83 lines
2.9 KiB
C#
83 lines
2.9 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using UnityEngine;
|
|
|
|
namespace Escape_Room_Engine.Portal
|
|
{
|
|
[RequireComponent(typeof(Collider))]
|
|
public class Portal : MonoBehaviour
|
|
{
|
|
public static readonly Matrix4x4 HalfRotation = Matrix4x4.Rotate(Quaternion.Euler(0, 180, 0));
|
|
|
|
/// <summary>
|
|
/// The portal that is connected with this one.
|
|
/// </summary>
|
|
public Portal linkedPortal;
|
|
/// <summary>
|
|
/// The camera that will draw the view for this portal.
|
|
/// </summary>
|
|
public PortalCamera portalCamera;
|
|
|
|
private readonly List<PortalDriver> _closePortalDrivers = new();
|
|
|
|
private void Awake()
|
|
{
|
|
// check whether the other portal is set up
|
|
if (!linkedPortal || linkedPortal.linkedPortal != this) throw new Exception("Other portal not set up correctly.");
|
|
|
|
// check whether the collider is set up correctly
|
|
if (!GetComponent<Collider>().isTrigger) throw new Exception("Collider must be a trigger.");
|
|
}
|
|
|
|
private void FixedUpdate()
|
|
{
|
|
for (var i = 0; i < _closePortalDrivers.Count; i++)
|
|
{
|
|
var portalDriver = _closePortalDrivers[i];
|
|
if (portalDriver.entrySide < 0 && CalculateSide(portalDriver.transform) >= 0) // must have entered from the front and exited the back
|
|
{
|
|
StopTrackingDriver(portalDriver);
|
|
linkedPortal.StartTrackingDriver(portalDriver, -1);
|
|
portalDriver.Teleport(this, linkedPortal);
|
|
i--; // decrease the loop counter because the list is one element smaller now
|
|
}
|
|
}
|
|
}
|
|
|
|
private void StartTrackingDriver(PortalDriver portalDriver, int entrySide)
|
|
{
|
|
_closePortalDrivers.Add(portalDriver);
|
|
portalDriver.EnableClone(linkedPortal);
|
|
portalDriver.entrySide = entrySide;
|
|
}
|
|
|
|
private void StopTrackingDriver(PortalDriver portalDriver)
|
|
{
|
|
_closePortalDrivers.Remove(portalDriver);
|
|
portalDriver.DisableClone(linkedPortal);
|
|
}
|
|
|
|
private void OnTriggerEnter(Collider other)
|
|
{
|
|
var portalDriver = other.GetComponent<PortalDriver>();
|
|
if (portalDriver && !_closePortalDrivers.Contains(portalDriver))
|
|
{
|
|
StartTrackingDriver(portalDriver, CalculateSide(portalDriver.transform));
|
|
}
|
|
}
|
|
|
|
private void OnTriggerExit(Collider other)
|
|
{
|
|
var portalDriver = other.GetComponent<PortalDriver>();
|
|
if (portalDriver)
|
|
StopTrackingDriver(portalDriver);
|
|
}
|
|
|
|
private int CalculateSide(Transform portalDriverTransform)
|
|
{
|
|
var t = transform;
|
|
return Math.Sign(Vector3.Dot(t.forward, portalDriverTransform.position - t.position));
|
|
}
|
|
}
|
|
}
|