+ def set_line(self, y, line):
+ height_map = self.size.y
+ width_map = self.size.x
+ if y >= height_map:
+ raise ArgError('too large row number %s' % y)
+ width_line = len(line)
+ if width_line != width_map:
+ raise ArgError('map line width %s unequal map width %s' % (width_line, width_map))
+ self.terrain = self.terrain[:y * width_map] + line +\
+ self.terrain[(y + 1) * width_map:]
+