I cannot find, what is wrong with background, even with debugger it is not doing nothing
#importing
from turtle import width
import pygame
#resolution
pygame.display.set_caption("Tanks")
WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
#background color (my problem)
def draw_window():
WIN.fill((255, 0, 0))
pygame.display.update()
#main functions
def main():
run = True
while run:
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
pygame.quit()
#game start
if __name__ == "__main__":
main()
You have to call draw_window in the application loop:
#importing
import pygame
#resolution
pygame.display.set_caption("Tanks")
WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
clock = pygame.time.Clock()
#background color (my problem)
def draw_window():
WIN.fill((255, 0, 0))
pygame.display.update()
#main functions
def main():
run = True
while run:
clock.tick(100)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
draw_window()
pygame.quit()
#game start
if __name__ == "__main__":
main()
The typical PyGame application loop has to:
limit the frames per second to limit CPU usage with pygame.time.Clock.tick
handle the events by calling either pygame.event.pump() or pygame.event.get().
update the game states and positions of objects dependent on the input events and time (respectively frames)
clear the entire display or draw the background
draw the entire scene (blit all the objects)
update the display by calling either pygame.display.update() or pygame.display.flip()
When you write a function, it is just some instructions on memory, it doesn't run unless you call it. This is the case. You write a set of instructions, draw_window, but you never call it. What you need to do is before the game loop, call draw_window. So the code would be something like this.
#importing
from turtle import width
import pygame
#resolution
pygame.display.set_caption("Tanks")
WIDTH, HEIGHT = 900, 500
WIN = pygame.display.set_mode((WIDTH, HEIGHT))
#background color (my problem)
def draw_window():
WIN.fill((255, 0, 0))
pygame.display.update()
#main functions
def main():
run = True
while run:
draw_window()
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
pygame.quit()
#game start :)
if __name__ == "__main__":
main()
This way the result will be a red window which is rgb(0, 0).
Related
I keep getting an error about system not being initialised. The error is about the pygame.display.update()
Where is this meant to go?
import pygame #IMPORTS THE PYGAME CLASSES, METHODS AND ATTRIBUTES
from pygame.locals import * #IMPORTING ALL PYGAME MODULES
pygame.init() #INITIALISING PYGAME
WIDTH, HEIGHT = 1000, 600
WINDOW = pygame.display.set_mode((WIDTH,HEIGHT))
pygame.display.set_caption("On The Run")
blue = 146,244,255 #BACKGROUND COLOUR
width = 80
height = 60
x = 200 #X-POSITION OF THE CHARACTER
y = 100 #Y-POSITION OF THE CHARACTER
player1 = pygame.image.load('assets/characterMove3.jpg') #DISPLAYING THE IMAGE ONTO THE SCREEN
player1 = pygame.transform.scale(player1,(width,height)) #SCALING THE IMAGE TO SUITABLE DIMENSIONS
WINDOW.blit(player1,(x,y))
def game_loop(): #WHERE THE WINDOW IS CREATED
run = True
while run:
WINDOW.fill(blue)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False #WE WILL QUIT THE GAME AS THE VARIABLE run IS NOW FALSE
pygame.quit() #IT WON'T SHOW THE MOST RECENT THING I DREW UNLESS I MANUALLY UPDATE IT
pygame.display.update()
game_loop()
The problem is that pygame.quit() is called in the application loop. pygame.quit() deinitializes all Pygame modules and crashes all subsequent Pygame API calls. pygame.quit() must be the very last Pygame API call. Call pygame.quit() after the application loop:
def game_loop(): #WHERE THE WINDOW IS CREATED
run = True
while run:
WINDOW.fill(blue)
for event in pygame.event.get():
if event.type == pygame.QUIT:
run = False
#pygame.quit() <-- DELETE
pygame.display.update()
pygame.quit() # <-- INSERT
game_loop()
The screen pops up with the green rectangle but I can't move it.
I don't understand why it won't work. any help would be highly appreciated!
import pygame
pygame.init()
width=1800
height=900
red=(255,0,0)
green=(0,255,0)
blue=(0,0,255)
white=(0,0,0)
black=(255,255,255)
x=800
y=150
running = True
def main():
global running, screen, x, y
screen = pygame.display.set_mode((width,height))
pygame.draw.rect(screen, green,(x,y,100,300))
pygame.display.update()
while running:
ev = pygame.event.get()
for event in ev:
if event.type==pygame.KEYDOWN:
if event.type==pygame.K_RIGHT:
x+=20
pygame.display.update()
if event.type==pygame.QUIT:
pygame.quit()
exit()
pygame.display.update()
main()
You have to draw the object in the application not just before the application loop. See My program will run, but the K_RIGHT command will not work:
import pygame
pygame.init()
width, height = 1800, 900
x, y = 800, 150
def main():
global running, screen, x, y
screen = pygame.display.set_mode((width,height))
clock = pygame.time.Clock()
running = True
while running:
clock.tick(100)
ev = pygame.event.get()
for event in ev:
if event.type==pygame.QUIT:
running = False
if event.type==pygame.KEYDOWN:
if event.type==pygame.K_RIGHT:
x+=20
screen.fill("black")
pygame.draw.rect(screen, "green", (x,y,100,300))
pygame.display.update()
pygame.quit()
exit()
main()
The typical PyGame application loop has to:
handle the events by calling either pygame.event.pump() or pygame.event.get().
