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Assets/Scripts/Portals/PortalBack.cs

@@ -0,0 +1,10 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class PortalBack : MonoBehaviour
+{
+    [SerializeField] PortalManager m_Manager;
+
+    // private void OnCollisionEnter(Collision collision) => m_Manager.ForceTeleport();
+}

Assets/Scripts/Portals/PortalBack.cs.meta

@@ -0,0 +1,11 @@
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+guid: 859e4c4c9b11c654a8ab3891fbd8c5b3
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Portals/PortalManager.cs

@@ -18,7 +18,7 @@ public class PortalManager : MonoBehaviour
     // Private variables //
 
     PortalManager m_OtherManager;
-    PortalCamera m_PortalCamera;
+    [SerializeField] PortalCamera m_PortalCamera;
 
     // Gets the other end of the portal
     public PortalManager Linked() => m_OtherManager;
@@ -52,6 +52,23 @@ public class PortalManager : MonoBehaviour
         m_PlayerPoint.position = CameraController.Instance().transform.position;
     }
 
+    public void ForceTeleport()
+    {
+        // Calculates if the player is going towards the portal
+        Vector3 difference = PlayerMovement.Pos() - transform.position;
+
+        // Rotates the player
+        float rotDif = -Quaternion.Angle(transform.rotation, m_OtherManager.transform.rotation) + m_AngleDif;
+        CameraController.Instance().RotatePlayerDirection(new Vector2(0f, rotDif));
+
+        // Tellss the player it went through a portal
+        PlayerMovement.Instance().WentThroughPortal(rotDif);
+
+        // Teleports the player
+        Vector3 offset = Quaternion.Euler(0f, rotDif, 0f) * difference;
+        PlayerMovement.SetPos(m_OtherManager.transform.position + offset - new Vector3(0, 1.0f, 0));
+    }
+
     // When something enters the portal
     private void OnTriggerEnter(Collider other)
     {