@pixi/core/lib/textures/TextureUvs.mjs

Core PixiJS

import { groupD8 } from '@pixi/math';

class TextureUvs {
  constructor() {
    this.x0 = 0;
    this.y0 = 0;
    this.x1 = 1;
    this.y1 = 0;
    this.x2 = 1;
    this.y2 = 1;
    this.x3 = 0;
    this.y3 = 1;
    this.uvsFloat32 = new Float32Array(8);
  }
  set(frame, baseFrame, rotate) {
    const tw = baseFrame.width;
    const th = baseFrame.height;
    if (rotate) {
      const w2 = frame.width / 2 / tw;
      const h2 = frame.height / 2 / th;
      const cX = frame.x / tw + w2;
      const cY = frame.y / th + h2;
      rotate = groupD8.add(rotate, groupD8.NW);
      this.x0 = cX + w2 * groupD8.uX(rotate);
      this.y0 = cY + h2 * groupD8.uY(rotate);
      rotate = groupD8.add(rotate, 2);
      this.x1 = cX + w2 * groupD8.uX(rotate);
      this.y1 = cY + h2 * groupD8.uY(rotate);
      rotate = groupD8.add(rotate, 2);
      this.x2 = cX + w2 * groupD8.uX(rotate);
      this.y2 = cY + h2 * groupD8.uY(rotate);
      rotate = groupD8.add(rotate, 2);
      this.x3 = cX + w2 * groupD8.uX(rotate);
      this.y3 = cY + h2 * groupD8.uY(rotate);
    } else {
      this.x0 = frame.x / tw;
      this.y0 = frame.y / th;
      this.x1 = (frame.x + frame.width) / tw;
      this.y1 = frame.y / th;
      this.x2 = (frame.x + frame.width) / tw;
      this.y2 = (frame.y + frame.height) / th;
      this.x3 = frame.x / tw;
      this.y3 = (frame.y + frame.height) / th;
    }
    this.uvsFloat32[0] = this.x0;
    this.uvsFloat32[1] = this.y0;
    this.uvsFloat32[2] = this.x1;
    this.uvsFloat32[3] = this.y1;
    this.uvsFloat32[4] = this.x2;
    this.uvsFloat32[5] = this.y2;
    this.uvsFloat32[6] = this.x3;
    this.uvsFloat32[7] = this.y3;
  }
  toString() {
    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}]`;
  }
}

export { TextureUvs };
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