name 'event' is not defined not sure why im getting this - python

class GameState():
def init(self):
self.state = 'main_game'
def main_game(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
if event.type == pygame.MOUSEBUTTONDOWN: # this is where the error comes from
mouse_state = 1
pygame.mouse.set_pos(mouse_x,mouse_y + 1)
else:
mouse_state = 0
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT or event.key == pygame.K_a:
snake.yV = 0
snake.xV = -1
if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
snake.yV = 0
snake.xV = 1
if event.key == pygame.K_UP or event.key == pygame.K_w:
snake.xV = 0
snake.yV = -1
if event.key == pygame.K_DOWN or event.key == pygame.K_s:
snake.xV = 0
snake.yV = 1
mouse_x = pygame.mouse.get_pos()[0]
mouse_y = pygame.mouse.get_pos()[1]
pygame.display.set_caption("Snake, FPS: " + str(clock.get_fps()))
screen.fill(GREY)
snake.update()
food.update()
utility.update()
bombs.update()
food.draw()
snake.draw()
utility.draw()
bombs.draw()
pygame.display.flip()
button = Button()
snake = Snake()
food = Food()
utility = Utility()
bombs = Bombs()
game_state = GameState()
while not done:
game_state.main_game()
clock.tick(50)
pygame.quit()
This is just the snippit of code i can send the rest if needed the thing i did previously i had it under a game loop but this time im making a class and object so i can make multiple levels in the game

The if event.type == pygame.MOUSEBUTTONDOWN: and if event.type == pygame.KEYDOWN: are both outside of the for loop that defines the "event" variable.

def main_game(self):
for event in pygame.event.get():
if event.type == pygame.QUIT:
done = True
if event.type == pygame.MOUSEBUTTONDOWN: # this is where the error comes from
mouse_state = 1
pygame.mouse.set_pos(mouse_x,mouse_y + 1)
else:
mouse_state = 0
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT or event.key == pygame.K_a:
snake.yV = 0
snake.xV = -1
if event.key == pygame.K_RIGHT or event.key == pygame.K_d:
snake.yV = 0
snake.xV = 1
if event.key == pygame.K_UP or event.key == pygame.K_w:
snake.xV = 0
snake.yV = -1
if event.key == pygame.K_DOWN or event.key == pygame.K_s:
snake.xV = 0
snake.yV = 1
mouse_x = pygame.mouse.get_pos()[0]
mouse_y = pygame.mouse.get_pos()[1]
pygame.display.set_caption("Snake, FPS: " + str(clock.get_fps()))
screen.fill(GREY)
snake.update()
food.update()
utility.update()
bombs.update()
food.draw()
snake.draw()
utility.draw()
bombs.draw()
pygame.display.flip()
button = Button()
snake = Snake()
food = Food()
utility = Utility()
bombs = Bombs()
game_state = GameState()
Your code have indentation problems. Which makes event.MOUSEBUTTONDOWN and other events outside the loop. You code should have looks like this.

Related

How to make game character (user) move smooth?

in my game i have set my character to move. How it is set is:
if game_over_state == False:
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
pause = True
game_paused()
if event.key == pygame.K_LEFT:
player_x_change = -2
if event.key == pygame.K_RIGHT:
player_x_change = 2
if event.key == pygame.K_UP:
player_y_change = -2
if event.key == pygame.K_DOWN:
player_y_change = 2
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT
player_x_change = 0
if event.type == pygame.KEYUP:
player_y_change = 0
Is it a way to change this to a while function or something so the character doesn't stop moving when release a arrow-key (even though another arrow-key is held down)?
the issue is the condition in event.type == pygame.KEYUP.
if event.type == pygame.KEYUP:
# [...]
if event.type == pygame.KEYUP:
player_y_change = 0
Just reset either player_x_change or player_y_change, dependent on the key that is released:
if game_over_state == False:
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
pause = True
game_paused()
if event.key == pygame.K_LEFT:
player_x_change = -2
if event.key == pygame.K_RIGHT:
player_x_change = 2
if event.key == pygame.K_UP:
player_y_change = -2
if event.key == pygame.K_DOWN:
player_y_change = 2
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT or event.key == pygame.K_RIGHT
player_x_change = 0
if event.key == pygame.K_UP or event.key == pygame.K_DOWN:
player_y_change = 0
If you want to handle the keys simultaneously, that means you want to move the player diagonal when 2 keys are pressed and you don't want to that the player stops, when 1 key is released, then I recommend to use pygame.key.get_pressed() rather than the KEYDOWN event:
for event in in pygame.event.get():
if game_over_state == False:
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_ESCAPE:
pause = True
game_paused()
if game_over_state == False:
keys = pygame.key.get_pressed()
player_x_change, player_y_change = 0, 0
if keys[pygame.K_LEFT]:
player_x_change -= 2
if keys[pygame.K_RIGHT]:
player_x_change += 2
if keys[pygame.K_UP]:
player_y_change -= 2
if keys[pygame.K_DOWN]:
player_y_change += 2

How to move a picture this pygame program?

