/// <summary>
/// Retrusn the world affine transform matrix. The matrix is in Pixels.
/// @since v0.7.1
/// </summary>
public CCAffineTransform nodeToWorldTransform()
{
CCAffineTransform t = this.nodeToParentTransform();
CCNode p = m_pParent;
while (p != null)
{
var temp = p.nodeToParentTransform();
t = CCAffineTransform.CCAffineTransformConcat(t, temp);
p = p.parent;
}
return(t);
}
/// <summary>
/// Returns the matrix that transform the node's (local) space coordinates into the parent's space coordinates.
/// The matrix is in Pixels.
/// @since v0.7.1
/// </summary>
public CCAffineTransform nodeToParentTransform()
{
if (m_bIsTransformDirty)
{
m_tTransform = CCAffineTransform.CCAffineTransformMakeIdentity();
if (!m_bIsRelativeAnchorPoint && !m_tAnchorPointInPixels.IsZero)
{
m_tTransform = CCAffineTransform.CCAffineTransformTranslate(m_tTransform, m_tAnchorPointInPixels.x, m_tAnchorPointInPixels.y);
}
if (!m_tPositionInPixels.IsZero)
{
m_tTransform = CCAffineTransform.CCAffineTransformTranslate(m_tTransform, m_tPositionInPixels.x, m_tPositionInPixels.y);
}
if (m_fRotation != 0f)
{
m_tTransform = CCAffineTransform.CCAffineTransformRotate(m_tTransform, -ccMacros.CC_DEGREES_TO_RADIANS(m_fRotation));
}
if (m_fSkewX != 0f || m_fSkewY != 0f)
{
// create a skewed coordinate system
CCAffineTransform skew = CCAffineTransform.CCAffineTransformMake(1.0f,
(float)Math.Tan(ccMacros.CC_DEGREES_TO_RADIANS(m_fSkewY)),
(float)Math.Tan(ccMacros.CC_DEGREES_TO_RADIANS(m_fSkewX)), 1.0f, 0.0f, 0.0f);
// apply the skew to the transform
m_tTransform = CCAffineTransform.CCAffineTransformConcat(skew, m_tTransform);
}
if (!(m_fScaleX == 1f && m_fScaleY == 1f))
{
m_tTransform = CCAffineTransform.CCAffineTransformScale(m_tTransform, m_fScaleX, m_fScaleY);
}
if (!m_tAnchorPointInPixels.IsZero)
{
m_tTransform = CCAffineTransform.CCAffineTransformTranslate(m_tTransform, -m_tAnchorPointInPixels.x, -m_tAnchorPointInPixels.y);
}
m_bIsTransformDirty = false;
}
return(m_tTransform);
}
