mirror of
https://github.com/AquariaOSE/Aquaria.git
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becd31770c
- Vector interpolation. Also removed unused interpolation trigger events. - GridRender::onRender() (removed Andrew's hack, use fixed map file!) - make use of glVertex3i() & memchr() in GridRender - very minor misc things
125 lines
2.8 KiB
C++
125 lines
2.8 KiB
C++
/*
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Copyright (C) 2007, 2010 - Bit-Blot
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This file is part of Aquaria.
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Aquaria 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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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.
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See the GNU General Public License for more details.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "Segmented.h"
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#include "../BBGE/MathFunctions.h"
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Segmented::Segmented(float minDist, float maxDist) : minDist(minDist), maxDist(maxDist)
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{
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sqrMinDist = sqr(minDist);
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sqrMaxDist = sqr(maxDist);
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}
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void Segmented::setMaxDist(float m)
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{
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maxDist = m;
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sqrMaxDist = sqr(maxDist);
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}
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void Segmented::initSegments(const Vector &position)
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{
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for (int i = 0; i < segments.size(); i++)
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segments[i]->position = position;
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numSegments = segments.size();
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}
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void Segmented::destroySegments(float life)
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{
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for (int i = 0; i < segments.size(); i++)
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{
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segments[i]->setLife(life);
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segments[i]->setDecayRate(1.0f);
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segments[i]->fadeAlphaWithLife = true;
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}
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segments.clear();
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}
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RenderObject *Segmented::getSegment(int seg)
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{
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if (seg < 0 || seg >= segments.size())
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return 0;
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return segments[seg];
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}
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void Segmented::updateSegment(int i, const Vector &diff)
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{
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const float sqrLength = diff.getSquaredLength2D();
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if (sqrLength < sqrMinDist)
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return;
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if (sqrLength > sqrMaxDist)
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{
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Vector useDiff = diff;
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useDiff.setLength2D(maxDist);
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Vector reallyUseDiff = diff - useDiff;
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segments[i]->position += reallyUseDiff;
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}
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else
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{
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segments[i]->position += diff*0.05f;
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}
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float angle;
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MathFunctions::calculateAngleBetweenVectorsInDegrees(Vector(0,0,0), diff, angle);
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segments[i]->rotation.interpolateTo(Vector(0,0,angle), 0.2f);
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}
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void Segmented::updateAlpha(float a)
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{
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for (int i = 0; i < segments.size(); i++)
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{
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segments[i]->alpha = a;
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}
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}
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void Segmented::warpSegments(const Vector &position)
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{
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for (int i = 0; i < segments.size(); i++)
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{
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segments[i]->position = position;
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}
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}
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void Segmented::updateSegments(const Vector &position, bool reverse)
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{
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const int top = segments.size()-1;
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const Vector *lastPosition = &position;
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if (!reverse)
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{
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for (int i = 0; i <= top; i++)
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{
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const Vector diff = *lastPosition - segments[i]->position;
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updateSegment(i, diff);
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lastPosition = &segments[i]->position;
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}
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}
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else
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{
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for (int i = top; i >= 0; i--)
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{
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const Vector diff = *lastPosition - segments[i]->position;
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updateSegment(i, diff);
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lastPosition = &segments[i]->position;
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}
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}
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}
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