mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-28 04:34:50 +00:00
499 lines
9.9 KiB
C++
499 lines
9.9 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "gob/gob.h"
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#include "gob/map.h"
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#include "gob/goblin.h"
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#include "gob/scenery.h"
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#include "gob/mult.h"
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namespace Gob {
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Map::Map(GobEngine *vm) : _vm(vm) {
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_widthByte = 0;
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_mapWidth = -1;
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_mapHeight = -1;
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_screenWidth = 0;
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_screenHeight = 0;
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_tilesWidth = 0;
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_tilesHeight = 0;
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_passWidth = 0;
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_passMap = 0;
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_itemsMap = 0;
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_wayPointsCount = 0;
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_wayPoints = 0;
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_bigTiles = false;
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for (int i = 0; i < 40; i++) {
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_itemPoses[i].x = 0;
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_itemPoses[i].y = 0;
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_itemPoses[i].orient = 0;
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}
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_nearestWayPoint = 0;
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_nearestDest = 0;
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_curGoblinX = 0;
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_curGoblinY = 0;
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_destX = 0;
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_destY = 0;
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_sourceFile[0] = 0;
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_loadFromAvo = false;
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}
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Map::~Map() {
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delete[] _passMap;
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if (_itemsMap) {
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for (int i = 0; i < _mapHeight; i++)
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delete[] _itemsMap[i];
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delete[] _itemsMap;
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}
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delete[] _wayPoints;
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}
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void Map::placeItem(int16 x, int16 y, int16 id) {
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if ((_itemsMap[y][x] & 0xFF00) != 0)
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_itemsMap[y][x] = (_itemsMap[y][x] & 0xFF00) | id;
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else
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_itemsMap[y][x] = (_itemsMap[y][x] & 0x00FF) | (id << 8);
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}
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enum {
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kLeft = (1 << 0),
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kUp = (1 << 1),
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kRight = (1 << 2),
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kDown = (1 << 3)
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};
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int16 Map::getDirection(int16 x0, int16 y0, int16 x1, int16 y1) {
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int16 dir = 0;
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if ((x0 == x1) && (y0 == y1))
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return 0;
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if ((x1 < 0) || (x1 > _mapWidth) || (y1 < 0) || (y1 > _mapHeight))
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return 0;
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if (y1 > y0)
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dir |= kDown;
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else if (y1 < y0)
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dir |= kUp;
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if (x1 > x0)
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dir |= kRight;
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else if (x1 < x0)
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dir |= kLeft;
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if ((getPass(x0, y0) == 3) && (dir & kUp)) {
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if ((getPass(x0, y0 - 1) != 0))
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return kDirN;
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}
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if ((getPass(x0, y0) == 3) && (dir & kDown)) {
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if ((getPass(x0, y0 + 1) != 0))
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return kDirS;
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}
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if ((getPass(x0, y0) == 6) && (dir & kUp)) {
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if ((getPass(x0, y0 - 1) != 0))
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return kDirN;
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}
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if ((getPass(x0, y0) == 6) && (dir & kDown)) {
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if ((getPass(x0, y0 + 1) != 0))
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return kDirS;
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}
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if (dir == kLeft) {
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if (((x0 - 1) >= 0) && (getPass(x0 - 1, y0) != 0))
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return kDirW;
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return 0;
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}
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if (dir == kRight) {
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if (((x0 + 1) < _mapWidth) && (getPass(x0 + 1, y0) != 0))
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return kDirE;
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return 0;
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}
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if (dir == kUp) {
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if (((y0 - 1) >= 0) && (getPass(x0, y0 - 1) != 0))
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return kDirN;
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if (((y0 - 1) >= 0) && ((x0 - 1) >= 0) &&
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(getPass(x0 - 1, y0 - 1) != 0))
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return kDirNW;
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if (((y0 - 1) >= 0) && ((x0 + 1) < _mapWidth) &&
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(getPass(x0 + 1, y0 - 1) != 0))
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return kDirNE;
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return 0;
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}
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if (dir == kDown) {
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if (((y0 + 1) < _mapHeight) && (getPass(x0, y0 + 1) != 0))
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return kDirS;
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if (((y0 + 1) < _mapHeight) && ((x0 - 1) >= 0) &&
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(getPass(x0 - 1, y0 + 1) != 0))
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return kDirSW;
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if (((y0 + 1) < _mapHeight) && ((x0 + 1) < _mapWidth) &&
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(getPass(x0 + 1, y0 + 1) != 0))
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return kDirSE;
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return 0;
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}
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if (dir == (kRight | kUp)) {
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if (((y0 - 1) >= 0) && ((x0 + 1) < _mapWidth) &&
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(getPass(x0 + 1, y0 - 1) != 0))
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return kDirNE;
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if (((y0 - 1) >= 0) && (getPass(x0, y0 - 1) != 0))
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return kDirN;
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if (((x0 + 1) < _mapWidth) && (getPass(x0 + 1, y0) != 0))
