Setup and play area prefab

WizardDuelsProject/Assets/Scripts/Card.cs

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+using System;
+using UnityEngine;
+using UnityEngine.EventSystems;
+using UnityEngine.UIElements;
+using DG.Tweening;
+using UnityEngine.Serialization;
+
+public class Card : MonoBehaviour, IDragHandler, IBeginDragHandler, IEndDragHandler, IPointerEnterHandler, IPointerExitHandler, IPointerUpHandler, IPointerDownHandler
+{
+    [FormerlySerializedAs("moveSpeedLimit")]
+    [Header("Movement")] 
+    [SerializeField] private float moveDuration = .25f;
+    [Header("States")]
+    [SerializeField] private bool isHovering;
+    [SerializeField] public bool IsDragging;
+    [Header("Slots")]
+    [SerializeField] private GameObject slot;
+
+    [SerializeField] private CardArea parentArea;
+    [SerializeField] public CardArea HoveringArea;
+
+    public event Action PointerEnter;
+    public event Action PointerExit;
+
+    private Vector3 _grabOffset;
+
+    private void Update()
+    {
+        // ClampPosition();
+        
+        if (IsDragging)
+        {
+            Vector2 targetPosition = Camera.main.ScreenToWorldPoint(Input.mousePosition) - _grabOffset;
+            MoveTo(targetPosition);
+        }
+    }
+
+    // Sets the slot
+    public void SetSlot(GameObject slot)
+    {
+        this.slot = slot;
+    }
+
+    public void SetParentArea(CardArea cardArea)
+    {
+        parentArea = cardArea;
+    }
+    
+    private void ClampPosition()
+    {
+        Vector2 screenBounds = Camera.main.ScreenToWorldPoint(new Vector3(Screen.width, Screen.height, Camera.main.transform.position.z));
+        Vector3 clampedPosition = transform.position;
+        clampedPosition.x = Mathf.Clamp(clampedPosition.x, -screenBounds.x, screenBounds.x);
+        clampedPosition.y = Mathf.Clamp(clampedPosition.y, -screenBounds.y, screenBounds.y);
+        transform.position = new Vector3(clampedPosition.x, clampedPosition.y, 0);
+    }
+
+    private void MoveTo(Vector2 targetPosition)
+    {
+        transform.position = targetPosition;
+    }
+
+    private void SmoothMoveTo(Vector2 targetPosition)
+    {
+        transform.DOMove(targetPosition, moveDuration);
+    }
+     
+    public void OnDrag(PointerEventData eventData)
+    {
+        
+    }
+
+    public void OnBeginDrag(PointerEventData eventData)
+    {
+        Vector2 mousePosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);
+        _grabOffset = mousePosition - (Vector2)transform.position;
+        IsDragging = true;
+    }
+
+    public void OnEndDrag(PointerEventData eventData)
+    {
+        IsDragging = false;
+        if (HoveringArea != null)
+        {
+            parentArea.RemoveCardFromArea(this);
+            SetParentArea(HoveringArea);
+            HoveringArea.AddCardToArea(this);
+            HoveringArea = null;
+        }
+        MoveToSlot();
+    }
+
+    public void OnPointerEnter(PointerEventData eventData)
+    {
+        PointerEnter?.Invoke();
+    }
+
+    public void OnPointerExit(PointerEventData eventData)
+    {
+        PointerExit?.Invoke();
+    }
+
+    public void OnPointerUp(PointerEventData eventData)
+    {
+        
+    }
+
+    public void OnPointerDown(PointerEventData eventData)
+    {
+        
+    }
+
+    public void MoveToSlot()
+    {
+        SmoothMoveTo(slot.transform.position);
+    }
+}