Unity Tutorial: 3rd Person Vehicle, Steering with Mouse
A tutorial responding to James Hanvey's request -- how to steer a sphere using the mouse, with W for thrust, and with the camera following the sphere.
Apologies to James for almost immediately getting your name wrong: 'Harvey'. Sorry!
So, only two scripts needed. See below for the code :)
The steering setup will almost certainly need refactoring to deal with rotations messing up when pitch becomes too extreme: I will look for a clean solution!
Thanks for watching.
Code for the two scripts:
public class steerThrust : MonoBehaviour {
// Mouse direction (how much has mouse moved).
Vector2 mDir;
public float acc = 0.9f;
// Speed of vehicle.
float speed = 0f;
void Update () {
mouseSteer();
thrust ();
}
void thrust(){
// Pressed key?
// Increase speed.
if (Input.GetKey (KeyCode.W)) {
speed += acc;
}
// Translate by this transform's forward vector.
this.transform.Translate (this.transform.forward *
Time.deltaTime * speed);
// Deceleration/air friction.
speed *= 0.96f;
}
void mouseSteer(){
// What is the new mouse position on screen?
Vector2 mc = new Vector2(Input.GetAxisRaw("Mouse X"),
Input.GetAxisRaw("Mouse Y"));
// Add new movement to current mouse direction.
mDir += mc;
// Multiply both axes together and rotate this transform.
this.transform.localRotation =
Quaternion.AngleAxis (mDir.x, Vector3.up) *
Quaternion.AngleAxis (-mDir.y, Vector3.right);
}
}
***************
***************
public class CamFollow : MonoBehaviour {
// What shall we look at?
public Transform target;
void Update () {
// Look at target transform.
this.transform.LookAt (target.position);
// Set position to 10 units behind target.
this.transform.position = target.position +
(this.transform.forward * -10f);
}
}