let fs = vk::PipelineShaderStageCreateInfo::default().stage(vk::ShaderStageFlags::FRAGMENT).module(fm).name(&main);
+            .stage(vk::ShaderStageFlags::VERTEX)
+            .module(vm)
+            .name(&main);
+        let fs = vk::PipelineShaderStageCreateInfo::default()
+            .stage(vk::ShaderStageFlags::FRAGMENT)
+            .module(fm)
+            .name(&main);
 
         let bindings = [
-        vk::VertexInputBindingDescription { binding: 0, stride: 8, input_rate: vk::VertexInputRate::VERTEX },
+            vk::VertexInputBindingDescription {
-        vk::VertexInputBindingDescription { binding: 1, stride: std::mem::size_of::<ColorInstance>() as u32, input_rate: vk::VertexInputRate::INSTANCE },
+                binding: 0,
+                stride: 8,
+                input_rate: vk::VertexInputRate::VERTEX,
+            },
+            vk::VertexInputBindingDescription {
+                binding: 1,
+                stride: std::mem::size_of::<ColorInstance>() as u32,
+                input_rate: vk::VertexInputRate::INSTANCE,
+            },
         ];
         let attrs = [
-        vk::VertexInputAttributeDescription { location: 0, binding: 0, format: vk::Format::R32G32_SFLOAT, offset: 0 },
+            vk::VertexInputAttributeDescription {
-        vk::VertexInputAttributeDescription { location: 1, binding: 1, format: vk::Format::R32G32_SFLOAT, offset: 0 },
+                location: 0,
-        vk::VertexInputAttributeDescription { location: 2, binding: 1, format: vk::Format::R8G8B8A8_UNORM, offset: 8 },
+                binding: 0,
+                format: vk::Format::R32G32_SFLOAT,
+                offset: 0,
+            },
+            vk::VertexInputAttributeDescription {
+                location: 1,
+                binding: 1,
+                format: vk::Format::R32G32_SFLOAT,
+                offset: 0,
+            },
+            vk::VertexInputAttributeDescription {
+                location: 2,
+                binding: 1,
+                format: vk::Format::R8G8B8A8_UNORM,
+                offset: 8,
+            },
         ];
         let vi = vk::PipelineVertexInputStateCreateInfo::default()
-        .vertex_binding_descriptions(&bindings).vertex_attribute_descriptions(&attrs);
+            .vertex_binding_descriptions(&bindings)
-    let ia = vk::PipelineInputAssemblyStateCreateInfo::default().topology(vk::PrimitiveTopology::TRIANGLE_LIST);
+            .vertex_attribute_descriptions(&attrs);
+        let ia = vk::PipelineInputAssemblyStateCreateInfo::default()
+            .topology(vk::PrimitiveTopology::TRIANGLE_LIST);
         let dynamic_states = [vk::DynamicState::VIEWPORT, vk::DynamicState::SCISSOR];
-    let dynamic_state = vk::PipelineDynamicStateCreateInfo::default().dynamic_states(&dynamic_states);
+        let dynamic_state =
-    let vs_state = vk::PipelineViewportStateCreateInfo::default().viewport_count(1).scissor_count(1);
+            vk::PipelineDynamicStateCreateInfo::default().dynamic_states(&dynamic_states);
-    let rs = vk::PipelineRasterizationStateCreateInfo::default().line_width(1.0).cull_mode(vk::CullModeFlags::NONE);
+        let vs_state = vk::PipelineViewportStateCreateInfo::default()
-    let ms = vk::PipelineMultisampleStateCreateInfo::default().rasterization_samples(vk::SampleCountFlags::TYPE_1);
+            .viewport_count(1)
-    let cba = vk::PipelineColorBlendAttachmentState::default().color_write_mask(vk::ColorComponentFlags::RGBA);
+            .scissor_count(1);
-    let cb = vk::PipelineColorBlendStateCreateInfo::default().attachments(std::slice::from_ref(&cba));
+        let rs = vk::PipelineRasterizationStateCreateInfo::default()
-    let pcr = vk::PushConstantRange { stage_flags: vk::ShaderStageFlags::VERTEX, offset: 0, size: std::mem::size_of::<PushConstants>() as u32 };
+            .line_width(1.0)
-    let pli = vk::PipelineLayoutCreateInfo::default().push_constant_ranges(std::slice::from_ref(&pcr));
+            .cull_mode(vk::CullModeFlags::NONE);
-    let pipeline_layout = unsafe { device.create_pipeline_layout(&pli, None) }.map_err(|e| format!("pipeline_layout: {e:?}"))?;
+        let ms = vk::PipelineMultisampleStateCreateInfo::default()
+            .rasterization_samples(vk::SampleCountFlags::TYPE_1);
+        let cba = vk::PipelineColorBlendAttachmentState::default()
+            .color_write_mask(vk::ColorComponentFlags::RGBA);
+        let cb = vk::PipelineColorBlendStateCreateInfo::default()
+            .attachments(std::slice::from_ref(&cba));
+        let pcr = vk::PushConstantRange {
+            stage_flags: vk::ShaderStageFlags::VERTEX,
+            offset: 0,
+            size: std::mem::size_of::<PushConstants>() as u32,
+        };
+        let pli = vk::PipelineLayoutCreateInfo::default()
+            .push_constant_ranges(std::slice::from_ref(&pcr));
+        let pipeline_layout = unsafe { device.create_pipeline_layout(&pli, None) }
+            .map_err(|e| format!("pipeline_layout: {e:?}"))?;
         let stages = [vs, fs];
         let gpci = vk::GraphicsPipelineCreateInfo::default()
-        .stages(&stages).vertex_input_state(&vi).input_assembly_state(&ia)
+            .stages(&stages)
-        .viewport_state(&vs_state).rasterization_state(&rs).multisample_state(&ms)
+            .vertex_input_state(&vi)
-        .color_blend_state(&cb).dynamic_state(&dynamic_state)
+            .input_assembly_state(&ia)
-        .layout(pipeline_layout).render_pass(render_pass).subpass(0);
+            .viewport_state(&vs_state)
-    let pipes = unsafe { device.create_graphics_pipelines(vk::PipelineCache::null(), std::slice::from_ref(&gpci), None) }
+            .rasterization_state(&rs)
+            .multisample_state(&ms)
+            .color_blend_state(&cb)
+            .dynamic_state(&dynamic_state)
+            .layout(pipeline_layout)
+            .render_pass(render_pass)
+            .subpass(0);
+        let pipes = unsafe {
+            device.create_graphics_pipelines(
+                vk::PipelineCache::null(),
+                std::slice::from_ref(&gpci),
+                None,
+            )
+        }
         .map_err(|(_, e)| format!("pipeline: {e:?}"))?;
-    unsafe { device.destroy_shader_module(vm, None); device.destroy_shader_module(fm, None); }
+        unsafe {
+            device.destroy_shader_module(vm, None);
+            device.destroy_shader_module(fm, None);
+        }
         let pipeline = pipes[0];
 
