v2.0.1: added some safety checks for windows rendering on actor thread

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/potions/exotic/PotionOfDragonsBreath.java

@@ -23,6 +23,7 @@ package com.shatteredpixel.shatteredpixeldungeon.items.potions.exotic;
 
 import com.shatteredpixel.shatteredpixeldungeon.Assets;
 import com.shatteredpixel.shatteredpixeldungeon.Dungeon;
+import com.shatteredpixel.shatteredpixeldungeon.ShatteredPixelDungeon;
 import com.shatteredpixel.shatteredpixeldungeon.actors.Actor;
 import com.shatteredpixel.shatteredpixeldungeon.actors.Char;
 import com.shatteredpixel.shatteredpixeldungeon.actors.blobs.Blob;
@@ -90,6 +91,9 @@ public class PotionOfDragonsBreath extends ExoticPotion {
 
 			if (cell == null && identifiedByUse){
 				showingWindow = true;
+				ShatteredPixelDungeon.runOnRenderThread(new Callback() {
+					@Override
+					public void call() {
 						GameScene.show( new WndOptions(new ItemSprite(PotionOfDragonsBreath.this),
 								Messages.titleCase(name()),
 								Messages.get(ExoticPotion.class, "warning"),
@@ -110,6 +114,8 @@ public class PotionOfDragonsBreath extends ExoticPotion {
 							}
 							public void onBackPressed() {}
 						} );
+					}
+				});
 			} else if (cell == null && !anonymous){
 				curItem.collect( curUser.belongings.backpack );
 			} else if (cell != null) {

core/src/main/java/com/shatteredpixel/shatteredpixeldungeon/items/wands/CursedWand.java

@@ -382,6 +382,10 @@ public class CursedWand {
 						//Don't bother doing this joke to none-english speakers, I doubt it would translate.
 						return cursedEffect(origin, user, targetPos);
 					} else {
+						ShatteredPixelDungeon.runOnRenderThread(
+								new Callback() {
+									@Override
+									public void call() {
 										GameScene.show(
 												new WndOptions(Icons.get(Icons.WARNING),
 														"CURSED WAND ERROR",
@@ -401,6 +405,9 @@ public class CursedWand {
 													}
 												}
 										);
+									}
+								}
+						);
 						return false;
 					}
 				} catch(IOException e){