using UnityEngine;
#if ENABLE_INPUT_SYSTEM
using UnityEngine.InputSystem;
#endif
namespace KD.Destro2D{
    public class BasicPlayerControl2D : MonoBehaviour
    {
        #if ENABLE_INPUT_SYSTEM
        public InputActionAsset inputActions;
        public float bulletCD;
        InputAction move;
        InputAction missileAttack;
        InputAction bulletAttack;
        Rigidbody2D rb;
        public float speed;
        Vector2 lookDirn;
        Vector2 dirn;
        public GameObject missilePrefab;
        public GameObject bulletPrefab;
        public float missileSpeed;
        public float shootOffset;
        float t;
        void OnEnable()
        {
            move = inputActions.FindAction("Player/Move",true);
            missileAttack = inputActions.FindAction("Player/AltAttack",true);
            bulletAttack = inputActions.FindAction("Player/Attack",true);
            missileAttack.Enable();
            bulletAttack.Enable();
            move.Enable();
            rb = GetComponent<Rigidbody2D>();
        }
        void Start()
        {
            missileAttack.performed += _ => ShootMissile(missilePrefab);
            
        }
        void OnDisable()
        {
            missileAttack.Disable();
            bulletAttack.Disable();
            move.Disable();
        }
        // Update is called once per frame
        void Update()
        {
            t+=Time.deltaTime;
            Move();
            Look();
            if(bulletAttack.IsPressed()){
                if(t < bulletCD) return;
                ShootMissile(bulletPrefab);
                t = 0;
            }
        }
        void FixedUpdate()
        {
            rb.AddForce(dirn);
        }
        void ShootMissile(GameObject prefab)
        {
            float angle = Mathf.Atan2(lookDirn.y,lookDirn.x) * Mathf.Rad2Deg;
            Quaternion missileRotn = Quaternion.AngleAxis(angle,transform.forward);
            Rigidbody2D missile = Instantiate(prefab,(Vector2)transform.position + lookDirn.normalized * shootOffset,missileRotn).GetComponent<Rigidbody2D>();
            missile.AddForce(lookDirn.normalized * missileSpeed);
        }
        void Look()
        {
            Vector3 mousePos = Camera.main.ScreenToWorldPoint(Mouse.current.position.ReadValue());
            mousePos.z = transform.position.z;
            lookDirn = mousePos - transform.position;
        }
        void Move()
        {
            float dirval = move.ReadValue<float>();
            dirn = transform.right * dirval * speed;
            
        }
        #endif
    }
    
}