-    let framebuffers: Vec<_> = swapchain_image_views.iter()
+        let framebuffers: Vec<_> = swapchain_image_views
+            .iter()
             .map(|&view| {
                 let fci = vk::FramebufferCreateInfo::default()
-                .render_pass(render_pass).attachments(std::slice::from_ref(&view))
+                    .render_pass(render_pass)
-                .width(extent.width).height(extent.height).layers(1);
+                    .attachments(std::slice::from_ref(&view))
+                    .width(extent.width)
+                    .height(extent.height)
+                    .layers(1);
                 unsafe { device.create_framebuffer(&fci, None).expect("fb") }
-        }).collect();
+            })
+            .collect();
 
         let command_pool = {
-        let cpci = vk::CommandPoolCreateInfo::default().queue_family_index(qf).flags(vk::CommandPoolCreateFlags::RESET_COMMAND_BUFFER);
+            let cpci = vk::CommandPoolCreateInfo::default()
-        unsafe { device.create_command_pool(&cpci, None) }.map_err(|e| format!("cmd_pool: {e:?}"))?
+                .queue_family_index(qf)
+                .flags(vk::CommandPoolCreateFlags::RESET_COMMAND_BUFFER);
+            unsafe { device.create_command_pool(&cpci, None) }
+                .map_err(|e| format!("cmd_pool: {e:?}"))?
         };
         let command_buffers = {
-        let cai = vk::CommandBufferAllocateInfo::default().command_pool(command_pool).level(vk::CommandBufferLevel::PRIMARY).command_buffer_count(framebuffers.len() as u32);
+            let cai = vk::CommandBufferAllocateInfo::default()
-        unsafe { device.allocate_command_buffers(&cai) }.map_err(|e| format!("cmd_bufs: {e:?}"))?
+                .command_pool(command_pool)
+                .level(vk::CommandBufferLevel::PRIMARY)
+                .command_buffer_count(framebuffers.len() as u32);
+            unsafe { device.allocate_command_buffers(&cai) }
+                .map_err(|e| format!("cmd_bufs: {e:?}"))?
         };
 
