30 lines
No EOL
880 B
JavaScript
30 lines
No EOL
880 B
JavaScript
function Tileset() {
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this.image = new Image();
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this.image.parent = this;
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this.loaded = false;
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}
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Tileset.prototype.setTileset = function(tileset) {
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this.tileset = tileset;
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this.loaded = false;
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this.image.src = "assets/tilesets/" + tileset;
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this.image.addEventListener("load", function() {
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this.parent.loaded = true;
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}, false);
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}
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Tileset.prototype.getTileset = function() {
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return this.tileset;
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}
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Tileset.prototype.tileIDToTilesetPos = function(tileID) {
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var px = tileID % Math.floor(this.image.width / tileEngine.tileSize) * tileEngine.tileSize;
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var py = Math.floor(tileID / Math.floor(this.image.width / tileEngine.tileSize)) * tileEngine.tileSize;
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return [px, py];
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}
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Tileset.prototype.tilesetPosToTileID = function(x, y) {
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return (Math.floor(x / tileEngine.tileSize)) + (Math.floor(y / tileEngine.tileSize) * (this.image.width / tileEngine.tileSize));
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} |