I've got the code below, the image ain't moving. Please tell me what's wrong so I can fix it real quick. Also, try to keep the answers short and to the point.
I can hear the music and all, the escape button and the quit is working too, directional keys are not.
PlayerImage = pygame.image.load("ch.jpg")
Player = pygame.Rect(675, 350, 40, 4)
StretchPlayer = pygame.transform.scale(PlayerImage, (40, 40))
goLeft = False
goRight = False
goUp = False
goDown = False
Velocity = 3
EatSound = pygame.mixer.Sound("sound.wav")
pygame.mixer.music.load("X.mp3")
pygame.mixer.music.play(-1, 0.0)
musicPlaying = True
while True :
for event in pygame.event.get() :
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT or event.key == ord('A'):
goRight = False
goLeft = True
if event.key == pygame.K_RIGHT or event.key == ord('D'):
goRight = True
goLeft = False
if event.key == pygame.K_UP or event.key == ord('W'):
goUp = True
goDown = False
if event.key == pygame.K_DOWN or event.key == ord('S'):
goUp = False
goDown = True
if event.type == pygame.KEYUP:
if event.key == pygame.K_ESCAPE:
pygame.quit()
sys.exit()
if event.key == pygame.K_LEFT or event.key == ord('A'):
goLeft = False
if event.key == pygame.K_RIGHT or event.key == ord('D'):
goRight = False
if event.key == pygame.K_UP or event.key == ord('W'):
goUp = False
if event.key == pygame.K_DOWN or event.key == ord('S'):
goDown = False
DisplayScreen.blit(StretchPlayer, Player)
pygame.display.update()
Just change the location of the rectangle Player dependent on goLeft, goRight, goUp and goDown, e.g. by .move:
dx = -1 if goLeft else 1 if goRight else 0
dy = -1 if goUp else 1 if goDown else 0
Player = Player.move(dx, dy)
DisplayScreen.blit(StretchPlayer, Player)

Need help on Pygame KEYDOWN

Just looking for assistance,
How can I adjust this so my character only moves when the LEFT of RIGHT key is held down & stops when key is released?
player_x = 10
player_y = 245
player_x_change = 0
clock = pygame.time.Clock()
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
player_x_change = -20
if event.key == pygame.K_RIGHT:
player_x_change = 20
player_x += player_x_change
You have to check KEYUP and change player_x_change
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
player_x_change = -20
elif event.key == pygame.K_RIGHT:
player_x_change = 20
elif event.type == pygame.KEYUP:
if event.key in (pygame.K_LEFT,pygame.K_RIGHT):
player_x_change = 0
EDIT:
if you need to stop object when LEFT and RIGHT are pressed at the same time
player_x_change = 0
while not gameExit:
for event in pygame.event.get():
if event.type == pygame.QUIT:
gameExit = True
elif event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
player_x_change -= 20
elif event.key == pygame.K_RIGHT:
player_x_change += 20
elif event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
player_x_change += 20
elif event.key == pygame.K_RIGHT:
player_x_change -= 20

