added implementation in GO lang

internal/modes/input.go

@@ -0,0 +1,83 @@
+package modes
+
+import (
+	"strconv"
+
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/inpututil"
+)
+
+func justPressedKeys() []ebiten.Key {
+	var keys []ebiten.Key
+	keys = inpututil.AppendJustPressedKeys(keys)
+	return keys
+}
+
+func childKey(key ebiten.Key) bool {
+	switch key {
+	case ebiten.KeyControl, ebiten.KeyControlLeft, ebiten.KeyControlRight,
+		ebiten.KeyShift, ebiten.KeyShiftLeft, ebiten.KeyShiftRight,
+		ebiten.KeyAlt, ebiten.KeyAltLeft, ebiten.KeyAltRight,
+		ebiten.KeyMeta, ebiten.KeyEscape,
+		ebiten.KeyF1, ebiten.KeyF2, ebiten.KeyF3, ebiten.KeyF4,
+		ebiten.KeyF5, ebiten.KeyF6, ebiten.KeyF7, ebiten.KeyF8,
+		ebiten.KeyF9, ebiten.KeyF10, ebiten.KeyF11, ebiten.KeyF12:
+		return false
+	default:
+		return true
+	}
+}
+
+func keyLabel(key ebiten.Key) string {
+	if r, ok := keyRune(key); ok {
+		return string(r)
+	}
+	switch key {
+	case ebiten.KeySpace:
+		return "SPACE"
+	case ebiten.KeyEnter, ebiten.KeyNumpadEnter:
+		return "ENTER"
+	case ebiten.KeyBackspace:
+		return "BKSP"
+	case ebiten.KeyDelete:
+		return "DEL"
+	case ebiten.KeyTab:
+		return "TAB"
+	case ebiten.KeyArrowLeft:
+		return "LEFT"
+	case ebiten.KeyArrowRight:
+		return "RIGHT"
+	case ebiten.KeyArrowUp:
+		return "UP"
+	case ebiten.KeyArrowDown:
+		return "DOWN"
+	default:
+		return key.String()
+	}
+}
+
+func keyRune(key ebiten.Key) (rune, bool) {
+	if key >= ebiten.KeyA && key <= ebiten.KeyZ {
+		return rune('A' + int(key-ebiten.KeyA)), true
+	}
+	if key >= ebiten.KeyDigit0 && key <= ebiten.KeyDigit9 {
+		return rune('0' + int(key-ebiten.KeyDigit0)), true
+	}
+	if key >= ebiten.KeyNumpad0 && key <= ebiten.KeyNumpad9 {
+		return rune('0' + int(key-ebiten.KeyNumpad0)), true
+	}
+	return 0, false
+}
+
+func digitValue(key ebiten.Key) (string, bool) {
+	r, ok := keyRune(key)
+	if !ok || r < '0' || r > '9' {
+		return "", false
+	}
+	return string(r), true
+}
+
+func parseDigit(s string) int {
+	v, _ := strconv.Atoi(s)
+	return v
+}