         let mut image_available = Vec::new();
@@ -242,9 +389,24 @@ impl GraphicsRenderer {
         let mut in_flight = Vec::new();
         for _ in 0..MAX_FRAMES {
             unsafe {
-            image_available.push(device.create_semaphore(&vk::SemaphoreCreateInfo::default(), None).map_err(|e| format!("sem: {e:?}"))?);
+                image_available.push(
-            render_finished.push(device.create_semaphore(&vk::SemaphoreCreateInfo::default(), None).map_err(|e| format!("sem: {e:?}"))?);
+                    device
-            in_flight.push(device.create_fence(&vk::FenceCreateInfo::default().flags(vk::FenceCreateFlags::SIGNALED), None).map_err(|e| format!("fence: {e:?}"))?);
+                        .create_semaphore(&vk::SemaphoreCreateInfo::default(), None)
+                        .map_err(|e| format!("sem: {e:?}"))?,
+                );
+                render_finished.push(
+                    device
+                        .create_semaphore(&vk::SemaphoreCreateInfo::default(), None)
+                        .map_err(|e| format!("sem: {e:?}"))?,
+                );
+                in_flight.push(
+                    device
+                        .create_fence(
+                            &vk::FenceCreateInfo::default().flags(vk::FenceCreateFlags::SIGNALED),
+                            None,
+                        )
+                        .map_err(|e| format!("fence: {e:?}"))?,
+                );
             }
         }
 
@@ -252,20 +414,41 @@ impl GraphicsRenderer {
         let find_mem = |filter: u32, props: vk::MemoryPropertyFlags| -> Result<u32, String> {
             let mp = unsafe { instance.get_physical_device_memory_properties(physical_device) };
             for (i, mt) in mp.memory_types.iter().enumerate() {
-            if (filter & (1 << i)) != 0 && mt.property_flags.contains(props) { return Ok(i as u32); }
+                if (filter & (1 << i)) != 0 && mt.property_flags.contains(props) {
+                    return Ok(i as u32);
+                }
             }
             Err("No memory type".to_string())
         };
-    let make_buf = |data: &[u8], usage: vk::BufferUsageFlags| -> Result<(vk::Buffer, vk::DeviceMemory), String> {
+        let make_buf = |data: &[u8],
+                        usage: vk::BufferUsageFlags|
+         -> Result<(vk::Buffer, vk::DeviceMemory), String> {
             let sz = data.len() as vk::DeviceSize;
-        let bi = vk::BufferCreateInfo::default().size(sz).usage(usage).sharing_mode(vk::SharingMode::EXCLUSIVE);
+            let bi = vk::BufferCreateInfo::default()
-        let buf = unsafe { device.create_buffer(&bi, None) }.map_err(|e| format!("buf: {e:?}"))?;
+                .size(sz)
+                .usage(usage)
+                .sharing_mode(vk::SharingMode::EXCLUSIVE);
+            let buf =
+                unsafe { device.create_buffer(&bi, None) }.map_err(|e| format!("buf: {e:?}"))?;
             let req = unsafe { device.get_buffer_memory_requirements(buf) };
-        let mt = find_mem(req.memory_type_bits, vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT)?;
+            let mt = find_mem(
-        let mem = unsafe { device.allocate_memory(&vk::MemoryAllocateInfo::default().allocation_size(req.size).memory_type_index(mt), None) }.map_err(|e| format!("mem: {e:?}"))?;
+                req.memory_type_bits,
+                vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT,
+            )?;
+            let mem = unsafe {
+                device.allocate_memory(
+                    &vk::MemoryAllocateInfo::default()
+                        .allocation_size(req.size)
+                        .memory_type_index(mt),
+                    None,
+                )
+            }
+            .map_err(|e| format!("mem: {e:?}"))?;
             unsafe {
                 device.bind_buffer_memory(buf, mem, 0).expect("bind");
-            let ptr = device.map_memory(mem, 0, sz, vk::MemoryMapFlags::default()).expect("map");
+                let ptr = device
+                    .map_memory(mem, 0, sz, vk::MemoryMapFlags::default())
+                    .expect("map");
                 std::ptr::copy_nonoverlapping(data.as_ptr(), ptr as *mut u8, data.len());
                 device.unmap_memory(mem);
             }
@@ -273,32 +456,79 @@ impl GraphicsRenderer {
         };
         let verts: [f32; 8] = [0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 1.0, 1.0];
         let indices: [u16; 6] = [0, 1, 2, 1, 3, 2];
-    let (vertex_buffer, vertex_memory) = make_buf(bytemuck::cast_slice(&verts), vk::BufferUsageFlags::VERTEX_BUFFER)?;
+        let (vertex_buffer, vertex_memory) = make_buf(
-    let (index_buffer, index_memory) = make_buf(bytemuck::cast_slice(&indices), vk::BufferUsageFlags::INDEX_BUFFER)?;
+            bytemuck::cast_slice(&verts),
+            vk::BufferUsageFlags::VERTEX_BUFFER,
+        )?;
+        let (index_buffer, index_memory) = make_buf(
+            bytemuck::cast_slice(&indices),
+            vk::BufferUsageFlags::INDEX_BUFFER,
+        )?;
 
