Added touch controls

Assets/Done/Done_Scripts/Done_EvasiveManeuver.cs

@@ -14,9 +14,12 @@ public class Done_EvasiveManeuver : MonoBehaviour
 	private float currentSpeed;
 	private float targetManeuver;
 
+	private Rigidbody rigidBody;
+
 	void Start ()
 	{
-		currentSpeed = rigidbody.velocity.z;
+		rigidBody = GetComponent<Rigidbody> ();
+		currentSpeed = rigidBody.velocity.z;
 		StartCoroutine(Evade());
 	}
 
@@ -34,15 +37,15 @@ IEnumerator Evade ()
 
 	void FixedUpdate ()
 	{
-		float newManeuver = Mathf.MoveTowards (rigidbody.velocity.x, targetManeuver, smoothing * Time.deltaTime);
-		rigidbody.velocity = new Vector3 (newManeuver, 0.0f, currentSpeed);
-		rigidbody.position = new Vector3
+		float newManeuver = Mathf.MoveTowards (rigidBody.velocity.x, targetManeuver, smoothing * Time.deltaTime);
+		rigidBody.velocity = new Vector3 (newManeuver, 0.0f, currentSpeed);
+		rigidBody.position = new Vector3
 		(
-			Mathf.Clamp(rigidbody.position.x, boundary.xMin, boundary.xMax), 
+				Mathf.Clamp(rigidBody.position.x, boundary.xMin, boundary.xMax), 
 			0.0f, 
-			Mathf.Clamp(rigidbody.position.z, boundary.zMin, boundary.zMax)
+				Mathf.Clamp(rigidBody.position.z, boundary.zMin, boundary.zMax)
 		);
 
-		rigidbody.rotation = Quaternion.Euler (0, 0, rigidbody.velocity.x * -tilt);
+		rigidBody.rotation = Quaternion.Euler (0, 0, rigidBody.velocity.x * -tilt);
 	}
 }

Assets/Done/Done_Scripts/Done_Mover.cs

@@ -5,8 +5,11 @@ public class Done_Mover : MonoBehaviour
 {
 	public float speed;
 
+	private Rigidbody rigidBody;
+
 	void Start ()
 	{
-		rigidbody.velocity = transform.forward * speed;
+		rigidBody = GetComponent<Rigidbody> ();
+		rigidBody.velocity = transform.forward * speed;
 	}
 }

Assets/Done/Done_Scripts/Done_PlayerController.cs

@@ -18,14 +18,22 @@ public class Done_PlayerController : MonoBehaviour
 	public float fireRate;
 
 	private float nextFire;
-
+	private Rigidbody rigidBody;
+	private AudioSource audioSource;
+
+	void Start()
+	{
+		rigidBody = GetComponent<Rigidbody> ();
+		audioSource = GetComponent<AudioSource> ();
+	}
+
 	void Update ()
 	{
 		if (Input.GetButton("Fire1") && Time.time > nextFire) 
 		{
 			nextFire = Time.time + fireRate;
 			Instantiate(shot, shotSpawn.position, shotSpawn.rotation);
-			audio.Play ();
+			audioSource.Play ();
 		}
 	}
 
@@ -35,15 +43,15 @@ void FixedUpdate ()
 		float moveVertical = Input.GetAxis ("Vertical");
 
 		Vector3 movement = new Vector3 (moveHorizontal, 0.0f, moveVertical);
-		rigidbody.velocity = movement * speed;
+		rigidBody.velocity = movement * speed;
 
-		rigidbody.position = new Vector3
+		rigidBody.position = new Vector3
 		(
-			Mathf.Clamp (rigidbody.position.x, boundary.xMin, boundary.xMax), 
+			Mathf.Clamp (rigidBody.position.x, boundary.xMin, boundary.xMax), 
 			0.0f, 
-			Mathf.Clamp (rigidbody.position.z, boundary.zMin, boundary.zMax)
+			Mathf.Clamp (rigidBody.position.z, boundary.zMin, boundary.zMax)
 		);
 
-		rigidbody.rotation = Quaternion.Euler (0.0f, 0.0f, rigidbody.velocity.x * -tilt);
+		rigidBody.rotation = Quaternion.Euler (0.0f, 0.0f, rigidBody.velocity.x * -tilt);
 	}
 }

Assets/Done/Done_Scripts/Done_RandomRotator.cs

@@ -4,9 +4,12 @@
 public class Done_RandomRotator : MonoBehaviour 
 {
 	public float tumble;
-
+
+	private Rigidbody rigidBody;
+
 	void Start ()
 	{
-		rigidbody.angularVelocity = Random.insideUnitSphere * tumble;
+		rigidBody = GetComponent<Rigidbody> ();
+		rigidBody.angularVelocity = Random.insideUnitSphere * tumble;
 	}
 }

Assets/Done/Done_Scripts/Done_WeaponController.cs

@@ -8,14 +8,17 @@ public class Done_WeaponController : MonoBehaviour
 	public float fireRate;
 	public float delay;
 
+	private AudioSource audioSource;
+
 	void Start ()
 	{
+		audioSource = GetComponent<AudioSource> ();
 		InvokeRepeating ("Fire", delay, fireRate);
 	}
 
 	void Fire ()
 	{
 		Instantiate(shot, shotSpawn.position, shotSpawn.rotation);
-		audio.Play();
+		audioSource.Play();
 	}
 }