Pygame text not drawing in

This class is supposed to manage the "debug menu"(FPS and number of enemies) so I want to draw this information in the left corner of the window but the text doesn't appear.
The class:
class Debug_mode():
def __init__(self):
self.font= pygame.font.Font(None, 48)
def get_strings(self,clock,enemy):
self.string1= "FPS: " + str(int(clock.get_fps()))
self.string2= "Enemigos: " + str(enemy.min_enemies)
self.text1= self.font.render(self.string1, True, (255,255,255))
self.text2= self.font.render(self.string2, True, (255,255,255))
def render(self,surface):
surface.blit(self.text1,(500,500))
surface.blit(self.text2,(500,100))
The main function:
def main():
pygame.init()
pygame.mouse.set_visible(False)
Screen_Surface= pygame.display.set_mode((WIDTH,HEIGHT))
background_image= pygame.image.load("C:/Users/Aitor/Desktop/bg.png").convert()
FPS_Clock= pygame.time.Clock()
vx= 0
vy= 0
left_pressed= False
right_pressed= False
down_pressed= False
up_pressed= False
Toby= Player()
Odyn= Enemies()
cursor= Cursor()
debug_menu= Debug_mode()
while True:
FPS_Clock.tick(FPS)
mouse_pos= pygame.mouse.get_pos()
old_x= Toby.rect.left
old_y= Toby.rect.top
for event in pygame.event.get():
if event.type == pygame.QUIT:
pygame.quit()
sys.exit()
if event.type == pygame.KEYDOWN:
if event.key == pygame.K_LEFT:
left_pressed= True
vx= -Toby.speed
if event.key == pygame.K_RIGHT:
right_pressed= True
vx= Toby.speed
if event.key == pygame.K_UP:
up_pressed= True
vy= -Toby.speed
if event.key == pygame.K_DOWN:
down_pressed= True
vy= Toby.speed
if event.type == pygame.KEYUP:
if event.key == pygame.K_LEFT:
left_pressed= False
if right_pressed:
vx= Toby.speed
else:
vx= 0
if event.key == pygame.K_RIGHT:
right_pressed= False
if left_pressed:
vx= -Toby.speed
else:
vx= 0
if event.key == pygame.K_DOWN:
down_pressed= False
if up_pressed:
vy= -Toby.speed
else:
vy= 0
if event.key == pygame.K_UP:
up_pressed= False
if down_pressed:
vy= Toby.speed
else:
vy= 0
if event.type == pygame.MOUSEMOTION:
(Toby.rect.left, Toby.rect.top)= mouse_pos
Toby.move(vx, vy, old_x, old_y)
Screen_Surface.blit(background_image, [0,0])
Odyn.update(Screen_Surface)
Screen_Surface.blit(Toby.image,Toby.rect)
pygame.display.update()
debug_menu.get_strings(FPS_Clock,Odyn)
debug_menu.render(Screen_Surface)
Do it before update()
debug_menu.get_strings(FPS_Clock,Odyn)
debug_menu.render(Screen_Surface)
pygame.display.update()

Making an image move arrond the screen with key presses

I had this script working before but now it doesnt work. Earlier, the image moved around the screen fine but now it wont even move, the image just stays in the corner not moving at all when i press up or down or left or right keys
import pygame, sys
from pygame.locals import *
pygame.init()
bifl = 'screeing.jpg'
milf = 'char_fowed_walk1.png'
screen = pygame.display.set_mode((640, 480))
background = pygame.image.load(bifl).convert()
mouse_c = pygame.image.load(milf).convert_alpha()
x, y = 0, 0
movex, movey = 0, 0
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == KEYDOWN:
if event.key == K_LEFT:
movex =- 0.3
elif event.key == K_RIGHT:
movex =+ 0.3
elif event.key == K_UP:
movey =- 0.3
elif event.key == K_DOWN:
movey =+ 0.3
if event.type == KEYDOWN:
if event.key == K_LEFT:
movex = 0
elif event.key == K_RIGHT:
movex = 0
elif event.key == K_UP:
movey = 0
elif event.key == K_DOWN:
movey = 0
x += movex
y += movey
screen.blit(background, (0, 0))
screen.blit(mouse_c, (x, y))
pygame.display.update()
I am using python 2.7
All you need to do is change the second KEYDOWN to KEYUP so that your movement speed doesn't get set to 0 whenever you press a key.
EDIT: Additionally you have some strange syntax in your code. =- and =+ are not Python operators. I think you meant += and -=. Also remember to use elif statements instead of if statements whenever possible. Not only does this optimize your code, it also makes it easier to understand and debug.
import pygame, sys
from pygame.locals import *
pygame.init()
bifl = 'screeing.jpg'
milf = 'char_fowed_walk1.png'
screen = pygame.display.set_mode((640, 480))
background = pygame.image.load(bifl).convert()
mouse_c = pygame.image.load(milf).convert_alpha()
x, y = 0, 0
movex, movey = 0, 0
while True:
for event in pygame.event.get():
if event.type == QUIT:
pygame.quit()
sys.exit()
if event.type == KEYDOWN:
if event.key == K_LEFT:
movex -= 0.3
elif event.key == K_RIGHT:
movex += 0.3
elif event.key == K_UP:
movey -= 0.3
elif event.key == K_DOWN:
movey += 0.3
elif event.type == KEYUP:
if event.key == K_LEFT:
movex = 0
elif event.key == K_RIGHT:
movex = 0
elif event.key == K_UP:
movey = 0
elif event.key == K_DOWN:
movey = 0
x += movex
y += movey
screen.blit(background, (0, 0))
screen.blit(mouse_c, (x, y))
pygame.display.update()

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