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using UnityEngine;
using System.Collections;
/* THIS CODE IS JUST FOR PREVIEW AND TESTING */
// Feel free to use any code and picking on it, I cannot guaratnee it will fit into your project
public class ExplodingProjectile : MonoBehaviour
{
public GameObject impactPrefab;
public GameObject explosionPrefab;
public float thrust;
public Rigidbody thisRigidbody;
public GameObject particleKillGroup;
private Collider thisCollider;
public bool LookRotation = true;
public bool Missile = false;
public Transform missileTarget;
public float projectileSpeed;
public float projectileSpeedMultiplier;
public bool ignorePrevRotation = false;
public bool explodeOnTimer = false;
public float explosionTimer;
float timer;
private Vector3 previousPosition;
// Use this for initialization
void Start()
{
thisRigidbody = GetComponent<Rigidbody>();
if (Missile)
{
missileTarget = GameObject.FindWithTag("Target").transform;
}
thisCollider = GetComponent<Collider>();
previousPosition = transform.position;
}
// Update is called once per frame
void Update()
{
/* if(Input.GetButtonUp("Fire2"))
{
Explode();
}*/
timer += Time.deltaTime;
if (timer >= explosionTimer && explodeOnTimer == true)
{
Explode();
}
}
void FixedUpdate()
{
if (Missile)
{
projectileSpeed += projectileSpeed * projectileSpeedMultiplier;
// transform.position = Vector3.MoveTowards(transform.position, missileTarget.transform.position, 0);
transform.LookAt(missileTarget);
thisRigidbody.AddForce(transform.forward * projectileSpeed);
}
if (LookRotation && timer >= 0.05f)
{
transform.rotation = Quaternion.LookRotation(thisRigidbody.velocity);
}
CheckCollision(previousPosition);
previousPosition = transform.position;
}
void CheckCollision(Vector3 prevPos)
{
RaycastHit hit;
Vector3 direction = transform.position - prevPos;
Ray ray = new Ray(prevPos, direction);
float dist = Vector3.Distance(transform.position, prevPos);
if (Physics.Raycast(ray, out hit, dist))
{
transform.position = hit.point;
Quaternion rot = Quaternion.FromToRotation(Vector3.forward, hit.normal);
Vector3 pos = hit.point;
Instantiate(impactPrefab, pos, rot);
if (!explodeOnTimer && Missile == false)
{
Destroy(gameObject);
}
else if (Missile == true)
{
thisCollider.enabled = false;
particleKillGroup.SetActive(false);
thisRigidbody.velocity = Vector3.zero;
Destroy(gameObject, 5);
}
}
}
void OnCollisionEnter(Collision collision)
{
if (collision.gameObject.tag != "FX")
{
ContactPoint contact = collision.contacts[0];
Quaternion rot = Quaternion.FromToRotation(Vector3.forward, contact.normal);
if (ignorePrevRotation)
{
rot = Quaternion.Euler(0, 0, 0);
}
Vector3 pos = contact.point;
Instantiate(impactPrefab, pos, rot);
if (!explodeOnTimer && Missile == false)
{
Destroy(gameObject);
}
else if (Missile == true)
{
thisCollider.enabled = false;
particleKillGroup.SetActive(false);
thisRigidbody.velocity = Vector3.zero;
Destroy(gameObject, 5);
}
}
}
void Explode()
{
Instantiate(explosionPrefab, gameObject.transform.position, Quaternion.Euler(0, 0, 0));
Destroy(gameObject);
}
}
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