         // Instance buffer
         let instance_count = grid_w * grid_h;
         let inst_sz = (instance_count * std::mem::size_of::<ColorInstance>()) as vk::DeviceSize;
-    let ibi = vk::BufferCreateInfo::default().size(inst_sz).usage(vk::BufferUsageFlags::VERTEX_BUFFER).sharing_mode(vk::SharingMode::EXCLUSIVE);
+        let ibi = vk::BufferCreateInfo::default()
-    let instance_buffer = unsafe { device.create_buffer(&ibi, None) }.map_err(|e| format!("inst buf: {e:?}"))?;
+            .size(inst_sz)
+            .usage(vk::BufferUsageFlags::VERTEX_BUFFER)
+            .sharing_mode(vk::SharingMode::EXCLUSIVE);
+        let instance_buffer =
+            unsafe { device.create_buffer(&ibi, None) }.map_err(|e| format!("inst buf: {e:?}"))?;
         let ireq = unsafe { device.get_buffer_memory_requirements(instance_buffer) };
-    let imt = find_mem(ireq.memory_type_bits, vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT)?;
+        let imt = find_mem(
-    let instance_memory = unsafe { device.allocate_memory(&vk::MemoryAllocateInfo::default().allocation_size(ireq.size).memory_type_index(imt), None) }.map_err(|e| format!("inst mem: {e:?}"))?;
+            ireq.memory_type_bits,
+            vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT,
+        )?;
+        let instance_memory = unsafe {
+            device.allocate_memory(
+                &vk::MemoryAllocateInfo::default()
+                    .allocation_size(ireq.size)
+                    .memory_type_index(imt),
+                None,
+            )
+        }
+        .map_err(|e| format!("inst mem: {e:?}"))?;
         let instance_ptr = unsafe {
-        device.bind_buffer_memory(instance_buffer, instance_memory, 0).expect("bind inst");
+            device
-        let ptr = device.map_memory(instance_memory, 0, inst_sz, vk::MemoryMapFlags::default()).expect("map inst");
+                .bind_buffer_memory(instance_buffer, instance_memory, 0)
+                .expect("bind inst");
+            let ptr = device
+                .map_memory(instance_memory, 0, inst_sz, vk::MemoryMapFlags::default())
+                .expect("map inst");
             ptr as *mut ColorInstance
         };
 
         Ok(Self {
-        grid_w, grid_h,
+            grid_w,
-        entry, instance, surface, physical_device, device, graphics_queue,
+            grid_h,
-        swapchain_loader, swapchain, swapchain_image_views, swapchain_extent: extent,
+            entry,
-        render_pass, pipeline, pipeline_layout, framebuffers,
+            instance,
-        command_pool, command_buffers,
+            surface,
-        image_available, render_finished, in_flight, frame_index: 0,
+            physical_device,
-        vertex_buffer, vertex_memory, index_buffer, index_memory,
+            device,
-        instance_buffer, instance_memory, instance_ptr, instance_count,
+            graphics_queue,
+            swapchain_loader,
+            swapchain,
+            swapchain_image_views,
+            swapchain_extent: extent,
+            render_pass,
+            pipeline,
+            pipeline_layout,
+            framebuffers,
+            command_pool,
+            command_buffers,
+            image_available,
+            render_finished,
+            in_flight,
+            frame_index: 0,
+            vertex_buffer,
+            vertex_memory,
+            index_buffer,
+            index_memory,
+            instance_buffer,
+            instance_memory,
+            instance_ptr,
+            instance_count,
             window,
         })
     }
@@ -306,16 +536,21 @@ impl GraphicsRenderer {
     pub fn render(&mut self, grid: &Grid, entities: &EntityManager, cam_x: i32, cam_y: i32) {
         self.check_resize();
 
