Interactable Class

Assets/Scripts/Interactable.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public abstract class Interactable : MonoBehaviour
+{
+    public enum InteractionType //Interaction Types (Enum hei<65>t enumeration also Aufz<66>hlung)
+    {
+        Click,
+        Hold
+    }
+
+    public InteractionType interactionType;
+
+    public abstract string GetDescription();
+    public abstract void Interact();
+
+}

Assets/Scripts/Interactable.cs.meta

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Assets/Scripts/LightSwitch.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class LightSwitch : Interactable
+{
+    public Light m_Light;
+    public bool isOn;
+
+    private void Start()
+    {
+        UpdateLight();
+    }
+
+    private void UpdateLight()
+    {
+        m_Light.enabled = isOn;
+    }
+
+    public override string GetDescription()
+    {
+        if (isOn)
+        {
+            return "Press [E] to turn <color=red>off</color> the light.";
+        }
+        return "Press [E] to turn <color=green>on</color> the light.";
+    }
+
+    public override void Interact()
+    {
+        isOn = !isOn;
+        Debug.Log("Click Light");
+        UpdateLight();
+    }
+}

Assets/Scripts/LightSwitch.cs.meta

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Assets/Scripts/PlayerInteraction.cs

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+using UnityEngine;
+
+public class PlayerInteraction : MonoBehaviour
+{
+
+    public float interactionDistance;
+
+    public TMPro.TextMeshProUGUI interactionText;
+
+    Camera cam;
+
+    void Start()
+    {
+        cam = Camera.main;
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        Ray ray = cam.ScreenPointToRay(new Vector3(Screen.width / 2f, Screen.height / 2f, 0f));
+        RaycastHit hit;
+
+        bool successfulHit = false;
+
+        if (Physics.Raycast(ray, out hit, interactionDistance))
+        {
+            Interactable interactable = hit.collider.GetComponent<Interactable>();
+
+            if (interactable != null)
+            {
+                HandleInteraction(interactable);
+                interactionText.text = interactable.GetDescription();
+                successfulHit = true;
+            }
+        }
+
+        // if we miss, hide the UI
+        if (!successfulHit)
+        {
+            interactionText.text = "";
+        }
+    }
+
+    void HandleInteraction(Interactable interactable)
+    {
+        switch (interactable.interactionType)
+        {
+            case Interactable.InteractionType.Click:
+                // interaction type is click and we clicked the button -> interact
+                if (Input.GetButtonDown("Interact"))
+                {
+                    Debug.Log("INTERACT");
+                    interactable.Interact();
+                }
+                break;
+           
+            default:
+                throw new System.Exception("Unsupported type of interactable.");
+        }
+    }
+}

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