Aggiungi gestione dei controlli da tastiera e migliora la logica di spawn delle unità

engine/controls.py

@@ -0,0 +1,38 @@
+# This file contains the Controls class, which is responsible for handling user input.
+# The key_pressed method is called when a key is pressed, and it contains the logic for handling different key presses.
+
+import random
+
+class KeyBindings:
+    def key_pressed(self, key, coords=None):
+    
+        #print(key)
+        if key == "Q" or key == 12:
+            self.engine.close()
+        elif key == "Return" or key == 13:
+            self.new_rat()
+        elif key == "D":
+            if self.units:
+                self.units[random.choice(list(self.units.keys()))].die()
+        elif key == "M":
+            self.audio = not self.audio
+        elif key == "F":
+            self.full_screen = not self.full_screen
+            self.engine.full_screen(self.full_screen)
+        elif key == "Up" or key == 8:
+            self.start_scrolling("Up")
+        elif key == "Down" or key == 9:
+            self.start_scrolling("Down")
+        elif key == "Left" or key == 10:
+            self.start_scrolling("Left")
+        elif key == "Right" or key == 11:
+            self.start_scrolling("Right")
+        elif key == "Space" or key == 1:
+            self.play_sound("PUTDOWN.WAV")
+            self.spawn_bomb(self.pointer)
+        elif key == "UpRelease" or key == "DownRelease" or key == "LeftRelease" or key == "RightRelease":
+            self.stop_scrolling()
+        # elif key == "mouse":
+        #     adjusted_coords = (coords[0]//self.cell_size*2, coords[1]//self.cell_size*2)
+        #     self.pointer = adjusted_coords
+        #     self.scroll_cursor()