# -----------------------------------------------------------------

# 功能模块区，主要放置函数

def draw(p,img,x,y):

    #绘制图像

    global origin_x,origin_y,size

    p.shape(img)

    p.goto(origin_x+x*size,origin_y-y*size)

    p.stamp()

def move_up():

    global grid_y,grid_x,grid,result

    if result !=2:

        return

    grid_y -= 1

    if grid[grid_y][grid_x]==1:

        grid_y += 1

        return

    elif grid_y < 0:

        grid_y +=1

        return

    update()

    

def move_down():

    global grid_y,grid_x,grid,height,result

    if result !=2:

        return

    grid_y += 1

    if grid[grid_y][grid_x]==1:

        grid_y -= 1

        return

    elif grid_y > height-1:

        grid_y -=1

        return

    update()

def move_left():

    global grid_y,grid_x,grid,width,result

    if result !=2:

        return

    grid_x -= 1

    if grid[grid_y][grid_x]==1:

        grid_x += 1

        return 

    elif grid_x > width-1:

        grid_x +=1

        return

    update()

def move_right():

    global grid_y,grid_x,grid,width,result

    if result !=2:

        return

    grid_x += 1

    if grid[grid_y][grid_x]==1:

        grid_x -= 1

        return

    elif grid_x <0:

        grid_x -=1

        return

    update()

def update():

    '''

    更新地图信息

    '''

    global grid,grid_x,grid_y

    if grid[grid_y][grid_x] == 2:

        grid[grid_y][grid_x] = 3

    elif grid[grid_y][grid_x] == 3:

        grid[grid_y][grid_x]= 4

    update_result()

def update_result():

    '''

    更新游戏状态

    '''   

    global grid,grid_x,grid_y,result

    if grid[grid_y][grid_x] == 4:

        result = 0

    else:

        result = 1

        for i in grid:

            if 2 in i:    

                result = 2

                break    

def next_level():

    global result,level_num,grid_x,grid_y,width,height,origin_x,origin_y,size

    if result ==1:

        level_num +=1

    result=2

    grid = copy.deepcopy(level_store[level_num-1])

    grid_x = position_store[level_num-1][0]  

    grid_y = position_store[level_num-1][1]

    width = len(grid[0])  

    height = len(grid)  

    origin_x = 0 - size * (width - 1) / 2  

    origin_y = 0 + size * (height - 1) / 2  

    

# ------------------------------------------------------------

# 基本信息区，放置游戏相关的一些信息

''' 地图二维列表信息  0: 空  1：墙壁  2：通道  3：目标  4：窟窿  '''  

level_store =[[[1, 1, 1, 1, 1, 1],    

               [1, 2, 2, 2, 2, 1],    

               [1, 2, 1, 2, 2, 1],    

               [1, 3, 1, 2, 2, 1],    

               [1, 3, 2, 2, 2, 1],    

               [0, 1, 1, 1, 1, 1]],

              [[2, 2, 2, 2, 2, 2],    

               [2, 2, 2, 2, 2, 2],    

               [2, 1, 1, 2, 2, 2],    

               [2, 3, 2, 2, 3, 2],    

               [2, 2, 2, 2, 2, 2],    

               [2, 2, 2, 2, 2, 2]]]  

position_store = [[1,3], [4,1]]   

level_num = 1

grid = copy.deepcopy(level_store[level_num-1])

size = 70  

width = len(grid[0])  

height= len(grid)   

origin_x = 0 - size * (width - 1) / 2  

origin_y = 0 + size * (height - 1) / 2  

# 角色初始位置  

grid_x = position_store[level_num-1][0]  

grid_y = position_store[level_num-1][1]   

# 游戏状态  

'''  result    

0: 游戏结束    1：过关    2：游戏进行中'''  

result = 2    

# ------------------------------------------------------------

# 操作事件区，放置键鼠操作相关的内容

turtle.onkey(move_up,'Up')

turtle.onkey(move_down,'Down')

turtle.onkey(move_left,'Left')

turtle.onkey(move_right,'Right')

turtle.onkey(next_level,'Return')

turtle.listen()

# ------------------------------------------------------------

# 场景素材区，添加游戏画面相关的素材

# 添加素材

tile_shapes = ['空.gif', '墙壁.gif', '通道.gif', '目标.gif','窟窿.gif']

for i in tile_shapes:

    turtle.addshape(i)

turtle.addshape('编程猫.gif')

turtle.addshape('遮罩.gif')    

result_shapes = ['失败.gif', '成功.gif', '空.gif']    

for i in result_shapes:    

    turtle.addshape(i)    

    

# ------------------------------------------------------------

# 画面绘制区，绘制场景用的画笔，绘制场景的代码

p = turtle.Pen()

p.penup()

turtle.tracer(False)

p.hideturtle()

p.goto(origin_x, origin_y)

while True:

    p.clear()

    for i in range(len(grid)):

        for j in range(len(grid[i])):

            draw(p,tile_shapes[grid[i][j]],j,i)

#绘制编程猫

    draw(p,'编程猫.gif',grid_x,grid_y)

    draw(p,'遮罩.gif',grid_x,grid_y)

    draw(p, result_shapes[result], (width-1)/2, (height-1)/2)   

    turtle.update()

turtle.done()