first push 2

Assets/Scripts/Item/CarryableItem.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[RequireComponent(typeof(Collider))]
+[RequireComponent(typeof(Rigidbody))]
+public abstract class CarryableItem : MonoBehaviour
+{
+    [SerializeField]
+    private string itemName;
+    public string ItemName { get { return this.itemName; } }
+    [SerializeField]
+    private int itemSize = 1;
+    public int ItemSize { get { return this.itemSize; } }
+
+}

Assets/Scripts/Item/CarryableItem.cs.meta

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Assets/Scripts/Item/HeavyInteractableItem.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class HeavyInteractableItem : InteractableItem
+{
+    // Start is called before the first frame update
+    void Start()
+    {
+        
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        
+    }
+    public void DisableAll()
+    {
+        this.GetComponent<Collider>().enabled = false;
+    }
+    public void EnableAll()
+    {
+        this.GetComponent<Collider>().enabled = true;
+    }
+    
+    private void FixedUpdate()
+    {
+        BaseFixedUpdate();
+        //print("Alpha Target:"+ base.target_alpha);
+    }
+}

Assets/Scripts/Item/HeavyInteractableItem.cs.meta

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Assets/Scripts/Item/InteractableItem.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using TMPro;
+using UnityEngine.UI;
+
+
+[RequireComponent(typeof(Collider))]
+[RequireComponent(typeof(Rigidbody))]
+public class InteractableItem : CarryableItem
+{
+   
+
+    [SerializeField]
+    private Canvas interactionCanvas;
+    private TMP_Text[] interaction_texts;
+    private Image[] interaction_images;
+    protected float target_alpha = 0;
+    [SerializeField]
+    protected bool canPickup = false;
+    protected bool isEnabled = false;
+
+    public bool CanPickup { get { return canPickup; } }
+    public bool IsEnabled { get { return isEnabled; } }
+
+    public void Enable()
+    {
+        print("Enabled!");
+        interactionCanvas.transform.LookAt((GameObject.FindGameObjectWithTag("MainCamera").transform.position));
+        interactionCanvas.transform.Rotate(0, 180, 0);
+        target_alpha = 1;
+        isEnabled = true;
+    }
+    
+    public void Disable()
+    {
+        print("Disabled!");
+        target_alpha = 0;
+        isEnabled = true;
+    }
+    public void Interact()
+    {
+        
+    }
+    protected void BaseAwake()
+    {
+        interaction_texts = interactionCanvas.GetComponentsInChildren<TMP_Text>();
+        interaction_images = interactionCanvas.GetComponentsInChildren<Image>();
+        foreach (TMP_Text text in interaction_texts)
+        {
+            text.color = new Color(text.color.r, text.color.g, text.color.b, 0);
+        }
+        foreach (Image image in interaction_images)
+        {
+            image.color = new Color(image.color.r, image.color.g, image.color.b, 0);
+        }
+    }
+    protected void BaseFixedUpdate()
+    {
+        foreach (TMP_Text text in interaction_texts)
+        {
+            text.color = Color.Lerp(new Color(text.color.r, text.color.g, text.color.b, text.color.a), new Color(text.color.r, text.color.g, text.color.b, target_alpha), 10 * Time.deltaTime);
+        }
+        foreach (Image image in interaction_images)
+        {
+            image.color = Color.Lerp(new Color(image.color.r, image.color.g, image.color.b, image.color.a), new Color(image.color.r, image.color.g, image.color.b, target_alpha), 10 * Time.deltaTime);
+        }
+    }
+
+    private void Awake()
+    {
+        BaseAwake();
+    }
+    private void FixedUpdate()
+    {
+        BaseFixedUpdate();
+    }
+}

Assets/Scripts/Item/InteractableItem.cs.meta

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Assets/Scripts/Item/KeyItem.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class KeyItem : InteractableItem
+{
+    [SerializeField]
+    private string keyName;
+    public string KeyName { get { return keyName; } }
+
+
+    private void Awake()
+    {
+        BaseAwake();
+    }
+    private void Start()
+    {
+        
+    }
+}

Assets/Scripts/Item/KeyItem.cs.meta

@@ -0,0 +1,11 @@
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