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
'''

1 pygame.draw.rect   #画一个矩形

下面是我做的demo

hongten_pygame

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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 1 #pygame draw
 2 
 3 import pygame
 4 from pygame.locals import *
 5 from sys import exit
 6 from random import *
 7 
 8 __author__ = {'name' : 'Hongten',
 9               'mail' : 'hongtenzone@foxmail.com',
10               'blog' : 'http://www.cnblogs.com/hongten',
11               'Version' : '1.0'}
12 
13 pygame.init()
14 
15 SCREEN_DEFAULT_SIZE = (500, 500)
16 SCREEN_DEFAULT_COLOR = (0, 0 ,0)
17 
18 screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
19 screen.fill(SCREEN_DEFAULT_COLOR)
20 
21 while 1:
22     for event in pygame.event.get():
23         if event.type ==  QUIT:
24             exit()
25         elif event.type == KEYDOWN:
26             screen.fill(SCREEN_DEFAULT_COLOR)
27         elif event.type == MOUSEBUTTONDOWN:
28             rect_color = (randint(0, 255), randint(0, 255), randint(0, 255))
29             rect_pos = (randint(0, 500), randint(0, 500))
30             rect_pos_end = (500 - randint(rect_pos[0], 500), 500 - randint(rect_pos[1], 500))
31             pygame.draw.rect(screen, rect_color, Rect(rect_pos, rect_pos_end))
32     pygame.display.update()

1 pygame.draw.circle  #画圆

demo：

hongten_pygame

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：

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

 1 #pygame draw
 2 
 3 import pygame
 4 from pygame.locals import *
 5 from sys import exit
 6 from random import *
 7 
 8 __author__ = {'name' : 'Hongten',
 9               'mail' : 'hongtenzone@foxmail.com',
10               'blog' : 'http://www.cnblogs.com/hongten',
11               'Version' : '1.0'}
12 
13 pygame.init()
14 
15 SCREEN_DEFAULT_SIZE = (500, 500)
16 SCREEN_DEFAULT_COLOR = (0, 0 ,0)
17 
18 screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
19 screen.fill(SCREEN_DEFAULT_COLOR)
20 
21 while 1:
22     for event in pygame.event.get():
23         if event.type ==  QUIT:
24             exit()
25         elif event.type == KEYDOWN:
26             screen.fill(SCREEN_DEFAULT_COLOR)
27         elif event.type == MOUSEBUTTONDOWN:
28             c_color = (randint(0, 255), randint(0, 255), randint(0, 255))
29             c_pos = (randint(0, 500), randint(0, 500))
30             c_r = randint(10, 100)
31             pygame.draw.circle(screen, c_color, c_pos, c_r)
32     pygame.display.update()

1 pygame.draw.line   #画线

demo：

hongten_pygame

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：

1 RECORD = False   #取消记录鼠标轨迹

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

代码部分：

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

 1 #pygame draw
 2 
 3 import pygame
 4 from pygame.locals import *
 5 from sys import exit
 6 from random import *
 7 
 8 __author__ = {'name' : 'Hongten',
 9               'mail' : 'hongtenzone@foxmail.com',
10               'blog' : 'http://www.cnblogs.com/hongten',
11               'Version' : '1.0'}
12 
13 pygame.init()
14 
15 SCREEN_WIDTH = 500
16 SCREEN_HEIGHT = 500
17 SCREEN_DEFAULT_SIZE = (SCREEN_WIDTH, SCREEN_HEIGHT)
18 SCREEN_DEFAULT_COLOR = (0, 0 ,0)
19 #record the mouse clicked points
20 RECORD = True
21 
22 screen = pygame.display.set_mode(SCREEN_DEFAULT_SIZE, 0, 32)
23 screen.fill(SCREEN_DEFAULT_COLOR)
24 
25 def draw_lines(screen, line_color, points, mouse_pos):
26     for point in points:
27         pygame.draw.line(screen, line_color, point, mouse_pos)
28 ps = []
29 #you can add other points
30 points = [(0, 0), (250, 0), (500, 0),
31           (0, 250),(0, 500),(250, 500),
32           (500, 250),(500, 500)]
33 
34 
35 while 1:
36     for event in pygame.event.get():
37         if event.type ==  QUIT:
38             exit()
39         elif event.type == KEYDOWN:
40             screen.fill(SCREEN_DEFAULT_COLOR)
41         elif event.type == MOUSEMOTION:
42             screen.fill(SCREEN_DEFAULT_COLOR)
43             line_color = (randint(0, 255), randint(0, 255), randint(0, 255))
44             draw_lines(screen, line_color, points, pygame.mouse.get_pos())
45             #record the mouse clicked points depend on yourself
46             if not RECORD:
47                 ps = []
48             for c_p in ps:
49                 draw_lines(screen, c_p[0], points, c_p[1])  
50         elif event.type == MOUSEBUTTONDOWN:
51             x, y = pygame.mouse.get_pos()
52             line_color = (randint(0, 255), randint(0, 255), randint(0, 255))
53             draw_lines(screen, line_color, points, (x, y))
54             ps.append((line_color, (x, y)))
55             
56     pygame.display.update()

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