-        let mut entity_map: std::collections::HashMap<(i32, i32), [u8; 4]> = std::collections::HashMap::new();
+        let mut entity_map: std::collections::HashMap<(i32, i32), [u8; 4]> =
+            std::collections::HashMap::new();
         for e in entities.all() {
             for b in &e.bodies {
-                if !b.alive { continue; }
+                if !b.alive {
+                    continue;
+                }
                 let sx = b.x as i32 - cam_x;
                 let sy = b.y as i32 - cam_y;
                 if sx >= 0 && sx < self.grid_w as i32 && sy >= 0 && sy < self.grid_h as i32 {
-                    let fg = if e.on_fire { [255, 160, 40, 255] }
+                    let fg = if e.on_fire {
-                    else if !e.alive { [100, 60, 60, 255] }
+                        [255, 160, 40, 255]
-                    else {
+                    } else if !e.alive {
+                        [100, 60, 60, 255]
+                    } else {
                         match e.kind {
                             EntityKind::Player => [255, 255, 100, 255],
                             EntityKind::Goblin => [100, 220, 100, 255],
@@ -327,7 +562,8 @@ impl GraphicsRenderer {
             }
         }
 
-        let instances = unsafe { std::slice::from_raw_parts_mut(self.instance_ptr, self.instance_count) };
+        let instances =
+            unsafe { std::slice::from_raw_parts_mut(self.instance_ptr, self.instance_count) };
         let bg_default = [10u8, 10, 15, 255];
 
         for dy in 0..self.grid_h {
@@ -370,10 +606,16 @@ impl GraphicsRenderer {
             let _ = device.reset_fences(&[self.in_flight[frame]]);
 
             let image_index = match self.swapchain_loader.acquire_next_image(
-                self.swapchain, u64::MAX, self.image_available[frame], vk::Fence::null()
+                self.swapchain,
+                u64::MAX,
+                self.image_available[frame],
+                vk::Fence::null(),
             ) {
                 Ok((idx, _)) => idx as usize,
-                Err(e) => { eprintln!("acquire: {e:?}"); return; }
+                Err(e) => {
+                    eprintln!("acquire: {e:?}");
+                    return;
+                }
             };
 
             let cmd = self.command_buffers[frame];
@@ -381,36 +623,59 @@ impl GraphicsRenderer {
             let _ = device.begin_command_buffer(cmd, &vk::CommandBufferBeginInfo::default());
 
             let clear = vk::ClearValue {
-                color: vk::ClearColorValue { float32: [10.0/255.0, 10.0/255.0, 15.0/255.0, 1.0] },
+                color: vk::ClearColorValue {
+                    float32: [10.0 / 255.0, 10.0 / 255.0, 15.0 / 255.0, 1.0],
+                },
             };
             let rp_info = vk::RenderPassBeginInfo::default()
                 .render_pass(self.render_pass)
                 .framebuffer(self.framebuffers[image_index])
-                .render_area(vk::Rect2D { offset: vk::Offset2D::default(), extent: self.swapchain_extent })
+                .render_area(vk::Rect2D {
+                    offset: vk::Offset2D::default(),
+                    extent: self.swapchain_extent,
+                })
                 .clear_values(std::slice::from_ref(&clear));
 
             device.cmd_begin_render_pass(cmd, &rp_info, vk::SubpassContents::INLINE);
             device.cmd_bind_pipeline(cmd, vk::PipelineBindPoint::GRAPHICS, self.pipeline);
 
             let viewport = vk::Viewport {
-                x: 0.0, y: 0.0,
+                x: 0.0,
+                y: 0.0,
                 width: self.swapchain_extent.width as f32,
                 height: self.swapchain_extent.height as f32,
-                min_depth: 0.0, max_depth: 1.0,
+                min_depth: 0.0,
+                max_depth: 1.0,
+            };
+            let scissor = vk::Rect2D {
+                offset: vk::Offset2D::default(),
+                extent: self.swapchain_extent,
             };
-            let scissor = vk::Rect2D { offset: vk::Offset2D::default(), extent: self.swapchain_extent };
             device.cmd_set_viewport(cmd, 0, std::slice::from_ref(&viewport));
             device.cmd_set_scissor(cmd, 0, std::slice::from_ref(&scissor));
 
