1 /*
2 * MacInput.cpp
3 * Copyright (C) 2007 by Bryan Duff <duff0097@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
18 * USA
19 */
20 #include "MacInput.h"
21
22 //keys
23 int forwardskey;
24 int backwardskey;
25 int leftkey;
26 int rightkey;
27 int aimkey;
28 int psychicaimkey;
29 int psychickey;
30 int helpkey;
31
IsKeyDown(unsigned char * keyMap,unsigned short theKey)32 Boolean IsKeyDown(unsigned char *keyMap, unsigned short theKey)
33 {
34 long keyMapIndex;
35 Boolean isKeyDown;
36 short bitToCheck;
37
38 // Calculate the key map index
39 keyMapIndex = keyMap[theKey / 8];
40
41 // Calculate the individual bit to check
42 bitToCheck = theKey % 8;
43
44 // Check the status of the key
45 isKeyDown = (keyMapIndex >> bitToCheck) & 0x01;
46
47 // Return the status of the key
48 return isKeyDown;
49 }
50
51