/// <summary>Function for controller trigger fully pressed</summary>
public void Grab()
{
if (!grabbing && !squeezing && holdingObj == null)
{
RaycastHit closestHit;
if (HandClosestHit(out closestHit, reachDistance, LayerMask.GetMask("Grabbable", "Grabbing", "Holding", "Releasing")) != Vector3.zero)
{
StartCoroutine(GrabObject(closestHit));
}
}
else if (holdingObj != null)
{
if (holdingObj.GetComponent <GrabLock>())
{
holdingObj.GetComponent <GrabLock>().OnGrabPressed?.Invoke();
}
}
}
/// <summary>Takes a hit from a grabbable object and moves the hand towards that point, then calculates ideal hand shape</summary>
IEnumerator GrabObject(RaycastHit hit)
{
Grabbable lookingAtGrab;
if (GetGrabbable(lookingAtObj, out lookingAtGrab))
{
lookingAtGrab.Unhighlight();
}
lookingAtObj = null;
Grabbable tempHoldingObj;
if (!GetGrabbable(hit.collider.gameObject, out tempHoldingObj))
{
yield break;
}
//Checks if the grabbable script is enabled
if (!tempHoldingObj.enabled)
{
yield break;
}
//If the hand doesn't match the settings
if ((tempHoldingObj.handType == HandType.left && !left) || (tempHoldingObj.handType == HandType.right && left))
{
yield break;
}
//Hand Swap - One Handed Items
if (tempHoldingObj.singleHandOnly && tempHoldingObj.HeldCount() > 0)
{
tempHoldingObj.ForceHandsRelease();
yield return(new WaitForFixedUpdate());
yield return(new WaitForEndOfFrame());
}
holdingObj = tempHoldingObj;
startGrabPos = transform.position;
startGrabRot = transform.rotation;
OnBeforeGrabbed?.Invoke(this, holdingObj);
//GrabbableBase check - cancels grab if failed
var grabBase = holdingObj.GetComponent <GrabbablePointBase>();
if (grabBase != null && !grabBase.Align(this))
{
yield break;
}
//Set layers for grabbing
var originalLayer = LayerMask.LayerToName(holdingObj.gameObject.layer);
holdingObj.SetLayerRecursive(holdingObj.transform, LayerMask.NameToLayer("Grabbable"), LayerMask.NameToLayer("Grabbing"));
holdingObj.SetLayerRecursive(holdingObj.transform, LayerMask.NameToLayer("Holding"), LayerMask.NameToLayer("Grabbing"));
holdingObj.SetLayerRecursive(holdingObj.transform, LayerMask.NameToLayer("Releasing"), LayerMask.NameToLayer("Grabbing"));
SetLayerRecursive(transform, LayerMask.NameToLayer("HandHolding"));
//SETS GRAB POINT
grabPoint = new GameObject().transform;
grabPoint.position = hit.point;
grabPoint.parent = hit.transform;
grabbing = true;
palmOffset = transform.position - palmTransform.position;
moveTo.position = grabPoint.transform.position + palmOffset;
moveTo.rotation = grabPoint.transform.rotation;
freezeRot = true;
//Aligns the hand using the closest hit point
IEnumerator AutoAllign()
{
foreach (var finger in fingers)
{
finger.ResetBend();
}
var mass = body.mass;
var dir = HandClosestHit(out _, reachDistance, LayerMask.GetMask("Grabbing"));
var palmOriginParent = palmTransform.parent;
palmTransform.parent = null;
var originParent = transform.parent;
transform.parent = palmTransform;
palmTransform.LookAt(grabPoint.position, transform.forward);
transform.parent = originParent;
palmTransform.parent = palmOriginParent;
body.mass = 0;
transform.position = grabPoint.position + palmOffset;
grabbingFrame = true;
body.WakeUp();
holdingObj.body.WakeUp();
Physics.SyncTransforms();
yield return(new WaitForFixedUpdate());
body.WakeUp();
grabbingFrame = false;
if (holdingObj != null)
{
holdingObj.body.WakeUp();
}
body.mass = mass;
}
//Predetermined Pose
if (holdingObj.GetComponent <GrabbablePose>())
{
grabPose = holdingObj.GetComponent <GrabbablePose>();
grabPose.SetGrabPose(this);
}
//Allign Position
else if (grabBase == null)
{
yield return(StartCoroutine(AutoAllign()));
}
if (holdingObj != null)
{
//Finger Bend
if (grabPose == null)
{
foreach (var finger in fingers)
{
finger.BendFingerUntilHit(fingerBendSteps, LayerMask.GetMask("Grabbing"));
}
}
//Connect Joints
joint1 = gameObject.AddComponent <FixedJoint>();
joint1.connectedBody = holdingObj.body;
joint1.breakForce = 10000000;
joint1.breakTorque = 10000000;
joint1.connectedMassScale = 1;
joint1.massScale = 1;
joint1.enableCollision = false;
joint1.enablePreprocessing = false;
joint2 = holdingObj.body.gameObject.AddComponent <FixedJoint>();
joint2.connectedBody = body;
joint2.breakForce = 10000000;
joint2.breakTorque = 10000000;
joint2.connectedMassScale = 1;
joint2.massScale = 1;
joint2.enableCollision = false;
joint2.enablePreprocessing = false;
grabPoint.transform.position = transform.position;
grabPoint.transform.rotation = transform.rotation;
OnGrabbed?.Invoke(this, holdingObj);
holdingObj.OnGrab(this);
yield return(new WaitForFixedUpdate());
if (holdingObj != null)
{
joint1.breakForce = holdingObj.jointBreakForce;
joint1.breakTorque = holdingObj.jointBreakForce;
joint2.breakForce = holdingObj.jointBreakForce;
joint2.breakTorque = holdingObj.jointBreakForce;
grabLocked = true;
}
if (grabPose != null || grabBase != null)
{
transform.rotation = moveTo.rotation;
}
}
//Reset Values
freezePos = false;
freezeRot = false;
grabbing = false;
yield return(new WaitForEndOfFrame());
if (grabPose != null || grabBase != null)
{
transform.rotation = follow.rotation;
}
}