总体而言，我已经创建了棋盘并将棋子放置在棋盘上，并且我一直在使用tkinter进行此操作，我的问题在于我创建了一个称为棋子的字典，并且我有一个函数可以调用鼠标的位置，但是如果空间上有任何一块，我将无法得到命令返回：
mousex = 0
mousey = 0
class GameBoard(tk.Frame):
def __init__(self, parent, rows=8, columns=8, size=64, color1="white", color2="gray"):
'''size is the size of a square, in pixels'''
self.rows = rows
self.columns = columns
self.size = size
self.color1 = color1
self.color2 = color2
self.pieces = {}
self.imageref ={}
canvas_width = columns * size
canvas_height = rows * size
tk.Frame.__init__(self, parent)
self.canvas = tk.Canvas(self, width=canvas_width, height=canvas_height)
self.canvas.pack(side="top", fill="both", expand=True)
# this binding will cause a refresh if the user interactively
# changes the window size
self.canvas.bind("<Configure>", self.refresh)
#this is how i created the pieces in the first place
def addpiece(self, name, image, row, column):
'''Add a piece to the playing board'''
self.canvas.create_image(0,0, image=image, tags=(name, "piece"), anchor="c")
self.placepiece(name, row, column)
#this allows me to move specific pieces
def placepiece(self, name, row, column):
'''Place a piece at the given row/column'''
self.pieces[name] = (row, column)
x0 = (column * self.size) + int(self.size/2)
y0 = (row * self.size) + int(self.size/2)
self.canvas.coords(name, x0, y0)
#this sets up the board
def refresh(self, event):
'''Redraw the board, possibly in response to window being resized'''
xsize = int((event.width-1) / self.columns)
ysize = int((event.height-1) / self.rows)
self.size = min(xsize, ysize)
self.canvas.delete("square")
color = self.color2
for row in range(self.rows):
color = self.color1 if color == self.color2 else self.color2
for col in range(self.columns):
x1 = (col * self.size)
y1 = (row * self.size)
x2 = x1 + self.size
y2 = y1 + self.size
self.canvas.create_rectangle(x1, y1, x2, y2, outline="black", fill=color, tags="square")
color = self.color1 if color == self.color2 else self.color2
for name in self.pieces:
self.placepiece(name, self.pieces[name][0], self.pieces[name][1])
self.canvas.tag_raise("piece")
self.canvas.tag_lower("square")
#this finds where the mouse is and returns it also this is where im trying to get the dict bit to work
def callback(self, event):
print ("clicked at", int(event.x/64), int(event.y/64))
x1 = int(event.x/64)
y1 = int(event.y/64)
pieces = self.pieces
print(pieces)
for x0, y0 in pieces.items():
if x0 == x1 and y0 == y1:
print(pieces)
return int(event.y/64), int(event.x/64)
#this is where all the pieces get created the first time and placed on the board
if __name__ == "__main__":
root = tk.Tk()
board = GameBoard(root)
board.pack(side="top", fill="both", expand=True, padx=0, pady=0)
#bishops
bishopb = tk.PhotoImage(file = 'D:/comp coursework/bishopb.png')
board.addpiece("bishopb1",bishopb, 0,2)
bishopw = tk.PhotoImage(file = 'D:/comp coursework/bishopw.png')
board.addpiece("bishopw1",bishopw, 7,2)
board.addpiece("bishopb2",bishopb, 0,5)
board.addpiece("bishopw2",bishopw, 7,5)
#kings
kingb = tk.PhotoImage(file = 'D:/comp coursework/kingb.png')
kingw = tk.PhotoImage(file = 'D:/comp coursework/kingw.png')
board.addpiece("kingb",kingb, 0,4)
board.addpiece("kingw",kingw, 7,4)
#queens
queenb = tk.PhotoImage(file = 'D:/comp coursework/queenb.png')
queenw = tk.PhotoImage(file = 'D:/comp coursework/queenw.png')
board.addpiece("queenb",queenb, 0,3)
board.addpiece("queenw",queenw, 7,3)
#kinghts
knightb = tk.PhotoImage(file = 'D:/comp coursework/knightb.png')
knightw = tk.PhotoImage(file = 'D:/comp coursework/knightw.png')
board.addpiece("knightb1",knightb, 0,1)
board.addpiece("knightw1",knightw, 7,1)
board.addpiece("knightb2",knightb, 0,6)
board.addpiece("knightw2",knightw, 7,6)
#rooks
rookb = tk.PhotoImage(file = 'D:/comp coursework/rookb.png')
rookw = tk.PhotoImage(file = 'D:/comp coursework/rookw.png')
board.addpiece("rookb1",rookb, 0,0)
board.addpiece("rookw1",rookw, 7,0)
board.addpiece("rookb2",rookb, 0,7)
board.addpiece("rookw2",rookw, 7,7)
#pawns
pawnb = tk.PhotoImage(file = 'D:/comp coursework/pawnb.png')
pawnw = tk.PhotoImage(file = 'D:/comp coursework/pawnw.png')
board.addpiece("pawn1b",pawnb, 1,0)
board.addpiece("pawn2b",pawnb, 1,1)
board.addpiece("pawn3b",pawnb, 1,2)
board.addpiece("pawn4b",pawnb, 1,3)
board.addpiece("pawn5b",pawnb, 1,4)
board.addpiece("pawn6b",pawnb, 1,5)
board.addpiece("pawn7b",pawnb, 1,6)
board.addpiece("pawn8b",pawnb, 1,7)
board.addpiece("pawn1w",pawnw, 6,0)
board.addpiece("pawn2w",pawnw, 6,1)
board.addpiece("pawn3w",pawnw, 6,2)
board.addpiece("pawn4w",pawnw, 6,3)
board.addpiece("pawn5w",pawnw, 6,4)
board.addpiece("pawn6w",pawnw, 6,5)
board.addpiece("pawn7w",pawnw, 6,6)
board.addpiece("pawn8w",pawnw, 6,7)
board.placepiece("bishopb1",4,4)
root.bind("<Button-1>", board.callback)
#board.placepiece("pawn8w",)
root.mainloop()