Pygame button get.pressed()

Question

I am just new in pygame, this is my code, pieces. I have main button function, and in gameloop i i successfully create a interactive button, and i don't know exactly, how can i press the button in gameloop ("Start playing") and fill my gameDisplay, for example...white color. Thanks in advance ...........................................................................................................................................................

import pygame,sys


pygame.init()
#############
pygame.mixer.music.load('Invincible.mp3')
pygame.mixer.music.play()

#############

display_width = 800
display_height = 600

black = (0,0,0)
white = (255,255,255)

red = (200,0,0)
green = (0,200,0)

bright_red = (255,0,0)
bright_green = (0,255,0)

block_color = (53,115,255)


gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('One Day After')
clock = pygame.time.Clock()

gameIcon = pygame.image.load('gameicon.jpg')
pygame.display.set_icon(gameIcon)

pause = False

def text_objects(text, font):
    textSurface = font.render(text, True, black)
    return textSurface, textSurface.get_rect()


def GameOver():
    ####################################
    pygame.mixer.Sound.play("smb_gameover.wav")
    pygame.mixer.music.stop()
    ####################################
    largeText = pygame.font.SysFont("comicsansms",115)
    TextSurf, TextRect = text_objects("Game Over", largeText)
    TextRect.center = ((display_width/2),(display_height/2))
    gameDisplay.blit(TextSurf, TextRect)


    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()



        button("Play Again",150,450,100,50,green,bright_green,game_loop)
        button("Quit",550,450,100,50,red,bright_red,quitgame)

        pygame.display.update()
        clock.tick(15) 

def button(msg,x,y,w,h,ic,ac,action=None):
    mouse = pygame.mouse.get_pos()
    click = pygame.mouse.get_pressed()

    if x+w > mouse[0] > x and y+h > mouse[1] > y:
        pygame.draw.rect(gameDisplay, ac,(x,y,w,h))
        if click[0] == 1 and action != None:
            pygame.mixer.music.stop()
            action()

    else:
        pygame.draw.rect(gameDisplay, ic,(x,y,w,h))
    smallText = pygame.font.SysFont("comicsansms",20)
    textSurf, textRect = text_objects(msg, smallText)
    textRect.center = ( (x+(w/2)), (y+(h/2)) )
    gameDisplay.blit(textSurf, textRect)


def quitgame():
    pygame.quit()
    sys.exit()
    quit()

def unpause():
    global pause
    pygame.mixer.music.unpause()
    pause = False


def paused():
    ############
    pygame.mixer.music.pause()
    #############
    largeText = pygame.font.SysFont("comicsansms",115)
    TextSurf, TextRect = text_objects("Paused", largeText)
    TextRect.center = ((display_width/2),(display_height/2))
    gameDisplay.blit(TextSurf, TextRect)


    while pause:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()


        button("Continue",150,450,100,50,green,bright_green,unpause)
        button("Quit",550,450,100,50,red,bright_red,quitgame)

        pygame.display.update()
        clock.tick(15)   


def game_intro():

    intro = True

    while intro:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                quit()

        pilt1 = pygame.image.load('apoc2.jpg').convert()
        gameDisplay.blit(pilt1, [0,0])
        pygame.display.flip()


        button("Start",150,450,100,50,green,bright_green,game_loop)
        button("Quit",550,450,100,50,red,bright_red,quitgame)

        pygame.display.update()

def game_loop():
    global pause

    gameExit = False

    while not gameExit:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
                sys.exit()
                quit()
        gameDisplay.fill(white)
        gameDisplaypic = pygame.image.load('back.jpg').convert()
        gameDisplay.blit(gameDisplaypic, [0,0])
        tekst = "This game will go as far as you choose!"
        meie_font = pygame.font.SysFont("Arial", 36)
        teksti_pilt = meie_font.render(tekst, False, (50,50,155))
        gameDisplay.blit(teksti_pilt, (100, 250))
        tekst2 = "You are the smith of your destiny"
        meie_font = pygame.font.SysFont("Arial", 36)
        teksti_pilt = meie_font.render(tekst2, False, (50,50,155))
        gameDisplay.blit(teksti_pilt, (100, 400))
        button("Start playing",300,500,150,50,green,bright_green)
        pygame.display.update()









game_intro()
game_loop()
pygame.quit()
quit()

