plomlompom.com Git - plomrogue2-experiments/blob - server_/map_.py

   1 import sys
   2 sys.path.append('../')
   3 import game_common
   4 import server_.game
   5 import math
   6
   7
   8 class Map(game_common.Map):
   9
  10     def __getitem__(self, yx):
  11         return self.terrain[self.get_position_index(yx)]
  12
  13     def __setitem__(self, yx, c):
  14         pos_i = self.get_position_index(yx)
  15         if type(c) == str:
  16             self.terrain = self.terrain[:pos_i] + c + self.terrain[pos_i + 1:]
  17         else:
  18             self.terrain[pos_i] = c
  19
  20     def __iter__(self):
  21         """Iterate over YX position coordinates."""
  22         for y in range(self.size[0]):
  23             for x in range(self.size[1]):
  24                 yield [y, x]
  25
  26     @property
  27     def geometry(self):
  28         return self.__class__.__name__[3:]
  29
  30     def lines(self):
  31         width = self.size[1]
  32         for y in range(self.size[0]):
  33             yield (y, self.terrain[y * width:(y + 1) * width])
  34
  35     def get_fov_map(self, yx):
  36         fov_class_name = 'Fov' + self.__class__.__name__
  37         fov_class = globals()[fov_class_name]
  38         return fov_class(self, yx)
  39
  40     # The following is used nowhere, so not implemented.
  41     #def items(self):
  42     #    for y in range(self.size[0]):
  43     #        for x in range(self.size[1]):
  44     #            yield ([y, x], self.terrain[self.get_position_index([y, x])])
  45
  46     def get_directions(self):
  47         directions = []
  48         for name in dir(self):
  49             if name[:5] == 'move_':
  50                 directions += [name[5:]]
  51         return directions
  52
  53     def new_from_shape(self, init_char):
  54         import copy
  55         new_map = copy.deepcopy(self)
  56         for pos in new_map:
  57             new_map[pos] = init_char
  58         return new_map
  59
  60     def move(self, start_pos, direction):
  61         mover = getattr(self, 'move_' + direction)
  62         new_pos = mover(start_pos)
  63         if new_pos[0] < 0 or new_pos[1] < 0 or \
  64                 new_pos[0] >= self.size[0] or new_pos[1] >= self.size[1]:
  65             raise server_.game.GameError('would move outside map bounds')
  66         return new_pos
  67
  68     def move_LEFT(self, start_pos):
  69         return [start_pos[0], start_pos[1] - 1]
  70
  71     def move_RIGHT(self, start_pos):
  72         return [start_pos[0], start_pos[1] + 1]
  73
  74
  75 class MapHex(Map):
  76
  77     # The following is used nowhere, so not implemented.
  78     #def are_neighbors(self, pos_1, pos_2):
  79     #    if pos_1[0] == pos_2[0] and abs(pos_1[1] - pos_2[1]) <= 1:
  80     #        return True
  81     #    elif abs(pos_1[0] - pos_2[0]) == 1:
  82     #        if pos_1[0] % 2 == 0:
  83     #            if pos_2[1] in (pos_1[1], pos_1[1] - 1):
  84     #                return True
  85     #        elif pos_2[1] in (pos_1[1], pos_1[1] + 1):
  86     #            return True
  87     #    return False
  88
  89     def move_UPLEFT(self, start_pos):
  90         if start_pos[0] % 2 == 1:
  91             return [start_pos[0] - 1, start_pos[1] - 1]
  92         else:
  93             return [start_pos[0] - 1, start_pos[1]]
  94
  95     def move_UPRIGHT(self, start_pos):
  96         if start_pos[0] % 2 == 1:
  97             return [start_pos[0] - 1, start_pos[1]]
  98         else:
  99             return [start_pos[0] - 1, start_pos[1] + 1]
 100
 101     def move_DOWNLEFT(self, start_pos):
 102         if start_pos[0] % 2 == 1:
 103              return [start_pos[0] + 1, start_pos[1] - 1]
 104         else:
 105                return [start_pos[0] + 1, start_pos[1]]
 106
 107     def move_DOWNRIGHT(self, start_pos):
 108         if start_pos[0] % 2 == 1:
 109             return [start_pos[0] + 1, start_pos[1]]
 110         else:
