1 from plomrogue.errors import ArgError
7 def __init__(self, size=(0, 0)):
9 self.terrain = '?'*self.size_i
11 def __getitem__(self, yx):
12 return self.terrain[self.get_position_index(yx)]
14 def __setitem__(self, yx, c):
15 pos_i = self.get_position_index(yx)
17 self.terrain = self.terrain[:pos_i] + c + self.terrain[pos_i + 1:]
19 self.terrain[pos_i] = c
22 """Iterate over YX position coordinates."""
23 for y in range(self.size[0]):
24 for x in range(self.size[1]):
29 return self.size[0] * self.size[1]
31 def set_line(self, y, line):
32 height_map = self.size[0]
33 width_map = self.size[1]
35 raise ArgError('too large row number %s' % y)
36 width_line = len(line)
37 if width_line > width_map:
38 raise ArgError('too large map line width %s' % width_line)
39 self.terrain = self.terrain[:y * width_map] + line +\
40 self.terrain[(y + 1) * width_map:]
42 def get_position_index(self, yx):
43 return yx[0] * self.size[1] + yx[1]
47 for y in range(self.size[0]):
48 yield (y, self.terrain[y * width:(y + 1) * width])
50 def get_fov_map(self, yx):
51 return self.fov_map_type(self, yx)
53 def get_directions(self):
55 for name in dir(self):
56 if name[:5] == 'move_':
57 directions += [name[5:]]
60 def get_neighbors(self, pos):
63 if not hasattr(self, 'neighbors_to'):
64 self.neighbors_to = {}
65 if pos in self.neighbors_to:
66 return self.neighbors_to[pos]
67 for direction in self.get_directions():
68 neighbors[direction] = None
69 neighbor_pos = self.move(pos, direction)
71 neighbors[direction] = neighbor_pos
72 self.neighbors_to[pos] = neighbors
75 def new_from_shape(self, init_char):
77 new_map = copy.deepcopy(self)
79 new_map[pos] = init_char
82 def move(self, start_pos, direction):
83 mover = getattr(self, 'move_' + direction)
84 new_pos = mover(start_pos)
85 if new_pos[0] < 0 or new_pos[1] < 0 or \
86 new_pos[0] >= self.size[0] or new_pos[1] >= self.size[1]:
92 class MapWithLeftRightMoves(Map):
94 def move_LEFT(self, start_pos):
95 return (start_pos[0], start_pos[1] - 1)
97 def move_RIGHT(self, start_pos):
98 return (start_pos[0], start_pos[1] + 1)
102 class MapSquare(MapWithLeftRightMoves):
104 def move_UP(self, start_pos):
105 return (start_pos[0] - 1, start_pos[1])
107 def move_DOWN(self, start_pos):
108 return (start_pos[0] + 1, start_pos[1])
112 class MapHex(MapWithLeftRightMoves):
114 def __init__(self, *args, **kwargs):
115 super().__init__(*args, **kwargs)
116 self.fov_map_type = FovMapHex
118 def move_UPLEFT(self, start_pos):
119 if start_pos[0] % 2 == 1:
120 return (start_pos[0] - 1, start_pos[1] - 1)
122 return (start_pos[0] - 1, start_pos[1])
124 def move_UPRIGHT(self, start_pos):
125 if start_pos[0] % 2 == 1:
126 return (start_pos[0] - 1, start_pos[1])
128 return (start_pos[0] - 1, start_pos[1] + 1)
130 def move_DOWNLEFT(self, start_pos):
131 if start_pos[0] % 2 == 1:
132 return (start_pos[0] + 1, start_pos[1] - 1)
134 return (start_pos[0] + 1, start_pos[1])
136 def move_DOWNRIGHT(self, start_pos):
137 if start_pos[0] % 2 == 1:
138 return (start_pos[0] + 1, start_pos[1])
140 return (start_pos[0] + 1, start_pos[1] + 1)
146 def __init__(self, source_map, yx):
147 self.source_map = source_map
148 self.size = self.source_map.size
149 self.fov_radius = (self.size[0] / 2) - 0.5
150 self.terrain = '?' * self.size_i
152 self.shadow_cones = []
153 self.circle_out(yx, self.shadow_process_hex)
155 def shadow_process_hex(self, yx, distance_to_center, dir_i, dir_progress):
