为什么 pygame 不显示我的图像或棋盘？
Why won't pygame display my images or chessboard?
我正在为我的 IDE 使用 Pycharm Community 2020。我正在使用 Python 3.7.4。我有 Pygame 1.9.6。
所以我一直在关注一个关于如何编写工作棋盘代码的 YouTube 视频，但它并没有向我展示我的棋盘及其上的棋子或任何东西。
我必须分开 python 个文件来为 Chess engine 做这个，它负责存储所有的有关国际象棋游戏当前状态的信息。还将负责确定当前状态下的有效移动。它还将保留移动日志。另一个是 Chess Main 这是主驱动程序文件。它负责处理用户输入并显示当前游戏状态对象。
国际象棋主要代码：
WIDTH = HEIGHT = 512 # 400 is another option
DIMENSION = 8 # dimensions of a chess board are 8x8
SQ_SIZE = HEIGHT // DIMENSION
MAX_FPS = 15 # for animations later on
IMAGES = {}
def loadImages():
pieces = ['wp', 'wR', 'wN', 'wB', 'wK', 'wQ', 'bp', 'bR', 'bN', 'bB', 'bK', 'bQ']
for piece in pieces:
IMAGES[piece] = p.transform.scale(p.image.load("images/" + piece + ".png"), (SQ_SIZE, SQ_SIZE))
# Note: we can access an image saving "IMAGES"['wp']
def main():
p.init()
screen = p.display.set_mode((WIDTH, HEIGHT))
clock = p.time.Clock()
screen.fill(p.Color("white"))
gs = ChessEngine.GameState()
loadImages() # only do this once, before the while loop
running = True
sqSelected = () # no square is selected, keep track of the last click of the user (tuple: (row, col))
player_Clicks = [] # keep track of player clicks (two tuples [6,4), (4,4)]
while running:
for e in p.event.get():
if e.type == p.QUIT:
running = False
elif e.type == p.MOUSEBUTTONDOWN:
location = p.mouse.get_pos() # (x, y) location of mouse
col = location[0]//SQ_SIZE
row = location[1]//SQ_SIZE
if sqSelected == (row, col): # the user clicked the same square twice
sqSelected = () # deselect
player_Clicks = [] # clear player clicks
else:
sqSelected = (row, col)
player_Clicks.append(sqSelected) # append for both 1st and 2nd clicks
if len(player_Clicks) == 2: # after 2nd click
move = ChessEngine.Move(player_Clicks[0], player_Clicks[1], gs.board)
print(move.getChessNotation())
gs.makeMove(move)
sqSelected = () # reset user clicks
player_Clicks = []
drawGameState(screen, gs)
clock.tick(MAX_FPS)
p.display.flip()
def drawGameState(screen, gs):
drawBoard(screen) # draw squares on the board
# add in piece highlighting or move suggestions (later)
drawPieces(screen, gs.board) # draw pieces on top of those squares
def drawBoard(screen):
colors = [p.Color("white"), p.Color("gray")]
for r in range(DIMENSION):
for c in range(DIMENSION):
color = colors[((r+c) % 2)]
p.draw.rect(screen, color, p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE))
def drawPieces(screen, board):
for r in range(DIMENSION):
for c in range(DIMENSION):
piece = board[r][c]
if piece != "--": # not empty square
screen.blit(IMAGES)[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE)
if __name__ == " __main__":
main()
国际象棋引擎代码：
class GameState:
def __init__(self):
