const AABB& Sprite3D::getAABB() const
{
Mat4 nodeToWorldTransform(getNodeToWorldTransform());
// If nodeToWorldTransform matrix isn't changed, we don't need to transform aabb.
if (memcmp(_nodeToWorldTransform.m, nodeToWorldTransform.m, sizeof(Mat4)) == 0 && !_aabbDirty)
{
return _aabb;
}
else
{
_aabb.reset();
if (_meshes.size())
{
Mat4 transform(nodeToWorldTransform);
for (const auto& it : _meshes) {
if (it->isVisible())
_aabb.merge(it->getAABB());
}
_aabb.transform(transform);
_nodeToWorldTransform = nodeToWorldTransform;
_aabbDirty = false;
}
}
return _aabb;
}
CCPoint CCNode::convertToWorldSpace(CCPoint nodePoint)
{
CCPoint ret;
if(CC_CONTENT_SCALE_FACTOR() == 1)
{
ret = CCPointApplyAffineTransform(nodePoint, nodeToWorldTransform());
}
else
{
ret = ccpMult( nodePoint, CC_CONTENT_SCALE_FACTOR() );
ret = CCPointApplyAffineTransform(ret, nodeToWorldTransform());
ret = ccpMult( ret, 1/CC_CONTENT_SCALE_FACTOR() );
}
return ret;
}
KKPoint convertToWorldSpace(const KKPoint &nodePoint)
{
kmMat4 *transform = nodeToWorldTransform();
return KKPoint((float)((double)transform->mat[0]*nodePoint.x+(double)transform->mat[4]*nodePoint.y+transform->mat[12]), (float)((double)transform->mat[1]*nodePoint.x+(double)transform->mat[5]*nodePoint.y+transform->mat[13]));
//TODO cocos2d-x
// kmVec3 vec3 = {nodePoint.x, nodePoint.y, 0};
// kmVec3 ret;
// kmVec3Transform(&ret, &vec3, transform);
// return KKPoint(ret.x, ret.y);
}
void CScrollView::visit()
{
glEnable(GL_SCISSOR_TEST);
CCRect rect = CCRectMake(0, 0, m_obContentSize.width, m_obContentSize.height);
rect = CCRectApplyAffineTransform(rect, nodeToWorldTransform());
CCEGLView::sharedOpenGLView()->setScissorInPoints(rect.origin.x, rect.origin.y, rect.size.width, rect.size.height);
CPanel::visit();
glDisable(GL_SCISSOR_TEST);
}
bool Container::checkTouch(CCTouch *pTouch){ //当需要更精确的tab判定时继承并修改修改即可
if( getContentSize().width * getContentSize().height > 1.0f )
{
CCPoint pt = pTouch->getLocation();
CCRect rcBoundingBox( 0, 0, getContentSize().width, getContentSize().height );
rcBoundingBox = CCRectApplyAffineTransform( rcBoundingBox, nodeToWorldTransform() );
//[PassMessageDebug] CCLOG("Check here:%f,%f in %f,%f,%f,%f",pt.x,pt.y,rcBoundingBox.origin.x,rcBoundingBox.origin.y,rcBoundingBox.size.width,rcBoundingBox.size.height);
if( !rcBoundingBox.containsPoint( pt ) )
{
//[PassMessageDebug] CCLOG(">Check the collide rect:failed;");
return false;
}
}else{
return false;
}
return true;
}
kmMat4 *worldToNodeTransform()
{
kmMat4Inverse(_worldToNodeTransform, nodeToWorldTransform()); //反转矩阵
return _worldToNodeTransform;
}
const CCRect& Layout::getClippingRect()
{
if (_clippingRectDirty)
{
_handleScissor = true;
CCPoint worldPos = convertToWorldSpace(CCPointZero);
CCAffineTransform t = nodeToWorldTransform();
float scissorWidth = _size.width*t.a;
float scissorHeight = _size.height*t.d;
CCRect parentClippingRect;
Layout* parent = this;
bool firstClippingParentFounded = false;
while (parent)
{
parent = dynamic_cast<Layout*>(parent->getParent());
if(parent)
{
if (parent->isClippingEnabled())
{
if (!firstClippingParentFounded)
{
_clippingParent = parent;
firstClippingParentFounded = true;
}
if (parent->_clippingType == LAYOUT_CLIPPING_SCISSOR)
{
_handleScissor = false;
break;
}
}
}
}
if (_clippingParent)
{
parentClippingRect = _clippingParent->getClippingRect();
float finalX = worldPos.x - (scissorWidth * m_obAnchorPoint.x);
float finalY = worldPos.y - (scissorHeight * m_obAnchorPoint.y);
float finalWidth = scissorWidth;
float finalHeight = scissorHeight;
float leftOffset = worldPos.x - parentClippingRect.origin.x;
if (leftOffset < 0.0f)
{
finalX = parentClippingRect.origin.x;
finalWidth += leftOffset;
}
float rightOffset = (worldPos.x + scissorWidth) - (parentClippingRect.origin.x + parentClippingRect.size.width);
if (rightOffset > 0.0f)
{
finalWidth -= rightOffset;
}
float topOffset = (worldPos.y + scissorHeight) - (parentClippingRect.origin.y + parentClippingRect.size.height);
if (topOffset > 0.0f)
{
finalHeight -= topOffset;
}
float bottomOffset = worldPos.y - parentClippingRect.origin.y;
if (bottomOffset < 0.0f)
{
finalY = parentClippingRect.origin.x;
finalHeight += bottomOffset;
}
if (finalWidth < 0.0f)
{
finalWidth = 0.0f;
}
if (finalHeight < 0.0f)
{
finalHeight = 0.0f;
}
_clippingRect.origin.x = finalX;
_clippingRect.origin.y = finalY;
_clippingRect.size.width = finalWidth;
_clippingRect.size.height = finalHeight;
}
else
{
_clippingRect.origin.x = worldPos.x - (scissorWidth * m_obAnchorPoint.x);
_clippingRect.origin.y = worldPos.y - (scissorHeight * m_obAnchorPoint.y);
_clippingRect.size.width = scissorWidth;
_clippingRect.size.height = scissorHeight;
}
_clippingRectDirty = false;
}
return _clippingRect;
}
CCPoint CCNode::convertToWorldSpace(const CCPoint& nodePoint)
{
return nodeToWorldTransform().apply(nodePoint);
}