-            device.cmd_bind_vertex_buffers(cmd, 0, &[self.vertex_buffer, self.instance_buffer], &[0, 0]);
+            device.cmd_bind_vertex_buffers(
+                cmd,
+                0,
+                &[self.vertex_buffer, self.instance_buffer],
+                &[0, 0],
+            );
             device.cmd_bind_index_buffer(cmd, self.index_buffer, 0, vk::IndexType::UINT16);
 
             let pc = PushConstants {
-                screen_size: [self.swapchain_extent.width as f32, self.swapchain_extent.height as f32],
+                screen_size: [
+                    self.swapchain_extent.width as f32,
+                    self.swapchain_extent.height as f32,
+                ],
                 cell_size: [CHAR_W as f32, CHAR_H as f32],
             };
-            device.cmd_push_constants(cmd, self.pipeline_layout, vk::ShaderStageFlags::VERTEX,
+            device.cmd_push_constants(
-                0, bytemuck::bytes_of(&pc));
+                cmd,
+                self.pipeline_layout,
+                vk::ShaderStageFlags::VERTEX,
+                0,
+                bytemuck::bytes_of(&pc),
+            );
 
             device.cmd_draw_indexed(cmd, 6, self.instance_count as u32, 0, 0, 0);
             device.cmd_end_render_pass(cmd);
@@ -422,25 +687,37 @@ impl GraphicsRenderer {
                 .wait_dst_stage_mask(&wait_stages)
                 .command_buffers(std::slice::from_ref(&cmd))
                 .signal_semaphores(std::slice::from_ref(&self.render_finished[frame]));
-            let _ = device.queue_submit(self.graphics_queue, std::slice::from_ref(&submit_info), self.in_flight[frame]);
+            let _ = device.queue_submit(
+                self.graphics_queue,
+                std::slice::from_ref(&submit_info),
+                self.in_flight[frame],
+            );
 
             let img_idx = image_index as u32;
             let present_info = vk::PresentInfoKHR::default()
                 .wait_semaphores(std::slice::from_ref(&self.render_finished[frame]))
                 .swapchains(std::slice::from_ref(&self.swapchain))
                 .image_indices(std::slice::from_ref(&img_idx));
-            let _ = self.swapchain_loader.queue_present(self.graphics_queue, &present_info);
+            let _ = self
+                .swapchain_loader
+                .queue_present(self.graphics_queue, &present_info);
         }
 
         self.frame_index = (self.frame_index + 1) % MAX_FRAMES;
     }
 
-    pub fn grid_w(&self) -> usize { self.grid_w }
+    pub fn grid_w(&self) -> usize {
-    pub fn grid_h(&self) -> usize { self.grid_h }
+        self.grid_w
+    }
+    pub fn grid_h(&self) -> usize {
+        self.grid_h
+    }
 
     fn check_resize(&mut self) {
         let sl = ash::khr::surface::Instance::new(&self.entry, &self.instance);
-        let caps = match unsafe { sl.get_physical_device_surface_capabilities(self.physical_device, self.surface) } {
+        let caps = match unsafe {
+            sl.get_physical_device_surface_capabilities(self.physical_device, self.surface)
+        } {
             Ok(c) => c,
             Err(_) => return,
         };
@@ -457,7 +734,8 @@ impl GraphicsRenderer {
         };
 
         if new_extent.width == self.swapchain_extent.width
-            && new_extent.height == self.swapchain_extent.height {
+            && new_extent.height == self.swapchain_extent.height
+        {
             return;
         }
 
@@ -465,11 +743,21 @@ impl GraphicsRenderer {
             return;
         }
 
-        unsafe { let _ = self.device.device_wait_idle(); }
+        unsafe {
+            let _ = self.device.device_wait_idle();
+        }
 
