50 lines
1.5 KiB
TypeScript
50 lines
1.5 KiB
TypeScript
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import {
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CSG,
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Mesh,
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MeshBuilder,
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PhotoDome,
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Vector3,
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} from '@babylonjs/core/Legacy/legacy';
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export function adjust(f: (... csgs: CSG[]) => CSG, ... ms: Mesh[]): Mesh {
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const csgs = ms.map(m => CSG.FromMesh(m));
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const c = f(... csgs);
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if (ms.length > 0) {
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ms.forEach(m => m.dispose());
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const scene = ms[0].getScene();
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const ans = c.toMesh(ms[0].name, null, scene, true);
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ans.material = ms[0].material;
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return ans;
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} else {
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return c.toMesh("adjusted");
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}
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}
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export const subtractMany = (a: CSG, ... bs: CSG[]) => bs.reduce((a, b) => a.subtract(b), a);
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export class PhotoSemiDome extends PhotoDome {
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readonly _size: number;
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constructor(... args: ConstructorParameters<typeof PhotoDome>) {
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super(... args);
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this._size = args[2].size!;
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this._chopMesh();
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}
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_chopMesh() {
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const d = this._size;
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this._mesh.getChildMeshes()[0].dispose(); // remove the covering half-sphere
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this._mesh = adjust(subtractMany,
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this._mesh,
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box(this._mesh.name + "_chop", d, d, d, 0, 0, -d/2));
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this._mesh.parent = this;
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}
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}
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export function box(name: string, width: number, height: number, depth: number, x?: number, y?: number, z?: number): Mesh {
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const b = MeshBuilder.CreateBox(name, {});
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b.scaling = new Vector3(width, height, depth);
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b.position = new Vector3(x ?? 0, y ?? b.scaling.y/2, z ?? 0);
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return b;
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}
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