/// <summary>
/// Called by PlayerManager every time the gun needs to be shot.
/// Protects against shooting faster than firerate allows
///
/// </summary>
public void Shoot()
{
// Make sure we can't shoot until it's time
if (!IsReadyToShoot)
{
return;
}
// Calculate the next time we can fire based on current time and the firerate
nextTimeToFire = Time.time + 1f / fireRate;
//Play gunshot sound
PlayGunShotSound();
// Play the muzzle flash particle system
muzzleFlash.Play();
// Create a raycast from fps camera position in the direction it is facing (limit raycast to 'range' distance away)
// Get back the 'hit' value (what got hit)
// If cast hit something...
if (Physics.Raycast(fpsCam.transform.position, fpsCam.transform.forward, out RaycastHit hit, range))
{
// Log what we hit
//Debug.LogFormat("Gun: Shoot() hit object: {0}", hit.transform.name);
// We expect game objects we are concerned about possibly hitting to be marked as targets (by our design)
// Get the target that was hit (if any)
ITarget target = hit.transform.GetComponent <ITarget>();
// If we hit a target...
if (target != null)
{
// Make target take damage
target.TakeDamage(damage, playerWhoOwnsThisGun.GetComponent <PlayerManager>());
}
// Add force to rigid body of target
// If target has rigidboy...
if (hit.rigidbody != null)
{
// We can add a force either one of two possible directions:
// 1) the direction we are looking
// 2) the normal of the surface we hit
// We'll use the normal (make sure it's negative so it's going backwards)
hit.rigidbody.AddForce(-hit.normal * impactForce);
}
// Create a new impact effect (GameObject)
// (Vector3) hit.point: where in space we our bullet landed
// Quaternion.LookRotation(hit.normal): a rotation representing the normal of the surface that we hit
GameObject impactGO = Instantiate(impactEffect, hit.point, Quaternion.LookRotation(hit.normal));
// Destroy the impact game object after 2 seconds so it doesn't clutter our game heirarchy during gameplay
Destroy(impactGO, 2f);
}
}
