Files
PixelDefense/engine/breeze/world/tileset.c

50 lines
1.4 KiB
C

#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;
}