Added new enemy character. WIP.

touch/touch.go

@@ -0,0 +1,51 @@
+package touch
+
+import (
+	"github.com/hajimehoshi/ebiten/v2"
+	"github.com/hajimehoshi/ebiten/v2/inpututil"
+	"golang.org/x/exp/maps"
+)
+
+var (
+	allTouchIDs          []ebiten.TouchID
+	currentTouchIDs      map[ebiten.TouchID]bool
+	justPressedTouchIDs  map[ebiten.TouchID]bool
+	justReleasedTouchIDs map[ebiten.TouchID]bool
+)
+
+func UpdateTouchIDs() {
+	newPressedTouchIDs := []ebiten.TouchID{}
+	newPressedTouchIDs = inpututil.AppendJustPressedTouchIDs(newPressedTouchIDs)
+	justPressedTouchIDs = map[ebiten.TouchID]bool{}
+	for i := 0; i < len(newPressedTouchIDs); i++ {
+		justPressedTouchIDs[newPressedTouchIDs[i]] = true
+		currentTouchIDs[newPressedTouchIDs[i]] = true
+	}
+	justReleasedTouchIDs = map[ebiten.TouchID]bool{}
+	allTouchIDs = maps.Keys(currentTouchIDs)
+	newReleasedTouchIDs := []ebiten.TouchID{}
+	newReleasedTouchIDs = inpututil.AppendJustReleasedTouchIDs(newReleasedTouchIDs)
+	for i := 0; i < len(newReleasedTouchIDs); i++ {
+		justReleasedTouchIDs[newReleasedTouchIDs[i]] = true
+		delete(currentTouchIDs, newReleasedTouchIDs[i])
+	}
+}
+
+func GetTouchIDs() []ebiten.TouchID {
+	return allTouchIDs
+}
+
+func IsTouchJustPressed(touchID ebiten.TouchID) bool {
+	return justPressedTouchIDs[touchID]
+}
+
+func IsTouchJustReleased(touchID ebiten.TouchID) bool {
+	return justReleasedTouchIDs[touchID]
+}
+
+func init() {
+	allTouchIDs = []ebiten.TouchID{}
+	currentTouchIDs = map[ebiten.TouchID]bool{}
+	justPressedTouchIDs = map[ebiten.TouchID]bool{}
+	justReleasedTouchIDs = map[ebiten.TouchID]bool{}
+}