@pixi/core
Version:
Core PixiJS
47 lines (46 loc) • 1.83 kB
JavaScript
import { Buffer } from "../geometry/Buffer.mjs";
import { Geometry } from "../geometry/Geometry.mjs";
class QuadUv extends Geometry {
constructor() {
super(), this.vertices = new Float32Array([
-1,
-1,
1,
-1,
1,
1,
-1,
1
]), this.uvs = new Float32Array([
0,
0,
1,
0,
1,
1,
0,
1
]), this.vertexBuffer = new Buffer(this.vertices), this.uvBuffer = new Buffer(this.uvs), this.addAttribute("aVertexPosition", this.vertexBuffer).addAttribute("aTextureCoord", this.uvBuffer).addIndex([0, 1, 2, 0, 2, 3]);
}
/**
* Maps two Rectangle to the quad.
* @param targetTextureFrame - The first rectangle
* @param destinationFrame - The second rectangle
* @returns - Returns itself.
*/
map(targetTextureFrame, destinationFrame) {
let x = 0, y = 0;
return this.uvs[0] = x, this.uvs[1] = y, this.uvs[2] = x + destinationFrame.width / targetTextureFrame.width, this.uvs[3] = y, this.uvs[4] = x + destinationFrame.width / targetTextureFrame.width, this.uvs[5] = y + destinationFrame.height / targetTextureFrame.height, this.uvs[6] = x, this.uvs[7] = y + destinationFrame.height / targetTextureFrame.height, x = destinationFrame.x, y = destinationFrame.y, this.vertices[0] = x, this.vertices[1] = y, this.vertices[2] = x + destinationFrame.width, this.vertices[3] = y, this.vertices[4] = x + destinationFrame.width, this.vertices[5] = y + destinationFrame.height, this.vertices[6] = x, this.vertices[7] = y + destinationFrame.height, this.invalidate(), this;
}
/**
* Legacy upload method, just marks buffers dirty.
* @returns - Returns itself.
*/
invalidate() {
return this.vertexBuffer._updateID++, this.uvBuffer._updateID++, this;
}
}
export {
QuadUv
};
//# sourceMappingURL=QuadUv.mjs.map