56 lines
1.2 KiB
TypeScript
56 lines
1.2 KiB
TypeScript
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export class Buffer {
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buffer: WebGLBuffer;
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data: any;
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count: number;
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type: number;
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constructor(gl: WebGLRenderingContext, data: number[], type: number) {
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this.buffer = gl.createBuffer();
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this.type = type;
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if (data)
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this.updateData(gl, data);
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}
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_toArray(data: number[]): any {
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return new Float32Array(data);
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}
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updateData(gl: WebGLRenderingContext, data: number[]) {
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this.data = data;
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this.count = data.length;
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gl.bindBuffer(this.type, this.buffer);
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gl.bufferData(this.type, this._toArray(data), gl.STATIC_DRAW);
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}
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bind(gl: WebGLRenderingContext) {
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gl.bindBuffer(this.type, this.buffer);
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}
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getCount(): number {
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return this.count;
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}
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}
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export class VertexBuffer extends Buffer {
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constructor(gl: WebGLRenderingContext, data: any) {
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super(gl, data, gl.ARRAY_BUFFER);
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}
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_toArray(data: number[]): any {
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return new Float32Array(data);
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}
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}
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export class IndexBuffer extends Buffer {
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constructor(gl: WebGLRenderingContext, data: any) {
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super(gl, data, gl.ELEMENT_ARRAY_BUFFER);
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}
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_toArray(data: number[]): any {
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return new Uint16Array(data);
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}
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}
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