src/Swapper.h

   1 /*
   2  * Swapper.h
   3  * Daniel Nelson - 8/24/0
   4  *
   5  * Copyright (C) 2000  Daniel Nelson
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * Daniel Nelson - aluminumangel.org
  22  * 174 W. 18th Ave.
  23  * Columbus, OH  43210
  24  */
  25
  26 #ifndef SWAPPER_H
  27 #define SWAPPER_H
  28
  29
  30 #include "BlockManager.h"
  31
  32 #define SS_SWAPPING             (1 << 0)
  33 #define SS_MOVE_PAUSE           (1 << 1)
  34 #define SS_MOVE_UP              (1 << 2)
  35 #define SS_MOVE_DOWN            (1 << 3)
  36 #define SS_MOVE_LEFT            (1 << 4)
  37 #define SS_MOVE_RIGHT           (1 << 5)
  38 #define SS_MOVE_MASK            (SS_MOVE_UP | SS_MOVE_DOWN \
  39                                  | SS_MOVE_LEFT | SS_MOVE_RIGHT)
  40
  41 #define SA_LEFT                 (1 << 0)
  42 #define SA_RIGHT                (1 << 1)
  43 #define SA_DISALLOWED           (1 << 2)
  44
  45 /* static */ class Swapper {
  46 public:
  47   static void gameStart (   );
  48   static void timeStep (   );
  49
  50   static inline void shiftUp (   )
  51     { y++; }
  52
  53   static inline void notifyLanding ( int _x, int _y, Block &block,
  54    ComboTabulator *combo )
  55   {
  56     if (!(state & SS_SWAPPING)) return;
  57     if (_y - 1 != y) return;
  58     if (_x == x && (swap & SA_RIGHT)
  59      && BlockManager::flavorMatch(block, *right_block))
  60       right_block->beginComboInvolvement(combo);
  61     else if (_x == x + 1 && (swap & SA_LEFT)
  62      && BlockManager::flavorMatch(block, *left_block))
  63       left_block->beginComboInvolvement(combo);
  64   }
  65
  66   // the location of our left half
  67   static int x, y;
  68
  69   // goes off when we're allowed move again
  70   static int move_pause_alarm;
  71
  72   // goes off when a swap in complete
  73   static int swap_alarm;
  74
  75   // swapper's state
  76   static int state;
  77
  78   // factor of swap complete
  79   static float swap_factor;
  80
  81   // the swapper's color;
  82   static int color;
  83
  84 private:
  85   // type of swap we're executing, if any
  86   static int swap;
  87
  88   // the swapping blocks
  89   static Block *left_block, *right_block;
  90
  91   // insures that the player releases a button look for another command; makes
  92   // the control more crisp
  93   static int button_down_move;
  94   static bool button_down_swap;
  95
  96   // allows the user to queue up the next command before completion of
  97   // the current command
  98   static int queued_move;
  99   static bool queued_swap;
 100 };
 101
 102 #endif