Simple Camera Control

Community Showcases
1

First of all I started off this tutorial : http://www.unitylabs.net/tutorials/gameplay-mechanics/third-person-camera-controller/5

Then I learned bit of raycasting and added simple collision - when an object is infront of the camera is moves forward.

Any ideas, questions or help improving the script are most welcome.

@script AddComponentMenu("Camera-Control/Camera Controller")

//#pragma strict forces static typing 

var target : Transform;
private var distance : float = 5.0;
private var xSpeed = 250.0;
private var ySpeed = 120.0;
private var cameraMode = "third";
private var zoomMinLimit = 1;
private var zoomMaxLimit= 7;
private var tempDistance = -1.0;

private var x = 0.0;
private var y = 0.0;

private var autoFollow : boolean = false;



// raycast variables

    var hit : RaycastHit;
    var collider1 : Collider = new Collider();

function Start ()
{
    var angles = transform.eulerAngles;
    x = angles.y;
    y = angles.x;
}

function LateUpdate ()
{
	if(Input.GetAxis("Camera Mode") > 0) {
		cameraMode = "first";
		distance = 0.0;
	}
	
	if(Input.GetAxis("Camera Mode") < 0) {
		cameraMode = "third";
		distance = 5.0;
	}
	
	if((Input.GetAxis("Camera Zoom") < 0)  (cameraMode =="first")){
		cameraMode = "third";
	}
	
    if(cameraMode == "third")
    {
		var characterRotation = target.transform.eulerAngles.y;
		var cameraRotation = transform.eulerAngles.y;
		
		if((Input.GetAxis("Camera Zoom") > 0)  (distance > zoomMinLimit)){
			//distance = distance -1 / (xSpeed * 0.02);
			distance = distance - Input.GetAxis("Camera Zoom") / (xSpeed * 0.02);
		}
		
		if((Input.GetAxis("Camera Zoom") < 0)  (distance < zoomMaxLimit)){
			//distance = distance +1 / (xSpeed * 0.02);
			distance = distance - Input.GetAxis("Camera Zoom") / (xSpeed * 0.02);
		}
		
		if(!autoFollow){
			x += Input.GetAxis("Camera X") * xSpeed * 0.02;
			y -= Input.GetAxis("Camera Y") * ySpeed * 0.02;

			var rotation = Quaternion.Euler(y, x, 0);
			var position;
			if((tempDistance < 0) || (distance < tempDistance)){
				position = rotation * Vector3(0.0, 1.4, -distance) + target.position;
			} else {
				position = rotation * Vector3(0.0, 1.4, -tempDistance) + target.position;
			}
			//the 1 should be changed to a part of characters height

			transform.rotation = rotation;
			transform.position = position;
		} else {
			x += Input.GetAxis("Camera X") * xSpeed * 0.02;
			y -= Input.GetAxis("Camera Y") * ySpeed * 0.02;

			if(Input.GetAxis("Vertical") || Input.GetAxis("Horizontal")){
				rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(y, characterRotation, 0), Time.deltaTime * 3);
				if((tempDistance < 0) || (distance < tempDistance)){
					position = rotation * Vector3(0.0, 1.4, -distance) + target.position;
				} else {
					position = rotation * Vector3(0.0, 1.4, -tempDistance) + target.position;
				}
				x = characterRotation;
			}
			else{
				rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(y, x, 0), Time.deltaTime * 3);
				if((tempDistance < 0) || (distance < tempDistance)){
					position = rotation * Vector3(0.0, 1.4, -distance) + target.position;
				} else {
					position = rotation * Vector3(0.0, 1.4, -tempDistance) + target.position;
				}
			}

			transform.rotation = rotation;
			transform.position = position;
		}
    }
    else
    {
		characterRotation = target.transform.eulerAngles.y;
		x = characterRotation;
		rotation = Quaternion.Slerp(transform.rotation, Quaternion.Euler(0, characterRotation, 0), Time.deltaTime * 3);

		position = rotation * Vector3(0.0, 1.4, -distance) + target.position;

		transform.rotation = rotation;
		transform.position = position;
    }
	
	CameraRaycast();

}

function SwitchAutoFollow() {
	autoFollow = !autoFollow;
	if(autoFollow){
		print("Auto Follow On");
	} else {
		print("Auto Follow Off");
	}
}

function CameraRaycast(){
	
	var fwd = transform.right;
	var targetDir = target.transform.position - transform.position;
	var forward = transform.forward;
	var angle = Vector3.Angle(targetDir, forward);
	var asd = Vector3(0,angle,0);
	
	// This returns true if an object is hit by the ray
	if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward),hit, distance))
	{
		//stores the object hit
		collider1 = hit.collider;
		 
		Debug.DrawLine(transform.position, hit.point, Color.red);
		var colliderGo6o : Collider = hit.collider;
		var distanceToCam = Vector3.Distance(colliderGo6o.ClosestPointOnBounds(transform.position),transform.position);
		var distanceToChar = Vector3.Distance(colliderGo6o.ClosestPointOnBounds(transform.position),colliderGo6o.transform.position);
		tempDistance = distance - (distanceToChar + distanceToCam);
		//print("distance : " + distance +"     hit distance : " + hit.distance + " tempDistance  :  " + tempDistance);
    } else if(!Physics.Raycast(transform.position, transform.TransformDirection(-Vector3.forward), (distance - tempDistance))) {
		tempDistance = -1;
	}
}
2

i needed something like this , tanks
Do i add it at my main camera instead of mouse look?

3

Yeah