How do you properly implement gravity to a free floating space object and some sort of friction when thrusting in opposite direction

by

When you press UP you don’t have to change the speed, but you have to set the acceleration:

self.vel = vec(PLAYER_SPEED, 0).rotate(-self.rot)

self.acc += vec(PLAYER_ACC, 0).rotate(-self.rot)

Add the acceleration to the velocity:

self.vel += self.acc

I recommend limiting the maximum. However, I recommend doing this separately for each direction:

max_vel = 2
self.vel[0] = max(-max_vel, min(max_vel, self.vel[0]))
self.vel[1] = max(-max_vel, min(max_vel, self.vel[1]))

Apply this to the method get_keys:

class Player(pg.sprite.Sprite):
    # [...]

    def get_keys(self):
        self.rot_speed = 0
        self.acc = vec(0, PLAYER_GRAV)
        keys = pg.key.get_pressed()
        if keys[pg.K_LEFT]:
            self.rot_speed = PLAYER_ROT_SPEED
        if keys[pg.K_RIGHT]:
            self.rot_speed = -PLAYER_ROT_SPEED
        if keys[pg.K_UP]:
            self.acc += vec(PLAYER_ACC, 0).rotate(-self.rot)
        if keys[pg.K_SPACE]:
            self.shoot()
        self.vel += self.acc + self.vel * PLAYER_FRICTION
        max_vel = 2
        self.vel[0] = max(-max_vel, min(max_vel, self.vel[0]))
        self.vel[1] = max(-max_vel, min(max_vel, self.vel[1]))
        self.pos += self.vel

More Related Contents:

  1. Pygame mouse clicking detection
  2. How can I make a sprite move when key is held down
  3. Add scrolling to a platformer in pygame
  4. Spawning multiple instances of the same object concurrently in python
  5. Pygame unresponsive display [duplicate]
  6. Why is my pygame application loop not working properly? [duplicate]
  7. Pyinstaller Unable to access Data Folder
  8. Does PyGame do 3d?
  9. Why does it say that module pygame has no init member?
  10. jumping too fast?
  11. How can one continuously generate and track several random objects with a time delay in pygame? [duplicate]
  12. Why doesn’t PyGame draw in the window before the delay or sleep?
  13. How do I create animated sprites using Sprite Sheets in Pygame?
  14. What is the difference between .quit and .QUIT in pygame
  15. Pygame Display Position
  16. How to display text in pygame? [duplicate]
  17. Reset and restart pygame program doesn’t work
  18. Pygame.movie missing [duplicate]
  19. How to move Sprite in Pygame
  20. Displaying unicode symbols using pygame
  21. Scale Everything On Pygame Display Surface
  22. How do I get the snake to grow and chain the movement of the snake’s body?
  23. How to move the player across a one background image?
  24. How can I do a double jump in pygame?
  25. Installing Pygame for Mac OS X 10.6.8
  26. How do I focus light or how do I only draw certain circular parts of the window in pygame?
  27. How do I make the screen ignore the background color of some image?
  28. Changing colour of a surface without overwriting transparency
  29. What is the difference between super() with arguments and without arguments?
  30. How do I change the volume of the sound or music in PyGame?

Leave a Comment