Added despawning when out of bounds

Assets/Scripts/FruitBehaviour.cs

@@ -0,0 +1,59 @@
+using PashaBibko.Pacore.Attributes;
+using UnityEngine;
+
+public class FruitBehaviour : MonoBehaviour
+{
+    [Header("References")]
+    [SerializeField] private RectTransform RectTransform;
+    [SerializeField] private Rigidbody2D Body2D;
+
+    [Header("Read only")]
+    [InspectorReadOnly, SerializeField] private Canvas AttachedCanvas;
+    [InspectorReadOnly, SerializeField] private bool EnteredCanvas;
+
+    public void InitFruitBehaviour(Canvas canvas)
+    {
+        AttachedCanvas = canvas;
+        EnteredCanvas = false;
+        
+        Body2D.velocity = Random.insideUnitCircle * 2.5f;
+    }
+
+    private static bool IsWithinCanvas(RectTransform element, RectTransform canvas)
+    {
+        Vector3[] elementCorners = new Vector3[4];
+        Vector3[] canvasCorners = new Vector3[4];
+        
+        element.GetWorldCorners(elementCorners);
+        canvas.GetWorldCorners(canvasCorners);
+
+        Rect bounds = new
+        (
+            canvasCorners[0].x,
+            canvasCorners[0].y,
+            canvasCorners[2].x - canvasCorners[0].x,
+            canvasCorners[2].y - canvasCorners[0].y
+        );
+
+        foreach (Vector3 corner in elementCorners)
+        {
+            if (bounds.Contains(corner))
+            {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    private void FixedUpdate()
+    {
+        bool contained = IsWithinCanvas(RectTransform, AttachedCanvas.GetComponent<RectTransform>());
+        EnteredCanvas = EnteredCanvas || contained;
+        
+        if (!contained && EnteredCanvas)
+        {
+            Destroy(gameObject);
+        }
+    }
+}