grapple unity
//Rigidbody Only
using UnityEngine;
public class Grapple_Gun : MonoBehaviour
{
private LineRenderer lr;
private Vector3 grapplePoint;
public LayerMask whatIsGrappleable;
public Transform gunTip, camera, player;
private float maxDistance = 100f;
private SpringJoint joint;
void Awake()
{
lr = GetComponent<LineRenderer>();
}
void Update()
{
if (Input.GetMouseButtonDown(1))
{
StartGrapple();
}
else if (Input.GetMouseButtonUp(1))
{
StopGrapple();
}
}
void LateUpdate()
{
DrawRope();
}
void StartGrapple()
{
RaycastHit hit;
if (Physics.Raycast(camera.position, camera.forward, out hit, maxDistance, whatIsGrappleable))
{
grapplePoint = hit.point;
joint = player.gameObject.AddComponent<SpringJoint>();
joint.autoConfigureConnectedAnchor = false;
joint.connectedAnchor = grapplePoint;
float distanceFromPoint = Vector3.Distance(player.position, grapplePoint);
joint.maxDistance = distanceFromPoint * 0.8f;
joint.minDistance = distanceFromPoint * 0.25f;
joint.spring = 5f;
joint.damper = 8f;
joint.massScale = 8f;
lr.positionCount = 2;
currentGrapplePosition = gunTip.position;
}
}
void StopGrapple()
{
lr.positionCount = 0;
Destroy(joint);
}
private Vector3 currentGrapplePosition;
void DrawRope()
{
if (!joint) return;
currentGrapplePosition = Vector3.Lerp(currentGrapplePosition, grapplePoint, Time.deltaTime * 8f);
lr.SetPosition(0, gunTip.position);
lr.SetPosition(1, currentGrapplePosition);
}
public bool IsGrappling()
{
return joint != null;
}
public Vector3 GetGrapplePoint()
{
return grapplePoint;
}
}