1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*
* Copyright (c) 1996-2002 Nicolas HADACEK (hadacek@kde.org)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "bfield.h"
using namespace KGrid2D;
BaseField::BaseField(long seed)
: _nbUncovered(0), _nbMarked(0), _nbUncertain(0), _random(seed)
{}
CoordList BaseField::coveredNeighbours(const Coord &p) const
{
CoordList n;
CoordList tmp = neighbours(p);
for (CoordList::const_iterator it=tmp.begin(); it!=tmp.end(); ++it)
if ( state(*it)!=Uncovered ) n.append(*it);
return n;
}
uint BaseField::nbMinesAround(const Coord &p) const
{
uint nb = 0;
CoordList n = neighbours(p);
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
if ( hasMine(*it) ) nb++;
return nb;
}
void BaseField::reset(uint width, uint height, uint nbMines)
{
_firstReveal = true;
_nbMarked = 0;
_nbUncertain = 0;
_nbUncovered = 0;
_nbMines = nbMines;
Case tmp;
tmp.mine = false;
tmp.state = Covered;
resize(width, height);
fill(tmp);
}
bool BaseField::checkField(uint w, uint h, uint nb, const TQString &s)
{
if ( s.length()!=w*h ) return false;
uint n = 0;
unsigned int strLength(s.length());
for (uint i=0; i<strLength; i++)
if ( s[i]=="1" ) n++;
else if ( s[i]!="0" ) return false;
return ( n==nb );
}
void BaseField::initReplay(const TQString &s)
{
Q_ASSERT( checkField(width(), height(), _nbMines, s) );
_firstReveal = false;
Case tmp;
tmp.state = Covered;
unsigned int strLength(s.length());
for (uint i=0; i<strLength; i++) {
tmp.mine = ( s[i]=="1" );
at(i) = tmp;
}
}
void BaseField::changeState(KMines::CaseState state, int inc)
{
switch (state) {
case Uncovered: _nbUncovered += inc; break;
case Uncertain: _nbUncertain += inc; break;
case Marked: _nbMarked += inc; break;
default: break;
}
}
void BaseField::changeCase(const Coord &p, KMines::CaseState newState)
{
changeState(state(p), -1);
changeState(newState, 1);
(*this)[p].state = newState;
}
void BaseField::uncover(const Coord &p, CoordList *autorevealed)
{
if ( state(p)!=Covered ) return;
changeCase(p, Uncovered);
if ( nbMinesAround(p)==0 ) {
CoordList n = coveredNeighbours(p);
if (autorevealed) *autorevealed += n;
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
uncover(*it, autorevealed);
}
}
void BaseField::showAllMines(bool won)
{
for (uint i=0; i<size(); i++) {
Coord p = coord(i);
if ( hasMine(p) && state(p)!=Exploded && state(p)!=Marked ) {
changeCase(p, won ? Marked : Uncovered);
if ( !won ) _nbUncovered--; // not an empty case ...
}
}
}
bool BaseField::autoReveal(const Coord &p, bool *caseUncovered)
{
if ( state(p)!=Uncovered ) return true;
uint nb = nbMinesAround(p);
CoordList n = neighbours(p);
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
if ( state(*it)==Marked ) nb--;
if ( nb==0 ) // number of surrounding mines == number of marks :)
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
if ( !reveal(*it, 0, caseUncovered) ) return false;
return true;
}
bool BaseField::reveal(const Coord &p, CoordList *autorevealed,
bool *caseUncovered)
{
if ( state(p)!=Covered ) return true;
if (_firstReveal) {
_firstReveal = false;
// set mines positions on field ; must avoid the first
// revealed case
uint n = size() - 1; // minus one case free
Q_ASSERT( _nbMines<n );
for(uint k=0; k<_nbMines; k++) {
uint pos = _random.getLong(n - k);
uint i = 0;
Coord tmp;
for (;;) {
tmp = coord(i);
if ( !(tmp==p) && !hasMine(tmp) ) {
if ( pos==0 ) break;
pos--;
}
i++;
}
(*this)[tmp].mine = true;
}
}
if ( !hasMine(p) ) {
uncover(p, autorevealed);
if (caseUncovered) *caseUncovered = true;
return true;
}
// explosion
changeCase(p, Exploded);
// find all errors
for (uint i=0; i<size(); i++) {
Coord p = coord(i);
if ( state(p)==Marked && !hasMine(p) ) changeCase(p, Error);
}
return false;
}
void BaseField::completeReveal()
{
for (;;) {
bool changed = false;
for (uint i=0; i<size(); i++) {
Coord c = coord(i);
if ( state(c)!=Uncovered ) continue;
autoReveal(c, &changed);
uint nb = nbMinesAround(c);
CoordList n = neighbours(c);
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
if ( state(*it)!=Uncovered ) nb--;
if (nb) continue;
for (CoordList::const_iterator it=n.begin(); it!=n.end(); ++it)
if ( state(*it)!=Uncovered && state(*it)!=Marked ) {
changed = true;
changeCase(*it, Marked);
}
}
if ( !changed ) break;
}
}
void BaseField::doMark(const Coord &c)
{
if ( state(c)!=Covered ) return;
changeCase(c, Marked);
}
TQCString BaseField::string() const
{
TQCString s(size());
for (uint i=0; i<size(); i++)
s[i] = (hasMine(coord(i)) ? '1' : '0');
return s;
}
|
