Refactor keybindings configuration and remove obsolete JSON files

units/mine.py

@@ -26,9 +26,8 @@ class Mine(Unit):
         """Mine explodes, killing the rat and destroying itself."""
         if not self.armed:
             return
-            
-        print("MINE EXPLOSION!")
-        self.game.render_engine.play_sound("BOMB.WAV")
+
+        self.game.render_engine.play_sound("POISON.WAV")
 
         # Kill the rat that stepped on the mine
         if victim_rat.id in self.game.units:
@@ -43,7 +42,7 @@ class Mine(Unit):
             return
             
         # Use mine asset
-        image = self.game.assets["mine"]
+        image = self.game.assets["BMP_POISON"]
         image_size = self.game.render_engine.get_image_size(image)
         
         # Center the mine in the cell
@@ -55,5 +54,4 @@ class Mine(Unit):
     def die(self, score=None):
         """Remove mine from game and disarm it."""
         self.armed = False
-        Explosion(self.game, self.position).draw()
         super().die(score)