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minor optimization in Sprite

This commit is contained in:
faiface 2017-04-12 16:18:25 +02:00
parent b2819732fc
commit 0bfc4cd068
1 changed files with 9 additions and 4 deletions
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5
sprite.go
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@ -58,9 +58,11 @@ func (s *Sprite) Frame() Rect {
// Note, that this has nothing to do with BasicTarget's SetMatrix method. This only affects this
// Sprite and is usable with any Target.
func (s *Sprite) SetMatrix(matrix Matrix) {
if s.matrix != matrix {
s.matrix = matrix
s.calcData()
}
}
// Matrix returns the currently set Matrix.
func (s *Sprite) Matrix() Matrix {
@ -73,9 +75,12 @@ func (s *Sprite) Matrix() Matrix {
// Note, that this has nothing to do with BasicTarget's SetColorMask method. This only affects this
// Sprite and is usable with any Target.
func (s *Sprite) SetColorMask(mask color.Color) {
rgba := ToRGBA(mask)
if s.mask != rgba {
s.mask = ToRGBA(mask)
s.calcData()
}
}
// ColorMask returns the currently set color mask.
func (s *Sprite) ColorMask() RGBA {