mirror of
https://github.com/AquariaOSE/Aquaria.git
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93 lines
2.3 KiB
C++
93 lines
2.3 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 "RenderBase.h"
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Strand::Strand(const Vector &position, size_t segs, size_t dist) : RenderObject(), Segmented(dist, dist)
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{
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cull = false;
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segments.resize(segs);
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for (size_t i = 0; i < segments.size(); i++)
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{
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segments[i] = new RenderObject;
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}
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initSegments(position);
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}
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void Strand::destroy()
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{
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RenderObject::destroy();
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for (size_t i = 0; i < segments.size(); i++)
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{
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segments[i]->destroy();
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delete segments[i];
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}
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segments.clear();
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}
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void Strand::onUpdate(float dt)
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{
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RenderObject::onUpdate(dt);
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updateSegments(position);
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}
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void Strand::onRender(const RenderState& rs) const
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{
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const int numSegments = segments.size();
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if (numSegments == 0) return;
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glEnable(GL_BLEND);
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glTranslatef(-position.x, -position.y, 0);
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glLineWidth(1);
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glBegin(GL_LINE_STRIP);
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unsigned int r = (unsigned int)(color.x * (255<<8));
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unsigned int g = (unsigned int)(color.y * (255<<8));
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unsigned int b = (unsigned int)(color.z * (255<<8));
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unsigned int a = (255<<8);
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unsigned int dr = r/50;
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unsigned int dg = g/50;
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unsigned int db = b/50;
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unsigned int da = a/numSegments;
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glColor4ub(r>>8, g>>8, b>>8, a>>8);
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glVertex2f(position.x, position.y);
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glVertex2f(segments[0]->position.x, segments[0]->position.y);
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const int colorLimit = numSegments<50 ? numSegments : 50;
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int i;
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for (i = 1; i < colorLimit; i++)
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{
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r -= dr;
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g -= dg;
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b -= db;
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a -= da;
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glColor4ub(r>>8, g>>8, b>>8, a>>8);
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glVertex2f(segments[i]->position.x, segments[i]->position.y);
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}
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for (; i < numSegments; i++)
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{
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a -= da;
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glColor4ub(0, 0, 0, a>>8);
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glVertex2f(segments[i]->position.x, segments[i]->position.y);
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}
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glEnd();
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}
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