# board is an 8x8 2d list, each element of lest has 2 character.
# The first character represents the color of the piece, "b" or "w"
# The second character represents the type of the piece, "K", "Q", "R", "B", "N", or "p"
# "--" - represents an empty space with no piece.
self.board = [
["bR", "bN", "bB", "bQ", "bK", "b8", "bN", "bR"],
["bp", "bp", "bp", "bp", "bp", "bp", "bp", "bp"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["wp", "wp", "wp", "wp", "wp", "wp", "wp", "wp"],
["wR", "wN", "wB", "wQ", "wK", "w8", "wN", "wR"]]
self.whiteToMove = True
self.moveLog = []
def makeMove(self, move):
self.board[move.startRow][move.startCol] = "--"
self.board[move.endRow][move.endCol] = move.pieceMoved
self.moveLog.append(move) # log the move so we can undo it later
self.whiteToMove = not self.whiteToMove # swap players
class Move():
# maps key to values
# key : value
ranksToRows = {"1": 7, "2": 6, "3": 5, "4": 4,
"5": 3, "6": 2, "7": 1, "8": 0}
rowsToRanks = {v: k for k, v in ranksToRows.items()}
filesToCols = {"a": 0, "b": 1, "c": 2, "d": 3,
"e": 4, "f": 5, "g": 6, "h": 7}
colsToFiles = {v: k for k, v in filesToCols.items()}
def __init__(self, startSq, endSq, board):
self.startRow = startSq[0]
self.startCol = startSq[1]
self.endRow = endSq[0]
self.endCol = endSq[1]
self.pieceMoved = board[self.startRow][self.startCol]
self.pieceCaptured = board[self.endRow][self.endCol]
def getChessNotation(self):
# you can add to make this like real chess notation
return self.getRankFile(self.startRow, self.startCol) * self.getRankFile(self.endRow, self.endCol)
def getRankFile(self, r, c):
return self.colsToFiles[c] * self.rowsToRanks[r]
所以我不知道为什么 Pycharm 没有显示板，如果你想要我看到的前 2 个视频的 YouTube 链接：
第 1 部分：https://www.youtube.com/watch?v=EnYui0e73Rs
第 2 部分：https://www.youtube.com/watch?v=o24J3WcBGLg
编辑：我修复了第一个答案中的问题并使其正常工作。另外必须修复 if name == "main": (main)。只是（主要）。现在它不想正确移动棋子或注册鼠标点击。我现在要抛出错误：
Traceback (most recent call last):
line 105, in <module>
main()
line 58, in main
print(move.getChessNotation())
line 52, in getChessNotation
return self.getRankFile(self.startRow, self.startCol) *
self.getRankFile(self.endRow, self.endCol)
line 55, in getRankFile
return self.colsToFiles[c] * self.rowsToRanks[r]
TypeError: can't multiply sequence by non-int of type 'str'
首先，blits 图像的语句在语义上是错误的：
creen.blit(IMAGES)[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE)
screen.blit(IMAGES[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE))
此外，数字“b8”和“w8”不存在。您可能指的是“bB”和“wB”。修正数字名称是 self.board 在 class GameState.
我正在为我的 IDE 使用 Pycharm Community 2020。我正在使用 Python 3.7.4。我有 Pygame 1.9.6。 所以我一直在关注一个关于如何编写工作棋盘代码的 YouTube 视频，但它并没有向我展示我的棋盘及其上的棋子或任何东西。
我必须分开 python 个文件来为 Chess engine 做这个，它负责存储所有的有关国际象棋游戏当前状态的信息。还将负责确定当前状态下的有效移动。它还将保留移动日志。另一个是 Chess Main 这是主驱动程序文件。它负责处理用户输入并显示当前游戏状态对象。 国际象棋主要代码：
WIDTH = HEIGHT = 512 # 400 is another option
DIMENSION = 8 # dimensions of a chess board are 8x8
SQ_SIZE = HEIGHT // DIMENSION
MAX_FPS = 15 # for animations later on
IMAGES = {}
def loadImages():
pieces = ['wp', 'wR', 'wN', 'wB', 'wK', 'wQ', 'bp', 'bR', 'bN', 'bB', 'bK', 'bQ']
for piece in pieces:
IMAGES[piece] = p.transform.scale(p.image.load("images/" + piece + ".png"), (SQ_SIZE, SQ_SIZE))
# Note: we can access an image saving "IMAGES"['wp']
def main():
p.init()
screen = p.display.set_mode((WIDTH, HEIGHT))
clock = p.time.Clock()
screen.fill(p.Color("white"))
gs = ChessEngine.GameState()
loadImages() # only do this once, before the while loop
running = True
sqSelected = () # no square is selected, keep track of the last click of the user (tuple: (row, col))
player_Clicks = [] # keep track of player clicks (two tuples [6,4), (4,4)]
while running:
for e in p.event.get():
if e.type == p.QUIT:
running = False
elif e.type == p.MOUSEBUTTONDOWN:
location = p.mouse.get_pos() # (x, y) location of mouse
col = location[0]//SQ_SIZE
row = location[1]//SQ_SIZE
if sqSelected == (row, col): # the user clicked the same square twice
sqSelected = () # deselect
player_Clicks = [] # clear player clicks
else:
sqSelected = (row, col)
player_Clicks.append(sqSelected) # append for both 1st and 2nd clicks
if len(player_Clicks) == 2: # after 2nd click
move = ChessEngine.Move(player_Clicks[0], player_Clicks[1], gs.board)
print(move.getChessNotation())
gs.makeMove(move)
sqSelected = () # reset user clicks
player_Clicks = []
drawGameState(screen, gs)
clock.tick(MAX_FPS)
p.display.flip()
def drawGameState(screen, gs):
drawBoard(screen) # draw squares on the board
# add in piece highlighting or move suggestions (later)
drawPieces(screen, gs.board) # draw pieces on top of those squares
def drawBoard(screen):
colors = [p.Color("white"), p.Color("gray")]
for r in range(DIMENSION):
for c in range(DIMENSION):
color = colors[((r+c) % 2)]
p.draw.rect(screen, color, p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE))
def drawPieces(screen, board):
for r in range(DIMENSION):
for c in range(DIMENSION):
piece = board[r][c]
if piece != "--": # not empty square
screen.blit(IMAGES)[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE)
if __name__ == " __main__":
main()
国际象棋引擎代码：
class GameState:
def __init__(self):