         // Destroy old swapchain resources
-        for &fb in &self.framebuffers { unsafe { self.device.destroy_framebuffer(fb, None); } }
+        for &fb in &self.framebuffers {
-        for &v in &self.swapchain_image_views { unsafe { self.device.destroy_image_view(v, None); } }
+            unsafe {
+                self.device.destroy_framebuffer(fb, None);
+            }
+        }
+        for &v in &self.swapchain_image_views {
+            unsafe {
+                self.device.destroy_image_view(v, None);
+            }
+        }
 
         // Recreate swapchain
         let sci = vk::SwapchainCreateInfoKHR::default()
@@ -492,40 +780,61 @@ impl GraphicsRenderer {
             Err(_) => return,
         };
 
-        let new_images = match unsafe { self.swapchain_loader.get_swapchain_images(new_swapchain) } {
+        let new_images = match unsafe { self.swapchain_loader.get_swapchain_images(new_swapchain) }
+        {
             Ok(i) => i,
             Err(_) => return,
         };
 
-        let new_views: Vec<_> = new_images.iter()
+        let new_views: Vec<_> = new_images
+            .iter()
             .map(|&img| {
                 let vi = vk::ImageViewCreateInfo::default()
-                    .image(img).view_type(vk::ImageViewType::TYPE_2D)
+                    .image(img)
+                    .view_type(vk::ImageViewType::TYPE_2D)
                     .format(vk::Format::B8G8R8A8_UNORM)
                     .subresource_range(vk::ImageSubresourceRange {
                         aspect_mask: vk::ImageAspectFlags::COLOR,
-                        base_mip_level: 0, level_count: 1,
+                        base_mip_level: 0,
-                        base_array_layer: 0, layer_count: 1,
+                        level_count: 1,
+                        base_array_layer: 0,
+                        layer_count: 1,
                     });
-                unsafe { self.device.create_image_view(&vi, None).expect("image_view") }
+                unsafe {
-            }).collect();
+                    self.device
+                        .create_image_view(&vi, None)
+                        .expect("image_view")
+                }
+            })
+            .collect();
 
-        let new_framebuffers: Vec<_> = new_views.iter()
+        let new_framebuffers: Vec<_> = new_views
+            .iter()
             .map(|&view| {
                 let fci = vk::FramebufferCreateInfo::default()
                     .render_pass(self.render_pass)
                     .attachments(std::slice::from_ref(&view))
-                    .width(new_extent.width).height(new_extent.height).layers(1);
+                    .width(new_extent.width)
+                    .height(new_extent.height)
+                    .layers(1);
                 unsafe { self.device.create_framebuffer(&fci, None).expect("fb") }
-            }).collect();
+            })
+            .collect();
 
         // Reallocate command buffers for new count
-        unsafe { self.device.free_command_buffers(self.command_pool, &self.command_buffers); }
+        unsafe {
+            self.device
+                .free_command_buffers(self.command_pool, &self.command_buffers);
+        }
         let cai = vk::CommandBufferAllocateInfo::default()
             .command_pool(self.command_pool)
             .level(vk::CommandBufferLevel::PRIMARY)
             .command_buffer_count(new_framebuffers.len() as u32);
-        let new_cmd_bufs = unsafe { self.device.allocate_command_buffers(&cai).expect("cmd_bufs") };
+        let new_cmd_bufs = unsafe {
+            self.device
+                .allocate_command_buffers(&cai)
+                .expect("cmd_bufs")
+        };
 
         // Reallocate instance buffer if grid size changed
         let new_grid_w = (new_extent.width / CHAR_W) as usize;
@@ -544,30 +853,61 @@ impl GraphicsRenderer {
                 .size(inst_sz)
                 .usage(vk::BufferUsageFlags::VERTEX_BUFFER)
                 .sharing_mode(vk::SharingMode::EXCLUSIVE);
-            self.instance_buffer = unsafe { self.device.create_buffer(&ibi, None) }.expect("inst buf");
+            self.instance_buffer =
-            let ireq = unsafe { self.device.get_buffer_memory_requirements(self.instance_buffer) };
+                unsafe { self.device.create_buffer(&ibi, None) }.expect("inst buf");
+            let ireq = unsafe {
+                self.device
+                    .get_buffer_memory_requirements(self.instance_buffer)
+            };
 
