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