base-costume.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.
 *
 */


#include "scumm/base-costume.h"
#include "scumm/costume.h"

namespace Scumm {

byte BaseCostumeRenderer::drawCostume(const VirtScreen &vs, int numStrips, const Actor *a, bool drawToBackBuf) {
	int i;
	byte result = 0;

	_out = vs;
	if (drawToBackBuf)
		_out.setPixels(vs.getBackPixels(0, 0));
	else
		_out.setPixels(vs.getPixels(0, 0));

	_actorX += _vm->_virtscr[kMainVirtScreen].xstart & 7;
	_out.w = _out.pitch / _vm->_bytesPerPixel;
	// We do not use getBasePtr here because the offset to pixels never used
	// _vm->_bytesPerPixel, but it seems unclear why.
	_out.setPixels((byte *)_out.getPixels() - (_vm->_virtscr[kMainVirtScreen].xstart & 7));

	_numStrips = numStrips;

	if (_vm->_game.version <= 1) {
		_xmove = 0;
		_ymove = 0;
	} else if (_vm->_game.features & GF_OLD_BUNDLE) {
		_xmove = -72;
		_ymove = -100;
	} else {
		_xmove = _ymove = 0;
	}
	for (i = 0; i < 16; i++)
		result |= drawLimb(a, i);
	return result;
}

void BaseCostumeRenderer::codec1_ignorePakCols(Codec1 &v1, int num) {
	num *= _height;

	do {
		v1.replen = *_srcptr++;
		v1.repcolor = v1.replen >> v1.shr;
		v1.replen &= v1.mask;

		if (!v1.replen)
			v1.replen = *_srcptr++;

		do {
			if (!--num)
				return;
		} while (--v1.replen);
	} while (1);
}

bool ScummEngine::isCostumeInUse(int cost) const {
	int i;
	Actor *a;

	if (_roomResource != 0)
		for (i = 1; i < _numActors; i++) {
			a = derefActor(i);
			if (a->isInCurrentRoom() && a->_costume == cost)
				return true;
		}

	return false;
}

} // End of namespace Scumm