31 lines
662 B
JavaScript
31 lines
662 B
JavaScript
export class Tilemap {
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constructor(width, height) {
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this.width = width;
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this.height = height;
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this.tiles = new Uint8Array(width * height);
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this.default = 0;
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}
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tileIndex(x, y) {
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return x + y * this.width;
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}
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inBounds(x, y) {
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return x >= 0 && y >= 0 && x < this.width && y < this.height;
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}
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at(x, y) {
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if (this.inBounds(x, y)) {
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return this.tiles[this.tileIndex(x, y)];
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} else {
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return this.default;
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}
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}
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setAt(x, y, tile) {
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if (this.inBounds(x, y)) {
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this.tiles[this.tileIndex(x, y)] = tile;
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}
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}
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}
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