cocostudio骨骼动画 -- 原点

1、如果把一个元素如CCSprite加入到CCArmature中,那么必须先要知道CCArmature的原点位置,

经过测试发现:原点大致在(下图所示),x居中,y位于底部。


2、

CCArmature本身继承与CCNode,所以可以设置

锚点和位置,但是CCArmature的大小,也可以说是上下左右的边界如何计算还不是很明白。

看下面的代码:

void CCArmature::updateOffsetPoint()
{
    // Set contentsize and Calculate anchor point.
    CCRect rect = boundingBox(); //计算大小
    setContentSize(rect.size);
    m_pOffsetPoint = ccp(-rect.origin.x,-rect.origin.y);
    if (rect.size.width != 0 && rect.size.height != 0)
    {
        setAnchorPoint(ccp(m_pOffsetPoint.x / rect.size.width,m_pOffsetPoint.y / rect.size.height));
    }
}


-->>

CCRect CCSkeleton::boundingBox () {
	float minX = FLT_MAX,minY = FLT_MAX,maxX = FLT_MIN,maxY = FLT_MIN;
	float scaleX = getScaleX();
	float scaleY = getScaleY();
	float vertices[8];
	for (int i = 0; i < skeleton->slotCount; ++i) {
		Slot* slot = skeleton->slots[i];
		if (!slot->attachment || slot->attachment->type != ATTACHMENT_REGION) continue;
		RegionAttachment* attachment = (RegionAttachment*)slot->attachment;
		RegionAttachment_computeVertices(attachment,slot->skeleton->x,slot->skeleton->y,slot->bone,vertices);
		minX = min(minX,vertices[VERTEX_X1] * scaleX);
		minY = min(minY,vertices[VERTEX_Y1] * scaleY);
		maxX = max(maxX,vertices[VERTEX_X1] * scaleX);
		maxY = max(maxY,vertices[VERTEX_Y1] * scaleY);
		minX = min(minX,vertices[VERTEX_X4] * scaleX);
		minY = min(minY,vertices[VERTEX_Y4] * scaleY);
		maxX = max(maxX,vertices[VERTEX_X4] * scaleX);
		maxY = max(maxY,vertices[VERTEX_Y4] * scaleY);
		minX = min(minX,vertices[VERTEX_X2] * scaleX);
		minY = min(minY,vertices[VERTEX_Y2] * scaleY);
		maxX = max(maxX,vertices[VERTEX_X2] * scaleX);
		maxY = max(maxY,vertices[VERTEX_Y2] * scaleY);
		minX = min(minX,vertices[VERTEX_X3] * scaleX);
		minY = min(minY,vertices[VERTEX_Y3] * scaleY);
		maxX = max(maxX,vertices[VERTEX_X3] * scaleX);
		maxY = max(maxY,vertices[VERTEX_Y3] * scaleY);
	}
	CCPoint position = getPosition();
	return CCRectMake(position.x + minX,position.y + minY,maxX - minX,maxY - minY);
}

相关文章

    本文实践自 RayWenderlich、Ali Hafizji 的文章《...
Cocos-code-ide使用入门学习地点:杭州滨江邮箱:appdevzw@1...
第一次開始用手游引擎挺激动!!!进入正题。下载资源1:从C...
    Cocos2d-x是一款强大的基于OpenGLES的跨平台游戏开发...
1.  来源 QuickV3sample项目中的2048样例游戏,以及最近《...
   Cocos2d-x3.x已经支持使用CMake来进行构建了,这里尝试...