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/* 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.
*
*/
/*
* Based on the Reverse Engineering work of Christophe Fontanel,
* maintainer of the Dungeon Master Encyclopaedia (http://dmweb.free.fr/)
*/
#include "group.h"
#include "dungeonman.h"
#include "champion.h"
namespace DM {
GroupMan::GroupMan(DMEngine* vm) : _vm(vm) {
_g375_activeGroups = nullptr;
}
GroupMan::~GroupMan() {
delete[] _g375_activeGroups;
}
void GroupMan::f196_initActiveGroups() {
if (_vm->_g298_newGame)
_g376_maxActiveGroupCount = 60;
if (_g375_activeGroups)
delete[] _g375_activeGroups;
_g375_activeGroups = new ActiveGroup[_g376_maxActiveGroupCount];
for (uint16 i = 0; i < _g376_maxActiveGroupCount; ++i)
_g375_activeGroups[i]._groupThingIndex = -1;
}
uint16 GroupMan::f145_getGroupCells(Group* group, int16 mapIndex) {
byte cells;
cells = group->_cells;
if (mapIndex == _vm->_dungeonMan->_g309_partyMapIndex)
cells = _g375_activeGroups[cells]._cells;
return cells;
}
byte gGroupDirections[4] = {0x00, 0x55, 0xAA, 0xFF}; // @ G0258_auc_Graphic559_GroupDirections
uint16 GroupMan::f147_getGroupDirections(Group* group, int16 mapIndex) {
if (mapIndex == _vm->_dungeonMan->_g309_partyMapIndex)
return _g375_activeGroups[group->getActiveGroupIndex()]._directions;
return gGroupDirections[group->getDir()];
}
int16 GroupMan::f176_getCreatureOrdinalInCell(Group* group, uint16 cell) {
uint16 currMapIndex = _vm->_dungeonMan->_g272_currMapIndex;
byte groupCells = f145_getGroupCells(group, currMapIndex);
if (groupCells == k255_CreatureTypeSingleCenteredCreature)
return _vm->M0_indexToOrdinal(0);
byte creatureIndex = group->getCount();
if (getFlag(g243_CreatureInfo[group->_type]._attributes, k0x0003_MaskCreatureInfo_size) == k1_MaskCreatureSizeHalf) {
if ((f147_getGroupDirections(group, currMapIndex) & 1) == (cell & 1))
cell = returnPrevVal(cell);
do {
byte creatureCell = M50_getCreatureValue(groupCells, creatureIndex);
if (creatureCell == cell || creatureCell == returnNextVal(cell))
return _vm->M0_indexToOrdinal(creatureIndex);
} while (creatureIndex--);
} else {
do {
if (M50_getCreatureValue(groupCells, creatureIndex) == cell)
return _vm->M0_indexToOrdinal(creatureIndex);
} while (creatureIndex--);
}
return 0;
}
uint16 GroupMan::M50_getCreatureValue(uint16 groupVal, uint16 creatureIndex) {
return (groupVal >> (creatureIndex << 1)) & 0x3;
}
}
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