I may have used ai for some of the proc gen..

game/world.odin

@@ -13,15 +13,16 @@ WORLD_DATA_PATH :: "data/worlds"
 World :: struct {
     data_dir: string,
     chunks: map[Vec2i]Chunk,
-    seed: u32
+    seed: i64
 }
 
 Chunk :: struct #packed {
     position: Vec2i,
     tiles: [CHUNK_SIZE][CHUNK_SIZE]Tile,
+    biome_id:u32,
 }
 
-create_world :: proc(name:string, seed:u32) -> World {
+create_world :: proc(name:string, seed:i64) -> World {
     data_dir := fmt.tprintf("%v/%v", WORLD_DATA_PATH, name)
     if !os.is_dir(data_dir) {
         fmt.printfln("Data dir: %v does not exist", data_dir)
@@ -40,7 +41,7 @@ create_world :: proc(name:string, seed:u32) -> World {
     }
 }
 
-load_world :: proc(name:string, seed:u32) -> World {
+load_world :: proc(name:string, seed:i64) -> World {
     dir := fmt.tprintf("%v/%v", WORLD_DATA_PATH, name)
     if !os.is_dir(dir) {
         panic("Couldnt load world")
@@ -89,6 +90,9 @@ save_chunk :: proc(c:^Chunk, w:^World) {
         }
     }
 
+    // Biome ID
+    for byte in transmute([size_of(u32)]u8)c.biome_id {append(&data, byte)}
+
     err := os.write_entire_file_or_err(filename, data[:])
     
 }
@@ -138,6 +142,10 @@ load_chunk :: proc(pos:Vec2i, w:^World) -> Chunk {
         }
     }
 
+    // Load Biome ID
+    mem.copy(transmute([^]u8)&chunk.biome_id, &data[offset], size_of(u32))
+    offset += size_of(u32)
+
     return chunk
 
 }
@@ -150,42 +158,6 @@ unload_chunk :: proc(pos:Vec2i, w:^World) {
     } 
 }
 
-generate_chunk :: proc(pos:Vec2i, seed:u32) -> Chunk {
-    chunk := Chunk {position = pos}
-
-    for x in 0..<CHUNK_SIZE {
-        for y in 0..<CHUNK_SIZE {
-            world_x := pos.x * CHUNK_SIZE + x
-            world_y := pos.y * CHUNK_SIZE + y
-
-            chunk.tiles[x][y] = generate_tile(world_x, world_y, seed)
-        }
-    }
-
-    return chunk
-}
-
-generate_tile :: proc(x, y: int, seed: u32) -> Tile {
-    base_noise := hash_noise(x, y, seed)
-    cluster_noise := hash_noise(x / 3, y / 3, seed + 12345) // Larger scale noise for clusters
-
-    if base_noise < 0.70 {
-        return nothing_tile
-    } else if base_noise < 0.85 {
-        return grass_tile
-    } else if base_noise < 0.95 {
-        if cluster_noise > 0.5 { // Favor trees in cluster regions
-            return tree_tile
-        }
-        return grass_tile
-    } else {
-        if cluster_noise > 0.4 { // Only allow ponds in certain areas
-            return water_tile
-        }
-        return nothing_tile
-    }
-}
-
 
 get_chunk :: proc(w:^World, chunk_pos:Vec2i) -> ^Chunk {
     chunk, exists := w.chunks[chunk_pos]