koobas.hobune.stream
How to shoot 2d projectile in multiple directions 1 by 1? Left Right Up Down
I want to give this enemy the ability to shoot bullets left right up and down I am still new to prjectiles so excuse me if I am not writing the proper code 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class RotoShooter : MonoBehaviour {
[SerializeField]
private GameObject bullet;
private GameObject bullet2;
private GameObject bullet3;
private GameObject bullet4;
// Use this for initialization
void Start () {
StartCoroutine(Attack());
}
IEnumerator Attack ()
{
yield return new WaitForSeconds(Random.Range(2, 7));
Instantiate(bullet, transform.position, Quaternion.identity);
yield return new WaitForSeconds(Random.Range(2, 7));
Instantiate(bullet2, transform.position, Quaternion.identity);
yield return new WaitForSeconds(Random.Range(2, 7));
Instantiate(bullet3, transform.position, Quaternion.identity);
yield return new WaitForSeconds(Random.Range(2, 7));
Instantiate(bullet4, transform.position, Quaternion.identity);
}
// Update is called once per frame
void OnTriggerEnter2D (Collider2D target) {
if (target.tag == "Player")
{
Destroy(target.gameObject);
}
}
}
Instead of assigning 4 different Game Object for each direction, you only need one. Add a BulletScript to the bullet prefab, a Rigidbody2D, the script should have this function:
[SerializeField] Rigidbody2D m_RigidBody; //assign the bullet's rigidbody here
public void Init(Vector3 direction)
{
m_RigidBody.AddForce(direction);
}
To shoot a bullet, call this from the shooter:
GameObject tempBullet = Instantiate(bulletPrefab, transform.position, Quaternion.identity, null);
tempBullet.GetComponent<BulletScript>().Init(Vector3.up); //Vector3.up can be the direction you want here
