rotation action

[naja.git] / naja / gameboard.py

diff --git a/naja/gameboard.py b/naja/gameboard.py
index f3e6f58567ecd962db71cb9c356c3b34ec32a561..2cce169544823e843c86e82f2577c3a634f99e5e 100644 (file)
--- a/naja/gameboard.py
+++ b/naja/gameboard.py
@@ -2,7 +2,7 @@ from random import choice
 
 from naja.constants import(
     BITS, DIRECTION_BITS, CONDITION_BITS, PLAYER_DEFAULTS,
-    MOVE, ACT)
+    ACT, EXAMINE, ROTATION)
 from naja.player import Player
 from naja import actions
 
@@ -20,7 +20,7 @@ class GameBoard(object):
         self.locations = [item.copy() for item in state['locations']]
         self.player = player
         self.board_locations = board_locations
-        self.player_mode = MOVE
+        self.player_mode = EXAMINE
 
     @classmethod
     def new_game(cls, locations_definition,
@@ -104,12 +104,70 @@ class GameBoard(object):
         location = LocationCard.new_location(choice(self.locations).copy())
         self.board_locations[position] = location
 
-    def change_mode(self):
+    def shift_location_row(self, change, is_vertical):
+        px, py = self.player.position
+        shifted_locations = {}
+        mkpos = lambda i: (px, i) if is_vertical else (i, py)
+
+        for i in range(5):
+            if (px, py) == mkpos(i):
+                continue
+            new_i = (i + change) % 5
+            if (px, py) == mkpos(new_i):
+                new_i = (new_i + change) % 5
+            shifted_locations[mkpos(new_i)] = self.board_locations[mkpos(i)]
+
+        self.board_locations.update(shifted_locations)
+
+    def shift_locations(self, direction):
+        if BITS[direction] == BITS.NORTH:
+            self.shift_location_row(-1, is_vertical=True)
+        elif BITS[direction] == BITS.SOUTH:
+            self.shift_location_row(1, is_vertical=True)
+        elif BITS[direction] == BITS.EAST:
+            self.shift_location_row(1, is_vertical=False)
+        elif BITS[direction] == BITS.WEST:
+            self.shift_location_row(-1, is_vertical=False)
+
+    def rotate_locations(self, direction):
+        px, py = self.player.position
+        locations_to_rotate = []
+        rotated_locations = {}
+
+        if py > 0:
+            for i in range(max(0, px -1), min(5, px + 2)):
+                locations_to_rotate.append((i, py - 1))
+
+        if px < 4:
+            locations_to_rotate.append((px + 1, py))
+
+        if py < 4:
+            for i in reversed(range(max(0, px -1), min(5, px + 2))):
+                locations_to_rotate.append((i, py + 1))
+
+        if px > 0:
+            locations_to_rotate.append((px - 1, py))
+
+        if ROTATION[direction] == ROTATION.CLOCKWISE:
+            new_positions = locations_to_rotate[1:] + [locations_to_rotate[0]]
+        elif ROTATION[direction] == ROTATION.ANTICLOCKWISE:
+            new_positions = [locations_to_rotate[-1]] + locations_to_rotate[:-1]
+
+        for old, new in zip(locations_to_rotate, new_positions):
+            rotated_locations[old] = self.board_locations[new]
+
+        self.board_locations.update(rotated_locations)
+
+    def allow_chess_move(self, chesspiece):
+        self.player.allow_chess_move(chesspiece)
+
+    def change_mode(self, new_mode):
         """Advance to the next mode"""
-        if self.player_mode == MOVE:
-            self.player_mode = ACT
-        elif self.player_mode == ACT:
-            self.player_mode = MOVE
+        if new_mode == self.player_mode:
+            raise RuntimeError("Inconsistent state. Setting mode %s to itself"
+                               % self.player_mode)
+        elif new_mode in (ACT, EXAMINE):
+            self.player_mode = new_mode
         else:
             raise RuntimeError("Illegal player mode %s" % self.player_mode)
 
@@ -143,17 +201,26 @@ class LocationCard(object):
     @classmethod
     def build_action(cls, definition):
         action_class = getattr(actions, definition['action_class'])
-        required_bits = definition['required_bits']
+        required_bits = cls.parse_bits(definition['required_bits'])
         data = definition.get('data', {})
         return action_class(required_bits, **data)
 
     @classmethod
     def new_location(cls, definition):
+        if 'bits' in definition:
+            bits = cls.parse_bits(definition['bits'])
+        else:
+            bits = cls.generate_bitwise_operand()
         return cls.import_location({
-            'bitwise_operand': cls.generate_bitwise_operand(),
+            'bitwise_operand': bits,
             'actions': definition['actions'],
         })
 
+    @classmethod
+    def parse_bits(self, bit_list):
+        # Convert names to numbers if applicable.
+        return frozenset(BITS.get(bit, bit) for bit in bit_list)
+
     def export(self):
         return {
             'bitwise_operand': self.bitwise_operand,