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# Import a library of functions called 'pygame'
import pygame
from math import pi
# Initialize the game engine
pygame.init()
# Define the colors we will use in RGB format
BLACK = ( 0, 0, 0)
WHITE = (255, 255, 255)
BLUE = ( 0, 0, 255)
GREEN = ( 0, 255, 0)
RED = (255, 0, 0)
# Set the height and width of the screen
size = [400, 300]
screen = pygame.display.set_mode(size)
pygame.display.set_caption("Example code for the draw module")
#Loop until the user clicks the close button.
done = False
clock = pygame.time.Clock()
while not done:
# This limits the while loop to a max of 10 times per second.
# Leave this out and we will use all CPU we can.
clock.tick(10)
for event in pygame.event.get(): # User did something
if event.type == pygame.QUIT: # If user clicked close
done=True # Flag that we are done so we exit this loop
# All drawing code happens after the for loop and but
# inside the main while done==False loop.
# Clear the screen and set the screen background
screen.fill(WHITE)
# Draw on the screen a GREEN line from (0, 0) to (50, 30)
# 5 pixels wide.
pygame.draw.line(screen, GREEN, [0, 0], [50,30], 5)
# Draw on the screen 3 BLACK lines, each 5 pixels wide.
# The 'False' means the first and last points are not connected.
pygame.draw.lines(screen, BLACK, False, [[0, 80], [50, 90], [200, 80], [220, 30]], 5)
# Draw on the screen a GREEN line from (0, 50) to (50, 80)
# Because it is an antialiased line, it is 1 pixel wide.
pygame.draw.aaline(screen, GREEN, [0, 50],[50, 80], True)
# Draw a rectangle outline
pygame.draw.rect(screen, BLACK, [75, 10, 50, 20], 2)
# Draw a solid rectangle
pygame.draw.rect(screen, BLACK, [150, 10, 50, 20])
# Draw a rectangle with rounded corners
pygame.draw.rect(screen, GREEN, [115, 210, 70, 40], 10, border_radius=15)
pygame.draw.rect(screen, RED, [135, 260, 50, 30], 0, border_radius=10, border_top_left_radius=0,
border_bottom_right_radius=15)
# Draw an ellipse outline, using a rectangle as the outside boundaries
pygame.draw.ellipse(screen, RED, [225, 10, 50, 20], 2)
# Draw an solid ellipse, using a rectangle as the outside boundaries
pygame.draw.ellipse(screen, RED, [300, 10, 50, 20])
# This draws a triangle using the polygon command
pygame.draw.polygon(screen, BLACK, [[100, 100], [0, 200], [200, 200]], 5)
# Draw an arc as part of an ellipse.
# Use radians to determine what angle to draw.
pygame.draw.arc(screen, BLACK,[210, 75, 150, 125], 0, pi/2, 2)
pygame.draw.arc(screen, GREEN,[210, 75, 150, 125], pi/2, pi, 2)
pygame.draw.arc(screen, BLUE, [210, 75, 150, 125], pi,3*pi/2, 2)
pygame.draw.arc(screen, RED, [210, 75, 150, 125], 3*pi/2, 2*pi, 2)
# Draw a circle
pygame.draw.circle(screen, BLUE, [60, 250], 40)
# Draw only one circle quadrant
pygame.draw.circle(screen, BLUE, [250, 250], 40, 0, draw_top_right=True)
pygame.draw.circle(screen, RED, [250, 250], 40, 30, draw_top_left=True)
pygame.draw.circle(screen, GREEN, [250, 250], 40, 20, draw_bottom_left=True)
pygame.draw.circle(screen, BLACK, [250, 250], 40, 10, draw_bottom_right=True)
# Go ahead and update the screen with what we've drawn.
# This MUST happen after all the other drawing commands.
pygame.display.flip()
# Be IDLE friendly
pygame.quit()
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