keyboard handling

presenter/keyboard.go

@@ -0,0 +1,82 @@
+package presenter
+
+import (
+	"fmt"
+	"reflect"
+
+	"github.com/hajimehoshi/ebiten"
+	"github.com/hajimehoshi/ebiten/inpututil"
+)
+
+type KeyMap struct {
+	Up      ebiten.Key
+	Down    ebiten.Key
+	Right   ebiten.Key
+	Left    ebiten.Key
+	Action0 ebiten.Key
+	Action1 ebiten.Key
+	Action2 ebiten.Key
+	Action3 ebiten.Key
+}
+
+type Keyboard struct {
+	PressedKey ebiten.Key
+	KeyMap     KeyMap
+}
+
+func CreateDefaultKeyMap() KeyMap {
+	return KeyMap{
+		Up:      ebiten.KeyUp,
+		Down:    ebiten.KeyDown,
+		Right:   ebiten.KeyRight,
+		Left:    ebiten.KeyLeft,
+		Action0: ebiten.KeySpace,
+		Action1: ebiten.KeyAlt,
+		Action2: ebiten.KeyControl,
+		Action3: ebiten.KeyEscape,
+	}
+}
+
+func (k *Keyboard) Watch() {
+	values := reflect.ValueOf(k.KeyMap)
+
+	for i := 0; i < values.NumField(); i++ {
+		key := values.Field(i).Interface().(ebiten.Key)
+		if inpututil.IsKeyJustPressed(key) {
+			fmt.Printf("Key pressed: %s\n", key)
+			k.PressedKey = key
+		}
+	}
+}
+
+func (k *Keyboard) UpPressed() bool {
+	return k.PressedKey == k.KeyMap.Up
+}
+
+func (k *Keyboard) DownPressed() bool {
+	return k.PressedKey == k.KeyMap.Down
+}
+
+func (k *Keyboard) RightPressed() bool {
+	return k.PressedKey == k.KeyMap.Right
+}
+
+func (k *Keyboard) LeftPressed() bool {
+	return k.PressedKey == k.KeyMap.Left
+}
+
+func (k *Keyboard) Action0Pressed() bool {
+	return k.PressedKey == k.KeyMap.Action0
+}
+
+func (k *Keyboard) Action1Pressed() bool {
+	return k.PressedKey == k.KeyMap.Action1
+}
+
+func (k *Keyboard) Action2Pressed() bool {
+	return k.PressedKey == k.KeyMap.Action2
+}
+
+func (k *Keyboard) Action3Pressed() bool {
+	return k.PressedKey == k.KeyMap.Action3
+}