python pygame 中如何让角色移动到地图中间 在按下 方向键 向右后 地图向左移动

pygameSurfaceget_rect()方法返回值是一个Rect对象，该对象有一个move()方法可以用于移动矩形。move(x, y)函数有两个参数，第一个参数是 X 轴移动的距离，第二个参数是 Y 轴移动的距离。窗口的左上角是(0, 0)，如果是move(100, 50)就是左移100下移50。

我再win上测试没有问题，

import cv2

cap = cv2VideoCapture(0)

while 1:

ret, frame = capread()

k = cv2waitKey(1)

if k == 27:

break

cv2imshow("capture", frame)

caprelease()

cv2destroyAllWindows()

实在不行试试cv+pygame

代码如下：

import pygame

import cv2

cap = cv2VideoCapture(0)

ret, img = capread()

if not ret:

print("Can't read stream")

img = cv2transpose(img)

print('shape:', imgshape)

pygameinit()

screen = pygamedisplayset_mode((imgshape[0],imgshape[1]))

surface = pygamesurfaceSurface((imgshape[0], imgshape[1]))

running = True

while running:

for event in pygameeventget():

if eventtype == pygameQUIT:

running = False

ret, img = capread()

if not ret:

running = False

break

else:

img = cv2transpose(img)

pygamesurfarrayblit_array(surface, img)

screenblit(surface, (0,0))

pygamedisplayflip()

pygamequit()

把开发过程中常用的一些内容片段记录起来，下边内容是关于python通过PyGame绘制图像并保存为文件的内容，希望对大伙有较大好处。

''' pg_draw_circle_save101py

draw a blue solid circle on a white background

save the drawing to an image file

tested with Python 27 and PyGame 192 by vegaseat  16may2013

'''

import pygame as pg

# pygame uses (r, g, b) color tuples

white = (255, 255, 255)

blue = (0, 0, 255)

width = 300

height = 300

# create the display window

win = pgdisplayset_mode((width, height))

# optional title bar caption

pgdisplayset_caption("Pygame draw circle and save")

# default background is black, so make it white

winfill(white)

# draw a blue circle

# center coordinates (x, y)

radius = min(center)

# width of 0 (default) fills the circle

# otherwise it is thickness of outline

width = 0

# drawcircle(Surface, color, pos, radius, width)

pgdrawcircle(win, blue, center, radius, width)

# now save the drawing

# can save as bmp tga png or jpg

fname = "circle_bluepng"

pgimagesave(win, fname)

print("file {} has been saved"format(fname))

# update the display window to show the drawing

pgdisplayflip()

# event loop and exit conditions

# (press escape key or click window title bar x to exit)

while True:

    for event in pgeventget():

        if eventtype == pgQUIT:

            # most reliable exit on x click

            pgquit()

            raise SystemExit

        elif eventtype == pgKEYDOWN:

            # optional exit with escape key

            if eventkey == pgK_ESCAPE:

                pgquit()

                raise SystemExit

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