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#include <string.h>
#include <math.h>
#include <stdlib.h>
#ifdef WIN32
#include <windows.h>
#endif
#include <GL/gl.h>
#include "main/fovhandler.h"
#include "exception.h"
#include "demolib_prefs.h"
#ifndef M_PI
#define M_PI 3.141592653589793238462643383279502
#endif
#if DEMOLIB_MAINLOOP
FOVHandler::FOVHandler(MainLoop *ml, const char *title, const char *elem, Hashtable *attr) :
Event(ml, title, elem, attr, "fov")
{
this->layer = -900.0f;
}
FOVHandler::~FOVHandler()
{
}
void FOVHandler::start_effect() {}
void FOVHandler::draw_scene(float progress)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(this->get_val("fov", progress),
DEMOLIB_XASPECT / DEMOLIB_YASPECT, 1.0f, 500.0f);
glMatrixMode(GL_MODELVIEW);
}
/* reset FOV at end */
void FOVHandler::end_effect()
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(53.0f, DEMOLIB_XASPECT / DEMOLIB_YASPECT, 1.0f, 500.0f);
glMatrixMode(GL_MODELVIEW);
}
#endif
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