Separate out Chunks-related code, "fix" collisions to be less broken

src/Game.zig

@@ -10,6 +10,7 @@ const worldgen = @import("worldgen.zig");
 
 const Blocks = @import("assets/Blocks.zig");
 const Chunk = @import("assets/Chunk.zig");
+const Chunks = @import("Chunks.zig");
 const CommandBuffer = @import("engine/CommandBuffer.zig");
 const Engine = @import("engine/Engine.zig");
 const Iterator2 = math.Iterator2;
@@ -50,7 +51,7 @@ deferred_command_buffers: std.ArrayList(CommandBuffer),
 blocks: Blocks,
 materials: Materials,
 textures: Textures,
-chunks: std.AutoHashMapUnmanaged([3]i16, Chunk),
+chunks: Chunks,
 skybox: Skybox,
 
 player: Player,
@@ -659,7 +660,7 @@ pub fn init(allocator: std.mem.Allocator, engine: *Engine, swapchain: *Swapchain
         .blocks = blocks,
         .materials = materials,
         .textures = textures,
-        .chunks = chunks,
+        .chunks = .{ .chunks = chunks },
         .skybox = skybox,
 
         .player = .init(player_position_sv, 0, 0),
@@ -677,11 +678,7 @@ pub fn deinit(self: *Game) void {
     self.vertex_buffer.deinit(self.engine);
     self.index_buffer.deinit(self.engine);
 
-    var it = self.chunks.valueIterator();
-    while (it.next()) |chunk| {
-        chunk.deinit(self.engine, self.descriptor_pool);
-    }
-    self.chunks.deinit(self.allocator);
+    self.chunks.deinit(self.engine, self.descriptor_pool, self.allocator);
     self.skybox.deinit(self.engine);
 
     self.global_uniforms.deinit(self.engine);
@@ -889,7 +886,7 @@ fn render(self: *Game) !void {
         command_buffer.bindIndexBuffer(self.index_buffer.buffer, 0, .uint16);
         command_buffer.bindDescriptorSet(.graphics, self.pipeline_layout, 0, self.global_descriptor_set, null);
 
-        var it = self.chunks.valueIterator();
+        var it = self.chunks.chunks.valueIterator();
         while (it.next()) |chunk| {
             chunk.draw(self.pipeline_layout, command_buffer);
         }