python zelle graphics checkMouse()?

时间:2013-11-09 19:40:00

标签: python zelle-graphics

yes_box = Rectangle(Point(200, 150),Point(350,50))
yes_box.setOutline('blue')
yes_box.setWidth(1)
yes_box.draw(graphics_win)









def mouse_check(arg1): 
     ??????
嘿,有一个很快就可能很明显的问题,但让我真的很难过。所以我正在编写一个程序(一个游戏),要求你点击yes_box的boungs(如上图所示)。我需要编写一个函数来检查鼠标单击是否在矩形的边界内,如果是,则返回'y',如果不是,则返回'n'。

我知道您需要使用win.getMouse()和win.checkMouse()函数,但我不知道如何让python确定该点击是否在矩形对象的边界内?任何帮助将不胜感激!

2 个答案:

答案 0 :(得分:0)

你可以使用这个功能:

p1 = rectangle.getP1()
rx1 = p1.getX()
ry1 = p1.getY()

p2 = rectangle.getP2()
rx2 = p2.getX()
ry2 = p2.getY()

x1 = point.getX()
y1 = point.getY()


if x1>=rx1 and y1<=ry1 and x1<=rx2 and y1>= ry2:

    return y
else: 
    return n 

其中point应该是用户点击的点。和矩形是您想要知道用户是否单击的矩形。

答案 1 :(得分:0)

您只需要获取win.getMouse()返回的点,并确保x和y值在边界内。我在inside函数中执行此操作,然后使用此布尔值在窗口上显示“y”或“n”

from graphics import *      

def inside(test_Point, P1, P2):
    ''' 
    determines if the test_Point is inside
    the rectangle with P1 and P2 at opposite corners

    assumes P1 is upper left and P2 is lower right
    '''
    tX = test_Point.getX()
    tY = test_Point.getY()

    # first the x value must be in bounds
    t1 = (P1.getX() <= tX) and (tX <= P2.getX())

    if not t1:
        return False
    else:
        return (P2.getY() <= tY) and (tY <= P1.getY())


win = GraphWin("Box", 600, 600)

yes_box = Rectangle(Point(200, 150), Point(350, 50))
yes_box.setOutline('blue')
yes_box.setWidth(1)
yes_box.draw(win)

# where was the mouse clicked?
t = win.getMouse()

# is that inside the box?
if inside(t, yes_box.getP1(), yes_box.getP2()):
    text = 'y'
else:
    text = 'n'

# draw the 'y' or 'n' on the screen
testText = Text(Point(200,300), text)
testText.draw(win)

exitText = Text(Point(200,350), 'Click anywhere to quit')
exitText.draw(win)

win.getMouse()
win.close()