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/* 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 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 "titanic/star_control/star_markers.h"
#include "titanic/star_control/star_camera.h"
#include "titanic/star_control/surface_area.h"
namespace Titanic {
void CStarMarkers::draw(CSurfaceArea *surfaceArea, CStarCamera *camera, CStarCloseup *closeup) {
if (_data.empty())
return;
FPose pose = camera->getPose();
double threshold = camera->getThreshold();
FPoint center((double)surfaceArea->_width * 0.5,
surfaceArea->_height * 0.5);
FVector newV;
double xl, xc, xr, yt, yc, yb;
uint savedPixel = surfaceArea->_pixel;
surfaceArea->_pixel = 0xffff;
surfaceArea->setColorFromPixel();
for (uint idx = 0; idx < _data.size(); ++idx) {
const CBaseStarEntry &star = _data[idx];
newV._x = pose._row1._x * star._position._x + pose._row3._x * star._position._z
+ pose._row2._x * star._position._y + pose._vector._x;
newV._y = pose._row1._y * star._position._x + pose._row3._y * star._position._z
+ pose._row2._y * star._position._y + pose._vector._y;
newV._z = pose._row1._z * star._position._x + pose._row3._z * star._position._z
+ pose._row2._z * star._position._y + pose._vector._z;
if (newV._z > threshold) {
FVector vTemp = camera->getRelativePos(2, newV);
xc = center._x + vTemp._x;
yc = center._y + vTemp._y;
xl = xc - 4.0;
yt = yc - 4.0;
xr = xc + 4.0;
yb = yc + 4.0;
surfaceArea->drawLine(FPoint(xl, yc), FPoint(xc, yb)); // bottom-left
surfaceArea->drawLine(FPoint(xc, yb), FPoint(xr, yc)); // bottom-right
surfaceArea->drawLine(FPoint(xr, yc), FPoint(xc, yt)); // top-right
surfaceArea->drawLine(FPoint(xc, yt), FPoint(xl, yc)); // top-left
}
}
surfaceArea->_pixel = savedPixel;
surfaceArea->setColorFromPixel();
}
bool CStarMarkers::addStar(const CBaseStarEntry *entry) {
// iterate through the existing stars
for (uint idx = 0; idx < _data.size(); ++idx) {
CBaseStarEntry &star = _data[idx];
if (star == *entry) {
// Found a matching star at the exact same position, so remove it instead
_data.remove_at(idx);
return true;
}
}
// No existing match
if (_data.size() == 32)
// Out of space, so delete oldest star
_data.remove_at(0);
// Add new star
_data.push_back(*entry);
return true;
}
} // End of namespace Titanic
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