# board is an 8x8 2d list, each element of lest has 2 character.
# The first character represents the color of the piece, "b" or "w"
# The second character represents the type of the piece, "K", "Q", "R", "B", "N", or "p"
# "--" - represents an empty space with no piece.
self.board = [
["bR", "bN", "bB", "bQ", "bK", "b8", "bN", "bR"],
["bp", "bp", "bp", "bp", "bp", "bp", "bp", "bp"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["--", "--", "--", "--", "--", "--", "--", "--"],
["wp", "wp", "wp", "wp", "wp", "wp", "wp", "wp"],
["wR", "wN", "wB", "wQ", "wK", "w8", "wN", "wR"]]
self.whiteToMove = True
self.moveLog = []
def makeMove(self, move):
self.board[move.startRow][move.startCol] = "--"
self.board[move.endRow][move.endCol] = move.pieceMoved
self.moveLog.append(move) # log the move so we can undo it later
self.whiteToMove = not self.whiteToMove # swap players
class Move():
# maps key to values
# key : value
ranksToRows = {"1": 7, "2": 6, "3": 5, "4": 4,
"5": 3, "6": 2, "7": 1, "8": 0}
rowsToRanks = {v: k for k, v in ranksToRows.items()}
filesToCols = {"a": 0, "b": 1, "c": 2, "d": 3,
"e": 4, "f": 5, "g": 6, "h": 7}
colsToFiles = {v: k for k, v in filesToCols.items()}
def __init__(self, startSq, endSq, board):
self.startRow = startSq[0]
self.startCol = startSq[1]
self.endRow = endSq[0]
self.endCol = endSq[1]
self.pieceMoved = board[self.startRow][self.startCol]
self.pieceCaptured = board[self.endRow][self.endCol]
def getChessNotation(self):
# you can add to make this like real chess notation
return self.getRankFile(self.startRow, self.startCol) * self.getRankFile(self.endRow, self.endCol)
def getRankFile(self, r, c):
return self.colsToFiles[c] * self.rowsToRanks[r]
所以我不知道为什么 Pycharm 没有显示板，如果你想要我看到的前 2 个视频的 YouTube 链接：
第 1 部分：https://www.youtube.com/watch?v=EnYui0e73Rs
第 2 部分：https://www.youtube.com/watch?v=o24J3WcBGLg
编辑：我修复了第一个答案中的问题并使其正常工作。另外必须修复 if name == "main": (main)。只是（主要）。现在它不想正确移动棋子或注册鼠标点击。我现在要抛出错误：
Traceback (most recent call last):
line 105, in <module>
main()
line 58, in main
print(move.getChessNotation())
line 52, in getChessNotation
return self.getRankFile(self.startRow, self.startCol) *
self.getRankFile(self.endRow, self.endCol)
line 55, in getRankFile
return self.colsToFiles[c] * self.rowsToRanks[r]
TypeError: can't multiply sequence by non-int of type 'str'
首先，blits 图像的语句在语义上是错误的：
creen.blit(IMAGES)[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE)
screen.blit(IMAGES[piece], p.Rect(c * SQ_SIZE, r * SQ_SIZE, SQ_SIZE, SQ_SIZE))
此外，数字“b8”和“w8”不存在。您可能指的是“bB”和“wB”。修正数字名称是 self.board 在 class GameState.