MouseLookPlus2

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End of support for UnityScript

Starting with Unity 2018.2, support for UnityScript (Unity's version of JavaScript) has ended. C# is now the only supported language going forward. You can learn more about the reasons for this change here. There is an official UnityScript-to-C# Automatic Conversion tool to help those wanting to transition their UnityScript projects over to C#.


Description

  • This has been slightly modified from MouseLookPlus v1, to allow for moving the camera with WASD.
  • You'll need to associate a camera with the script

This is a modified version of the C# MouseLook script in the Standard Assets. It's been converted to Javascript and using Keys to adjust the Look direction has been added. You will want to modify it for use - ie using a Key to look up while using the Mouse to look down at the same time will cause some problems. Deleting the KeyLook functions (and their invokes in Update) and taking the transforms out of the if statements will leave you with a JS version of MouseLook.

/// This is a modified javascript conversion of the Standard Assets MouseLook script.
/// Also added is functionallity of using a key to look up, down, left and right in addition to the Mouse.
/// Everything is on by default. You will want to turn off/on stuff depending on what you're doing.
 
/// You can also modify the script to use the KeyLook functions to control an object's rotation.
/// Try using MouseXandY on an object. Actually it works as is but you'll want to clean it up ;)
 
/// As of this version the key and mouse fight if used at the same time (ie up key and down mouse jitters).
 
/// Minimum and Maximum values can be used to constrain the possible rotation
 
/// To make an FPS style character:
/// - Create a capsule.
/// - Add a rigid body to the capsule
/// - Add the MouseLookPlus script to the capsule.
///   -> Set the script's Axis to MouseX in the inspector. (You want to only turn character but not tilt it)
/// - Add FPSWalker script to the capsule
 
/// - Create a camera. Make the camera a child of the capsule. Reset it's transform.
/// - Add the MouseLookPlus script to the camera.
///   -> Set the script's Axis to MouseY in the inspector. (You want the camera to tilt up and down like a head. The character already turns.)
 
    enum Axes {MouseXandY, MouseX, MouseY}
    var Axis : Axes = Axes.MouseXandY;
 
    var sensitivityX = 15.0;
    var sensitivityY = 15.0;
 
    var minimumX = -360.0;
    var maximumX = 360.0;
 
    var minimumY = -60.0;
    var maximumY = 60.0;
 
    var rotationX = 0.0;
    var rotationY = 0.0;
 
    var lookSpeed = 2.0;
 
    var cameraReference : Camera;
 
    function Update ()
    {
        // Move toward and away from the camera
        if (Input.GetAxis("Vertical"))
        {
            var translationZ = Input.GetAxis("Vertical");
            transform.localPosition += cameraReference.transform.localRotation * Vector3(0,0,translationZ);
        }
 
        // Strafe the camera
        if (Input.GetAxis("Horizontal"))
        {
            var translationX = Input.GetAxis("Horizontal");
            transform.localPosition += cameraReference.transform.localRotation * Vector3(translationX,0,0);
        }       
 
        if (Axis == Axes.MouseXandY)
        {
            // Read the mouse input axis
            rotationX += Input.GetAxis("Mouse X") * sensitivityX;
            rotationY += Input.GetAxis("Mouse Y") * sensitivityY;
 
            // Call our Adjust to 360 degrees and clamp function
            Adjust360andClamp();
 
            // Most likely you wouldn't do this here unless you're controlling an object's rotation.
            // Call our look left and right function.
            KeyLookAround();
 
            // Call our look up and down function.
            KeyLookUp();
        }
        else if (Axis == Axes.MouseX)
        {
            // Read the mouse input axis
            rotationX += Input.GetAxis("Mouse X") * sensitivityX;
 
            // Call our Adjust to 360 degrees and clamp function
            Adjust360andClamp();
 
            // if you're doing a standard X on object Y on camera control, you'll probably want to 
            // delete the key control in MouseX. Also, take the transform out of the if statement.
            // Call our look left and right function.
            KeyLookAround();
 
            // Call our look up and down function.
            KeyLookUp(); 
        }
        else
        {
            // Read the mouse input axis
            rotationY += Input.GetAxis("Mouse Y") * sensitivityY;
 
            // Call our Adjust to 360 degrees and clamp function
            Adjust360andClamp();
 
            // Call our look left and right function.
            KeyLookAround();
 
            // Call our look up and down function.
            KeyLookUp();
        }
    }
 
    function KeyLookAround ()
    {
//      If you're not using it, you can delete this whole function. 
//      Just be sure to delete where it's called in Update.
 
        // Call our Adjust to 360 degrees and clamp function
        Adjust360andClamp();
 
        // Transform our X angle
        transform.localRotation = Quaternion.AngleAxis (rotationX, Vector3.up);
    }
 
    function KeyLookUp ()
    {
        // Adjust for 360 degrees and clamp
        Adjust360andClamp();
 
        // Transform our Y angle, multiply so we don't loose our X transform
        transform.localRotation *= Quaternion.AngleAxis (rotationY, Vector3.left);
    }
 
    function Adjust360andClamp ()
    {
//      This prevents your rotation angle from going beyond 360 degrees and also 
//      clamps the angle to the min and max values set in the Inspector.
 
        // During in-editor play, the Inspector won't show your angle properly due to 
        // dealing with floating points. Uncomment this Debug line to see the angle in the console.
 
        // Debug.Log (rotationX);
 
        // Don't let our X go beyond 360 degrees + or -
        if (rotationX < -360)
        {
            rotationX += 360;
        }
        else if (rotationX > 360)
        {
            rotationX -= 360;
        }   
 
        // Don't let our Y go beyond 360 degrees + or -
        if (rotationY < -360)
        {
            rotationY += 360;
        }
        else if (rotationY > 360)
        {
            rotationY -= 360;
        }
 
        // Clamp our angles to the min and max set in the Inspector
        rotationX = Mathf.Clamp (rotationX, minimumX, maximumX);
        rotationY = Mathf.Clamp (rotationY, minimumY, maximumY);
    }
 
    function Start ()
    {
        // Make the rigid body not change rotation
        if (rigidbody)
        {
            rigidbody.freezeRotation = true;
        }
    }
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