| 1 | import { groupD8 } from '@pixi/math';
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| 2 |
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| 3 | class TextureUvs {
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| 4 | constructor() {
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| 5 | this.x0 = 0;
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| 6 | this.y0 = 0;
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| 7 | this.x1 = 1;
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| 8 | this.y1 = 0;
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| 9 | this.x2 = 1;
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| 10 | this.y2 = 1;
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| 11 | this.x3 = 0;
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| 12 | this.y3 = 1;
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| 13 | this.uvsFloat32 = new Float32Array(8);
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| 14 | }
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| 15 | set(frame, baseFrame, rotate) {
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| 16 | const tw = baseFrame.width;
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| 17 | const th = baseFrame.height;
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| 18 | if (rotate) {
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| 19 | const w2 = frame.width / 2 / tw;
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| 20 | const h2 = frame.height / 2 / th;
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| 21 | const cX = frame.x / tw + w2;
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| 22 | const cY = frame.y / th + h2;
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| 23 | rotate = groupD8.add(rotate, groupD8.NW);
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| 24 | this.x0 = cX + w2 * groupD8.uX(rotate);
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| 25 | this.y0 = cY + h2 * groupD8.uY(rotate);
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| 26 | rotate = groupD8.add(rotate, 2);
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| 27 | this.x1 = cX + w2 * groupD8.uX(rotate);
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| 28 | this.y1 = cY + h2 * groupD8.uY(rotate);
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| 29 | rotate = groupD8.add(rotate, 2);
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| 30 | this.x2 = cX + w2 * groupD8.uX(rotate);
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| 31 | this.y2 = cY + h2 * groupD8.uY(rotate);
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| 32 | rotate = groupD8.add(rotate, 2);
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| 33 | this.x3 = cX + w2 * groupD8.uX(rotate);
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| 34 | this.y3 = cY + h2 * groupD8.uY(rotate);
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| 35 | } else {
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| 36 | this.x0 = frame.x / tw;
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| 37 | this.y0 = frame.y / th;
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| 38 | this.x1 = (frame.x + frame.width) / tw;
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| 39 | this.y1 = frame.y / th;
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| 40 | this.x2 = (frame.x + frame.width) / tw;
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| 41 | this.y2 = (frame.y + frame.height) / th;
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| 42 | this.x3 = frame.x / tw;
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| 43 | this.y3 = (frame.y + frame.height) / th;
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| 44 | }
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| 45 | this.uvsFloat32[0] = this.x0;
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| 46 | this.uvsFloat32[1] = this.y0;
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| 47 | this.uvsFloat32[2] = this.x1;
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| 48 | this.uvsFloat32[3] = this.y1;
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| 49 | this.uvsFloat32[4] = this.x2;
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| 50 | this.uvsFloat32[5] = this.y2;
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| 51 | this.uvsFloat32[6] = this.x3;
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| 52 | this.uvsFloat32[7] = this.y3;
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| 53 | }
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| 54 | toString() {
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| 55 | return `[@pixi/core:TextureUvs x0=${this.x0} y0=${this.y0} x1=${this.x1} y1=${this.y1} x2=${this.x2} y2=${this.y2} x3=${this.x3} y3=${this.y3}]`;
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| 56 | }
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| 57 | }
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| 58 |
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| 59 | export { TextureUvs };
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| 60 |
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