Hi everyone,
I wanted to share a small project of mine. It is just a rolling ball scene but the thing here is ball’s rotation is not fixed. This is all the problem I had so I wanted to share my solution. Any suggestions or downsides you see on my script is welcomed. Wanted to discuss if I am on the right track. Project is uploaded to mediafire I had problem while sending it to unity server it said empty file, I did not wanted to hassle so uploaded to mediafire and here is the script.
Here is media fire link
http://www.mediafire.com/?467h6l1y57x1zm5
var BallItem : GameObject;
var Speed : float = 1000.0;
var HorizontalSpeed : float = 1000.0;
private var Degrees : float = 0.0174532925199432958;
private var FirstBallPoint : Vector3;
private var horizontalSpeed = 100.0;
private var verticalSpeed = 100.0;
function Start() {
FirstBallPoint = BallItem.transform.position;
}
function Update() {
var RotationVector : Vector3 = new Vector3(0,1,0);
var RotationPoint : Vector3 = new Vector3(BallItem.transform.position.x,
transform.position.y,
BallItem.transform.position.z);
var h = horizontalSpeed * Input.GetAxis ("Mouse X");
transform.RotateAround(RotationPoint,
RotationVector,
h * Mathf.Deg2Rad);
var CameraPositionChange = BallItem.transform.position - FirstBallPoint;
transform.position += CameraPositionChange;
FirstBallPoint = BallItem.transform.position;
transform.LookAt(BallItem.transform.position);
}
function FixedUpdate () {
var BallForceVector : Vector3;
var BallSideForceVector : Vector3;
if(Input.GetKey("up")) {
BallForceVector = GetBallForceVector();
} else if(Input.GetKey("down")) {
BallForceVector = -1*GetBallForceVector();
}
if(Input.GetKey("right")) {
BallSideForceVector = this.GetBallSideForceVector();
} else if(Input.GetKey("left")) {
BallSideForceVector = -1*GetBallSideForceVector();
}
BallForceVector = BallForceVector + BallSideForceVector;
BallItem.rigidbody.AddForce(BallForceVector);
}
function GetBallForceVector() : Vector3 {
var yangle : float = (transform.rotation.eulerAngles.y%360);
var xvector : float = 0;
var yvector : float = 0;
var zvector : float = 0;
if(yangle < 0) yangle += 360;
zvector = Mathf.Cos(yangle * Degrees)*Speed;
xvector = Mathf.Sin(yangle * Degrees)*Speed;
return Vector3(xvector, yvector, zvector);
}
function GetBallSideForceVector() {
var yangle : float = (transform.rotation.eulerAngles.y%360);
var xvector : float = 0;
var yvector : float = 0;
var zvector : float = 0;
yangle += 90;
if(yangle < 0) yangle += 360;
zvector = Mathf.Cos(yangle * Degrees)*Speed;
xvector = Mathf.Sin(yangle * Degrees)*Speed;
return Vector3(xvector, yvector, zvector);
}
My approach is that if ball’s rotation is not fixed than camera should be the position that I should put my self. So I wrote the script to be attached to main camera.
.