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124 lines
4.0 KiB
C++
124 lines
4.0 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#include "titanic/star_control/star_points2.h"
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#include "titanic/star_control/star_camera.h"
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#include "titanic/star_control/surface_area.h"
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#include "titanic/support/files_manager.h"
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#include "titanic/titanic.h"
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#include "common/math.h"
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namespace Titanic {
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#define ARRAY_COUNT 80
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bool CStarPoints2::initialize() {
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// Get a reference to the starfield points resource
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Common::SeekableReadStream *stream = g_vm->_filesManager->getResource("STARFIELD/POINTS2");
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_data.resize(ARRAY_COUNT);
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for (int rootCtr = 0; rootCtr < ARRAY_COUNT; ++rootCtr) {
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// Get the number of sub-entries for this entry
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int count = stream->readUint32LE();
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double v1, v2;
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// Read in the sub-entries
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RootEntry &rootEntry = _data[rootCtr];
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rootEntry.resize(count);
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for (int idx = 0; idx < count; ++idx) {
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CStarPointEntry &se = rootEntry[idx];
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FVector *vectors[2] = { &se._v1, &se._v2 };
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for (int fctr = 0; fctr < 2; ++fctr) {
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v1 = stream->readSint32LE();
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v2 = stream->readSint32LE();
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v1 *= Common::deg2rad<double>(0.015);
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v2 *= Common::deg2rad<double>(0.01);
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vectors[fctr]->_x = cos(v1) * 3000000.0 * cos(v2);
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vectors[fctr]->_y = sin(v1) * 3000000.0 * cos(v2);
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vectors[fctr]->_z = sin(v2) * 3000000.0;
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}
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}
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}
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delete stream;
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return true;
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}
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void CStarPoints2::draw(CSurfaceArea *surface, CStarCamera *camera) {
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if (_data.empty())
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return;
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FPose pose = camera->getPose();
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double threshold = camera->getThreshold();
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FVector vector1, vector2, vector3, vector4;
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double vWidth2 = (double)surface->_width * 0.5;
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double vHeight2 = (double)surface->_height * 0.5;
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FRect r;
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surface->_pixel = 0xffff00;
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uint oldPixel = surface->_pixel;
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surface->setColorFromPixel();
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SurfaceAreaMode oldMode = surface->setMode(SA_SOLID);
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for (uint rootCtr = 0; rootCtr < _data.size(); ++rootCtr) {
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const RootEntry &re = _data[rootCtr];
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if (!re._field0 || re.empty())
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continue;
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for (uint idx = 0; idx < re.size(); ++idx) {
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const CStarPointEntry &se = re[idx];
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vector1._z = pose._row2._z * se._v1._y + pose._row3._z * se._v1._z
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+ pose._row1._z * se._v1._x + pose._vector._z;
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vector1._x = pose._row2._x * se._v1._y + pose._row3._x * se._v1._z
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+ pose._row1._x * se._v1._x + pose._vector._x;
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vector1._y = pose._row2._y * se._v1._y + pose._row3._y * se._v1._z
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+ pose._row1._y * se._v1._x + pose._vector._y;
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vector3._z = pose._row2._z * se._v2._y + pose._row2._x * se._v2._z
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+ pose._row1._z * se._v2._x + pose._vector._y;
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vector3._x = pose._row3._z * se._v2._y + pose._row3._x * se._v2._z
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+ pose._row1._x * se._v2._x + pose._vector._y;
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vector3._y = pose._row2._y * se._v2._y + pose._row3._y * se._v2._z
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+ pose._row1._y * se._v2._x + pose._vector._y;
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if (vector1._z > threshold && vector3._z > threshold) {
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vector2 = camera->getRelativePos(2, vector1);
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vector4 = camera->getRelativePos(2, vector3);
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r.bottom = vector4._y + vHeight2;
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r.right = vector4._x + vWidth2;
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r.top = vector2._y + vHeight2;
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r.left = vector2._x + vWidth2;
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surface->drawLine(r);
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}
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}
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}
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surface->_pixel = oldPixel;
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surface->setColorFromPixel();
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surface->setMode(oldMode);
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}
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} // End of namespace Titanic
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