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return kDirE;
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return 0;
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}
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if (dir == (kRight | kDown)) {
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if (((x0 + 1) < _mapWidth) && ((y0 + 1) < _mapHeight) &&
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(getPass(x0 + 1, y0 + 1) != 0))
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return kDirSE;
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if (((y0 + 1) < _mapHeight) && (getPass(x0, y0 + 1) != 0))
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return kDirS;
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if (((x0 + 1) < _mapWidth) && (getPass(x0 + 1, y0) != 0))
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return kDirE;
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return 0;
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}
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if (dir == (kLeft | kUp)) {
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if (((x0 - 1) >= 0) && ((y0 - 1) >= 0) &&
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(getPass(x0 - 1, y0 - 1) != 0))
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return kDirNW;
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if (((y0 - 1) >= 0) && (getPass(x0, y0 - 1) != 0))
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return kDirN;
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if (((x0 - 1) >= 0) && (getPass(x0 - 1, y0) != 0))
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return kDirW;
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return 0;
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}
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if (dir == (kLeft | kDown)) {
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if (((x0 - 1) >= 0) && ((y0 + 1) < _mapHeight) &&
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(getPass(x0 - 1, y0 + 1) != 0))
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return kDirSW;
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if (((y0 + 1) < _mapHeight) && (getPass(x0, y0 + 1) != 0))
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return kDirS;
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if (((x0 - 1) >= 0) && (getPass(x0 - 1, y0) != 0))
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return kDirW;
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return 0;
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}
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return -1;
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}
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int16 Map::findNearestWayPoint(int16 x, int16 y) {
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int16 nearestWayPoint = -1;
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int16 length;
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int16 tmp;
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length = 30000;
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for (int i = 0; i < _wayPointsCount; i++) {
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if ((_wayPoints[i].x < 0) || (_wayPoints[i].x >= _mapWidth) ||
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(_wayPoints[i].y < 0) || (_wayPoints[i].y >= _mapHeight))
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break;
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tmp = ABS(x - _wayPoints[i].x) + ABS(y - _wayPoints[i].y);
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if (tmp <= length) {
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nearestWayPoint = i;
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length = tmp;
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}
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}
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return nearestWayPoint;
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}
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void Map::findNearestWalkable(int16 &gobDestX, int16 &gobDestY,
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int16 mouseX, int16 mouseY) {
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int16 mapWidth, mapHeight;
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int16 pos1 = -1, pos2 = -1;
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int16 distance;
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int16 direction;
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int i;
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mapWidth = _screenWidth / _tilesWidth;
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mapHeight = _vm->_width / _tilesHeight;
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direction = 0;
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for (i = 1; i <= gobDestX; i++)
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if (getPass(gobDestX - i, gobDestY) != 0)
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break;
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if (i <= gobDestX)
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pos1 = ((i - 1) * _tilesWidth) + (mouseX % _tilesWidth) + 1;
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distance = i;
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for (i = 1; (gobDestX + i) < mapWidth; i++)
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if (getPass(gobDestX + i, gobDestY) != 0)
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break;
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if ((gobDestX + i) < mapWidth)
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pos2 = (i * _tilesWidth) - (mouseX % _tilesWidth);
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if ((pos2 != -1) && ((pos1 == -1) || (pos1 > pos2))) {
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pos1 = pos2;
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direction = 1;
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distance = i;
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}
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pos2 = -1;
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for (i = 1; (gobDestY + i) < mapHeight; i++)
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if (getPass(gobDestX, gobDestY + i) != 0)
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break;
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if ((gobDestY + i) < mapHeight)
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pos2 = (i * _tilesHeight) - (mouseY % _tilesHeight);
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if ((pos2 != -1) && ((pos1 == -1) || (pos1 > pos2))) {
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pos1 = pos2;
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direction = 2;
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distance = i;
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}
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pos2 = -1;
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for (i = 1; i <= gobDestY; i++)
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if (getPass(gobDestX, gobDestY - i) != 0)
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break;
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if (i <= gobDestY)
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pos2 = ((i - 1) * _tilesHeight) + (mouseY % _tilesHeight) + 1;
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if ((pos2 != -1) && ((pos1 == -1) || (pos1 > pos2))) {
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direction = 3;
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distance = i;
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}
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if (direction == 0)
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gobDestX -= distance;
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else if (direction == 1)
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gobDestX += distance;
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else if (direction == 2)
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gobDestY += distance;
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else if (direction == 3)
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gobDestY -= distance;
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}
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int16 Map::checkDirectPath(Mult::Mult_Object *obj,
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int16 x0, int16 y0, int16 x1, int16 y1) {
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uint16 dir;
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while (1) {
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dir = getDirection(x0, y0, x1, y1);
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if (obj) {
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if (obj->nearestWayPoint < obj->nearestDest) {
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if (_wayPoints[obj->nearestWayPoint + 1].notWalkable == 1)
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return 3;
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} else if (obj->nearestWayPoint > obj->nearestDest) {
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if (obj->nearestDest > 0)
