From 427e34607d9fa7c5287b32b54659683ce28c199b Mon Sep 17 00:00:00 2001
From: Anthony Calosa <anthonycalosa@gmail.com>
Date: Wed, 15 Apr 2020 13:43:58 +0800
Subject: [PATCH] Prevent EmptyStackException

---
 forge-gui-mobile/src/forge/Graphics.java | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/forge-gui-mobile/src/forge/Graphics.java b/forge-gui-mobile/src/forge/Graphics.java
index 366eecc54bf..e285e98c0f4 100644
--- a/forge-gui-mobile/src/forge/Graphics.java
+++ b/forge-gui-mobile/src/forge/Graphics.java
@@ -635,8 +635,10 @@ public class Graphics {
 
     public void endTransform() {
         batch.end();
-        batch.getTransformMatrix().set(transforms.pop());
-        shapeRenderer.setTransformMatrix(batch.getTransformMatrix());
+        if (!transforms.empty()) { //??? EmptyStackException encountered on mobile
+            batch.getTransformMatrix().set(transforms.pop());
+            shapeRenderer.setTransformMatrix(batch.getTransformMatrix());
+        }
         batch.begin();
     }