From 8267e4168db28fec7418cdc5a289ab63b31460f4 Mon Sep 17 00:00:00 2001
From: Alex Yatskov <alex@foosoft.net>
Date: Tue, 20 May 2014 08:19:47 +0900
Subject: [PATCH] Hide preview tetrad when spawning a new one

---
 tetris.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tetris.py b/tetris.py
index 77b1b0b..8cdc8cc 100755
--- a/tetris.py
+++ b/tetris.py
@@ -314,6 +314,7 @@ class Game:
 
         self.tetrad = self.tetrad_next.centered(self.board.grid_dims[0])
         self.tetrad_next = Tetrad.random()
+        self.tetrad_preview = None
 
         if not self.try_placement(self.tetrad):
             self.end_game()