scummvm/engines/gob/game_fascin.cpp

/* 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.
 *
 * $URL$
 * $Id$
 *
 */

#include "common/endian.h"
#include "common/stream.h"

#include "gob/gob.h"
#include "gob/game.h"
#include "gob/global.h"
#include "gob/util.h"
#include "gob/dataio.h"
#include "gob/draw.h"
#include "gob/goblin.h"
#include "gob/inter.h"
#include "gob/mult.h"
#include "gob/parse.h"
#include "gob/scenery.h"
#include "gob/video.h"
#include "gob/videoplayer.h"
#include "gob/sound/sound.h"

namespace Gob {

Game_Fascination::Game_Fascination(GobEngine *vm) : Game_v2(vm) {
}

int16 Game_Fascination::checkCollisions(byte handleMouse, int16 deltaTime, int16 *pResId,
	    int16 *pResIndex) {
	int16 resIndex;
	int16 key;
	int16 oldIndex;
	int16 oldId;
	int16 newkey;
	uint32 timeKey;

	_scrollHandleMouse = handleMouse != 0;

	if (deltaTime >= -1) {
		_lastCollKey = 0;
		_lastCollAreaIndex = 0;
		_lastCollId = 0;
	}

	if (pResId != 0)
		*pResId = 0;

	resIndex = 0;

	if ((_vm->_draw->_cursorIndex == -1) &&
			(handleMouse != 0) && (_lastCollKey == 0)) {
		_lastCollKey = checkMousePoint(1, &_lastCollId, &_lastCollAreaIndex);

		if ((_lastCollKey != 0) && (_lastCollId & 0x8000))
			collAreaSub(_lastCollAreaIndex, 1);
	}

	if (handleMouse != 0) {
		if ((handleMouse==1) && (_vm->_draw->_renderFlags & RENDERFLAG_UNKNOWN))
			warning("checkCollisions : RENDERFLAG_UNKNOWN - Unknown behavior");
		_vm->_draw->animateCursor(-1);
	}

	timeKey = _vm->_util->getTimeKey();
	while (1) {
		if (_vm->_inter->_terminate || _vm->shouldQuit()) {
			if (handleMouse)
				_vm->_draw->blitCursor();
			return 0;
		}

		if (!_vm->_draw->_noInvalidated) {
			if (handleMouse != 0)
				_vm->_draw->animateCursor(-1);
			else
				_vm->_draw->blitInvalidated();
			_vm->_video->waitRetrace();
		}

		key = checkKeys(&_vm->_global->_inter_mouseX,
				&_vm->_global->_inter_mouseY, &_mouseButtons, handleMouse);

		if ((handleMouse == 0) && (_mouseButtons != 0)) {
			_vm->_util->waitMouseRelease(0);
			key = 3;
		}

		if (key != 0) {

			if (handleMouse & 1)
				_vm->_draw->blitCursor();

			if (pResId != 0)
				*pResId = 0;

			if (pResIndex != 0)
				*pResIndex = 0;

			if (_lastCollKey != 0)
				collAreaSub(_lastCollAreaIndex, 0);

			_lastCollKey = 0;
			if (key != 0)
				return key;
		}

		if (handleMouse != 0) {
			if (_mouseButtons != 0) {
				if (deltaTime > 0) {
					_vm->_draw->animateCursor(2);
					_vm->_util->delay(deltaTime);
				} else if (handleMouse & 1)
					_vm->_util->waitMouseRelease(1);
				_vm->_draw->animateCursor(-1);

				if (pResId != 0)
					*pResId = 0;

				key = checkMousePoint(0, pResId, &resIndex);
				if (pResIndex != 0)
					*pResIndex = resIndex;

				if ((key != 0) || ((pResId != 0) && (*pResId != 0))) {
					if ((handleMouse & 1) &&
							((deltaTime <= 0) || (_mouseButtons == 0)))
						_vm->_draw->blitCursor();

					if ((_lastCollKey != 0) && (key != _lastCollKey))
						collAreaSub(_lastCollAreaIndex, 0);

					_lastCollKey = 0;
					return key;
				}

				if (handleMouse & 4)
					return 0;

				if (_lastCollKey != 0)
					collAreaSub(_lastCollAreaIndex, 0);

				_lastCollKey = checkMousePoint(1, &_lastCollId, &_lastCollAreaIndex);
				if ((_lastCollKey != 0) && (_lastCollId & 0x8000))
					collAreaSub(_lastCollAreaIndex, 1);
			} else if ((_vm->_global->_inter_mouseX != _vm->_draw->_cursorX) ||
					(_vm->_global->_inter_mouseY != _vm->_draw->_cursorY)) {

				oldIndex = _lastCollAreaIndex;
				oldId = _lastCollId;
				newkey = checkMousePoint(1, &_lastCollId, &_lastCollAreaIndex);

				if (newkey != _lastCollKey) {
					if ((_lastCollKey != 0) && (oldId & 0x8000))
						collAreaSub(oldIndex, 0);

					_lastCollKey = newkey;

					if ((newkey != 0) && (_lastCollId & 0x8000))
						collAreaSub(_lastCollAreaIndex, 1);
				}
			}
		}

		if ((deltaTime < 0) && (key == 0) && (_mouseButtons == 0)) {
			uint32 curtime = _vm->_util->getTimeKey();
			if ((curtime + deltaTime) > timeKey) {
				if (pResId != 0)
					*pResId = 0;

				if (pResIndex != 0)
					*pResIndex = 0;

				return 0;
			}
		}

		if (handleMouse != 0)
			_vm->_draw->animateCursor(-1);

		_vm->_util->delay(10);
	}
}

} // End of namespace Gob