Max HP update for PlayState

Author: Yuta12342

source/archipelago/APItem.hx

@@ -203,6 +203,9 @@ class APItem {
                     maxHPUp++;
                     trace("Max HP increased! Current max HP: " + maxHPUp);
                     popup('Current Max HP: +$maxHPUp', "You got a max HP up!");
+                    if (APPlayState.APInstance() != null) {
+                        APPlayState.APInstance().MaxHP += 0.5;
+                    }
                 }, true, true);
             case "Tutorial Trap":
                 return new APItem(name, ConditionHelper.PlayState(), function() {

source/archipelago/APPlayState.hx

@@ -2010,9 +2010,11 @@ class APPlayState extends PlayState {
         resyncVocals();
     }
 
-    public function APInstance()
+    public static function APInstance()
     {
-        return instance;
+        if (instance != null)
+            return instance;
+        return null;
     }
 
     override public function endSong():Bool