refactor: improve keyboard input logic

tetris/util.py

@@ -1,6 +1,6 @@
 import yaml
 import pygame
-from typing import Tuple
+from typing import KeysView, Tuple
 
 """
     TODO description
@@ -83,4 +83,23 @@ class TextGenerator:
         for char_ in text:
             if not char_.isspace():
                 surface.blit(cls.sheet, (position[0] + x_position, position[1]), pygame.Rect(cls.characters[char_.upper()], (cls.glyph_size[0], cls.glyph_size[1])))
-            x_position += cls.glyph_size[0]
+            x_position += cls.glyph_size[0]
+
+
+"""
+    TODO description
+"""
+class Controller:
+
+    keys_pressed = {}
+
+    @classmethod
+    def key_down(cls, key: int) -> bool:
+        prior_pressed_state = False if key not in cls.keys_pressed else cls.keys_pressed[key]
+        cls.keys_pressed[key] = pygame.key.get_pressed()[key]
+
+        return cls.keys_pressed[key] and not prior_pressed_state
+
+    @classmethod
+    def key_pressed(cls, key: int) -> bool:
+        return pygame.key.get_pressed()[key]