added some debugging tools

tools.py

@@ -0,0 +1,51 @@
+import pygame as pg
+from queue import Queue
+
+
+def _debug(fn):
+    def wrapper(self: 'Debug', *args, **kwargs):
+        if not self.enabled: return
+        fn(self, *args, **kwargs)
+    return wrapper
+
+class Debug:
+
+    def __init__(self, enabled=False):
+        self.enabled = enabled
+        self._screen = None
+        self._debug_queue = Queue()
+
+
+    def debug(self):
+        while not self._debug_queue.empty():
+            self._debug_queue.get()()
+
+    @_debug
+    def draw_lines(self, points) -> None:
+        def _draw_lines():
+            if len(points) > 1:
+                pg.draw.lines(
+                    self._screen,
+                    (255,0,255),
+                    False,
+                    points=points,
+                    width=3
+                )
+                for point in points:
+                    pg.draw.circle(
+                        self._screen,
+                        (255,0,255),
+                        point,
+                        2
+                    )
+            if len(points) > 0:
+                pg.draw.circle(
+                    self._screen,
+                    (255,0,255),
+                    points[0],
+                    2
+                )
+        self._debug_queue.put(_draw_lines)
+        
+
+debug = Debug()