Picking up/Holding objects?

Questions & Answers
1

Hello :)

Simular to the Half Life 2 functions, is there any easy way to make my character able to pick up objects and holding them mid-air while moving them around?

As we speak, I have some dr. pepper cans models with rigidbodys that reaaallllyyy want to be picked up and thrown around :3

4

this is the script you will need(.js)

var normalCollisionCount = 1;
var spring = 50.0;
var damper = 5.0;
var drag = 10.0;
var angularDrag = 5.0;
var distance = 0.2;
var throwForce = 500;
var throwRange = 1000;
var attachToCenterOfMass = false;
 
private var springJoint : SpringJoint;
 
function Update ()
{
	// Make sure the user pressed the mouse down
	if (!Input.GetMouseButtonDown (0))
		return;
 
	var mainCamera = FindCamera();
 
	// We need to actually hit an object
	var hit : RaycastHit;
	if (!Physics.Raycast(mainCamera.ScreenPointToRay(Input.mousePosition),  hit, 100))
		return;
	// We need to hit a rigidbody that is not kinematic
	if (!hit.rigidbody || hit.rigidbody.isKinematic)
		return;
 
	if (!springJoint)
	{
		var go = new GameObject("Rigidbody dragger");
		var body : Rigidbody = go.AddComponent ("Rigidbody") as Rigidbody;
		springJoint = go.AddComponent ("SpringJoint");
		body.isKinematic = true;
	}
 
	springJoint.transform.position = hit.point;
	if (attachToCenterOfMass)
	{
		var anchor = transform.TransformDirection(hit.rigidbody.centerOfMass) + hit.rigidbody.transform.position;
		anchor = springJoint.transform.InverseTransformPoint(anchor);
		springJoint.anchor = anchor;
	}
	else
	{
		springJoint.anchor = Vector3.zero;
	}
 
	springJoint.spring = spring;
	springJoint.damper = damper;
	springJoint.maxDistance = distance;
	springJoint.connectedBody = hit.rigidbody;
 
	StartCoroutine ("DragObject", hit.distance);
}
 
function DragObject (distance : float)
{
	var oldDrag = springJoint.connectedBody.drag;
	var oldAngularDrag = springJoint.connectedBody.angularDrag;
	springJoint.connectedBody.drag = drag;
	springJoint.connectedBody.angularDrag = angularDrag;
	var mainCamera = FindCamera();
	while (Input.GetMouseButton (0))
	{
		var ray = mainCamera.ScreenPointToRay (Input.mousePosition);
		springJoint.transform.position = ray.GetPoint(distance);
		yield;
 
		if (Input.GetMouseButton (1)){
		    springJoint.connectedBody.AddExplosionForce(throwForce,mainCamera.transform.position,throwRange);
		    springJoint.connectedBody.drag = oldDrag;
		    springJoint.connectedBody.angularDrag = oldAngularDrag;
		    springJoint.connectedBody = null;
		}
	}
	if (springJoint.connectedBody)
	{
		springJoint.connectedBody.drag = oldDrag;
		springJoint.connectedBody.angularDrag = oldAngularDrag;
		springJoint.connectedBody = null;
	}
}
 
function FindCamera ()
{
	if (camera)
		return camera;
	else
		return Camera.main;
}
2

You could try parenting them to the camera. This should make them look like they are 'floating' in the same place on the screen no matter where you look (similar to picking up a cube in portal). You'll have to reset the position every frame if you want a rigidbody on them (or set the rigidbodies to kinematic) so that they don't go flying if the player runs them into something.

3

This link has a extremely similar thing to what you are asking.

5

Hey I have added 2 Script to Complete a full Grab toggle and ready to move code,

Fixed An Inversion Error and a Euler read error while moving. since yesterday it is now working as stated below

ObjectReplyIdAndLock, ObjectGrabIdAndMove

ObjectGrabIdAndLock goes on Main player,… ObjectReplyIdAndMove goes on Moveable Objects remember to add layers in you want to hit in inspector and pick the Headcam Ect

Updated Scripts Since the other week now with full movement And Rotation and Full Inversion Options

This is Complete bar Diagnals and Mouse Rotation as im adding this now, you want to use the option OverideDiagnals and possibly UseDefaultRotation if u hate my defualt.

too add mouse copy the whole auto inversion and paste it underneath and swap the names to the mouse names instead of the default keys its a mission dont attempt it lol. i will do this over the week as still cleaing up the script its pretty large, Please contact at Exvalid@gmail.com To give me job coding.

cheers Ryan kappeslink text Exvalid@gmail.com[105512-objectgrabscripts.zip|105512]