xref: /netbsd/games/dab/human.cc (revision 6550d01e)
1 /*	$NetBSD: human.cc,v 1.3 2008/04/28 20:22:54 martin Exp $	*/
2 
3 /*-
4  * Copyright (c) 2003 The NetBSD Foundation, Inc.
5  * All rights reserved.
6  *
7  * This code is derived from software contributed to The NetBSD Foundation
8  * by Christos Zoulas.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29  * POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 /*
33  * human.C: Human interface for dots, using rogue-like keys.
34  */
35 #include "defs.h"
36 RCSID("$NetBSD: human.cc,v 1.3 2008/04/28 20:22:54 martin Exp $")
37 
38 #include "human.h"
39 #include "board.h"
40 #include "box.h"
41 #include "ttyscrn.h"
42 
43 #define CONTROL(a) ((a) & 037)
44 
45 extern GAMESCREEN *sc;
46 
47 HUMAN::HUMAN(const char c) :
48     PLAYER(c),
49     _curx(0),
50     _cury(1)
51 {
52 }
53 
54 void HUMAN::play(const BOARD& b, size_t& y, size_t& x, int& dir)
55 {
56     int mv;
57     b.setpos(_cury, _curx);
58 
59     for (;;) {
60 	switch (mv = b.getmove()) {
61 	case 'h': case 'H':
62 	    _curx -= 2;
63 	    break;
64 
65 	case 'l': case 'L':
66 	    _curx += 2;
67 	    break;
68 
69 	case 'k': case 'K':
70 	    _cury -= 2;
71 	    break;
72 
73 	case 'j': case 'J':
74 	    _cury += 2;
75 	    break;
76 
77 	case 'u': case 'U':
78 	    _curx += 1;
79 	    _cury -= 1;
80 	    break;
81 
82 	case 'y': case 'Y':
83 	    _curx -= 1;
84 	    _cury -= 1;
85 	    break;
86 
87 	case 'b': case 'B':
88 	    _curx -= 1;
89 	    _cury += 1;
90 	    break;
91 
92 	case 'n': case 'N':
93 	    _curx += 1;
94 	    _cury += 1;
95 	    break;
96 
97 	case 'q': case 'Q':
98 	    // Cleanup
99 	    delete sc;
100 	    exit(0);
101 
102 	case CONTROL('L'): case CONTROL('R'):
103 	    b.clean();
104 	    b.paint();
105 	    break;
106 
107 	case ' ':
108 	    {
109 		x = _curx / 2;
110 		y = _cury / 2;
111 
112 		if (_cury & 1) {
113 		    if (_curx == 0)
114 			dir = BOX::left;
115 		    else {
116 			x--;
117 			dir = BOX::right;
118 		    }
119 		}
120 
121 		if (_curx & 1) {
122 		    if (_cury == 0)
123 			dir = BOX::top;
124 		    else {
125 			y--;
126 			dir = BOX::bottom;
127 		    }
128 		}
129 	    }
130 	    return;
131 
132 	default:
133 	    break;
134 	}
135 
136         // We add 2 before the comparison to avoid underflow
137 	if ((2 + _curx) - (_curx & 1) < 2)
138 	    _curx = (b.nx() * 2) + (_curx & 1);
139 	if (_curx >= (b.nx() * 2) + 1)
140 	    _curx = (_curx & 1);
141 
142 	if ((2 + _cury) - (_cury & 1) < 2)
143 	    _cury = (b.ny() * 2) + (_cury & 1);
144 	if (_cury >= (b.ny() * 2) + 1)
145 	    _cury = (_cury & 1);
146 
147 	b.setpos(_cury, _curx);
148     }
149 }
150