55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
import { ExtensionType } from '../../../../extensions/Extensions.mjs';
|
|
|
|
"use strict";
|
|
const buildRectangle = {
|
|
extension: {
|
|
type: ExtensionType.ShapeBuilder,
|
|
name: "rectangle"
|
|
},
|
|
build(shape, points) {
|
|
const rectData = shape;
|
|
const x = rectData.x;
|
|
const y = rectData.y;
|
|
const width = rectData.width;
|
|
const height = rectData.height;
|
|
if (!(width >= 0 && height >= 0)) {
|
|
return points;
|
|
}
|
|
points[0] = x;
|
|
points[1] = y;
|
|
points[2] = x + width;
|
|
points[3] = y;
|
|
points[4] = x + width;
|
|
points[5] = y + height;
|
|
points[6] = x;
|
|
points[7] = y + height;
|
|
return points;
|
|
},
|
|
triangulate(points, vertices, verticesStride, verticesOffset, indices, indicesOffset) {
|
|
let count = 0;
|
|
verticesOffset *= verticesStride;
|
|
vertices[verticesOffset + count] = points[0];
|
|
vertices[verticesOffset + count + 1] = points[1];
|
|
count += verticesStride;
|
|
vertices[verticesOffset + count] = points[2];
|
|
vertices[verticesOffset + count + 1] = points[3];
|
|
count += verticesStride;
|
|
vertices[verticesOffset + count] = points[6];
|
|
vertices[verticesOffset + count + 1] = points[7];
|
|
count += verticesStride;
|
|
vertices[verticesOffset + count] = points[4];
|
|
vertices[verticesOffset + count + 1] = points[5];
|
|
count += verticesStride;
|
|
const verticesIndex = verticesOffset / verticesStride;
|
|
indices[indicesOffset++] = verticesIndex;
|
|
indices[indicesOffset++] = verticesIndex + 1;
|
|
indices[indicesOffset++] = verticesIndex + 2;
|
|
indices[indicesOffset++] = verticesIndex + 1;
|
|
indices[indicesOffset++] = verticesIndex + 3;
|
|
indices[indicesOffset++] = verticesIndex + 2;
|
|
}
|
|
};
|
|
|
|
export { buildRectangle };
|
|
//# sourceMappingURL=buildRectangle.mjs.map
|