156 # Possible optimization: If no shadow_cones yet and self[yx] == '.',
158 CIRCLE = 360 # Since we'll float anyways, number is actually arbitrary.
160 def correct_arm(arm):
165 def in_shadow_cone(new_cone):
166 for old_cone in self.shadow_cones:
167 if old_cone[0] >= new_cone[0] and \
168 new_cone[1] >= old_cone[1]:
169 #print('DEBUG shadowed by:', old_cone)
171 # We might want to also shade hexes whose middle arm is inside a
172 # shadow cone for a darker FOV. Note that we then could not for
173 # optimization purposes rely anymore on the assumption that a
174 # shaded hex cannot add growth to existing shadow cones.
177 def merge_cone(new_cone):
179 for old_cone in self.shadow_cones:
180 if new_cone[0] > old_cone[0] and \
181 (new_cone[1] < old_cone[0] or
182 math.isclose(new_cone[1], old_cone[0])):
183 #print('DEBUG merging to', old_cone)
184 old_cone[0] = new_cone[0]
185 #print('DEBUG merged cone:', old_cone)
187 if new_cone[1] < old_cone[1] and \
188 (new_cone[0] > old_cone[1] or
189 math.isclose(new_cone[0], old_cone[1])):
190 #print('DEBUG merging to', old_cone)
191 old_cone[1] = new_cone[1]
192 #print('DEBUG merged cone:', old_cone)
197 #print('DEBUG CONE', cone, '(', step_size, distance_to_center, number_steps, ')')
198 if in_shadow_cone(cone):
201 if self.source_map[yx] != '.':
202 #print('DEBUG throws shadow', cone)
204 while merge_cone(cone):
207 self.shadow_cones += [cone]
210 step_size = (CIRCLE/len(self.circle_out_directions)) / distance_to_center
211 number_steps = dir_i * distance_to_center + dir_progress
212 left_arm = correct_arm(-(step_size/2) - step_size*number_steps)
213 right_arm = correct_arm(left_arm - step_size)
214 # Optimization potential: left cone could be derived from previous
215 # right cone. Better even: Precalculate all cones.
216 if right_arm > left_arm:
217 eval_cone([left_arm, 0])
218 eval_cone([CIRCLE, right_arm])
220 eval_cone([left_arm, right_arm])
222 def basic_circle_out_move(self, pos, direction):
223 """Move position pos into direction. Return whether still in map."""
224 mover = getattr(self, 'move_' + direction)
226 if pos[0] < 0 or pos[1] < 0 or \
227 pos[0] >= self.size[0] or pos[1] >= self.size[1]:
231 def circle_out(self, yx, f):
232 # Optimization potential: Precalculate movement positions. (How to check
233 # circle_in_map then?)
234 # Optimization potential: Precalculate what hexes are shaded by what hex
235 # and skip evaluation of already shaded hexes. (This only works if hex
236 # shading implies they completely lie in existing shades; otherwise we
237 # would lose shade growth through hexes at shade borders.)
239 # TODO: Start circling only in earliest obstacle distance.
240 # TODO: get rid of circle_in_map logic
244 #print('DEBUG CIRCLE_OUT', yx)
246 if distance > self.fov_radius:
248 circle_in_map = False
249 yx, _ = self.basic_circle_out_move(yx, 'RIGHT')
250 for dir_i in range(len(self.circle_out_directions)):
251 for dir_progress in range(distance):
252 direction = self.circle_out_directions[dir_i]
253 yx, test = self.circle_out_move(yx, direction)
255 f(yx, distance, dir_i, dir_progress)
261 class FovMapHex(FovMap, MapHex):
262 circle_out_directions = ('DOWNLEFT', 'LEFT', 'UPLEFT',
263 'UPRIGHT', 'RIGHT', 'DOWNRIGHT')
265 def circle_out_move(self, yx, direction):
266 return self.basic_circle_out_move(yx, direction)
270 class FovMapSquare(FovMap, MapSquare):
271 circle_out_directions = (('DOWN', 'LEFT'), ('LEFT', 'UP'),
272 ('UP', 'RIGHT'), ('RIGHT', 'DOWN'))
274 def circle_out_move(self, yx, direction):
275 self.basic_circle_out_move(yx, direction[0])
276 return self.basic_circle_out_move(yx, direction[1])