pixi.js/lib/scene/particle-container/shared/particleData.mjs

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"use strict";
const particleData = {
  vertex: {
    attributeName: "aVertex",
    format: "float32x2",
    code: `
            const texture = p.texture;
            const sx = p.scaleX;
            const sy = p.scaleY;
            const ax = p.anchorX;
            const ay = p.anchorY;
            const trim = texture.trim;
            const orig = texture.orig;

            if (trim)
            {
                w1 = trim.x - (ax * orig.width);
                w0 = w1 + trim.width;

                h1 = trim.y - (ay * orig.height);
                h0 = h1 + trim.height;
            }
            else
            {
                w1 = -ax * (orig.width);
                w0 = w1 + orig.width;

                h1 = -ay * (orig.height);
                h0 = h1 + orig.height;
            }

            f32v[offset] = w1 * sx;
            f32v[offset + 1] = h1 * sy;

            f32v[offset + stride] = w0 * sx;
            f32v[offset + stride + 1] = h1 * sy;

            f32v[offset + (stride * 2)] = w0 * sx;
            f32v[offset + (stride * 2) + 1] = h0 * sy;

            f32v[offset + (stride * 3)] = w1 * sx;
            f32v[offset + (stride * 3) + 1] = h0 * sy;
        `,
    dynamic: false
  },
  // positionData
  position: {
    attributeName: "aPosition",
    format: "float32x2",
    code: `
            var x = p.x;
            var y = p.y;

            f32v[offset] = x;
            f32v[offset + 1] = y;

            f32v[offset + stride] = x;
            f32v[offset + stride + 1] = y;

            f32v[offset + (stride * 2)] = x;
            f32v[offset + (stride * 2) + 1] = y;

            f32v[offset + (stride * 3)] = x;
            f32v[offset + (stride * 3) + 1] = y;
        `,
    dynamic: true
  },
  // rotationData
  rotation: {
    attributeName: "aRotation",
    format: "float32",
    code: `
            var rotation = p.rotation;

            f32v[offset] = rotation;
            f32v[offset + stride] = rotation;
            f32v[offset + (stride * 2)] = rotation;
            f32v[offset + (stride * 3)] = rotation;
        `,
    dynamic: false
  },
  // uvsData
  uvs: {
    attributeName: "aUV",
    format: "float32x2",
    code: `
            var uvs = p.texture.uvs;

            f32v[offset] = uvs.x0;
            f32v[offset + 1] = uvs.y0;

            f32v[offset + stride] = uvs.x1;
            f32v[offset + stride + 1] = uvs.y1;

            f32v[offset + (stride * 2)] = uvs.x2;
            f32v[offset + (stride * 2) + 1] = uvs.y2;

            f32v[offset + (stride * 3)] = uvs.x3;
            f32v[offset + (stride * 3) + 1] = uvs.y3;
        `,
    dynamic: false
  },
  // tintData
  color: {
    attributeName: "aColor",
    format: "unorm8x4",
    code: `
            const c = p.color;

            u32v[offset] = c;
            u32v[offset + stride] = c;
            u32v[offset + (stride * 2)] = c;
            u32v[offset + (stride * 3)] = c;
        `,
    dynamic: false
  }
};

export { particleData };
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