obstacle collission added, but not working yet

components/position.go

@@ -72,7 +72,13 @@ func (position *Position) String() string {
 }
 
 func (position *Position) Move(velocity *Velocity, speed *Speed) {
-	position.Update(position.X+(velocity.Data.X*speed.Value), position.Y+(velocity.Data.Y*speed.Value))
+	if velocity.Direction != 0 {
+		slog.Debug("moving", "velocity", velocity, "speed", speed)
+	}
+	position.Update(
+		position.X+(velocity.Data.X*speed.Value),
+		position.Y+(velocity.Data.Y*speed.Value),
+	)
 }
 
 func (position *Position) Set(newpos *Position) {

components/velocity.go

@@ -35,3 +35,21 @@ func (velocity *Velocity) Change(direction int) {
 func (velocity *Velocity) Moving() bool {
 	return velocity.Data.X != 0 || velocity.Data.Y != 0
 }
+
+func (velocity *Velocity) InvertDirection() int {
+	switch velocity.Direction {
+	case East:
+		return West
+	case West:
+		return East
+	case South:
+		return North
+	case North:
+		return South
+	case All:
+		return Stop
+	}
+
+	// should not happen
+	return All
+}