Separate engine and game

game/world/layer.c

@@ -0,0 +1 @@
+#include "layer.h"

game/world/layer.h

@@ -0,0 +1,4 @@
+#ifndef PIXELDEFENSE_LAYER_H
+#define PIXELDEFENSE_LAYER_H
+
+#endif //PIXELDEFENSE_LAYER_H

game/world/map.c

@@ -0,0 +1 @@
+#include "map.h"

game/world/map.h

@@ -0,0 +1,4 @@
+#ifndef PIXELDEFENSE_MAP_H
+#define PIXELDEFENSE_MAP_H
+
+#endif //PIXELDEFENSE_MAP_H

game/world/tileset.c

@@ -0,0 +1,52 @@
+#include <assert.h>
+#include <stdio.h>
+
+#include "tileset.h"
+
+Tileset TILESET_INVALID = {.isValid = false};
+
+Tileset tilesetCreate(const TilesetDesc *desc) {
+    Tileset tileset = {};
+    cute_tiled_tileset_t *source = desc->source;
+
+    char pathBuffer[256];
+    // auto terminates
+    snprintf(pathBuffer, sizeof(pathBuffer), "%s%s%s",
+             desc->assetDir ? desc->assetDir : "",
+             desc->assetDir ? "/" : "",
+             source->image.ptr);
+
+    tileset.tiles = LoadTexture(pathBuffer);
+    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;
+
+    if (tileset.tiles.width != source->imagewidth ||
+        tileset.tiles.height != source->imageheight) {
+        tilesetDestroy(&tileset);
+        return TILESET_INVALID;
+    }
+
+    tileset.isValid = true;
+    return tileset;
+}
+
+Rectangle tilesetGetTileRegion(Tileset *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 tilesetDestroy(Tileset *tileset) {
+    UnloadTexture(tileset->tiles);
+    *tileset = TILESET_INVALID;
+}
+

game/world/tileset.h

@@ -0,0 +1,36 @@
+#ifndef PIXELDEFENSE_TILESET_H
+#define PIXELDEFENSE_TILESET_H
+
+#include <raylib.h>
+#include <cute_tiled.h>
+
+#include "../common.h"
+
+typedef struct TilesetDesc {
+    cute_tiled_tileset_t *source;
+    const char *assetDir;
+} TilesetDesc;
+
+typedef struct Tileset {
+    Texture2D tiles;
+    int startID;
+    int tileWidth;
+    int tileHeight;
+    int width;
+    int height;
+    int offsetX;
+    int offsetY;
+    bool isValid;
+} Tileset;
+
+extern Tileset TILESET_INVALID;
+
+Tileset tilesetCreate(const TilesetDesc *desc);
+
+Rectangle tilesetGetTileRegion(Tileset *tileset, int tileID);
+
+void tilesetDestroy(Tileset *tileset);
+
+
+
+#endif //PIXELDEFENSE_TILESET_H