Getting shaders working with lua.

src/duskrpg/map/mapchunk.c

@@ -0,0 +1,26 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "mapchunk.h"
+
+uint32_t mapChunkGetTileindex(const chunkpos_t position) {
+  return (
+    (position.z * CHUNK_WIDTH * CHUNK_HEIGHT) +
+    (position.y * CHUNK_WIDTH) +
+    position.x
+  );
+}
+
+bool_t mapChunkPositionIsEqual(const chunkpos_t a, const chunkpos_t b) {
+  return (a.x == b.x) && (a.y == b.y) && (a.z == b.z);
+}
+
+void mapChunkRender(const mapchunk_t *chunk) {
+  for(uint8_t i = 0; i < chunk->meshCount; i++) {
+    meshDraw(&chunk->meshes[i], 0, -1);
+  }
+}