             let find_mem = |filter: u32, props: vk::MemoryPropertyFlags| -> u32 {
-                let mp = unsafe { self.instance.get_physical_device_memory_properties(self.physical_device) };
+                let mp = unsafe {
+                    self.instance
+                        .get_physical_device_memory_properties(self.physical_device)
+                };
                 for (i, mt) in mp.memory_types.iter().enumerate() {
-                    if (filter & (1 << i)) != 0 && mt.property_flags.contains(props) { return i as u32; }
+                    if (filter & (1 << i)) != 0 && mt.property_flags.contains(props) {
+                        return i as u32;
+                    }
                 }
                 0
             };
-            let imt = find_mem(ireq.memory_type_bits, vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT);
+            let imt = find_mem(
-            self.instance_memory = unsafe { self.device.allocate_memory(
+                ireq.memory_type_bits,
-                &vk::MemoryAllocateInfo::default().allocation_size(ireq.size).memory_type_index(imt), None)
+                vk::MemoryPropertyFlags::HOST_VISIBLE | vk::MemoryPropertyFlags::HOST_COHERENT,
-            }.expect("inst mem");
+            );
+            self.instance_memory = unsafe {
+                self.device.allocate_memory(
+                    &vk::MemoryAllocateInfo::default()
+                        .allocation_size(ireq.size)
+                        .memory_type_index(imt),
+                    None,
+                )
+            }
+            .expect("inst mem");
             self.instance_ptr = unsafe {
-                self.device.bind_buffer_memory(self.instance_buffer, self.instance_memory, 0).expect("bind");
+                self.device
-                let ptr = self.device.map_memory(self.instance_memory, 0, inst_sz, vk::MemoryMapFlags::default()).expect("map");
+                    .bind_buffer_memory(self.instance_buffer, self.instance_memory, 0)
+                    .expect("bind");
+                let ptr = self
+                    .device
+                    .map_memory(
+                        self.instance_memory,
+                        0,
+                        inst_sz,
+                        vk::MemoryMapFlags::default(),
+                    )
+                    .expect("map");
                 ptr as *mut ColorInstance
             };
             self.instance_count = new_count;
         }
 
         // Destroy old swapchain
-        unsafe { self.swapchain_loader.destroy_swapchain(self.swapchain, None); }
+        unsafe {
+            self.swapchain_loader
+                .destroy_swapchain(self.swapchain, None);
+        }
 
         self.swapchain = new_swapchain;
         self.swapchain_image_views = new_views;
@@ -583,13 +923,22 @@ impl Drop for GraphicsRenderer {
     fn drop(&mut self) {
         unsafe {
             let _ = self.device.device_wait_idle();
-            for &f in &self.in_flight { self.device.destroy_fence(f, None); }
+            for &f in &self.in_flight {
-            for &s in &self.image_available { self.device.destroy_semaphore(s, None); }
+                self.device.destroy_fence(f, None);
-            for &s in &self.render_finished { self.device.destroy_semaphore(s, None); }
+            }
+            for &s in &self.image_available {
+                self.device.destroy_semaphore(s, None);
+            }
+            for &s in &self.render_finished {
+                self.device.destroy_semaphore(s, None);
+            }
             self.device.destroy_command_pool(self.command_pool, None);
-            for &fb in &self.framebuffers { self.device.destroy_framebuffer(fb, None); }
+            for &fb in &self.framebuffers {
+                self.device.destroy_framebuffer(fb, None);
+            }
             self.device.destroy_pipeline(self.pipeline, None);
-            self.device.destroy_pipeline_layout(self.pipeline_layout, None);
+            self.device
+                .destroy_pipeline_layout(self.pipeline_layout, None);
             self.device.destroy_render_pass(self.render_pass, None);
             self.device.destroy_buffer(self.instance_buffer, None);
             self.device.free_memory(self.instance_memory, None);
@@ -597,8 +946,11 @@ impl Drop for GraphicsRenderer {
             self.device.free_memory(self.vertex_memory, None);
             self.device.destroy_buffer(self.index_buffer, None);
             self.device.free_memory(self.index_memory, None);
-            for &v in &self.swapchain_image_views { self.device.destroy_image_view(v, None); }
+            for &v in &self.swapchain_image_views {
-            self.swapchain_loader.destroy_swapchain(self.swapchain, None);
+                self.device.destroy_image_view(v, None);
+            }
+            self.swapchain_loader
+                .destroy_swapchain(self.swapchain, None);
             let sl = ash::khr::surface::Instance::new(&self.entry, &self.instance);
             sl.destroy_surface(self.surface, None);
             self.device.destroy_device(None);