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ecs适配egret

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This commit is contained in:
yhh
2020-06-29 15:41:02 +08:00
parent a63d8598d8
commit a4f1ae351f
33 changed files with 647 additions and 871 deletions
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4
source/src/Utils/Vector2Ext.ts
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@@ -63,4 +63,8 @@ class Vector2Ext {
public static transform(sourceArray: Vector2[], matrix: Matrix2D, destinationArray: Vector2[]) {
this.transformA(sourceArray, 0, matrix, destinationArray, 0, sourceArray.length);
}
public static round(vec: Vector2){
return new Vector2(Math.round(vec.x), Math.round(vec.y));
}
}

48
source/src/Utils/WebGLUtils.ts
View File

@@ -1,48 +0,0 @@
class WebGLUtils {
public static getWebGL(): WebGLRenderingContext {
if (egret.WebGLUtils.checkCanUseWebGL())
return document.querySelector("canvas").getContext("webgl");
throw new Error("cannot get webgl");
}
public static drawUserIndexPrimitives<T>(primitiveType: number, vertexData: T[], vertexOffset: number,
numVertices: number, indexData: number[], indexOffset: number, primitiveCount: number) {
let GL = this.getWebGL();
GL.bindBuffer(GL.ARRAY_BUFFER, 0);
this.checkGLError();
GL.bindBuffer(GL.ELEMENT_ARRAY_BUFFER, 0);
this.checkGLError();
GL.drawElements(primitiveType,
this.getElementCountArray(primitiveType, primitiveCount),
GL.UNSIGNED_SHORT,
indexOffset * 2);
this.checkGLError();
}
private static getElementCountArray(primitiveType: number, primitiveCount: number) {
let GL = this.getWebGL();
switch (primitiveType) {
case GL.LINES:
return primitiveCount * 2;
case GL.LINE_STRIP:
return primitiveCount + 1;
case GL.TRIANGLES:
return primitiveCount * 3;
case GL.TRIANGLE_STRIP:
return primitiveCount + 2;
}
throw new Error("not support");
}
public static checkGLError() {
let GL = this.getWebGL();
let error = GL.getError();
if (error != GL.NO_ERROR) {
throw new Error("GL.GetError() returned" + error);
}
}
}