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
|
/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
#include "titanic/star_control/const_boundaries.h"
#include "titanic/star_control/camera.h"
#include "titanic/star_control/star_field.h"
#include "titanic/star_control/surface_area.h"
#include "titanic/support/files_manager.h"
#include "titanic/titanic.h"
#include "math/utils.h"
namespace Titanic {
#define ARRAY_COUNT 876
CConstBoundaries::CConstBoundaries() {
}
bool CConstBoundaries::initialize() {
double y, z, ra, dec, phi, theta;
// Get a reference to the starfield points resource
Common::SeekableReadStream *stream = g_vm->_filesManager->getResource("STARFIELD/POINTS");
assert(stream && stream->size() == (12 * ARRAY_COUNT));
_data.resize(ARRAY_COUNT);
for (int idx = 0; idx < ARRAY_COUNT; ++idx) {
CBoundaryVector &entry = _data[idx];
// Get the next set of values
entry._isDrawn = (idx == 0) ? 0 : stream->readUint32LE() != 0;
y = stream->readSint32LE();
z = stream->readSint32LE();
ra = y * 360.0F / 24000.0F;
dec = z / 100.0F;
// Work the polar coordinates
phi = Math::deg2rad<double>(ra);
theta = Math::deg2rad<double>(dec);
entry._x = UNIVERSE_SCALE * cos(theta) * cos(phi);
entry._y = UNIVERSE_SCALE * cos(theta) * sin(phi);
entry._z = UNIVERSE_SCALE * sin(theta);
}
delete stream;
return true;
}
void CConstBoundaries::draw(CSurfaceArea *surface, CCamera *camera) {
if (_data.empty())
return;
// get the current camera transform.
FPose pose = camera->getPose();
float threshold = camera->getFrontClip();
float centerX = (float)surface->_width / 2.0f;
float centerY = (float)surface->_height / 2.0f;
FVector ec0, ec1, wc;
FVector sc0, sc1;
// Get the starting point
wc = _data[0];
ec0._x = wc._x * pose._row1._x + wc._y * pose._row2._x + wc._z * pose._row3._x + pose._vector._x;
ec0._y = wc._x * pose._row1._y + wc._y * pose._row2._y + wc._z * pose._row3._y + pose._vector._y;
ec0._z = wc._x * pose._row1._z + wc._y * pose._row2._z + wc._z * pose._row3._z + pose._vector._z;
// Set the drawing mode and color
surface->_pixel = 0xff0000;
uint oldPixel = surface->_pixel;
surface->setColorFromPixel();
SurfaceAreaMode oldMode = surface->setMode(SA_SOLID);
// Iterate through each remaining point
for (uint idx = 1; idx < _data.size(); ++idx) {
// Process the next point
wc = _data[idx];
ec1._x = wc._x * pose._row1._x + wc._y * pose._row2._x + wc._z * pose._row3._x + pose._vector._x;
ec1._y = wc._x * pose._row1._y + wc._y * pose._row2._y + wc._z * pose._row3._y + pose._vector._y;
ec1._z = wc._x * pose._row1._z + wc._y * pose._row2._z + wc._z * pose._row3._z + pose._vector._z;
// Is this connected to the previous point?
if (_data[idx]._isDrawn) {
if (ec0._z > threshold && ec1._z > threshold) {
// Render the line
sc0 = camera->getRelativePos(2, ec0);
sc1 = camera->getRelativePos(2, ec1);
surface->drawLine(FPoint(sc0._x + centerX, sc0._y + centerY),
FPoint(sc1._x + centerX, sc1._y + centerY));
}
}
ec0 = ec1;
}
// Reset back to previous
surface->_pixel = oldPixel;
surface->setColorFromPixel();
surface->setMode(oldMode);
}
} // End of namespace Titanic
|
