Rocket Launcher code

Unity Engine
1

I’m desperate with this i need to make a rocket launcher code to my game.It should work like this:
When player press Fire1->Create some object to be a rocket->Give a force or a velocity or something to change the rocket position.
Looks so simple but i’m breaking my head in that task.Can someboy help me:face_with_spiral_eyes:

2

here is my rocket launcher code…

public Vector3 muzzlePoint = null;      // weapon's muzzle point
public GameObject rocket = null;        // the rocket round

private float[] bulletInfo = new float[6];// all of the info sent to a fired bullet

void Update()
{
        if (Input.GetButtonDown("Fire1"))
                {
                    Launcher_Fire();
                }
}

Launcher_Fire()
{
        Vector3 position = muzzlePoint.position; // position to spawn rocket / grenade is at the muzzle point of the gun

// set the gun's info into an array to send to the bullet
        bulletInfo[0] = damage;  //gun's damage to send to rocket
        bulletInfo[1] = impactForce;  // force applied to a hit object
        bulletInfo[2] = maxPenetration; // not used in rockets since most rockets don't penetrate anything.... set to 1
        bulletInfo[3] = maxSpread;  // maximum amount of spread allowed
        bulletInfo[4] = spread;     // current spread, Max and current spreads are mostly for machine guns
        bulletInfo[5] = bulletSpeed;  // how fast do you want the rocket to be

        GameObject newRocket = Instantiate(rocket, position, transform.parent.rotation) as GameObject;   // create rocket    
        newRocket.SendMessageUpwards("SetUp", bulletInfo);  // send info to the new rocket
        if (audio)
        {
            audio.Play();  // if there is a gun shot sound....play it
        }
}

this will spawn a rocket game object at your muzzlepoint of your weapon. My rocket has its own script to handle itself.

    public float lifetime = 5.0f;
    public GameObject explosion;        // instanced explosion
    private float damage;               // damage bullet applies to a target
    //private float maxHits;              // number of collisions before bullet gets destroyed
    private float impactForce;          // force applied to a rigid body object
    private float maxInaccuracy;        // maximum amount of inaccuracy
    private float variableInaccuracy;   // used in machineguns to decrease accuracy if maintaining fire
    private float speed;                // bullet speed
    private string ownersName = "";     // name of player that launched missle

    private Vector3 velocity = Vector3.zero; // bullet velocity
    private Vector3 newPos = Vector3.zero;   // bullet's new position
    private Vector3 direction;               // direction bullet is travelling

    private string[] rocketInfo = new string[2];


    public void SetUp(float[] info)
    {
        damage = info[0];
        impactForce = info[1];
        //maxHits = info[2];
        maxInaccuracy = info[3];
        variableInaccuracy = info[4];
        speed = info[5];

        direction = transform.TransformDirection(Random.Range(-maxInaccuracy, maxInaccuracy) * variableInaccuracy, Random.Range(-maxInaccuracy, maxInaccuracy) * variableInaccuracy, 1);

        newPos = transform.position;
        velocity = speed * transform.forward;

        // schedule for destruction if bullet never hits anything
        Invoke("Kill", lifetime);
    }

    void Update()
    {
        direction = transform.TransformDirection(Random.Range(-maxInaccuracy, maxInaccuracy) * variableInaccuracy, Random.Range(-maxInaccuracy, maxInaccuracy) * variableInaccuracy, 1);
                      
        // assume we move all the way
        newPos += (velocity + direction) * Time.deltaTime;

        transform.position = newPos;
    }


    void OnCollisionEnter(Collision collision)
    {
        if (collision.transform.tag == "Projectile")
        {
            return; // ignore collisions with other projectiles
        }
        // Instantiate explosion at the impact point and rotate the explosion
        // so that the y-axis faces along the surface normal
        ContactPoint contact = collision.contacts[0];
        Quaternion rotation = Quaternion.FromToRotation(Vector3.up, contact.normal);
        Instantiate(explosion, contact.point, rotation);

        rocketInfo[0] = ownersName;
        rocketInfo[1] = damage.ToString();
        
        collision.collider.SendMessageUpwards("ImHit", rocketInfo, SendMessageOptions.DontRequireReceiver);

        if (collision.rigidbody)
        {
            collision.rigidbody.AddForce(transform.forward * impactForce, ForceMode.Impulse);
        }

        // And kill our selves
        Kill();
    }

    void Kill()
    {
        // Stop emitting particles in any children
        ParticleEmitter emitter = (ParticleEmitter)GetComponentInChildren<ParticleEmitter>();
        if (emitter)
            emitter.emit = false;

        // Detach children - We do this to detach the trail rendererer which should be set up to auto destruct
        transform.DetachChildren();

        // Destroy the projectile
        Destroy(gameObject);
    }

set it up similar to this and it will work fine. I left out a few variables… like damage and those, but you should get the idea. Check the gun script in the link in my sig if you need a downloadable project version to look over.

3

Thank you!Coming up next i’ll test it(i’m not at home).

Tanks:)