Differences

This shows you the differences between two versions of the page.

--- raycasthit2d [2021/05/05 06:57]
andrew900460 created
+++ raycasthit2d [2021/05/05 16:57] (current)
uninomiconadmin
@@ Line 1: / Line 1: @@
-''RaycastHit2D'' can be used in an if statement to tell if the raycast hit anything, or if it hit nothing.
+====== RaycastHit2D ======
-Example:
+==== Casts Implicitly To a Bool ====
-<code>
+RaycastHit2D implements the C# [[https://forum.unity.com/threads/c-beginner-tips-1-your-friend-the-implicit-bool.185761/|implicit bool]] operator. This allows it to be used in an if statement to check whether a hit is found.
+<code csharp>
+public static implicit operator bool(RaycastHit2D hit) => (Object) hit.collider != (Object) null;
+</code>
+++++ Example |
+<code c#>
 RaycastHit2D hit = Physics2D.Raycast(someStartPoint, someDirection);
@@ Line 9: / Line 14: @@
 }
 </code>
+This is also valid:
+<code c#>
+RaycastHit2D hit = Physics2D.Raycast(someStartPoint, someDirection);
+bool rayHitSomthing = hit;
+</code>
+++++

Uninomicon