 111             return [start_pos[0] + 1, start_pos[1] + 1]
 112
 113     def get_neighbors(self, pos):
 114         # DOWNLEFT, DOWNRIGHT, LEFT, RIGHT, UPLEFT, UPRIGHT (alphabetically)
 115         neighbors = [None, None, None, None, None, None]  # e, d, c, x, s, w
 116         if pos[1] > 0:
 117             neighbors[2] = [pos[0], pos[1] - 1]
 118         if pos[1] < self.size[1] - 1:
 119             neighbors[3] = [pos[0], pos[1] + 1]
 120         # x, c, s, d, w, e  # 3->0, 2->1, 5->4, 0->5
 121         if pos[0] % 2 == 1:
 122             if pos[0] > 0 and pos[1] > 0:
 123                 neighbors[4] = [pos[0] - 1, pos[1] - 1]
 124             if pos[0] < self.size[0] - 1 and pos[1] > 0:
 125                 neighbors[0] = [pos[0] + 1, pos[1] - 1]
 126             if pos[0] > 0:
 127                 neighbors[5] = [pos[0] - 1, pos[1]]
 128             if pos[0] < self.size[0] - 1:
 129                 neighbors[1] = [pos[0] + 1, pos[1]]
 130         else:
 131             if pos[0] > 0 and pos[1] < self.size[1] - 1:
 132                 neighbors[5] = [pos[0] - 1, pos[1] + 1]
 133             if pos[0] < self.size[0] - 1 and pos[1] < self.size[1] - 1:
 134                 neighbors[1] = [pos[0] + 1, pos[1] + 1]
 135             if pos[0] > 0:
 136                 neighbors[4] = [pos[0] - 1, pos[1]]
 137             if pos[0] < self.size[0] - 1:
 138                 neighbors[0] = [pos[0] + 1, pos[1]]
 139         return neighbors
 140
 141
 142 class FovMapHex(MapHex):
 143
 144     def __init__(self, source_map, yx):
 145         self.source_map = source_map
 146         self.size = self.source_map.size
 147         self.terrain = '?' * self.size_i
 148         self[yx] = '.'
 149         self.shadow_cones = []
 150         self.circle_out(yx, self.shadow_process_hex)
 151
 152     def shadow_process_hex(self, yx, distance_to_center, dir_i, dir_progress):
 153         # Possible optimization: If no shadow_cones yet and self[yx] == '.',
 154         # skip all.
 155         CIRCLE = 360  # Since we'll float anyways, number is actually arbitrary.
 156
 157         def correct_arm(arm):
 158             if arm < 0:
 159                 arm += CIRCLE
 160             return arm
 161
 162         def in_shadow_cone(new_cone):
 163             for old_cone in self.shadow_cones:
 164                 if old_cone[0] >= new_cone[0] and \
 165                     new_cone[1] >= old_cone[1]:
 166                     #print('DEBUG shadowed by:', old_cone)
 167                     return True
 168                 # We might want to also shade hexes whose middle arm is inside a
 169                 # shadow cone for a darker FOV. Note that we then could not for
 170                 # optimization purposes rely anymore on the assumption that a
 171                 # shaded hex cannot add growth to existing shadow cones.
 172             return False
 173
 174         def merge_cone(new_cone):
 175             for old_cone in self.shadow_cones:
 176                 if new_cone[0] > old_cone[0] and \
 177                     (new_cone[1] < old_cone[0] or
 178                      math.isclose(new_cone[1], old_cone[0])):
 179                     #print('DEBUG merging to', old_cone)
 180                     old_cone[0] = new_cone[0]
 181                     #print('DEBUG merged cone:', old_cone)
 182                     return True
 183                 if new_cone[1] < old_cone[1] and \
 184                     (new_cone[0] > old_cone[1] or
 185                      math.isclose(new_cone[0], old_cone[1])):
 186                     #print('DEBUG merging to', old_cone)
 187                     old_cone[1] = new_cone[1]
 188                     #print('DEBUG merged cone:', old_cone)
 189                     return True
 190             return False
 191
 192         def eval_cone(cone):
 193             #print('DEBUG CONE', cone, '(', step_size, distance_to_center, number_steps, ')')
 194             if in_shadow_cone(cone):
 195                 return
 196             self[yx] = '.'
