Refactor / encapsulate Map stuff into own module.

[plomrogue2-experiments] / server_ / map_.py

diff --git a/server_/map_.py b/server_/map_.py
new file mode 100644 (file)
index 0000000..9dc96d0
--- /dev/null
+++ b/server_/map_.py
@@ -0,0 +1,113 @@
+import sys
+sys.path.append('../')
+import game_common
+import server_.game
+
+
+class Map(game_common.Map):
+
+    def __getitem__(self, yx):
+        return self.terrain[self.get_position_index(yx)]
+
+    def __setitem__(self, yx, c):
+        pos_i = self.get_position_index(yx)
+        self.terrain = self.terrain[:pos_i] + c + self.terrain[pos_i + 1:]
+
+    def __iter__(self):
+        """Iterate over YX position coordinates."""
+        for y in range(self.size[0]):
+            for x in range(self.size[1]):
+                yield [y, x]
+
+    def lines(self):
+        width = self.size[1]
+        for y in range(self.size[0]):
+            yield (y, self.terrain[y * width:(y + 1) * width])
+
+    # The following is used nowhere, so not implemented.
+    #def items(self):
+    #    for y in range(self.size[0]):
+    #        for x in range(self.size[1]):
+    #            yield ([y, x], self.terrain[self.get_position_index([y, x])])
+
+    def get_directions(self):
+        directions = []
+        for name in dir(self):
+            if name[:5] == 'move_':
+                directions += [name[5:]]
+        return directions
+
+    def new_from_shape(self, init_char):
+        import copy
+        new_map = copy.deepcopy(self)
+        for pos in new_map:
+            new_map[pos] = init_char
+        return new_map
+
+    def move(self, start_pos, direction):
+        mover = getattr(self, 'move_' + direction)
+        new_pos = mover(start_pos)
+        if new_pos[0] < 0 or new_pos[1] < 0 or \
+                new_pos[0] >= self.size[0] or new_pos[1] >= self.size[1]:
+            raise server_.game.GameError('would move outside map bounds')
+        return new_pos
+
+    def move_LEFT(self, start_pos):
+        return [start_pos[0], start_pos[1] - 1]
+
+    def move_RIGHT(self, start_pos):
+        return [start_pos[0], start_pos[1] + 1]
+
+
+class MapHex(Map):
+
+    def are_neighbors(self, pos_1, pos_2):
+        if pos_1[0] == pos_2[0] and abs(pos_1[1] - pos_2[1]) <= 1:
+            return True
+        elif abs(pos_1[0] - pos_2[0]) == 1:
+            if pos_1[0] % 2 == 0:
+                if pos_2[1] in (pos_1[1], pos_1[1] - 1):
+                    return True
+            elif pos_2[1] in (pos_1[1], pos_1[1] + 1):
+                return True
+        return False
+
+    def move_UPLEFT(self, start_pos):
+        if start_pos[0] % 2 == 0:
+            return [start_pos[0] - 1, start_pos[1] - 1]
+        else:
+            return [start_pos[0] - 1, start_pos[1]]
+
+    def move_UPRIGHT(self, start_pos):
+        if start_pos[0] % 2 == 0:
+            return [start_pos[0] - 1, start_pos[1]]
+        else:
+            return [start_pos[0] - 1, start_pos[1] + 1]
+
+    def move_DOWNLEFT(self, start_pos):
+        if start_pos[0] % 2 == 0:
+            return [start_pos[0] + 1, start_pos[1] - 1]
+        else:
+            return [start_pos[0] + 1, start_pos[1]]
+
+    def move_DOWNRIGHT(self, start_pos):
+        if start_pos[0] % 2 == 0:
+            return [start_pos[0] + 1, start_pos[1]]
+        else:
+            return [start_pos[0] + 1, start_pos[1] + 1]
+
+
+class MapSquare(Map):
+
+    def are_neighbors(self, pos_1, pos_2):
+        return abs(pos_1[0] - pos_2[0]) <= 1 and abs(pos_1[1] - pos_2[1] <= 1)
+
+    def move_UP(self, start_pos):
+        return [start_pos[0] - 1, start_pos[1]]
+
+    def move_DOWN(self, start_pos):
+        return [start_pos[0] + 1, start_pos[1]]
+
+
+def get_map_class(geometry):
+    return globals()['Map' + geometry]