Mini-project # 3 - "Stopwatch: The Game"-优快云博客

本文介绍了一个使用SimpleGUI库实现的简易定时器游戏项目。作者在博客中分享了游戏的源代码，并提到了在开发过程中遇到的主要问题：如何实现在特定时间点准确显示更新后的计时器读数。

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= =上周的作业，一直忘记更新啦

这周是做一个定时器游戏。。然而因为永远不能停在正确的位置导致测试好麻烦 - -

有一个问题是：

　　好像不能每次发生改变的时候再用改变字符串的形式使输出改变，而只能在参数里调转成字符串的函数才能在正常的时间点显示T T

　　原因不知。。

http://www.codeskulptor.org/#user40_Dfn3DhnkwjfR7Mb.py

import simplegui
# define global variables
time = 0
isrunning = False
succ = 0
tot = 0


# define helper function format that converts time
# in tenths of seconds into formatted string A:BC.D
def format(t):
    D = t % 10;
    t /= 10;
    A = t / 60;
    B = t % 60
    C = B % 10;
    B /= 10
    return str(A)+":"+str(B)+str(C)+"."+str(D)
    
# define event handlers for buttons; "Start", "Stop", "Reset"
def start_game():
    global time, isrunning
    isrunning = True
    timer.start()
    
def stop_game():
    global tot, isrunning, succ
    timer.stop()
    if isrunning == True:
        tot += 1
        if time % 10 == 0 :
            succ += 1
    isrunning = False
    
def Clear():
    global time, succ, tot
    time = 0
    succ = 0
    tot = 0
    isrunning = False
    timer.stop()
    
# define event handler for timer with 0.1 sec interval
def tick():
    global time
    time += 1
# define draw handler
def draw(canvas):
    canvas.draw_text(format(time), [200,215],32,"White")
    canvas.draw_text(str(succ)+'/'+str(tot), [340,20], 28, "Blue")
    
# create frame
f = simplegui.create_frame("Timer Game", 400, 400)
timer = simplegui.create_timer(100, tick)
start = f.add_button("Start", start_game)
stop = f.add_button("Stop", stop_game)
reset = f.add_button("Reset", Clear)

# register event handlers
f.set_draw_handler(draw)

# start frame
f.start()

# Please remember to review the grading rubric