// For when using a batch node
// In this instance, drawing will not make use of node's local matrix
public void UpdateTransformedSpriteTextureQuads()
{
if (batchNode == null || AtlasIndex == CCMacros.CCSpriteIndexNotInitialized)
{
return;
}
transformedQuad = quad;
// We can't use the AffineWorldTransform because that's the 2d projection of a 3d transformation
// i.e. The Z coords of our quad would remain unaltered which in general incorrect
// Instead, we need use the XnaWolrdTransform which incorporates any potential z-transforms
Matrix worldMatrix = XnaWorldMatrix;
Vector3 topLeft = quad.TopLeft.Vertices.XnaVector;
Vector3 topRight = quad.TopRight.Vertices.XnaVector;
Vector3 bottomLeft = quad.BottomLeft.Vertices.XnaVector;
Vector3 bottomRight = quad.BottomRight.Vertices.XnaVector;
topLeft = Vector3.Transform(topLeft, worldMatrix);
topRight = Vector3.Transform(topRight, worldMatrix);
bottomLeft = Vector3.Transform(bottomLeft, worldMatrix);
bottomRight = Vector3.Transform(bottomRight, worldMatrix);
transformedQuad.TopLeft.Vertices = new CCVertex3F(topLeft.X, topLeft.Y, topLeft.Z);
transformedQuad.TopRight.Vertices = new CCVertex3F(topRight.X, topRight.Y, topRight.Z);
transformedQuad.BottomLeft.Vertices = new CCVertex3F(bottomLeft.X, bottomLeft.Y, bottomLeft.Z);
transformedQuad.BottomRight.Vertices = new CCVertex3F(bottomRight.X, bottomRight.Y, bottomRight.Z);
if (textureAtlas != null && textureAtlas.TotalQuads > AtlasIndex)
{
textureAtlas.UpdateQuad(ref transformedQuad, AtlasIndex);
}
}
// For when using a batch node
// In this instance, drawing will not make use of node's local matrix
public void UpdateTransformedSpriteTextureQuads()
{
if (batchNode == null || AtlasIndex == CCMacros.CCSpriteIndexNotInitialized)
{
return;
}
transformedQuad =
AffineWorldTransform.Transform(quad);
if (textureAtlas != null && textureAtlas.TotalQuads > AtlasIndex)
{
textureAtlas.UpdateQuad(ref transformedQuad, AtlasIndex);
}
}