fix ducked up physics

main.py

@@ -409,8 +409,10 @@ async def level_loop():
     damage.fill((20, 0, 0, 30))
     time_started = None
     won = False
+    dt = 1/config.BASE_FPS
     lose_played = False
     lose = pygame.mixer.Sound("assets/sounds/lose.ogg")
+
     while state == "level":
         for event in pygame.event.get():
             if event.type == pygame.QUIT:
@@ -436,7 +438,7 @@ async def level_loop():
 
         # LOGIC
         if player.run:
-            player.update((pygame.time.get_ticks() - time_started) / 1000)
+            player.update(dt)
 
         # RENDER
         player.draw(game)

player.py

@@ -84,8 +84,8 @@ def update(self, dt):
                     if self.vel_y < config.VELOCITY_Y_DURING_DAMAGE:
                         self.vel_y = float(config.VELOCITY_Y_DURING_DAMAGE)
             if not self.collide:
-                self.vel_y -= self.level.gravity / config.BASE_FPS
-            self.rect.y -= self.vel_y / config.BASE_FPS
+                self.vel_y -= self.level.gravity * dt / 1000
+            self.rect.y -= self.vel_y * dt / 1000
             if self.rect.y >= self.floor:
                 self.rect.y = self.floor
                 self.vel_y = 0
@@ -128,7 +128,7 @@ def update(self, dt):
         # move stars and delete the ones out of screen
         if self.run and self.level.obstacles:
             for index, star in enumerate(self.stars):
-                star[0] -= 1
+                star[0] -= dt / 10
                 if star[0] < -5:
                     del self.stars[index]
             # every time half of the stars are deleted, new ones are added