Added blinking of deleted rows

ttrs.py

@@ -357,10 +357,24 @@ class TtrsGame():
                         to_remove.add(y)
 
                 if len(to_remove) > 0:
+                    to_delete = set()
                     for b in list(self.playground.blocks):
                         if b.pos.y in to_remove:
+                            to_delete.add(Block(b.pos, (255, 255, 255)))
                             self.playground.blocks.remove(b)
 
+                    for i in range(2):
+                        for b in to_delete:
+                            self.playground.blocks.add(b)
+                        for cb in self.tick_callbacks:
+                            cb()
+                        time.sleep(0.2)
+                        for b in to_delete:
+                            self.playground.blocks.remove(b)
+                        for cb in self.tick_callbacks:
+                            cb()
+                        time.sleep(0.2)
+
                     to_add = set()
                     for b in list(self.playground.blocks):
                         o = len(list(filter(lambda y: y > b.pos.y, to_remove)))
@@ -396,13 +410,6 @@ class TtrsGame():
                     pass
 
 
-
-
-
-        
-
-
-
 if __name__ == '__main__':
     w = 22
     h = 16