Emil
357db17c2f
feat: GPU optimization — lighting, viewport CA, benchmark mode, 531 FPS
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- Resolution: 8x8 world cells, 2x2 UI cells (UI_SCALE=4)
- GPU lighting: vertex-shader computed, light source list buffer (max 64)
instead of O(N×R²) grid scan, O(N×S) per cell
- Viewport-aware CA: iterate only active chunks, not all 250×250
- Flat array entity/item/shadow maps instead of HashMaps
- Flat 128-entry ASCII atlas array instead of HashMap lookup
- Partial grid upload: viewport + 30-cell margin only
- Pre-allocated viewport arrays in renderer structs (zero alloc/frame)
- Skip CPU lighting for GPU modes (pass None)
- Benchmark mode: --mode benchmark with per-subsystem timing
- GpuLightSource struct, light_count in push constants
- gather_sources_in_range() for viewport-scoped source gathering
Benchmark (600 ticks, release):
Graphics: 531 FPS (was 386, +38%), render 1013us (was 1699us, -40%)
ASCII: 402 FPS (was 313, +28%), render 1502us (was 2346us, -36%)
All 171 tests + 14 scenarios pass.
2026-06-21 16:09:45 +03:00
Emil
020914ab99
refactor: --mode window is now Vulkan, remove softbuffer fallback
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- --mode window = Vulkan renderer (was softbuffer CPU)
- --mode vulkan removed (merged into --mode window)
- softbuffer dependency removed
- log dependency removed (unused)
- Old window.rs (softbuffer CPU renderer) deleted
- Fallback: if Vulkan init fails, falls back to --mode terminal
- 109 tests, 0 failures
2026-06-21 00:53:20 +03:00
Emil
6e9e90fb34
feat: Vulkan renderer with instanced rendering (Phase 4)
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VulkanRenderer using ash 0.38 + winit:
- Instance with KHR_surface + xlib + wayland extensions
- Physical device selection (first GPU with graphics+present)
- Swapchain (FIFO present mode, B8G8R8A8_UNORM)
- Render pass with color attachment
- Graphics pipeline with instanced rendering:
- Vertex buffer: unit quad (4 verts, 6 indices)
- Instance buffer: 8000 CellInstance structs (32 bytes each)
- 2 vertex bindings: per-vertex (quad pos) + per-instance (grid pos,
atlas UV, fg/bg colors)
- Push constants: screen size + cell size
- Glyph atlas: R8_UNORM texture, uploaded via staging buffer
- fontdue rasterizes DejaVu Sans Mono at startup
- Linear filtering sampler
- Descriptor set: combined image sampler for atlas
- 2 frames in flight with semaphores + fences
- Persistent mapped instance buffer (zero-copy per frame)
Shaders (pre-compiled SPIR-V):
- cell.vert: positions quad from instance data, maps to clip space
- cell.frag: samples atlas alpha, blends fg/bg
--mode vulkan: tries Vulkan, falls back to softbuffer window mode
109 tests, 0 failures
2026-06-21 00:34:01 +03:00
Emil
390eca9cda
fix: winit + softbuffer for layout-agnostic input and better FPS
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Replaced minifb with winit + softbuffer:
Input (layout-agnostic):
- winit uses PhysicalKey<KeyCode> which maps to physical key positions
- KeyCode::KeyA = physical A key, regardless of keyboard layout
- Works on Russian, Arabic, any layout — no key mapping needed
- HashSet<KeyCode> tracks pressed/released state
- Proper Press/Release events from OS, no timeout hacks
FPS improvements:
- Glyph atlas pre-built at startup (alpha bitmap, zero per-frame alloc)
- render_to_buffer: skip empty cells entirely (no draw call)
- blend_fast: bitshift instead of division for alpha blending
- Buffer fill via .fill() instead of nested loop
- copy_from_slice for pixel transfer to softbuffer (memcpy speed)
- ControlFlow::Poll for maximum frame rate
109 tests, 0 failures
2026-06-21 00:11:12 +03:00
Emil
19bd883645
feat: window mode with minifb — direct keyboard polling, no terminal
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New --mode window (now default):
- minifb creates a real OS window (no terminal needed)
- fontdue rasterizes DejaVu Sans Mono glyphs to pixel buffer
- ASCII characters rendered as colored pixels — same aesthetic
- Keyboard polled via get_pressed_keys() every frame:
- Instant response, no terminal delay
- Proper multi-key support (W+A strafing works)
- No Release event hacks needed
- No key repeat timeout hacks
- Instant stop when key released
Controls: WASD/arrows, 1-9/0 paint, X erase, HJKL camera, Q/Esc quit
--mode terminal still available as fallback
109 tests, 0 warnings, 0 failures
2026-06-20 23:58:05 +03:00
Emil
7f4b1dde5e
feat: AI integration - pipe protocol, test framework, replay system
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AI Session API (src/ai/session.rs):
- GameSession wraps Game with seeded determinism
- init/init_empty, step(n), perform_action, get_state
- get_cell, get_region, get_entities, get_player, count_material
JSON Pipe Protocol (src/ai/protocol.rs):
- --mode pipe: stdin/stdout JSON line protocol
- Commands: init, step, action, get_state, get_view, get_cell,
get_region, get_entities, get_player, count_material, find_material,
record_start/stop, replay_save, run_scenario, quit
Test Framework:
- 27 Rust integration tests (tests/*.rs) covering sand, water, lava,
acid, fire physics + entity movement, damage, ragdoll
- 8 JSON scenarios (scenarios/*.json) runnable via --mode test
- Scenario assertions: cell_is, cell_is_not, no_material_in_region,
material_count_in_region, entity_alive/dead, player_on_ground, etc.
Replay System (src/ai/replay.rs):
- Record all actions + seed for deterministic playback
- ReplayPlayer::play() and play_until_tick() for debugging
- --mode replay --replay-file PATH
Other changes:
- src/lib.rs: library target for integration tests
- Collision: post-constraint collision pass to reduce tunneling
- serde + serde_json dependencies
- All enums use rename_all = snake_case for JSON compatibility
2026-06-20 18:53:21 +03:00
Emil
68f6292c4d
feat: Verbatim MVP - terminal renderer, cellular automaton, Verlet physics
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- World: 250x250 grid with 14 materials (sand, water, lava, stone, wood, etc.)
- Physics: cellular automaton for materials + Verlet solver for entities
- Entity: multi-cell humanoid (7 sub-bodies with distance constraints)
- Render: terminal renderer with ANSI colors and diff-based updates
- Game loop: fixed 60Hz timestep with accumulator pattern
- Input: WASD movement, number keys for material painting
2026-06-20 18:21:26 +03:00
Emil