如何在Swift中设置UILabel的textColor(How to set textColor of UILabel in Swift)

 我希望我的问题是正确的。 你必须在每一步都检查球员的位置。 我建议您在每次移动时定义区域（例如go_right ），您需要检查玩家是否在这些边界内。 如果是True ，则可以加载另一个脚本。 这是一个快速而肮脏的解决方案： 
 
def go_fwd(event):
    areal.focus_set()
    me.configure(me.x, me.y-2)
    check_if_player_enters_region(me)

def go_bwd(event):
    areal.focus_set()
    me.configure(me.x, me.y+2)
    check_if_player_enters_region(me)

def go_left(event):
    areal.focus_set()
    me.configure(me.x-2, me.y)
    check_if_player_enters_region(me)

def go_right(event):
    areal.focus_set()
    me.configure(me.x+2, me.y)
    check_if_player_enters_region(me)

def check_if_player_enters_region(player):
    ## Define your Areas here
    if(is_in_region(player, 20, 20, 10, 10)):
        print "enter region 1, load script xxx"
    if(is_in_region(player, 50, 50, 10, 10)):
        print "enter region 2, load script xxx"   

    playarea.create_rectangle(20,20,30,30, fill='blue') ## this is just for visualisation, delete this line
    playarea.create_rectangle(50,50,60,60, fill='blue') ## this is just for visualisation, delete this line

def is_in_region(player, x, y, width, height): # define region boundries
    if((player.x >= x and player.x <= x+width) and  ## check x boundries
       (player.y >= y and player.y-2 <= y+height)): ## check y boundries
        return True
    return False

dw = tk.tk()
dw.title('Erebos')

me = player(0,0)

areal = tk.Frame(master=dw, width=20000, height=600, bg='black')
areal.pack_propagate(0)
areal.pack(fill=tk.BOTH, expand=bool(dw)-100)
areal.bind("<1>", lambda event: areal.focus_set())
dw.bind("<Up>", go_fwd)
dw.bind("<Down>", go_bwd)
dw.bind("<Left>", go_left)
dw.bind("<Right>", go_right)

playarea = tk.Canvas(width=800, height=500, master=areal, bg='white')
playarea.pack()
playarea.create_rectangle(20,20,30,30, fill='blue') ## this is just for visualisation, delete this line
playarea.create_rectangle(50,50,60,60, fill='blue') ## this is just for visualisation, delete this line
me.zeichne(playarea)
dw.mainloop()
 
 我只检查播放器的中心，通常你会检查播放器的“盒子”。 

I hope i get your question right. You have to check the players position on every move. I recommend that you define areas, on every move (e.g. go_right) you need to check if the player is in those boundaries. If that is True you can load another script. Here is a quick and dirty solution:
 
def go_fwd(event):
    areal.focus_set()
    me.configure(me.x, me.y-2)
    check_if_player_enters_region(me)

def go_bwd(event):
    areal.focus_set()
    me.configure(me.x, me.y+2)
    check_if_player_enters_region(me)

def go_left(event):
    areal.focus_set()
    me.configure(me.x-2, me.y)
    check_if_player_enters_region(me)

def go_right(event):
    areal.focus_set()
    me.configure(me.x+2, me.y)
    check_if_player_enters_region(me)

def check_if_player_enters_region(player):
    ## Define your Areas here
    if(is_in_region(player, 20, 20, 10, 10)):
        print "enter region 1, load script xxx"
    if(is_in_region(player, 50, 50, 10, 10)):
        print "enter region 2, load script xxx"   

    playarea.create_rectangle(20,20,30,30, fill='blue') ## this is just for visualisation, delete this line
    playarea.create_rectangle(50,50,60,60, fill='blue') ## this is just for visualisation, delete this line

def is_in_region(player, x, y, width, height): # define region boundries
    if((player.x >= x and player.x <= x+width) and  ## check x boundries
       (player.y >= y and player.y-2 <= y+height)): ## check y boundries
        return True
    return False

dw = tk.tk()
dw.title('Erebos')

me = player(0,0)

areal = tk.Frame(master=dw, width=20000, height=600, bg='black')
areal.pack_propagate(0)
areal.pack(fill=tk.BOTH, expand=bool(dw)-100)
areal.bind("<1>", lambda event: areal.focus_set())
dw.bind("<Up>", go_fwd)
dw.bind("<Down>", go_bwd)
dw.bind("<Left>", go_left)
dw.bind("<Right>", go_right)

playarea = tk.Canvas(width=800, height=500, master=areal, bg='white')
playarea.pack()
playarea.create_rectangle(20,20,30,30, fill='blue') ## this is just for visualisation, delete this line
playarea.create_rectangle(50,50,60,60, fill='blue') ## this is just for visualisation, delete this line
me.zeichne(playarea)
dw.mainloop()
 
I only check the center of the player, normally you do check the "box" of the player.