private void Update()
{
Vector2 mousePos = camera.ScreenToWorldPoint(Input.mousePosition);
RaycastHit2D hit = Physics2D.Raycast(mousePos, Vector2.zero, float.MaxValue, connectionLayer);
Cursors cursor = Cursors.Pointer;
if (currentPoint)
{
cursor = Cursors.Welder;
}
if (hit.collider)
{
ConnectionPoint point = hit.collider.GetComponent <ConnectionPoint>();
if (point)
{
if (Vector2.Distance(hit.point, transform.position) <= maxDistance)
{
if (point.connected)
{
// Occupied
// Should never happen
}
else
{
// If we're conenction 2 points
if (currentPoint)
{
// If it's the same point / object
if (point == currentPoint || point.physicsObject == currentPoint.physicsObject)
{
cursor = Cursors.WelderOutOfRange;
if (Input.GetButtonDown("Weld"))
{
// Cancel
currentPoint.UpdateVissibility();
currentPoint = null;
}
}
else
{
// If it's in range
if (Vector3.Distance(point.transform.position, currentPoint.transform.position) <= maxDistance)
{
cursor = Cursors.Welder;
if (Input.GetButtonDown("Weld"))
{
currentPoint.connected = point;
point.connected = currentPoint;
currentPoint.UpdateVissibility(false);
point.UpdateVissibility(false);
Transform a = currentPoint.physicsObject.transform;
Transform b = point.physicsObject.transform;
float rotZ = point.transform.rotation.eulerAngles.z + 180f - currentPoint.transform.rotation.eulerAngles.z;
a.transform.rotation = Quaternion.Euler(0, 0, rotZ);
a.transform.position = point.transform.position - (currentPoint.transform.position - a.transform.position);
var joint = a.gameObject.AddComponent <HingeJoint2D>();
joint.connectedBody = b.GetComponent <Rigidbody2D>();
joint.enableCollision = true;
joint.autoConfigureConnectedAnchor = false;
joint.anchor = a.InverseTransformPoint(currentPoint.transform.position);
joint.connectedAnchor = b.InverseTransformPoint(point.transform.position);
/*joint.useLimits = true;
* JointAngleLimits2D limits = new JointAngleLimits2D
* {
* min = 0f,
* max = 0f
* };
* joint.limits = limits;*/
currentPoint = null;
}
}
else
{
cursor = Cursors.WelderOutOfRange;
if (Input.GetButtonDown("Weld"))
{
// Out of range
currentPoint.UpdateVissibility();
currentPoint = null;
}
}
}
}
// Selecting the first point
else
{
cursor = Cursors.Welder;
if (Input.GetButtonDown("Weld"))
{
currentPoint = point;
currentPoint.UpdateVissibility(false);
}
}
}
}
else
{
cursor = Cursors.WelderOutOfRange;
}
}
}
else if (currentPoint && Vector2.Distance(hit.point, transform.position) > maxDistance)
{
cursor = Cursors.WelderOutOfRange;
}
// Click to cancel
if (Input.GetButtonDown("CancelWeld") && currentPoint)
{
currentPoint.UpdateVissibility();
currentPoint = null;
}
CursorManager.SetCursor(cursor);
}