void Update()
{
if (game.gameState() != GameState.Play && game.gameState() != GameState.ExitingLevel)
return;
// Every frame, the cursor updates what interactable thing it's looking at
// This is done by raycasting into the scene while ignoring the player / raycastignored
// ~( (1 << 8) | (1 << 9) ) is a layermask which ignores those above two layers selectively
// If we find a PlayerInteractable object within range, but it says it's disabled, ignore it
RaycastHit hit;
Ray ray = game.playerCamera.ViewportPointToRay(new Vector3(0.5f, 0.5f, 0));
Physics.Raycast(ray, out hit, interactDistance, ~( (1 << 8) | (1 << 2) ));
PlayerInteractable current = null;
if (hit.transform != null)
current = hit.transform.GetComponent<PlayerInteractable>();
if (current != null && !current.isInteractable())
current = null;
lookingAt = current;
// If the player isn't grabbing anything, and they left click while looking at something interactable,
// they need to either begin grabbing it (if it's PlayerGrabbable) or simply send it an interact signal
if (grabbing == null)
{
if (Input.GetButtonDown("Mouse Left Click") && lookingAt != null)
{
if (lookingAt is PlayerGrabbable)
{
grabbing = (PlayerGrabbable) lookingAt;
grabTime = Time.time;
grabPosition = grabbing.holdPosition;
transform.localPosition = grabPosition;
grabbing.transform.parent = transform;
grabbing.interact(0);
grabJoint.connectedBody = hit.rigidbody;
lookingAt = null;
}
else
lookingAt.interact(0);
}
}
// Check if the grabbed object should be released. Multiple conditions satisfy this:
// 1) The user presses LMB (dropped release)
// 2) The user presses RMB (thrown release)
// 3) The object becomes noninteractable
// 4) After snapTime, the object's distance from the grabber becomes greater than snapDistance
else
{
if (grabPosition != grabbing.holdPosition)
{
grabPosition = grabbing.holdPosition;
grabbing.transform.parent = null;
transform.localPosition = grabPosition;
grabbing.transform.parent = transform;
}
if ((Input.GetButtonDown("Mouse Left Click"))
|| (Input.GetButtonDown("Mouse Right Click"))
|| (!grabbing.isInteractable())
|| (Time.time > grabTime + snapTime && Vector3.Distance(transform.position, grabbing.transform.position) > snapDistance))
{
grabbing.transform.parent = null;
grabbing.interact(1);
grabJoint.connectedBody.velocity = game.player.getPhysicalVelocity();
if (Input.GetButtonDown("Mouse Right Click"))
grabJoint.connectedBody.AddForce(transform.rotation * Vector3.forward * throwForce);
grabJoint.connectedBody = null;
grabbing = null;
}
}
// Make the grabber bob with the camera
Vector3 target = grabPosition - (transform.parent.localPosition - new Vector3(0, 1.5f, 0)) * 0.5f;
transform.localPosition = Vector3.Lerp(transform.localPosition, target, 0.5f);
}
void Awake()
{
game = GetComponentInParent<GameController>();
grabbable = GetComponent<PlayerGrabbable>();
body = GetComponent<Rigidbody>();
}
public bool isGrabbing(PlayerGrabbable test)
{
return (grabbing == test);
}
