Move world files to engine

engine/breeze/world/tileset.c

@@ -0,0 +1,49 @@
+#include <assert.h>
+#include <stdio.h>
+
+#include <cute_tiled.h>
+
+#include "tileset.h"
+
+BzTileset BZ_TILESET_INVALID = {.isValid = false};
+
+BzTileset bzTilesetCreate(const BzTilesetDesc *desc) {
+    BzTileset tileset = {};
+    cute_tiled_tileset_t *source = cute_tiled_load_external_tileset(desc->path, NULL);
+
+    tileset.tiles = LoadTexture(desc->texturePath);
+    tileset.startID = source->firstgid;
+    tileset.tileWidth = source->tilewidth;
+    tileset.tileHeight = source->tileheight;
+
+    tileset.offsetX = source->tileoffset_x;
+    tileset.offsetY = source->tileoffset_y;
+
+    tileset.width = tileset.tiles.width / tileset.tileWidth;
+    tileset.height = tileset.tiles.height / tileset.tileHeight;
+
+    cute_tiled_free_external_tileset(source);
+
+    if (tileset.tiles.width != source->imagewidth ||
+        tileset.tiles.height != source->imageheight) {
+        bzTilesetDestroy(&tileset);
+        return BZ_TILESET_INVALID;
+    }
+
+    tileset.isValid = true;
+    return tileset;
+}
+
+Rectangle bzTilesetGetTileRegion(BzTileset *tileset, int tileID) {
+    tileID = tileID - tileset->startID;
+    int posX = tileID % tileset->width;
+    int posY = tileID / tileset->width;
+    return (Rectangle) {posX * tileset->tileWidth, posY * tileset->tileHeight,
+                        tileset->tileWidth, tileset->tileHeight};
+}
+
+void bzTilesetDestroy(BzTileset *tileset) {
+    UnloadTexture(tileset->tiles);
+    *tileset = BZ_TILESET_INVALID;
+}
+