javascript - “来自纹理的 Sprite ”不采用命中区域多边形

Question

我有一个 Sprite ，其纹理定义如下:

// Create sprite
spriteObj = new PIXI.Sprite(tileTexture);
spriteObj.interactive = true;

spriteObj.anchor = new PIXI.Point(0,0.5);

spriteObj.click = function(mouseData) {
    alert("Clicked Me!");
};

然后我使用多边形创建一个命中区域，如下所示:

polyCords = new PIXI.Polygon([
    new PIXI.Point(xPos,yPos),
    new PIXI.Point(xPos + (tileWidth / 2), yPos + (tileHeight/2)),
    new PIXI.Point(xPos + tileWidth, tyPos),
    new PIXI.Point(xPos + tileWidth / 2, this.yPos - (tileHeight/2)),
]);

我将多边形指定为 Sprite 的命中区域:

spriteObj.hitArea = polyCords;

然后将 Sprite 添加到舞台:

stage.addChild(spriteObj);

到目前为止一切顺利。但是，命中区域不正确。为了测试命中区域的坐标是否正确，我使用图形对象绘制一个代表多边形的彩色形状，如下所示:

testTile = new PIXI.Graphics();
testTile.beginFill(0x21B837);
testTile.drawShape(polyCords);
testTile.endFill();
stage.addChild(testTile);

形状绘制(完美)，我期望的命中区域但实际命中区域与我绘制的形状不对应!

Answer 1

以下 TypeScript 在 PIXI v3.0.3 下运行良好

SpriteFromPoints(graphics, points /*PIXI.Point[]*/, bounds /*{x, y, width, height}*/, isInteractive) {
    var polygon = graphics.drawPolygon(points);
    var zoneSprite = new PIXI.Sprite(polygon.generateTexture(1, (<any>PIXI).SCALE_MODES.DEFAULT));// no d.ts yet for v3
    zoneSprite.position.x = bounds.x;
    zoneSprite.position.y = bounds.y;
    zoneSprite.interactive = isInteractive || false;
    if (zoneSprite.interactive) {
        // can't assign the polygon from above for whatever reason
        // seems to be a different type and doesn't have the contains method
        zoneSprite.hitArea = new PIXI.Polygon(points); 
    }
    return zoneSprite;
}

添加返回的 Sprite ，点击区域是我预期的。