/*
 *
 * Stenciltricks, code to perform tricks with OpenGL's stencil buffer easily.
 *
 * Copyright (C) 2006-2007  Alejandro Valenzuela Roca, <lanjoe9 at mexinetica NOSPAMPLEASE dot com>
 *
 * http://mexinetica.com/~lanjoe9
 *
 * This file is part of MotorJ, a free framework for videogame creation.
 * <http://wiki.lidsol.net/wiki/index.php?title=MotorJ>
 * <http://motorj.mexinetica.com/ >
 *
 * MotorJ is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MotorJ 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 Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with MotorJ.  If not, see <http://www.gnu.org/licenses/>.
 */

#include "stenciltricks.h"
#ifndef NINTENDO_DS
// FIXME: Should not be auto-compiled in Nintendo DS (No stencil buffer in Nintendo DS.)
#ifndef NINTENDO_WII
// FIXME: Stencil stuff is probably supported on the Wii

void st_do_trick(stenciltrick * trick, float t_elapsed){
	float step = t_elapsed/(float)trick->duracion;


	if (trick->porciento < 100){
		if (trick->porciento+step > 100){
			trick->porciento = 100;
		} else {
			trick->porciento += step;
		}
		if (trick->tipo == ST_CORTINILLA_ABRIR){
			glClearStencil(0);
			glClear( GL_STENCIL_BUFFER_BIT );
			glStencilFunc( GL_ALWAYS, 1, 1);
			glPushMatrix();
			glLoadIdentity();
			//Deshabilitar algunas cosas
			glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); // Buffer de color
			glEnable( GL_STENCIL_TEST );
			glStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
			glDisable(GL_DEPTH_TEST); // Buffer de profundidad
			glDisable(GL_TEXTURE_2D); // Texturizado
			glDisable( GL_LIGHTING ); // Iluminación


			glColor3f( 1.0f, 1.0f, 1.0f);
			//glTranslatef(0.1,0.1,0);
			glRotatef(1080*(trick->porciento/100), 0, 0, 1);

			glBegin(GL_POLYGON);
			glVertex3f(0, 3.0*(trick->porciento/100), -2);
			glVertex3f(-2.0*(trick->porciento/100), 2.0*(trick->porciento/100), -2);
			glVertex3f(-3.0*(trick->porciento/100), 0, -2);
			glVertex3f(-2.0*(trick->porciento/100), -2.0*(trick->porciento/100), -2);
			glVertex3f(0, -3.0*(trick->porciento/100), -2);
			glVertex3f(2.0*(trick->porciento/100), -2.0*(trick->porciento/100), -2);
			glVertex3f(3.0*(trick->porciento/100), 0, -2);
			glVertex3f(2.0*(trick->porciento/100), 2.0*(trick->porciento/100), -2);
			glEnd();
			glPopMatrix();
			glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
			//glEnable(GL_TEXTURE_2D);
			glEnable(GL_DEPTH_TEST);
			//glClear( GL_STENCIL_BUFFER_BIT );

			glEnable( GL_LIGHTING );

			// Set the stencil buffer to only allow writing
			// to the screen when the value of the
			// stencil buffer is 1
			glStencilFunc( GL_EQUAL, 1, 1 );
			glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
			if (trick->porciento>99){
				glClearStencil(1);
				glClear( GL_STENCIL_BUFFER_BIT );
			}

		}else if (trick->tipo == ST_CORTINILLA_CERRAR){
			float invporciento = (100-trick->porciento);
			glClearStencil(0);
			glClear( GL_STENCIL_BUFFER_BIT );
			glStencilFunc( GL_ALWAYS, 1, 1);
			glPushMatrix();
			glLoadIdentity();
			//Deshabilitar algunas cosas
			glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE); // Buffer de color
			glEnable( GL_STENCIL_TEST );
			glStencilOp( GL_KEEP, GL_KEEP, GL_REPLACE );
			glDisable(GL_DEPTH_TEST); // Buffer de profundidad
			glDisable(GL_TEXTURE_2D); // Texturizado
			glDisable( GL_LIGHTING ); // Iluminación


			glColor3f( 1.0f, 1.0f, 1.0f);
			//glTranslatef(0.1,0.1,0);
			glRotatef(1080*(trick->porciento/100), 0, 0, 1);

			glBegin(GL_POLYGON);
			glVertex3f(0, 3.0*(invporciento/100), -2);
			glVertex3f(-2.0*(invporciento/100), 2.0*(invporciento/100), -2);
			glVertex3f(-3.0*(invporciento/100), 0, -2);
			glVertex3f(-2.0*(invporciento/100), -2.0*(invporciento/100), -2);
			glVertex3f(0, -3.0*(invporciento/100), -2);
			glVertex3f(2.0*(invporciento/100), -2.0*(invporciento/100), -2);
			glVertex3f(3.0*(invporciento/100), 0, -2);
			glVertex3f(2.0*(invporciento/100), 2.0*(invporciento/100), -2);
			glEnd();
			glPopMatrix();
			glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
			//glEnable(GL_TEXTURE_2D);
			glEnable(GL_DEPTH_TEST);
			//glClear( GL_STENCIL_BUFFER_BIT );

			glEnable( GL_LIGHTING );

			// Set the stencil buffer to only allow writing
			// to the screen when the value of the
			// stencil buffer is 1
			glStencilFunc( GL_EQUAL, 1, 1 );
			glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
			if (trick->porciento>99){
				glClearStencil(0);
				glClear( GL_STENCIL_BUFFER_BIT );
			}

		}
	}
}
#endif
#endif