Mouse Controller

Thank you for the link! I was unable to find a script that suits my needs. I did find another script that I will need, and have not even got to yet. I have been experimenting, and found that if I work with the constraints on an object, I can set the constraints on key press, and the movement will be controlled using the DragRigidBody script. The only problem I am having is that I want the object to have constraints only while the mouse button is down. When I set constraints on mousedown it overrides everything other key press nested within the onmousedown. Each key press should change the constraints, and finally remove them when the item is dropped. (so gravity will act properly on the item) Here is my script. Sorry ahead of time for the amount of commenting, it is how I keep my projects strait so I work on only one thing at a time, and document nested statements.

This script will be placed on each rigidbody that I want to move with itself set as target in the inspector.

 using UnityEngine;
 using System.Collections;
 
 public class ObjectSelect : MonoBehaviour {
     
     
     public Transform _target;
     
     // Use this for initialization
     void Start () {
     
     }
     
     // Update is called once per frame
     
     #region Update
     void Update () {
     
         //Rotate Camera to LEFT side of container
         if(Input.GetKeyDown ("q")){
             //Will need to check to see what position camera is in.  
             //if MainCamera Xpos is >= _CameraCenterXPos{
             //MainCamera.Transform = 
             //Else MainCamera.Transform = CenterCameraXPos
             //        This should act as a TOGGLE, not a push and hold.
             
             //    Left side of cube will need renderer.enabled = false
             //    renderer.enabled = true when left and center.
             
         }
         
         //Rotate Camera to RIGHT side of container
         
         if(Input.GetKeyDown ("e")){
             // This key should operate the opposite of the Q button
             //
             //
             //            This will act as a camera TOGGLE not a push and hold.
             //
             //
             // Right side of cube will need renderer.enabled = false when on right
             //renderer.enabled = true when left and center.
             
             
         }
         
         
         if (Input.GetMouseButton(0)) { // if 1
         
             ConstraintsSetZRotate();
             
                 if(Input.GetKeyDown("w")){
                     //Code to control when W is pressed
                             
                         ConstraintsSetZon();            
                         Debug.Log ("W was pressed");
                     } //end W KeyDown Code
                         
                         
                 if(Input.GetKeyUp("w")){
                     //Code to reset values changed by W
 
                         ConstraintsSetZRotate();        
                         Debug.Log ("W was released");
                     }  // end W Keyup code                    
                         
                 if(Input.GetKeyDown("left shift")){
                     //Code to control when Shift is pressed
 
                         ConstraintsEnableRotateOnly();
                         Debug.Log("Left Shift Pressed");
                     }    //end Shift Keydown code
                         
                 if(Input.GetKeyUp("left shift")){
                     //Code to reset values changed by Shift
                                 
                         ConstraintsSetZRotate();
                         Debug.Log("Left Shift Released");                
                     } //end Shift Keyup Code
             
             
         } // End MouseDown event
         
         if(Input.GetMouseButtonUp(0)){
             
             ConstraintsZonly();
             
         }
         
         
     } // End Update
     #endregion
     
     private void ConstraintsSetZRotate(){
         //Sets All Rotation and Z axis to disabled.
         _target.rigidbody.constraints = RigidbodyConstraints.FreezeRotation|RigidbodyConstraints.FreezePositionZ;
     }
     
     private void ConstraintsSetZon(){
         //Disable all positions except Z
         _target.rigidbody.constraints = RigidbodyConstraints.FreezePositionX|RigidbodyConstraints.FreezePositionY|RigidbodyConstraints.FreezeRotation;
         
     }
     
     private void ConstraintsEnableRotateOnly(){
         //Disable all Positions Enable Only Rotations
         
         _target.rigidbody.constraints = RigidbodyConstraints.FreezePositionZ|RigidbodyConstraints.FreezePositionX|RigidbodyConstraints.FreezePositionY;    
     }
     
     private void ConstraintsZonly(){
         
         _target.rigidbody.constraints = RigidbodyConstraints.FreezePositionZ;
         
     }
 }