Improvement to the playAnim function (#776)

* Improvement to the playAnim function

* dont mind me

---------

Co-authored-by: ⍚~Nex <87421482+NexIsDumb@users.noreply.github.com>

Author: chronicsilly

source/funkin/game/PlayState.hx

@@ -1640,7 +1640,7 @@ class PlayState extends MusicBeatState
 			case "Play Animation":
 				if (strumLines.members[event.params[0]] != null && strumLines.members[event.params[0]].characters != null)
 					for (char in strumLines.members[event.params[0]].characters)
-						if (char != null) char.playAnim(event.params[1], event.params[2], event.params[3] == "NONE" ? null : event.params[3]);
+						if (char != null && char.hasAnim(event.params[1])) char.playAnim(event.params[1], event.params[2], event.params[3] == "NONE" ? null : event.params[3]);
 			case "Unknown": // nothing
 		}
 	}
@@ -2241,4 +2241,4 @@ class CamPosData {
 		pos.put();
 		pos = null;
 	}
-}
+}