/// <summary>
/// This method is used to assign traits to our missle assigned from the launcher.
/// </summary>
public void AssignMissleRules(Missile_Launcher.MissileType missileType, Transform target, float launchSpeed, float power, float fuseDelay, float destroyTimer)
{
_missileType = missileType; //assign the missle type
_target = target; //Who should the rocket follow?
_launchSpeed = launchSpeed; //set the launch speed
_power = power; //set the power
_fuseDelay = fuseDelay; //set the fuse delay
Destroy(this.gameObject, destroyTimer); //destroy the rocket after destroyTimer
}
// Update is called once per frame
void FixedUpdate()
{
if (_fuseOut == false) //check if fuseOut is false
{
return;
}
if (_launched == true) //check if launched is true
{
_rigidbody.AddForce(transform.forward * _launchSpeed); //add force to the rocket in the forward direction
if (Time.time > _initialLaunchTime + _fuseDelay) //check if the initial launch + fuse delay has passed
{
_launched = false; //launched bool goes false
_thrust = true; //thrust bool goes true
}
}
if (_thrust == true) //if thrust is true
{
_rigidbody.useGravity = true; //enable gravity
_rigidbody.velocity = transform.forward * _power; //set velocity multiplied by the power variable
_thrust = false; //set thrust bool to false
_trackRotation = true; //track rotation bool set to true
}
if (_trackRotation == true) //check track rotation bool
{
if (_missileType == Missile_Launcher.MissileType.Normal) //checking for normal missile
{
_rigidbody.rotation = Quaternion.LookRotation(_rigidbody.velocity); // adjust rotation of rocket based on velocity
_rigidbody.AddForce(transform.forward * 100f); //add force to the rocket
}
else if (_missileType == Missile_Launcher.MissileType.Homing) //if missle is homing
{
if (_target == null) //checking if the target is null
{
_missileType = Missile_Launcher.MissileType.Normal; //assign back to normal
return;
}
Vector3 direction = _target.position - transform.position; //calculate direciton for rocket to face
direction.Normalize(); //set the magnitude of the vector to 1
Vector3 turnAmount = Vector3.Cross(transform.forward, direction); //using cross product, we multiply our forward vector of the rocket by the direction vector, to create a perpendular vector, which specifies the turn amount
_rigidbody.angularVelocity = turnAmount * _power; //apply angular velocity
_rigidbody.velocity = transform.forward * _power; //apply forward velocity
}
}
}
