doc/html/t13-gamebrd-cpp.html


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

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial.doc:2029 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>t13/gamebrd.cpp Example File</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>

<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
 <a href="index.html">
<font color="#004faf">Home</font></a>
 | <a href="classes.html">
<font color="#004faf">All&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;Classes</font></a>
 | <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>t13/gamebrd.cpp Example File</h1>

 
<pre>/****************************************************************
**
** Implementation of GameBoard class, TQt tutorial 13
**
****************************************************************/

#include "gamebrd.h"

#include &lt;<a href="qfont-h.html">qfont.h</a>&gt;
#include &lt;<a href="qapplication-h.html">qapplication.h</a>&gt;
#include &lt;<a href="qlabel-h.html">qlabel.h</a>&gt;
#include &lt;<a href="qpushbutton-h.html">qpushbutton.h</a>&gt;
#include &lt;<a href="qlcdnumber-h.html">qlcdnumber.h</a>&gt;
#include &lt;<a href="qlayout-h.html">qlayout.h</a>&gt;

#include "lcdrange.h"
#include "cannon.h"

<a name="f109"></a>GameBoard::GameBoard( <a href="qwidget.html">TQWidget</a> *parent, const char *name )
        : <a href="qwidget.html">TQWidget</a>( parent, name )
{
    <a href="qpushbutton.html">TQPushButton</a> *quit = new <a href="qpushbutton.html">TQPushButton</a>( "&amp;Quit", this, "quit" );
    quit-&gt;<a href="qwidget.html#setFont">setFont</a>( TQFont( "Times", 18, TQFont::Bold ) );

    <a href="qobject.html#connect">connect</a>( quit, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), qApp, SLOT(<a href="qapplication.html#quit">quit</a>()) );

    LCDRange *angle  = new LCDRange( "ANGLE", this, "angle" );
    angle-&gt;setRange( 5, 70 );

    LCDRange *force  = new LCDRange( "FORCE", this, "force" );
    force-&gt;setRange( 10, 50 );

    cannonField = new CannonField( this, "cannonField" );

    <a href="qobject.html#connect">connect</a>( angle, SIGNAL(valueChanged(int)),
             cannonField, SLOT(setAngle(int)) );
    <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(angleChanged(int)),
             angle, SLOT(setValue(int)) );

    <a href="qobject.html#connect">connect</a>( force, SIGNAL(valueChanged(int)),
             cannonField, SLOT(setForce(int)) );
    <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(forceChanged(int)),
             force, SLOT(setValue(int)) );

    <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(hit()),
             this, SLOT(hit()) );
    <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(missed()),
             this, SLOT(missed()) );

    <a href="qpushbutton.html">TQPushButton</a> *shoot = new <a href="qpushbutton.html">TQPushButton</a>( "&amp;Shoot", this, "shoot" );
    shoot-&gt;<a href="qwidget.html#setFont">setFont</a>( TQFont( "Times", 18, TQFont::Bold ) );

    <a href="qobject.html#connect">connect</a>( shoot, SIGNAL(<a href="qbutton.html#clicked">clicked</a>()), SLOT(fire()) );
    <a href="qobject.html#connect">connect</a>( cannonField, SIGNAL(canShoot(bool)),
             shoot, SLOT(<a href="qwidget.html#setEnabled">setEnabled</a>(bool)) );

    TQPushButton *restart
        = new <a href="qpushbutton.html">TQPushButton</a>( "&amp;New Game", this, "newgame" );
    restart-&gt;setFont( TQFont( "Times", 18, TQFont::Bold ) );

    <a href="qobject.html#connect">connect</a>( restart, SIGNAL(clicked()), this, SLOT(newGame()) );

    hits = new <a href="qlcdnumber.html">TQLCDNumber</a>( 2, this, "hits" );
    shotsLeft = new <a href="qlcdnumber.html">TQLCDNumber</a>( 2, this, "shotsleft" );
    <a href="qlabel.html">TQLabel</a> *hitsL = new <a href="qlabel.html">TQLabel</a>( "HITS", this, "hitsLabel" );
    TQLabel *shotsLeftL
        = new <a href="qlabel.html">TQLabel</a>( "SHOTS LEFT", this, "shotsleftLabel" );

    <a href="qgridlayout.html">TQGridLayout</a> *grid = new <a href="qgridlayout.html">TQGridLayout</a>( this, 2, 2, 10 );
    grid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( quit, 0, 0 );
    grid-&gt;<a href="qgridlayout.html#addWidget">addWidget</a>( cannonField, 1, 1 );
    grid-&gt;<a href="qgridlayout.html#setColStretch">setColStretch</a>( 1, 10 );

    <a href="qvboxlayout.html">TQVBoxLayout</a> *leftBox = new <a href="qvboxlayout.html">TQVBoxLayout</a>;
    grid-&gt;<a href="qgridlayout.html#addLayout">addLayout</a>( leftBox, 1, 0 );
    leftBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( angle );
    leftBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( force );

    <a href="qhboxlayout.html">TQHBoxLayout</a> *topBox = new <a href="qhboxlayout.html">TQHBoxLayout</a>;
    grid-&gt;<a href="qgridlayout.html#addLayout">addLayout</a>( topBox, 0, 1 );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( shoot );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( hits );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( hitsL );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( shotsLeft );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( shotsLeftL );
    topBox-&gt;<a href="qboxlayout.html#addStretch">addStretch</a>( 1 );
    topBox-&gt;<a href="qboxlayout.html#addWidget">addWidget</a>( restart );

    angle-&gt;setValue( 60 );
    force-&gt;setValue( 25 );
    angle-&gt;<a href="qwidget.html#setFocus">setFocus</a>();

    newGame();
}


void <a name="f110"></a>GameBoard::fire()
{
    if ( cannonField-&gt;gameOver() || cannonField-&gt;isShooting() )
        return;
    shotsLeft-&gt;<a href="qlcdnumber.html#display">display</a>( shotsLeft-&gt;<a href="qlcdnumber.html#intValue">intValue</a>() - 1 );
    cannonField-&gt;shoot();
}


void <a name="f111"></a>GameBoard::hit()
{
    hits-&gt;<a href="qlcdnumber.html#display">display</a>( hits-&gt;<a href="qlcdnumber.html#intValue">intValue</a>() + 1 );
    if ( shotsLeft-&gt;<a href="qlcdnumber.html#intValue">intValue</a>() == 0 )
        cannonField-&gt;setGameOver();
    else
        cannonField-&gt;newTarget();
}


void <a name="f112"></a>GameBoard::missed()
{
    if ( shotsLeft-&gt;<a href="qlcdnumber.html#intValue">intValue</a>() == 0 )
        cannonField-&gt;setGameOver();
}


void <a name="f113"></a>GameBoard::newGame()
{
    shotsLeft-&gt;<a href="qlcdnumber.html#display">display</a>( 15 );
    hits-&gt;<a href="qlcdnumber.html#display">display</a>( 0 );
    cannonField-&gt;restartGame();
    cannonField-&gt;newTarget();
}
</pre><!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>TQt 3.3.8</div>
</table></div></address></body>
</html>