refactor: move car rendering to Car

src/car.py

@@ -1,4 +1,8 @@
 from math import radians
+
+import pygame
+
+from src.camera import Camera
 from src.vec import Vec
 
 
@@ -6,6 +10,9 @@ class Car:
     MAX_SPEED = 0.05
     MAX_BACK_SPEED = -0.025
     ROTATE_SPEED = radians(1)
+    COLOR = (230, 150, 80)
+    WIDTH = 0.4
+    LENGTH = 0.6
 
     def __init__(self, pos: Vec, direction: Vec) -> None:
         self.pos: Vec = pos
@@ -40,3 +47,18 @@ class Car:
         self.speed *= 0.98
 
         self.pos += self.direction * self.speed
+
+    def render(self, surf: pygame.Surface, camera: Camera):
+        pts: list[Vec] = self.get_corners()
+        pts = [camera.world2screen(p) for p in pts]
+        pygame.draw.polygon(surf, self.COLOR, pts)
+
+    def get_corners(self) -> list[Vec]:
+        u: Vec = self.direction * self.LENGTH / 2
+        v: Vec = self.direction.perp * self.WIDTH / 2
+        pt: Vec = self.pos
+        p1: Vec = pt + u + v
+        p2: Vec = pt - u + v
+        p3: Vec = pt - u - v
+        p4: Vec = pt + u - v
+        return [p1, p2, p3, p4]

src/game.py

@@ -60,24 +60,12 @@ class Game:
     def render(self):
         self.win.fill(self.BACKGROUND_COLOR)
         self.track.render(self.win, self.camera)
-        self.render_car()
+        self.car.render(self.win, self.camera)
         if self.show_fps:
             self.render_fps()
 
         pygame.display.flip()
 
-    def render_car(self):
-        u: Vec = self.car.direction * 0.3
-        v: Vec = self.car.direction.perp * 0.2
-        pt: Vec = self.car.pos
-        p1: Vec = pt + u + v
-        p2: Vec = pt - u + v
-        p3: Vec = pt - u - v
-        p4: Vec = pt + u - v
-        pts: list[Vec] = [p1, p2, p3, p4]
-        pts = [self.camera.world2screen(p) for p in pts]
-        pygame.draw.polygon(self.win, (230, 150, 80), pts)
-
     def on_key_down(self, event: pygame.event.Event):
         if event.key == pygame.K_w:
             self.car.forward = True