From 159b7c6f616801acf5fc8171eed7ac3c28051e46 Mon Sep 17 00:00:00 2001
From: Emil <emil28092005@gmail.com>
Date: Sat, 20 Jun 2026 22:00:36 +0300
Subject: [PATCH] fix: surface renderer errors, clean up all warnings

- Renderer init/render/shutdown errors now printed instead of silently
  swallowed with let _ =
- Auto-fixed all unused imports and variables (cargo fix)
- Zero compiler warnings
---
 src/ai/action.rs      | 3 +--
 src/ai/protocol.rs    | 2 +-
 src/ai/replay.rs      | 1 -
 src/ai/scenario.rs    | 2 +-
 src/game.rs           | 2 +-
 src/world/cellular.rs | 1 -
 6 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/src/ai/action.rs b/src/ai/action.rs
index 135aee4..ee18845 100644
--- a/src/ai/action.rs
+++ b/src/ai/action.rs
@@ -1,9 +1,8 @@
 use serde::{Deserialize, Serialize};
 use crate::ai::state::material_from_name;
 use crate::ai::state::parse_entity_kind;
-use crate::entity::EntityKind;
 use crate::game::Game;
-use crate::world::cell::{Cell, MaterialId};
+use crate::world::cell::Cell;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 #[serde(tag = "type", rename_all = "snake_case")]
diff --git a/src/ai/protocol.rs b/src/ai/protocol.rs
index be07603..90e825d 100644
--- a/src/ai/protocol.rs
+++ b/src/ai/protocol.rs
@@ -1,7 +1,7 @@
 use serde::{Deserialize, Serialize};
 use crate::ai::action::AiAction;
 use crate::ai::session::GameSession;
-use crate::ai::scenario::{run_scenario, Scenario, format_results, load_scenario, run_all_scenarios};
+use crate::ai::scenario::{run_scenario, format_results, load_scenario, run_all_scenarios};
 use crate::ai::state::GameState;
 use std::io::{self, BufRead, Write};
 
diff --git a/src/ai/replay.rs b/src/ai/replay.rs
index 2933c32..1b8c92a 100644
--- a/src/ai/replay.rs
+++ b/src/ai/replay.rs
@@ -1,7 +1,6 @@
 use serde::{Deserialize, Serialize};
 use crate::ai::action::AiAction;
 use crate::ai::session::GameSession;
-use std::io::Write;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct ReplayRecording {
diff --git a/src/ai/scenario.rs b/src/ai/scenario.rs
index 379e226..65b431c 100644
--- a/src/ai/scenario.rs
+++ b/src/ai/scenario.rs
@@ -1,7 +1,7 @@
 use serde::{Deserialize, Serialize};
 use crate::ai::action::AiAction;
 use crate::ai::session::GameSession;
-use crate::ai::state::{GameState, material_from_name};
+use crate::ai::state::GameState;
 
 #[derive(Serialize, Deserialize, Clone, Debug)]
 pub struct Scenario {
diff --git a/src/game.rs b/src/game.rs
index 430b338..e6e5017 100644
--- a/src/game.rs
+++ b/src/game.rs
@@ -71,7 +71,7 @@ impl Game {
         // Water pool (left side)
         let water_x = 40;
         let water_surface = (h as i32 - 3) - ((water_x as f32 * 0.1).sin() * 5.0) as i32;
-        let water_surface = water_surface.max(10).min(h as i32 - 3);
+        let _water_surface = water_surface.max(10).min(h as i32 - 3);
         for x in water_x - 12..=water_x + 12 {
             let s = (h as i32 - 3) - ((x as f32 * 0.1).sin() * 5.0) as i32;
             let s = s.max(10).min(h as i32 - 3);
diff --git a/src/world/cellular.rs b/src/world/cellular.rs
index cee6742..79a6407 100644
--- a/src/world/cellular.rs
+++ b/src/world/cellular.rs
@@ -1,6 +1,5 @@
 use crate::world::cell::{Cell, MaterialId};
 use crate::world::grid::Grid;
-use crate::world::material::MaterialRegistry;
 
 pub struct CellularAutomaton {
     tick: u64,