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minor optimization in Sprite

This commit is contained in:
faiface 2017-04-12 16:18:25 +02:00
parent 3276c4e4a1
commit 14a01a5522
1 changed files with 9 additions and 4 deletions
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13
sprite.go
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@ -58,8 +58,10 @@ func (s *Sprite) Frame() Rect {
// Note, that this has nothing to do with BasicTarget's SetMatrix method. This only affects this // Note, that this has nothing to do with BasicTarget's SetMatrix method. This only affects this
// Sprite and is usable with any Target. // Sprite and is usable with any Target.
func (s *Sprite) SetMatrix(matrix Matrix) { func (s *Sprite) SetMatrix(matrix Matrix) {
s.matrix = matrix if s.matrix != matrix {
s.calcData() s.matrix = matrix
s.calcData()
}
} }
// Matrix returns the currently set Matrix. // Matrix returns the currently set Matrix.
@ -73,8 +75,11 @@ func (s *Sprite) Matrix() Matrix {
// Note, that this has nothing to do with BasicTarget's SetColorMask method. This only affects this // Note, that this has nothing to do with BasicTarget's SetColorMask method. This only affects this
// Sprite and is usable with any Target. // Sprite and is usable with any Target.
func (s *Sprite) SetColorMask(mask color.Color) { func (s *Sprite) SetColorMask(mask color.Color) {
s.mask = ToRGBA(mask) rgba := ToRGBA(mask)
s.calcData() if s.mask != rgba {
s.mask = ToRGBA(mask)
s.calcData()
}
} }
// ColorMask returns the currently set color mask. // ColorMask returns the currently set color mask.