import pygame, time
from sys import exit
pygame.init()
pygame.font.init()
clock = pygame.time.Clock()
font = pygame.font.SysFont("Arial", 18)
def update_fps():
fps = str(int(clock.get_fps()))
fps_text = font.render(fps, 1, pygame.Color("coral"))
return fps_text
# Game Variables / Functions
screen_width = 1068
screen_height = 628
screen = pygame.display.set_mode((screen_width, screen_height))
original_player_pos = (50, 500)
original_player_size = (40, 60)
FPS = 69
gravity = 0
jump_force = 15
player_speed_right = 10
player_speed_left = 10
ground_grip = True
can_jump = True
# Player
class player():
player_surf = pygame.image.load("Graphics\player_idle.png").convert_alpha()
player = player_surf.get_rect(topleft=(original_player_pos))
class background():
sky_surf = pygame.image.load("Graphics\Sky.png")
sky_surf = pygame.transform.scale(sky_surf, (screen_width * 2, screen_height * 2))
sky = sky_surf.get_rect(topleft=(0, -screen_height))
class surfaces():
main_platform_surf = pygame.image.load("Graphics\main_ground.png")
main_platform = main_platform_surf.get_rect(topleft=(0, screen_height - main_platform_surf.get_height() + (main_platform_surf.get_height()) / 2))
# Game Engine Functions
def y_movement():
global gravity, ground_grip,can_jump
gravity += 1
player().player.y += gravity
if ground_grip == True:
if player().player.colliderect(surfaces().main_platform):
player().player.y = surfaces().main_platform.y - original_player_size[1]
if not player().player.colliderect(surfaces().main_platform) and player().player.y < surfaces().main_platform.y - original_player_size[1]:
can_jump = False
else:
can_jump = True
def x_movement():
keys = pygame.key.get_pressed()
if keys[pygame.K_RIGHT] or keys[pygame.K_d]:
player().player.x += player_speed_right
return "Right"
if keys[pygame.K_LEFT] or keys[pygame.K_a]:
player().player.x -= player_speed_left
return "Left"
def draw(surface, rect):
screen.blit(surface, rect)
def jump():
global gravity
gravity = -jump_force
# Game Engine
while True:
update_fps()
screen.fill("black")
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_SPACE and can_jump == True:
ground_grip = False
if ground_grip == False:
jump()
ground_grip = True
x_movement()
y_movement()
draw(background().sky_surf, background().sky)
draw(surfaces().main_platform_surf, surfaces().main_platform)
draw(player().player_surf, player().player)
draw(update_fps(), (10,0))
clock.tick(FPS)
pygame.display.update()
Please try the code above out yourself, if you don't mind add some graphics to replace the pygame.image.load() or just replace it with a blank surface. When you run the program you see the main character and stuff, you can move around using WASD or arrow keys. Feel free to move around some stuff. Till now there is not a problem right? Now what I want you to do is stand still for 10 seconds (might happen sooner or later than that, should be around 10 seconds tho). When you stand still you will see the player sprite that you were moving around earlier literally just disappear. Now exit the program and add
print(player().player.y)
you will see the current player y location. Wait till the player dissapeares, and once it does, look at the y location that's gonna be printed out in your terminal. It will rapidly increase.
I tried 2 things. I added a variable that tries to grip the player into the ground if the player.y is over 0. It did not help and the player goes down anyways. I tried adding a variable that decides when the player can jump (because the y movement is linked directly to gravity and jumping) to decide when the player can jump. I was expecting the player sprite to just stay where it is.
