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affine: Implement (*GeoM).String() and (*ColorM).String()

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Fixes #586
This commit is contained in:
Hajime Hoshi 2018-05-08 01:53:59 +09:00
parent fbeed96bb5
commit c22857ca89
2 changed files with 20 additions and 0 deletions
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12
colorm.go
View File

@ -15,6 +15,8 @@
package ebiten package ebiten
import ( import (
"fmt"
"image/color" "image/color"
"github.com/hajimehoshi/ebiten/internal/affine" "github.com/hajimehoshi/ebiten/internal/affine"
@ -35,6 +37,16 @@ type ColorM struct {
impl *affine.ColorM impl *affine.ColorM
} }
// String returns a string representation of ColorM.
func (c *ColorM) String() string {
b, t := c.impl.UnsafeElements()
return fmt.Sprintf("[[%f, %f, %f, %f, %f], [%f, %f, %f, %f, %f], [%f, %f, %f, %f, %f], [%f, %f, %f, %f, %f]]",
b[0], b[4], b[8], b[12], t[0],
b[1], b[5], b[9], b[13], t[1],
b[2], b[6], b[10], b[14], t[2],
b[3], b[7], b[11], b[15], t[3])
}
// Reset resets the ColorM as identity. // Reset resets the ColorM as identity.
func (c *ColorM) Reset() { func (c *ColorM) Reset() {
c.impl = nil c.impl = nil

8
geom.go
View File

@ -15,6 +15,8 @@
package ebiten package ebiten
import ( import (
"fmt"
"github.com/hajimehoshi/ebiten/internal/affine" "github.com/hajimehoshi/ebiten/internal/affine"
) )
@ -28,6 +30,12 @@ type GeoM struct {
impl *affine.GeoM impl *affine.GeoM
} }
// String returns a string representation of GeoM.
func (g *GeoM) String() string {
a, b, c, d, tx, ty := g.impl.Elements()
return fmt.Sprintf("[[%f, %f, %f], [%f, %f, %f]]", a, b, tx, c, d, ty)
}
// Reset resets the GeoM as identity. // Reset resets the GeoM as identity.
func (g *GeoM) Reset() { func (g *GeoM) Reset() {
g.impl = nil g.impl = nil