54 lines
1.6 KiB
TypeScript
54 lines
1.6 KiB
TypeScript
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class Mesh extends Component {
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private _verts: VertexPosition[];
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private _primitiveCount: number;
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private _triangles: number[];
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private _topLeftVertPosition: Vector2;
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private _width;
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private _height;
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public initialize() {
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}
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public setVertPosition(positions: Vector2[]){
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let createVerts = !this._verts || this._verts.length != positions.length;
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if (createVerts)
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this._verts = new Array(positions.length);
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for (let i = 0; i < this._verts.length; i ++){
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this._verts[i] = new VertexPosition(positions[i]);
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}
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return this;
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}
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public setTriangles(triangles: number[]){
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this._primitiveCount = triangles.length / 3;
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this._triangles = triangles;
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return this;
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}
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public recalculateBounds(){
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this._topLeftVertPosition = new Vector2(Number.MAX_VALUE, Number.MAX_VALUE);
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let max = new Vector2(Number.MIN_VALUE, Number.MIN_VALUE);
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for (let i = 0; i < this._verts.length; i ++){
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this._topLeftVertPosition.x = Math.min(this._topLeftVertPosition.x, this._verts[i].position.x);
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this._topLeftVertPosition.y = Math.min(this._topLeftVertPosition.y, this._verts[i].position.y);
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max.x = Math.max(max.x, this._verts[i].position.x);
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max.y = Math.max(max.y, this._verts[i].position.y);
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}
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this._width = max.x - this._topLeftVertPosition.x;
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this._height = max.y - this._topLeftVertPosition.y;
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return this;
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}
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}
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class VertexPosition{
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public position: Vector2;
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constructor(position: Vector2){
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this.position = position;
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}
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}
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