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ebitenutil: Add the DebugPrintAt function (#684)

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Fixes #683
This commit is contained in:
ryosama 2018-09-21 22:21:13 +02:00 committed by Hajime Hoshi
parent e1347c58ca
commit f0d6853631
1 changed files with 11 additions and 3 deletions
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14
ebitenutil/debugprint.go
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@ -30,17 +30,25 @@ func init() {
debugPrintTextImage, _ = ebiten.NewImageFromImage(img, ebiten.FilterDefault)
}
// DebugPrint draws the string str on the image.
// DebugPrint draws the string str on the image on left top corner.
//
// The available runes are in U+0000 to U+00FF, which is C0 Controls and Basic Latin and C1 Controls and Latin-1 Supplement.
//
// DebugPrint always returns nil as of 1.5.0-alpha.
func DebugPrint(image *ebiten.Image, str string) error {
drawDebugText(image, str, 1, 1, true)
drawDebugText(image, str, 0, 0, false)
DebugPrintAt(image, str, 0, 0)
return nil
}
// DebugPrintAt draws the string str on the image at X and Y coordinates.
//
// The available runes are in U+0000 to U+00FF, which is C0 Controls and Basic Latin and C1 Controls and Latin-1 Supplement.
func DebugPrintAt(image *ebiten.Image, str string, x, y int) {
drawDebugText(image, str, x+1, y+1, true)
drawDebugText(image, str, x, y, false)
}
func drawDebugText(rt *ebiten.Image, str string, ox, oy int, shadow bool) {
op := &ebiten.DrawImageOptions{}
if shadow {