SpatialInfo SpatialInfo::UnmapFromParent(const SpatialInfo& parentInfo) const
{
float unmappedX;
float unmappedY;
float unmappedAngle = angle_ + parentInfo.angle_;
float unmappedScaleX = scaleX_ * parentInfo.scaleX_;
float unmappedScaleY = scaleY_ * parentInfo.scaleY_;
float unmappedAlpha = alpha_ * parentInfo.alpha_;
if (x_ != 0.0f || y_ != 0.0f)
{
float preMultX = x_ * parentInfo.scaleX_;
float preMultY = y_ * parentInfo.scaleY_;
float s = Sin(parentInfo.angle_);
float c = Cos(parentInfo.angle_);
unmappedX = (preMultX * c) - (preMultY * s) + parentInfo.x_;
unmappedY = (preMultX * s) + (preMultY * c) + parentInfo.y_;
}
else
{
unmappedX = parentInfo.x_;
unmappedY = parentInfo.y_;
}
return SpatialInfo(unmappedX, unmappedY, unmappedAngle, unmappedScaleX, unmappedScaleY, unmappedAlpha, spin);
}
void SpriterInstance::setSpatialInfo(float x, float y, float angle, float scaleX, float scaleY)
{
spatialInfo_ = SpatialInfo(x, y, angle, scaleX, scaleY);
}
