Couple world pos fixes/improvements.

src/rpg/world/chunk.h

@@ -9,11 +9,6 @@
 #include "rpg/world/tile.h"
 #include "worldpos.h"
 
-#define CHUNK_WIDTH 4
-#define CHUNK_HEIGHT 4
-#define CHUNK_DEPTH 32
-#define CHUNK_TILE_COUNT (CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_DEPTH)
-
 typedef struct chunk_s {
   chunkpos_t position;
   tile_t tiles[CHUNK_TILE_COUNT];

src/rpg/world/map.h

@@ -8,11 +8,6 @@
 #pragma once
 #include "rpg/world/chunk.h"
 
-#define MAP_CHUNK_WIDTH 3
-#define MAP_CHUNK_HEIGHT 3
-#define MAP_CHUNK_DEPTH 1
-#define MAP_CHUNK_COUNT (MAP_CHUNK_WIDTH * MAP_CHUNK_HEIGHT * MAP_CHUNK_DEPTH)
-
 typedef struct map_s {
   chunk_t chunks[MAP_CHUNK_COUNT];
   chunk_t *chunkOrder[MAP_CHUNK_COUNT];

src/rpg/world/tile.h

@@ -8,8 +8,6 @@
 #pragma once
 #include "dusk.h"
 
-#pragma pack(push, 1)
 typedef struct tile_s {
   uint8_t id;
 } tile_t;
-#pragma pack(pop)

src/rpg/world/worldpos.c

@@ -0,0 +1,14 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "worldpos.h"
+
+void chunkPosToWorldPos(const chunkpos_t* chunkPos, worldpos_t* out) {
+  out->x = (worldunit_t)(chunkPos->x * CHUNK_WIDTH);
+  out->y = (worldunit_t)(chunkPos->y * CHUNK_HEIGHT);
+  out->z = (worldunit_t)(chunkPos->z * CHUNK_DEPTH);
+}

src/rpg/world/worldpos.h

@@ -8,9 +8,19 @@
 #pragma once
 #include "dusk.h"
 
+#define CHUNK_WIDTH 4
+#define CHUNK_HEIGHT 4
+#define CHUNK_DEPTH 32
+#define CHUNK_TILE_COUNT (CHUNK_WIDTH * CHUNK_HEIGHT * CHUNK_DEPTH)
+
+#define MAP_CHUNK_WIDTH 3
+#define MAP_CHUNK_HEIGHT 3
+#define MAP_CHUNK_DEPTH 1
+#define MAP_CHUNK_COUNT (MAP_CHUNK_WIDTH * MAP_CHUNK_HEIGHT * MAP_CHUNK_DEPTH)
+
 typedef int32_t worldunit_t;
 typedef int16_t chunkunit_t;
-typedef int32_t chunkindex_t;
+typedef int8_t chunkindex_t;
 
 typedef int32_t worldunits_t;
 typedef int32_t chunkunits_t;
@@ -22,3 +32,11 @@ typedef struct worldpos_s {
 typedef struct chunkpos_t {
   chunkunit_t x, y, z;
 } chunkpos_t;
+
+/**
+ * Converts a world position to a chunk position.
+ * 
+ * @param worldPos The world position.
+ * @param out The output chunk position.
+ */
+void chunkPosToWorldPos(const chunkpos_t* chunkPos, worldpos_t* out);