Cannon Action from GD205 Week 9

CannonBoom.cs

using UnityEngine;
using System.Collections;

public class CannonBoom : MonoBehaviour {

	public GameObject projBlueprint;
	public Transform projOrigin;
	Quaternion newRotation;
	public GameObject cannon;
	public float projForce = 300f;
	bool doRotate;
	float rotPct;
	public int whichButton;

	void Start () {
		doRotate = false;
		rotPct = 0f;
	}
	void Update () {
		Ray ourRay = Camera.main.ScreenPointToRay (Input.mousePosition);
		RaycastHit rayHit = new RaycastHit ();
		Debug.DrawRay(ourRay.origin, ourRay.direction * 1000f, Color.magenta);
		if (Physics.Raycast (ourRay, out rayHit, 1000f) && Input.GetMouseButtonDown (whichButton)) {
			Debug.Log ("you dun hit smthnggg");
			newRotation = Quaternion.LookRotation (rayHit.point - cannon.transform.position);
			doRotate = true;
			rotPct = 0f;
		} 
		if (doRotate) {
			float rotSpeed = Time.deltaTime;
			rotPct += rotSpeed;
			Debug.Log ("Barrel rotated by ... " + rotPct * 100f + "%");
			if (rotPct < 1f) {
				cannon.transform.rotation = Quaternion.Slerp (cannon.transform.rotation, newRotation, rotSpeed);
			} else {
				GameObject newProj = Instantiate (projBlueprint, projOrigin.transform.position, projOrigin.rotation) as GameObject;
				newProj.GetComponent<Rigidbody> ().AddForce (projOrigin.forward * projForce);
				doRotate = false;
				cannon.GetComponent<AudioSource> ().Play ();
				StartCoroutine(ScreenShake.Shake(0.25f, 0.5f));
			}
		}

	}
}