Unity2D中不使用AddForce的回退

public class RetreatBehavior : MonoBehaviour
{
    public float retreatDistance = 2.0f; // 回退距离
    public Vector2 retreatDirection = Vector2.back; // 回退方向，默认向后

    void Retreat()
    {
        // 计算新的位置
        Vector2 newPosition = transform.position + retreatDirection * retreatDistance;
        // 设置新位置
        transform.position = newPosition;
    }

    // 示例触发回退的方法
    void OnTriggerEnter2D(Collider2D other)
    {
        if (other.CompareTag("Enemy")) // 假设敌人标签为"Enemy"
        {
            Retreat();
        }
    }
}

void RetreatSmoothly()
{
    Vector2 targetPosition = transform.position + retreatDirection * retreatDistance;
    transform.position = Vector2.Lerp(transform.position, targetPosition, Time.deltaTime * smoothSpeed);
}