Pygame loop only renders final frame/move [duplicate] - python

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()

You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop

simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

Related

Custom Rectangle Class Not Drawing [duplicate]

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop
simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

pygame display window is black/blank/empty [duplicate]

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop
simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

Pygame Showing Black Screen Instead of Game [duplicate]

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop
simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

How to activate UITextEntryLine pygame_gui element? [duplicate]

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop
simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

Getting the pygame window but no output [duplicate]

i have started a new project in python using pygame and for the background i want the bottom half filled with gray and the top black. i have used rect drawing in projects before but for some reason it seems to be broken? i don't know what i am doing wrong. the weirdest thing is that the result is different every time i run the program. sometimes there is only a black screen and sometimes a gray rectangle covers part of the screen, but never half of the screen.
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
You need to update the display.
You are actually drawing on a Surface object. If you draw on the Surface associated to the PyGame display, this is not immediately visible in the display. The changes become visibel, when the display is updated with either pygame.display.update() or pygame.display.flip().
See pygame.display.flip():
This will update the contents of the entire display.
While pygame.display.flip() will update the contents of the entire display, pygame.display.update() allows updating only a portion of the screen to updated, instead of the entire area. pygame.display.update() is an optimized version of pygame.display.flip() for software displays, but doesn't work for hardware accelerated displays.
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 (draw 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
import pygame
from pygame.locals import *
pygame.init()
DISPLAY = pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
clock = pygame.time.Clock()
run = True
while run:
# handle events
for event in pygame.event.get():
if event.type == QUIT:
run = False
# clear display
DISPLAY.fill(0)
# draw scene
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
# update display
pygame.display.flip()
# limit frames per second
clock.tick(60)
pygame.quit()
exit()
repl.it/#Rabbid76/PyGame-MinimalApplicationLoop See also Event and application loop
simply change your code to:
import pygame, sys
from pygame.locals import *
pygame.init()
DISPLAY=pygame.display.set_mode((800,800))
pygame.display.set_caption("thing")
pygame.draw.rect(DISPLAY, (200,200,200), pygame.Rect(0,400,800,400))
pygame.display.flip() #Refreshing screen
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
it should help

Categories