scummvm/engines/gob/palanim.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program 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.

 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * $URL$
 * $Id$
 *
 */

#ifndef GOB_PALANIM_H
#define GOB_PALANIM_H

#include "gob/video.h"

namespace Gob {

class PalAnim {
public:
	bool fadeStep(int16 oper); // 0: all colors, 1: red, 2: green, 3: blue
	void fade(Video::PalDesc * palDesc, int16 fade, int16 all);

	PalAnim(GobEngine *vm);

protected:
	int16 _fadeValue;

	byte _toFadeRed[256];
	byte _toFadeGreen[256];
	byte _toFadeBlue[256];

	char *_palArray[3];
	byte *_fadeArray[3];

	GobEngine *_vm;

	bool fadeStepColor(int color);
	char fadeColor(int16 from, int16 to);
};

} // End of namespace Gob

#endif // GOB_PALANIM_H