pygame系列_draw游戏画图

说到画图，pygame提供了一些很有用的方法进行draw画图。

'''
pygame.draw.rect - draw a rectangle shape    draw a rectangle shape
pygame.draw.polygon - draw a shape with any number of sides    draw a shape with any number of sides
pygame.draw.circle - draw a circle around a point    draw a circle around a point
pygame.draw.ellipse - draw a round shape inside a rectangle    draw a round shape inside a rectangle
pygame.draw.arc - draw a partial section of an ellipse    draw a partial section of an ellipse
pygame.draw.line - draw a straight line segment    draw a straight line segment
pygame.draw.lines - draw multiple contiguous line segments    draw multiple contiguous line segments
pygame.draw.aaline - draw fine antialiased lines    draw fine antialiased lines
pygame.draw.aalines - pygame.draw.aalines(Surface, color, closed, pointlist, blend=1): return Rect
'''

pygame.draw.rect   #画一个矩形

下面是我做的demo

有鼠标在窗口中点击的时候，系统会自动画出一个矩形，按键盘任意键，清屏

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代码部分：

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#pygame draw

import pygame
from pygame.locals import *
from sys import exit
from random import *

__author__ = {'name' : 'Hongten',
              'mail' : 'hongtenzone@foxmail.com',
              'blog' : 'http://www.cnblogs.com/hongten',
              'Version' : '1.0'}

pygame.init()

SCREEN_DEFAULT_SIZE = (500, 500)
SCREEN_DEFAULT_COLOR = (0, 0 ,0)

screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
screen.fill(SCREEN_DEFAULT_COLOR)

while 1:
    for event in pygame.event.get():
        if event.type ==  QUIT:
            exit()
        elif event.type == KEYDOWN:
            screen.fill(SCREEN_DEFAULT_COLOR)
        elif event.type == MOUSEBUTTONDOWN:
            rect_color = (randint(0, 255), randint(0, 255), randint(0, 255))
            rect_pos = (randint(0, 500), randint(0, 500))
            rect_pos_end = (500 - randint(rect_pos[0], 500), 500 - randint(rect_pos[1], 500))
            pygame.draw.rect(screen, rect_color, Rect(rect_pos, rect_pos_end))
    pygame.display.update()

pygame.draw.circle  #画圆

demo：

当鼠标在窗口中移动的时候，单击鼠标，即可在窗口中产生一个随机圆，按下键盘任意键，清屏

==================================================

代码部分：

==================================================

#pygame draw

import pygame
from pygame.locals import *
from sys import exit
from random import *

__author__ = {'name' : 'Hongten',
              'mail' : 'hongtenzone@foxmail.com',
              'blog' : 'http://www.cnblogs.com/hongten',
              'Version' : '1.0'}

pygame.init()

SCREEN_DEFAULT_SIZE = (500, 500)
SCREEN_DEFAULT_COLOR = (0, 0 ,0)

screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
screen.fill(SCREEN_DEFAULT_COLOR)

while 1:
    for event in pygame.event.get():
        if event.type ==  QUIT:
            exit()
        elif event.type == KEYDOWN:
            screen.fill(SCREEN_DEFAULT_COLOR)
        elif event.type == MOUSEBUTTONDOWN:
            c_color = (randint(0, 255), randint(0, 255), randint(0, 255))
            c_pos = (randint(0, 500), randint(0, 500))
            c_r = randint(10, 100)
            pygame.draw.circle(screen, c_color, c_pos, c_r)
    pygame.display.update()

pygame.draw.line   #画线

demo：

鼠标在窗口中移动的时候，总是有一些线和鼠标汇聚，当鼠标被点击的时候，就会记录下此时的形状

按下键盘任意键，清屏

当然你也可以取消这个功能：

RECORD = False   #取消记录鼠标轨迹

==================================================

代码部分：

==================================================

#pygame draw

import pygame
from pygame.locals import *
from sys import exit
from random import *

__author__ = {'name' : 'Hongten',
              'mail' : 'hongtenzone@foxmail.com',
              'blog' : 'http://www.cnblogs.com/hongten',
              'Version' : '1.0'}

pygame.init()

SCREEN_WIDTH = 500
SCREEN_HEIGHT = 500
SCREEN_DEFAULT_SIZE = (SCREEN_WIDTH, SCREEN_HEIGHT)
SCREEN_DEFAULT_COLOR = (0, 0 ,0)
#record the mouse clicked points
RECORD = True

screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
screen.fill(SCREEN_DEFAULT_COLOR)

def draw_lines(screen, line_color, points, mouse_pos):
    for point in points:
        pygame.draw.line(screen, line_color, point, mouse_pos)
ps = []
#you can add other points
points = [(0, 0), (250, 0), (500, 0),
          (0, 250),(0, 500),(250, 500),
          (500, 250),(500, 500)]


while 1:
    for event in pygame.event.get():
        if event.type ==  QUIT:
            exit()
        elif event.type == KEYDOWN:
            screen.fill(SCREEN_DEFAULT_COLOR)
        elif event.type == MOUSEMOTION:
            screen.fill(SCREEN_DEFAULT_COLOR)
            line_color = (randint(0, 255), randint(0, 255), randint(0, 255))
            draw_lines(screen, line_color, points, pygame.mouse.get_pos())
            #record the mouse clicked points depend on yourself
            if not RECORD:
                ps = []
            for c_p in ps:
                draw_lines(screen, c_p[0], points, c_p[1])  
        elif event.type == MOUSEBUTTONDOWN:
            x, y = pygame.mouse.get_pos()
            line_color = (randint(0, 255), randint(0, 255), randint(0, 255))
            draw_lines(screen, line_color, points, (x, y))
            ps.append((line_color, (x, y)))
            
    pygame.display.update()

更多信息：http://pygame.org/docs/ref/draw.html

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