better turning and mask handling

game.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3.11
 import pygame
 from models import Car, Background, Track
-from util import load_image
+from util import load_image, limit
 
 class Window:
   def __init__(self, caption, size):
@@ -41,12 +41,12 @@ class Window:
     if pressed[pygame.K_DOWN]: self.car.speed -= 0.2
     if round(self.car.speed, 1) == 0.1: self.car.speed = 0
 
-    c = 5
-    a = c / (self.car.speed + 1)
+    a = 5 / (abs(self.car.speed) + 1)
     if self.car.speed == 0: a = 0
+    a = limit(a, 0, 3.5)
 
-    if pressed[pygame.K_LEFT]: self.car.angle += a
-    if pressed[pygame.K_RIGHT]: self.car.angle -= a
+    if pressed[pygame.K_LEFT] and round(self.car.speed, 2) > 0.55: self.car.angle += a
+    if pressed[pygame.K_RIGHT] and round(self.car.speed, 2) > 0.55: self.car.angle -= a
 
   def _process_game_logic(self):
     self.car.update()
@@ -54,7 +54,9 @@ class Window:
 
   def _draw(self):
     self.screen.fill((0, 0, 0))
-    self.background.draw(self.screen)
+    # self.background.draw(self.screen)
+    self.screen.blit(self.track.mask_image, (0, 0))
+    self.screen.blit(self.car.mask_image, self.car.mask_rect)
     self.car.draw(self.screen)
     pygame.display.flip()
     self.clock.tick(60)

models.py

@@ -33,6 +33,7 @@ class Car:
     
     self.mask = mask.from_surface(self.surface)
     self.mask_image = self.mask.to_surface()
+    self.mask_rect = self.mask_image.get_rect(center = self.rect.center)
 
     self.angle = 180
     self.speed = 0
@@ -44,12 +45,14 @@ class Car:
   def draw(self, window):
     self.rect.topleft = (int(self.x), int(self.y))
     rotated = rotate(self.surface, self.angle)
-    self.mask = mask.from_surface(rotated)
-    self.mask_image = self.mask.to_surface()
     surface_rect = self.surface.get_rect(topleft = self.rect.topleft)
     new_rect = rotated.get_rect(center = surface_rect.center)
     window.blit(rotated, new_rect.topleft)
 
+    self.mask = mask.from_surface(rotated)
+    self.mask_image = self.mask.to_surface()
+    self.mask_rect = self.mask_image.get_rect(center = surface_rect.center)
+
 class Track:
   def __init__(self, filename, location, size):
     self.image = load_image(filename).convert_alpha()
@@ -62,4 +65,4 @@ class Track:
 
   def detectCar(self, car: Car):
     if not self.mask.overlap(car.mask, (car.x, car.y)):
-      print('Off Track')
+      pass

util.py

@@ -15,3 +15,5 @@ def load_image(filename: str) -> Surface:
     raise Exception(f'Filepath not found: \'{path}\' cannot be found')
 
   return load(path)
+
+def limit(num, minimum=1, maximum=255): return max(min(num, maximum), minimum)