파이썬 게임 011. pygame.draw 모듈로 그외 도형 그리기 (타원, 다각형, 타원호)

Game - Python - Pygame

 

pygame.draw.ellipse() 함수, pygame.draw.polygon() 함수, pygame.draw.arc() 함수를 이용해 타원, 다각형 및 타원호를 그려본다.

 

본 글에서 사용하는 기능 및 참고되는 기능에 대한 정의는 다음과 같다.

 

pygame.draw.ellipse(surface, color, rect, width=0) -> Rect
pygame.draw.polygon(surface, color, points, width=0) -> Rect
pygame.draw.arc(surface, color, rect, start_angle, stop_angle, width=1) -> Rect

그외 도형 그리기 (ellipse, polygon, arc)

<코드 1>

# python 3.9.6
# pygame 2.0.1

import pygame
from math import pi

BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
YELLOW = (255, 255, 0)


def main():
    pygame.init()

    screen_width, screen_height = (640, 480)
    screen = pygame.display.set_mode((screen_width, screen_height))
    # screen_size = screen.get_size()
    clock = pygame.time.Clock()

    running = True

    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT\
                    or event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
                running = False
                break
        if not running:
            continue

        screen.fill(BLACK)

        rect = pygame.draw.ellipse(screen, WHITE, [50, 50, 100, 50], 2)
        pygame.draw.rect(screen, RED, rect, 1)

        rect = pygame.draw.ellipse(screen, WHITE, [200, 50, 100, 50])
        pygame.draw.rect(screen, RED, rect, 1)

        rect = pygame.draw.polygon(screen, WHITE, [[50, 150], [60, 180], [210, 180], [200, 150]], 2)
        pygame.draw.rect(screen, RED, rect, 1)

        rect = pygame.draw.arc(screen, WHITE, [150, 250, 100, 100], (pi/2) * 0, (pi/2) * 1, 2)
        pygame.draw.rect(screen, RED, rect, 1)

        pygame.draw.arc(screen, GREEN, [100, 250, 100, 100], (pi/2) * 1, (pi/2) * 2, 2)
        pygame.draw.arc(screen, BLUE,  [100, 300, 100, 100], (pi/2) * 2, (pi/2) * 3, 2)
        pygame.draw.arc(screen, RED,   [150, 300, 100, 100], (pi/2) * 3, (pi/2) * 4, 2)

        pygame.display.update()
        clock.tick(30)

    pygame.quit()


if __name__ == '__main__':
    main()

 

 

<코드 1>을 실행하면 다양한 도형이 그려지는데, 각 도형의 경계는 pygame.draw.rect() 함수 호출에 의해 그려진다.

예제 코드 2

 

<코드 2>를 실행하면 좌, 우로 움직이는 도형이 그려진다.

 

<코드 2>

# python 3.9.6
# pygame 2.0.1

import pygame
from math import pi

BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
YELLOW = (255, 255, 0)


def main():
    pygame.init()

    screen_width, screen_height = (640, 480)
    screen = pygame.display.set_mode((screen_width, screen_height))
    clock = pygame.time.Clock()

    running = True

    angle = [.0, .1]
    direction = True
    HP_DOWN_EVENT = pygame.event.custom_type()
    pygame.time.set_timer(HP_DOWN_EVENT, 100)

    while running:
        for event in pygame.event.get():
            if event.type == pygame.QUIT\
                    or event.type == pygame.KEYDOWN and event.key == pygame.K_ESCAPE:
                running = False
                break
            elif event.type == HP_DOWN_EVENT:
                if direction:
                    angle[0] = round(angle[0] + .1, 1)
                    angle[1] = round(angle[1] + .1, 1)
                    if angle[1] > 2:
                        angle[0] = 1.8
                        angle[1] = 1.9
                        direction = False
                else:
                    angle[0] = round(angle[0] - .1, 1)
                    angle[1] = round(angle[1] - .1, 1)
                    if angle[0] < 0:
                        angle[0] = .1
                        angle[1] = .2
                        direction = True
        if not running:
            continue

        screen.fill(BLACK)

        pygame.draw.line(screen, GREEN, [140, 350], [560, 350], 1)
        pygame.draw.line(screen, GREEN, [350, 140], [350, 350], 1)
        pygame.draw.line(screen, GREEN, [350, 140], [350, 350], 1)

        pygame.draw.circle(screen, GREEN, [350, 350], 200, 1, draw_top_right=True, draw_top_left=True)
        pygame.draw.circle(screen, GREEN, [350, 350], 150, 1, draw_top_right=True, draw_top_left=True)
        pygame.draw.circle(screen, GREEN, [350, 350], 100, 1, draw_top_right=True, draw_top_left=True)
        pygame.draw.circle(screen, GREEN, [350, 350], 50, 1, draw_top_right=True, draw_top_left=True)

        rect = pygame.draw.arc(screen, GREEN, [150, 150, 400, 400], (pi / 2) * angle[0], (pi / 2) * angle[1], 200)
        pygame.draw.rect(screen, RED, rect, 1)

        pygame.display.update()
        clock.tick(30)

    pygame.quit()


if __name__ == '__main__':
    main()