Show GLWFlag.cpp syntax highlighted
////////////////////////////////////////////////////////////////////////////////
// Scorched3D (c) 2000-2003
//
// This file is part of Scorched3D.
//
// Scorched3D 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.
//
// Scorched3D 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 Scorched3D; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
////////////////////////////////////////////////////////////////////////////////
#include <math.h>
#include <GLEXT/GLState.h>
#include <GLW/GLWFlag.h>
REGISTER_CLASS_SOURCE(GLWFlag);
GLWFlag::GLWFlag(Vector &color, float x, float y, float w) :
color_(color), GLWidget(x, y, w, 20.0f), offset_(0.0f)
{
}
GLWFlag::~GLWFlag()
{
}
void GLWFlag::simulate(float frameTime)
{
offset_ -= 10.0f * frameTime;
}
void GLWFlag::draw()
{
GLState currentState(GLState::TEXTURE_OFF);
const float diff = 1.0f;
const float rad = (3.14f * 4.0f) / w_;
glBegin(GL_QUADS);
for (float a=0.0f; a<=w_-diff; a+=diff)
{
float mult = float (sin((a * rad) + offset_));
float cmult = (mult * 0.25f) + 0.75f;
float hmult = mult * 2.0f;
glColor3f(color_[0] * cmult, color_[1] * cmult, color_[2] * cmult);
glVertex2f(x_ + a, y_ + hmult);
glVertex2f(x_ + a + diff, y_ + hmult);
glVertex2f(x_ + a + diff, y_ + h_ + hmult);
glVertex2f(x_ + a, y_ + h_ + hmult);
}
glEnd();
}
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