class MapGeometry():
+ def __init__(self, size):
+ self.size = size
+
def get_directions(self):
directions = []
for name in dir(self):
def move(self, start_pos, direction):
mover = getattr(self, 'move_' + direction)
- return mover(start_pos)
+ target = mover(start_pos)
+ if target.y < 0 or target.x < 0 or \
+ target.y >= self.size.y or target.x >= self.size.x:
+ return None
+ return target
def move_DOWN(self, start_pos):
return YX(start_pos.y + 1, start_pos.x)
+
+
+
+class Map():
+
+ def __init__(self, map_size):
+ self.size = map_size
+ self.terrain = '.' * self.size_i
+
+ def __getitem__(self, yx):
+ return self.terrain[self.get_position_index(yx)]
+
+ def __setitem__(self, yx, c):
+ pos_i = self.get_position_index(yx)
+ if type(c) == str:
+ self.terrain = self.terrain[:pos_i] + c + self.terrain[pos_i + 1:]
+ else:
+ self.terrain[pos_i] = c
+
+ @property
+ def size_i(self):
+ return self.size.y * self.size.x
+
+ 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('too large map line width %s' % width_line)
+ self.terrain = self.terrain[:y * width_map] + line +\
+ self.terrain[(y + 1) * width_map:]
+
+ def get_position_index(self, yx):
+ return yx.y * self.size.x + yx.x
+
+ def lines(self):
+ width = self.size.x
+ for y in range(self.size.y):
+ yield (y, self.terrain[y * width:(y + 1) * width])