laya-coreui-es
Version:
laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改
51 lines (50 loc) • 1.57 kB
JavaScript
import { Mesh2D } from "./Mesh2D";
import { LayaGL } from "../../layagl/LayaGL";
export class MeshParticle2D extends Mesh2D {
static __init__() {
var gl = LayaGL.instance;
MeshParticle2D._fixattriInfo = [gl.FLOAT, 4, 0,
gl.FLOAT, 3, 16,
gl.FLOAT, 3, 28,
gl.FLOAT, 4, 40,
gl.FLOAT, 4, 56,
gl.FLOAT, 3, 72,
gl.FLOAT, 2, 84,
gl.FLOAT, 4, 92,
gl.FLOAT, 1, 108,
gl.FLOAT, 1, 112];
}
constructor(maxNum) {
super(MeshParticle2D.const_stride, maxNum * 4 * MeshParticle2D.const_stride, 4);
this.canReuse = true;
this.setAttributes(MeshParticle2D._fixattriInfo);
this.createQuadIB(maxNum);
this._quadNum = maxNum;
}
setMaxParticleNum(maxNum) {
this._vb._resizeBuffer(maxNum * 4 * MeshParticle2D.const_stride, false);
this.createQuadIB(maxNum);
}
static getAMesh(maxNum) {
if (MeshParticle2D._POOL.length) {
var ret = MeshParticle2D._POOL.pop();
ret.setMaxParticleNum(maxNum);
return ret;
}
return new MeshParticle2D(maxNum);
}
releaseMesh() {
;
this._vb.setByteLength(0);
this.vertNum = 0;
this.indexNum = 0;
MeshParticle2D._POOL.push(this);
}
destroy() {
this._ib.destroy();
this._vb.destroy();
this._vb.deleteBuffer();
}
}
MeshParticle2D.const_stride = 116;
MeshParticle2D._POOL = [];