update the game states and positions of objects dependent on the input events and time (respectively frames)
clear the entire display or draw the background
draw the entire scene (blit all the objects)
update the display by calling either pygame.display.update() or pygame.display.flip()
limit frames per second to limit CPU usage with pygame.time.Clock.tick
I'm creating a simple pygame program (PyGame 1.9.6 on Python 3.7), but some of the code inside my while loop doesn't seem to work. When I run the program, the window opens, but the screen doesn't fill with black, nor does the window close when I press "x"
import pygame
# pygame setup
pygame.init()
# Open a window on the screen
width, height = 600, 600
screen = pygame.display.set_mode((width, height))
def main():
running = True
clock = pygame.time.Clock()
BLACK = (0,0,0)
while running:
clock.tick(5) # number of loops per second
print("tick")
screen.fill(BLACK)
for event in pygame.event.get():
print("event detected")
if event == pygame.QUIT:
running = False
pygame.display.update()
main()
In the console, "tick" appears like normal and "event detected" appears after pressing any keys or mouse click. I don't get any errors when I run it.
If event == pygame.QUIT: should be if event.type == pygame.QUIT:
I usually use that event like this:
if event.type == pygame.QUIT:
pygame.quit()
quit()
Just as #Telan said
if event==pygame.QUIT:
should be
if event.type==pygame.QUIT:
However to properly shutdown pygame, pygame.quit() is important to shutdown pygame modules which is the reverse of pygame.init()
While sys.exit() is used to properly shutdown the main python program.
from sys import exit
import pygame
if event.type == pygame.QUIT:
pygame.quit()
exit()
Full code is shown below. Enjoy!
import pygame
from sys import exit
# pygame setup
pygame.init()
# Open a window on the screen
width, height = 600, 600
screen = pygame.display.set_mode((width, height))
def main():
clock = pygame.time.Clock()
BLACK = (0, 0, 0)
while True:
clock.tick(5) # number of loops per second
print("tick")
screen.fill(BLACK)
for event in pygame.event.get():
print("event detected")
if event.type == pygame.QUIT:
pygame.quit()
exit()
pygame.display.update()
if __name__ == "__main__":
main()
So when I set
while not game_over = False
, my window opens properly, but the text doesn't show. Whereas if I set it to True, the text shows but window closes immediately.
Here's the code:
***#Write a Python program to create a simple math quiz.
#Importing libraries
import pygame
import sys
import math
from pygame.locals import *
#Initialising fonts
pygame.init()
pygame.font.init()
#Assigning variables
WIDTH = 600
HEIGHT = 600
#Other important things
background_color = (127,255,0)
screen = pygame.display.set_mode((WIDTH, HEIGHT))
clock = pygame.time.Clock()
pygame.display.set_caption("Math Game")
screen.fill(background_color)
pygame.display.flip()
font = pygame.font.Font("freesansbold.ttf", 40)
textX=10
textY=10
def show_text(x,y):
text=font.render("Math Game", True, (0,0,0))
screen.blit(text,(x,y))
"""
#Adding the Calculator bit
x = input("Enter Your First Nummber To Add: ")
y = input("Enter Your Second Number To Add: ")
z = str(int(x)+int(y))
print(z)
"""
#Game loop
game_over = True
while not game_over:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
show_text(textX, textY)
pygame.display.update()***
It is a matter of Indentation. show_text and pygame.display.update() must be called in the application loop instead of after the application loop.
Additionally you should clear the display in the application loop.
game_over = False
while not game_over:
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
# INDENTATION
#-->|
screen.fill(background_color)
show_text(textX, textY)
pygame.display.update()
The typical PyGame application loop has to:
handle the events by calling either pygame.event.pump() or pygame.event.get().
update the game states and positions of objects dependent on the input events and time (respectively frames)
clear the entire display or draw the background
draw the entire scene (blit all the objects)
update the display by calling either pygame.display.update() or pygame.display.flip()
limit the frames per second to limit CPU usage with pygame.time.Clock.tick
I am making a new game in pygame and the blit function just is not working for me, it should be simple but I just don't know what's wrong.
import pygame
import sys
pygame.init()
clock = pygame.time.Clock()
game = True
WIDTH = 160
HEIGHT = 144
screen = pygame.display.set_mode((WIDTH, HEIGHT), pygame.FULLSCREEN)
level = pygame.image.load('RBYG/Level.png')
def redrawGameWindow():
screen.blit(level, (0, 0))
while game:
screen.blit(level,(0, 0))
for event in pygame.event.get():
print(event)
if event.type == pygame.QUIT:
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
sys.exit()
redrawGameWindow()
clock.tick(60)
You're missing pygame.display.flip(), you have to do that after you blit or nothing will happen. Your redrawGameWindow() function should flip the display. Also, you're calling screen.blit(level, (0, 0)) twice in your main loop, which may be unnecessary; try just keeping one of them (just make sure to flip() after).