43 lines
1006 B
TypeScript
43 lines
1006 B
TypeScript
export class Mask {
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mask: boolean[][] = [];
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constructor(width: number, height: number) {
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for (let x = 0; x < width; x++) {
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this.mask.push(Array(height).fill(false));
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}
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}
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static from_string(mask_string: string): Mask {
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// mask_string: '\n+++\n+++\n'
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const rows = mask_string.trim().split('\n');
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// rows: ['+++', '+++']
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const mask = new Mask(rows[0].length, rows.length);
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for (let y = 0; y < rows.length; y++) {
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const row = rows[y];
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for (let x = 0; x < row.length; x++) {
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const cell = row[x].toLowerCase();
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if (cell == '+' || cell == 'x') {
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mask.set(x, y, true);
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}
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}
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}
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return mask;
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}
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set(x: number, y: number, val: boolean) {
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this.mask[x][y] = val;
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}
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update(x: number, y: number, src: Mask) {
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for (let xi = 0; xi < src.mask.length; xi++) {
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const col = src.mask[xi];
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for (let yi = 0; yi < col.length; yi++) {
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this.set(x + xi, y + yi, col[yi]);
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}
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}
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}
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}
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