viewer.py 文件源码

def _handleKeypress(self, key):
        if self._clicked == None or self._moveEvent == None:
            return False
        column = self._clicked[0]
        row = self._clicked[1]

        target = None
        if key == pygame.K_LEFT:
            if column > 0:
                target = (column-1, row)
        elif key == pygame.K_RIGHT:
            if column < self._map.cols - 1:
                target = (column+1, row)
        elif key == pygame.K_UP:
            if row > 0:
                target = (column, row-1)
        elif key == pygame.K_DOWN:
            if row < self._map.rows - 1:
                target = (column, row+1)

        if target != None:
            self._moveEvent(self._clicked, target)
            self._clicked = target