[Pygame] Pygame GUI 파이게임 그래픽 유저 인터페이스

파이게임과 GUI 라이브러리를 사용해 보자.

ImGui를 사용해 보려 했는데, OpenGL을 이용해야 하고 pygame.Surface.fill()을 사용할 수 없는 등 마음에 들지 않아 Pygame GUI를 사용하기로 했다.

 

pygame-gui를 설치한다.

 

import pygame
import pygame_gui
 
pygame.init()
pygame.display.set_caption("Super fun game development")
screenSize = (640, 480)
screen = pygame.display.set_mode(screenSize, pygame.DOUBLEBUF | pygame.RESIZABLE)
clock = pygame.time.Clock()
 
manager = pygame_gui.UIManager(screenSize)
hello_button = pygame_gui.elements.UIButton(relative_rect=pygame.Rect((10, 10), (100, 50)),
                                            text='Say Hello', manager=manager)
 
running = True
 
while running:
    time_delta = clock.tick(60)/1000
    # As you may have noticed we also had to create a pygame Clock to track the amount of time
    # in seconds that passes between each loop of the program. We need this 'time_delta' value
    # because several of the UI elements make use of timers and this is a convenient place to
    # get it.
        
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
            running = False
        
        if event.type == pygame_gui.UI_BUTTON_PRESSED:
              if event.ui_element == hello_button:
                  print('Hello World!')
        
        manager.process_events(event)
    
    manager.update(time_delta)
 
    screen.fill("black")
    pygame.draw.circle(screen, "gray", screen.get_rect().center, 100)
 
    manager.draw_ui(screen)
 
    pygame.display.flip()
 
pygame.quit()

 

코드를 입력하고 실행한다.

 

버튼이 표시된다.

 

2024.01.28 - [Python] - [Pygame] Box2D 파이게임 물리 라이브러리

위 링크의 코드를 이용해 조금 더 실용적인 예제를 만들어 보자.

 

import math
import pygame
import pygame_gui
from Box2D import *
 
pygame.init()
pygame.display.set_caption("Physics Test")
screen = pygame.display.set_mode((640, 480))
running = True
player = pygame.image.load("player.png").convert()
 
manager = pygame_gui.UIManager((640, 480))
again_button = pygame_gui.elements.UIButton(relative_rect=pygame.Rect((350, 10), (200, 100)),
                                            text='Play again', manager=manager)
 
world = b2World(gravity=(0, 9.8), doSleep=True)
 
groundBody = world.CreateStaticBody(position=(0, 400), shapes=b2PolygonShape(box=(500, 0)))
 
wallBody = world.CreateStaticBody(position=(300, 0), shapes=b2PolygonShape(box=(0, 400)))
 
playerBody = world.CreateDynamicBody(position=(0, 0), linearVelocity=(50, 0), angularVelocity=0.2)
playerFixtureDef = playerBody.CreatePolygonFixture(box=(player.get_width()/2,
                              player.get_height()/2), density=1, friction=0.5, restitution=0.7)
 
timeStep = 1.0 / 300
vel_iters, pos_iters = 6, 2
  
while running:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            running = False
        elif event.type == pygame.KEYDOWN and event.key == pygame.K_SPACE:
            playerBody.transform = ((0, 0), 0)
            playerBody.linearVelocity = (50, 0)
            playerBody.angularVelocity = 0.2
        elif event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
            running = False
            
        if event.type == pygame_gui.UI_BUTTON_PRESSED:
            if event.ui_element == again_button:
                playerBody.transform = ((0, 0), 0)
                playerBody.linearVelocity = (50, 0)
                playerBody.angularVelocity = 0.2
        
        manager.process_events(event)
            
    manager.update(timeStep)
    
    world.Step(timeStep, vel_iters, pos_iters)
    world.ClearForces()
     
    screen.fill("black")
    pygame.draw.rect(screen, "brown", (0, 400, 600, 20))
    pygame.draw.rect(screen, "yellow", (300, 0, 20, 400))
 
    rotated_player = pygame.transform.rotate(player, playerBody.angle * 180/math.pi)
    
    screen.blit(rotated_player, (playerBody.position[0] - rotated_player.get_width()/2,
                                 playerBody.position[1] - rotated_player.get_height()/2))
 
    manager.draw_ui(screen)
    
    pygame.display.flip()
    
pygame.quit()

 

코드를 입력하고 실행한다.

 

버튼을 클릭하면 캐릭터가 다시 던져진다.

 

※ 참고

GUIs with pygame

Pygame GUI