def main():
win = GraphWin('Animation', 640, 480, autoflush=False)
win.setCoords(-10, -10, 210, 155)
Line(Point(-10, 0), Point(210, 0)).draw(win)
for x in range(0, 210, 50):
Text(Point(x, -5), str(x)).draw(win)
Line(Point(x, 0), Point(x, 2)).draw(win)
while True:
inputWin = InputDialog(45, 40, 2)
choice = inputWin.interact()
inputWin.close()
if choice == 'Quit':
break
angle, vel, height = inputWin.getValues()
shot = ShotTracker(win, angle, vel, height)
while 0 <= shot.getY() and shot.getX() > -10 and shot.getX() <= 210:
shot.update(1/50)
update(50)
# 显示最大高度
maxHeight = "最大高度: %.2f 米" % shot.proj.maxY
maxHeightWin = GraphWin('Max Height', 240, 180)
Text(Point(120, 90), maxHeight).draw(maxHeightWin)