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if (_wayPoints[obj->nearestDest - 1].notWalkable == 1)
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return 3;
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}
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}
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if ((x0 == x1) && (y0 == y1))
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return 1;
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if (dir == 0)
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return 3;
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switch (dir) {
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case kDirNW:
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x0--;
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y0--;
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break;
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case kDirN:
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y0--;
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break;
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case kDirNE:
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x0++;
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y0--;
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break;
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case kDirW:
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x0--;
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break;
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case kDirE:
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x0++;
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break;
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case kDirSW:
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x0--;
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y0++;
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break;
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case kDirS:
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y0++;
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break;
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case kDirSE:
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x0++;
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y0++;
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break;
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}
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}
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}
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int16 Map::checkLongPath(int16 x0, int16 y0,
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int16 x1, int16 y1, int16 i0, int16 i1) {
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uint16 dir = 0;
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int16 curX = x0;
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int16 curY = y0;
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int16 nextLink = 1;
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while (1) {
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if ((x0 == curX) && (y0 == curY))
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nextLink = 1;
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if (nextLink != 0) {
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if (checkDirectPath(0, x0, y0, x1, y1) == 1)
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return 1;
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nextLink = 0;
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if (i0 > i1) {
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curX = _wayPoints[i0].x;
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curY = _wayPoints[i0].y;
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i0--;
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} else if (i0 < i1) {
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curX = _wayPoints[i0].x;
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curY = _wayPoints[i0].y;
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i0++;
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} else if (i0 == i1) {
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curX = _wayPoints[i0].x;
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curY = _wayPoints[i0].y;
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}
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}
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if ((i0 == i1) && (_wayPoints[i0].x == x0) &&
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(_wayPoints[i0].y == y0)) {
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if (checkDirectPath(0, x0, y0, x1, y1) == 1)
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return 1;
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return 0;
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}
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dir = getDirection(x0, y0, curX, curY);
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switch (dir) {
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case 0:
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return 0;
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case kDirNW:
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x0--;
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y0--;
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break;
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case kDirN:
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y0--;
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break;
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case kDirNE:
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x0++;
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y0--;
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break;
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case kDirW:
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x0--;
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break;
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case kDirE:
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x0++;
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break;
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case kDirSW:
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x0--;
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y0++;
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break;
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case kDirS:
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y0++;
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break;
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case kDirSE:
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x0++;
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y0++;
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break;
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}
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}
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}
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void Map::loadMapsInitGobs(void) {
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int16 layer;
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if (!_loadFromAvo)
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error("Map::loadMapsInitGobs(): Loading .pas/.pos files is not supported!");
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for (int i = 0; i < 3; i++)
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_vm->_goblin->nextLayer(_vm->_goblin->_goblins[i]);
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for (int i = 0; i < 3; i++) {
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Goblin::Gob_Object &gob = *_vm->_goblin->_goblins[i];
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layer = gob.stateMach[gob.state][0]->layer;
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_vm->_scenery->updateAnim(layer, 0, gob.animation, 0,
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gob.xPos, gob.yPos, 0);
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gob.yPos = (_vm->_goblin->_gobPositions[i].y + 1) * 6 -
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(_vm->_scenery->_toRedrawBottom - _vm->_scenery->_animTop);
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gob.xPos = _vm->_goblin->_gobPositions[i].x * 12 -
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(_vm->_scenery->_toRedrawLeft - _vm->_scenery->_animLeft);
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gob.order = _vm->_scenery->_toRedrawBottom / 24 + 3;
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}
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_vm->_goblin->_currentGoblin = 0;
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_vm->_goblin->_pressedMapX = _vm->_goblin->_gobPositions[0].x;
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_vm->_goblin->_pressedMapY = _vm->_goblin->_gobPositions[0].y;
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_vm->_goblin->_pathExistence = 0;
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_vm->_goblin->_goblins[0]->doAnim = 0;
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_vm->_goblin->_goblins[1]->doAnim = 1;
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_vm->_goblin->_goblins[2]->doAnim = 1;
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}
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} // End of namespace Gob
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