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
|
import org.trinitydesktop.qt.*;
public class CannonField extends TQWidget {
private int ang;
private int f;
private int timerCount;
private TQTimer autoShootTimer;
private float shoot_ang;
private float shoot_f;
private final TQRect barrelRect = new TQRect(33, -4, 15, 8);
public CannonField(TQWidget parent, String name) {
super(parent, name);
ang = 45;
f = 0;
timerCount = 0;
autoShootTimer = new TQTimer(this, "movement handler");
connect(autoShootTimer, SIGNAL("timeout()"),
this, SLOT("moveShot()"));
shoot_ang = 0;
shoot_f = 0;
setPalette(new TQPalette(new TQColor(250, 250, 200)));
}
public int angle() {
return ang;
}
public void setAngle(int degrees) {
if (degrees < 5)
degrees = 5;
if (degrees > 70)
degrees = 70;
if (ang == degrees)
return;
ang = degrees;
repaint();
emit("angleChanged", ang);
}
public int force() {
return f;
}
public void setForce(int newton) {
if (newton < 0)
newton = 0;
if (f == newton)
return;
f = newton;
emit("forceChanged", f);
}
public void shoot() {
if (autoShootTimer.isActive())
return;
timerCount = 0;
shoot_ang = ang;
shoot_f = f;
autoShootTimer.start(50);
}
public void moveShot() {
TQRegion r = new TQRegion(shotRect());
timerCount++;
TQRect shotR = shotRect();
if (shotR.x() > width() || shotR.y() > height())
autoShootTimer.stop();
else
r = r.unite(new TQRegion(shotR));
repaint(r);
}
public void paintEvent(TQPaintEvent e) {
TQRect updateR = e.rect();
TQPainter p = new TQPainter(this);
if (updateR.intersects(cannonRect()))
paintCannon(p);
if (autoShootTimer.isActive() && updateR.intersects(shotRect()))
paintShot(p);
}
private void paintShot(TQPainter p) {
p.setBrush(black());
p.setPen(NoPen);
p.drawRect(shotRect());
}
private void paintCannon(TQPainter p) {
TQRect cr = cannonRect();
TQPixmap pix = new TQPixmap(cr.size());
pix.fill(new TQColor(250, 250, 200));
TQPainter tmp = new TQPainter(pix);
tmp.setBrush(blue());
tmp.setPen(NoPen);
tmp.translate(0, pix.height() - 1);
tmp.drawPie(new TQRect(-35,-35, 70, 70), 0, 90*16);
tmp.rotate(-ang);
tmp.drawRect(barrelRect);
tmp.end();
p.drawPixmap(cr.topLeft(), pix);
}
private TQRect cannonRect() {
TQRect r = new TQRect(0, 0, 50, 50);
r.moveBottomLeft(rect().bottomLeft());
return r;
}
private TQRect shotRect() {
final double gravity = 4;
double time = timerCount / 4.0;
double velocity = shoot_f;
double radians = shoot_ang*3.14159265/180;
double velx = velocity*Math.cos(radians);
double vely = velocity*Math.sin(radians);
double x0 = (barrelRect.right() + 5)*Math.cos(radians);
double y0 = (barrelRect.right() + 5)*Math.sin(radians);
double x = x0 + velx*time;
double y = y0 + vely*time - 0.5*gravity*time*time;
TQRect r = new TQRect(0, 0, 6, 6);
r.moveCenter(new TQPoint((int) x, height() - 1 - (int) y));
return r;
}
public TQSizePolicy sizePolicy() {
return new TQSizePolicy(TQSizePolicy.Expanding, TQSizePolicy.Expanding);
}
}
|
