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examples/typewriter: Refactoring: Use inpututil

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This commit is contained in:
Hajime Hoshi 2018-04-14 05:32:41 +09:00
parent fac7651152
commit 54bec7a3eb
1 changed files with 5 additions and 7 deletions
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12
examples/typewriter/main.go
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@ -22,12 +22,12 @@ import (
"github.com/hajimehoshi/ebiten" "github.com/hajimehoshi/ebiten"
"github.com/hajimehoshi/ebiten/ebitenutil" "github.com/hajimehoshi/ebiten/ebitenutil"
"github.com/hajimehoshi/ebiten/inpututil"
) )
var ( var (
text = "Type on the keyboard:\n" text = "Type on the keyboard:\n"
counter = 0 counter = 0
bsPrevPressed = false
) )
func update(screen *ebiten.Image) error { func update(screen *ebiten.Image) error {
@ -43,18 +43,16 @@ func update(screen *ebiten.Image) error {
} }
// If the enter key is pressed, add a line break. // If the enter key is pressed, add a line break.
if ebiten.IsKeyPressed(ebiten.KeyEnter) && !strings.HasSuffix(text, "\n") { if inpututil.IsKeyJustPressed(ebiten.KeyEnter) || inpututil.IsKeyJustPressed(ebiten.KeyKPEnter) {
text += "\n" text += "\n"
} }
// If the backspace key is pressed, remove one character. // If the backspace key is pressed, remove one character.
bsPressed := ebiten.IsKeyPressed(ebiten.KeyBackspace) if inpututil.IsKeyJustPressed(ebiten.KeyBackspace) {
if !bsPrevPressed && bsPressed {
if len(text) >= 1 { if len(text) >= 1 {
text = text[:len(text)-1] text = text[:len(text)-1]
} }
} }
bsPrevPressed = bsPressed
counter++ counter++