 197             if self.source_map[yx] != '.':
 198                 #print('DEBUG throws shadow', cone)
 199                 unmerged = True
 200                 while merge_cone(cone):
 201                     unmerged = False
 202                 if unmerged:
 203                     self.shadow_cones += [cone]
 204
 205         #print('DEBUG', yx)
 206         step_size = (CIRCLE/6) / distance_to_center
 207         number_steps = dir_i * distance_to_center + dir_progress
 208         left_arm = correct_arm(-(step_size/2) - step_size*number_steps)
 209         right_arm = correct_arm(left_arm - step_size)
 210         # Optimization potential: left cone could be derived from previous
 211         # right cone. Better even: Precalculate all cones.
 212         if right_arm > left_arm:
 213             eval_cone([left_arm, 0])
 214             eval_cone([CIRCLE, right_arm])
 215         else:
 216             eval_cone([left_arm, right_arm])
 217
 218     def circle_out(self, yx, f):
 219         # Optimization potential: Precalculate movement positions. (How to check
 220         # circle_in_map then?)
 221         # Optimization potential: Precalculate what hexes are shaded by what hex
 222         # and skip evaluation of already shaded hexes. (This only works if hex
 223         # shading implies they completely lie in existing shades; otherwise we
 224         # would lose shade growth through hexes at shade borders.)
 225
 226         def move(pos, direction):
 227             """Move position pos into direction. Return whether still in map."""
 228             mover = getattr(self, 'move_' + direction)
 229             pos[:] = mover(pos)
 230             if pos[0] < 0 or pos[1] < 0 or \
 231                pos[0] >= self.size[0] or pos[1] >= self.size[1]:
 232                 return False
 233             return True
 234
 235         # TODO: Start circling only in earliest obstacle distance.
 236         directions = ('DOWNLEFT', 'LEFT', 'UPLEFT', 'UPRIGHT', 'RIGHT', 'DOWNRIGHT')
 237         circle_in_map = True
 238         distance = 1
 239         yx = yx[:]
 240         #print('DEBUG CIRCLE_OUT', yx)
 241         while circle_in_map:
 242             circle_in_map = False
 243             move(yx, 'RIGHT')
 244             for dir_i in range(len(directions)):
 245                 for dir_progress in range(distance):
 246                     direction = directions[dir_i]
 247                     if move(yx, direction):
 248                         f(yx, distance, dir_i, dir_progress)
 249                         circle_in_map = True
 250             distance += 1
 251
 252
 253 class MapSquare(Map):
 254
 255     # The following is used nowhere, so not implemented.
 256     #def are_neighbors(self, pos_1, pos_2):
 257     #    return abs(pos_1[0] - pos_2[0]) <= 1 and abs(pos_1[1] - pos_2[1] <= 1)
 258
 259     def move_UP(self, start_pos):
 260         return [start_pos[0] - 1, start_pos[1]]
 261
 262     def move_DOWN(self, start_pos):
 263         return [start_pos[0] + 1, start_pos[1]]
 264
 265     def get_neighbors(self, pos):
 266         # DOWN, LEFT, RIGHT, UP  (alphabetically)
 267         neighbors = [None, None, None, None]
 268         if pos[0] > 0:
 269             neighbors[3] = [pos[0] - 1, pos[1]]
 270         if pos[1] > 0:
 271             neighbors[1] = [pos[0], pos[1] - 1]
 272         if pos[0] < self.size[0] - 1:
 273             neighbors[0] = [pos[0] + 1, pos[1]]
 274         if pos[1] < self.size[1] - 1:
 275             neighbors[2] = [pos[0], pos[1] + 1]
 276         return neighbors
 277
 278
 279 class FovMapSquare(MapSquare):
 280     """Just a marginally and unsatisfyingly adapted variant of MapFovHex."""