Answer 1

I hope this program will help.

import pygame,sys
from pygame.locals import *

pygame.init()
screen = pygame.display.set_mode((400,400))
white=(255,255,255)
blue=(0,0,255)
bright_red = (255,0,0)
red = (200,0,0)
black=(0,0,0)
color=white

def changecolor(newcolor):
    global color
    color=newcolor

while True:
    screen.fill(color)

    for event in pygame.event.get():
        if event.type == QUIT:
            pygame.quit()
            sys.exit()
        elif event.type == MOUSEBUTTONUP:
            # Whenever somebody clicks on the screen the color
            # will change from the initial color to the color
            # value you send to the function. Using this you could
            # make it specifically for your button. Like calling
            # the change color function whenever the button is clicked.
            changecolor(blue)

    pygame.display.update()

Answer 2

You can use state variables (True/False) to control which element to display and you can change those varibles using button.

In example I have

    display_text = True
    display_button_1 = True
    display_button_2 = False

to control when display text and two buttons.

First button change values and it hides text and first button, and it shows second button.

There is one problem - your button function is ugly and it use get_buttons() so when I hold pressed button and I remove one button and put another in the same place then it automatically click second button. You should use event.type == MOUSEBUTTONUP (as suggest @Hilea) to fix this.

import pygame
import sys # every import in separated line

# --- constants ---

display_width = 800
display_height = 600

black = (0,0,0)
white = (255,255,255)

red = (200,0,0)
green = (0,200,0)

bright_red = (255,0,0)
bright_green = (0,255,0)

block_color = (53,115,255)

# --- functions ---

def text_objects(text, font):
    textSurface = font.render(text, True, black)
    return textSurface, textSurface.get_rect()

def button(msg,x,y,w,h,ic,ac,action=None):
    mouse = pygame.mouse.get_pos()
    click = pygame.mouse.get_pressed()

    if x+w > mouse[0] > x and y+h > mouse[1] > y:
        pygame.draw.rect(gameDisplay, ac,(x,y,w,h))
        if click[0] == 1 and action != None:
            pygame.mixer.music.stop()
            action()

    else:
        pygame.draw.rect(gameDisplay, ic,(x,y,w,h))
    smallText = pygame.font.SysFont("comicsansms",20)
    textSurf, textRect = text_objects(msg, smallText)
    textRect.center = ( (x+(w/2)), (y+(h/2)) )
    gameDisplay.blit(textSurf, textRect)

def quitgame():
    pygame.quit()
    sys.exit()
    quit()

def hide_text():
    global display_text
    global display_button_1
    global display_button_2

    display_text = False
    display_button_1 = False
    display_button_2 = True

def game_loop():
    global display_text
    global display_button_1
    global display_button_2

    gameExit = False
    display_text = True
    display_button_1 = True
    display_button_2 = False

    meie_font = pygame.font.SysFont("Arial", 36)

    tekst = "This game will go as far as you choose!"
    teksti_pilt = meie_font.render(tekst, False, (50,50,155))

    tekst2 = "You are the smith of your destiny"
    teksti_pilt = meie_font.render(tekst2, False, (50,50,155))

    while not gameExit:

        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return

        gameDisplay.fill(white)

        if display_text:
            gameDisplay.blit(teksti_pilt, (100, 250))
            gameDisplay.blit(teksti_pilt, (100, 400))

        if display_button_1:
            button("Start playing", 300,500,150,50,green,bright_green, hide_text)

        if display_button_2:
            button("Exit", 300,100,150,50,green,bright_green, pygame.quit)

        pygame.display.update()

# --- main ---

pygame.init()

gameDisplay = pygame.display.set_mode((display_width,display_height))
pygame.display.set_caption('One Day After')

clock = pygame.time.Clock()

pause = False

game_loop()
pygame.quit()