feat: draw track borders

src/game.py

@@ -49,8 +49,19 @@ class Game:
     def render(self):
         self.win.fill(self.BACKGROUND_COLOR)
         road: Road = self.track.objects[0]  # type: ignore
+
+        side1: list[Vec] = []
+        side2: list[Vec] = []
+
         for i, pt in enumerate(road.pts):
-            pos: Vec = self.camera.world2screen(pt.pos)
-            col: float = i * 10 + 150
-            pygame.draw.circle(self.win, (col, 100, 100), pos, 5)
+            p1: Vec = pt.pos
+            p2: Vec = p1 + pt.normal * pt.width
+            p3: Vec = p1 - pt.normal * pt.width
+            side1.append(self.camera.world2screen(p2))
+            side2.append(self.camera.world2screen(p3))
+            col: tuple[float, float, float] = (i * 10 + 150, 100, 100)
+            pygame.draw.circle(self.win, col, self.camera.world2screen(p1), 5)
+
+        pygame.draw.lines(self.win, (255, 255, 255), True, side1)
+        pygame.draw.lines(self.win, (255, 255, 255), True, side2)
         pygame.display.flip()

src/track.py

@@ -41,9 +41,9 @@ class Track:
 
 
 class RoadPoint:
-    def __init__(self, pos: Vec, direction: Vec, width: float) -> None:
+    def __init__(self, pos: Vec, normal: Vec, width: float) -> None:
         self.pos: Vec = pos
-        self.direction: Vec = direction
+        self.normal: Vec = normal.normalized
         self.width: float = width
 
     @staticmethod