 281
 282     def __init__(self, source_map, yx):
 283         self.source_map = source_map
 284         self.size = self.source_map.size
 285         self.terrain = '?' * self.size_i
 286         self[yx] = '.'
 287         self.shadow_cones = []
 288         self.circle_out(yx, self.shadow_process_hex)
 289
 290     def shadow_process_hex(self, yx, distance_to_center, dir_i, dir_progress):
 291         CIRCLE = 360  # Since we'll float anyways, number is actually arbitrary.
 292
 293         def correct_arm(arm):
 294             if arm < 0:
 295                 arm += CIRCLE
 296             return arm
 297
 298         def in_shadow_cone(new_cone):
 299             for old_cone in self.shadow_cones:
 300                 if old_cone[0] >= new_cone[0] and \
 301                     new_cone[1] >= old_cone[1]:
 302                     #print('DEBUG shadowed by:', old_cone)
 303                     return True
 304             return False
 305
 306         def merge_cone(new_cone):
 307             for old_cone in self.shadow_cones:
 308                 if new_cone[0] > old_cone[0] and \
 309                     (new_cone[1] < old_cone[0] or
 310                      math.isclose(new_cone[1], old_cone[0])):
 311                     #print('DEBUG merging to', old_cone)
 312                     old_cone[0] = new_cone[0]
 313                     #print('DEBUG merged cone:', old_cone)
 314                     return True
 315                 if new_cone[1] < old_cone[1] and \
 316                     (new_cone[0] > old_cone[1] or
 317                      math.isclose(new_cone[0], old_cone[1])):
 318                     #print('DEBUG merging to', old_cone)
 319                     old_cone[1] = new_cone[1]
 320                     #print('DEBUG merged cone:', old_cone)
 321                     return True
 322             return False
 323
 324         def eval_cone(cone):
 325             new_cone = [left_arm, right_arm]
 326             #print('DEBUG CONE', cone, '(', step_size, distance_to_center, number_steps, ')')
 327             if in_shadow_cone(cone):
 328                 return
 329             self[yx] = '.'
 330             if self.source_map[yx] != '.':
 331                 #print('DEBUG throws shadow', cone)
 332                 unmerged = True
 333                 while merge_cone(cone):
 334                     unmerged = False
 335                 if unmerged:
 336                     self.shadow_cones += [cone]
 337
 338         #print('DEBUG', yx)
 339         step_size = (CIRCLE/4) / distance_to_center
 340         number_steps = dir_i * distance_to_center + dir_progress
 341         left_arm = correct_arm(-(step_size/2) - step_size*number_steps)
 342         right_arm = correct_arm(left_arm - step_size)
 343         if right_arm > left_arm:
 344             eval_cone([left_arm, 0])
 345             eval_cone([CIRCLE, right_arm])
 346         else:
 347             eval_cone([left_arm, right_arm])
 348
 349     def circle_out(self, yx, f):
 350
 351         def move(pos, direction):
 352             """Move position pos into direction. Return whether still in map."""
 353             mover = getattr(self, 'move_' + direction)
 354             pos[:] = mover(pos)
 355             if pos[0] < 0 or pos[1] < 0 or \
 356                pos[0] >= self.size[0] or pos[1] >= self.size[1]:
 357                 return False
 358             return True
 359
 360         directions = (('DOWN', 'LEFT'), ('LEFT', 'UP'),
 361                       ('UP', 'RIGHT'), ('RIGHT', 'DOWN'))
 362         circle_in_map = True
 363         distance = 1
 364         yx = yx[:]
 365         #print('DEBUG CIRCLE_OUT', yx)
 366         while circle_in_map:
 367             circle_in_map = False
 368             move(yx, 'RIGHT')
 369             for dir_i in range(len(directions)):
 370                 for dir_progress in range(distance):
 371                     direction = directions[dir_i]
 372                     move(yx, direction[0])
 373                     if move(yx, direction[1]):
 374                         f(yx, distance, dir_i, dir_progress)
 375                         circle_in_map = True
 376             distance += 1
 377
 378
 379 map_manager = game_common.MapManager((MapHex, MapSquare))