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/*
* Copyright (c) 2010-2012 OTClient <https://github.com/edubart/otclient>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "map.h"
#include "game.h"
#include "localplayer.h"
#include "tile.h"
#include "item.h"
#include "missile.h"
#include "statictext.h"
#include <framework/core/eventdispatcher.h>
#include "mapview.h"
#include <framework/core/resourcemanager.h>
#include <framework/core/filestream.h>
#include <framework/core/binarytree.h>
#include <framework/core/application.h>
#include <framework/xml/tinyxml.h>
Map g_map;
void Map::terminate()
{
clean();
}
void Map::addMapView(const MapViewPtr& mapView)
{
m_mapViews.push_back(mapView);
}
void Map::removeMapView(const MapViewPtr& mapView)
{
auto it = std::find(m_mapViews.begin(), m_mapViews.end(), mapView);
if(it != m_mapViews.end())
m_mapViews.erase(it);
}
void Map::notificateTileUpdateToMapViews(const Position& pos)
{
for(const MapViewPtr& mapView : m_mapViews)
mapView->onTileUpdate(pos);
}
void Map::loadOtbm(const std::string& fileName)
{
FileStreamPtr fin = g_resources.openFile(fileName);
if(!fin)
stdext::throw_exception(stdext::format("Unable to load map '%s'", fileName));
fin->cache();
if(!g_things.isOtbLoaded())
stdext::throw_exception("OTB isn't loaded yet to load a map.");
if(fin->getU32())
stdext::throw_exception("Unknown file version detected");
BinaryTreePtr root = fin->getBinaryTree();
if(root->getU8())
stdext::throw_exception("could not read root property!");
uint32 headerVersion = root->getU32();
if(!headerVersion || headerVersion > 3)
stdext::throw_exception(stdext::format("Unknown OTBM version detected: %u.", headerVersion));
m_width = root->getU16();
m_height = root->getU16();
dump << "Map size: " << m_width << "x" << m_height;
uint32 headerMajorItems = root->getU8();
if(headerMajorItems < 3) {
stdext::throw_exception(stdext::format("This map needs to be upgraded. read %d what it's supposed to be: %u",
headerMajorItems, g_things.getOtbMajorVersion()));
}
if(headerMajorItems > g_things.getOtbMajorVersion()) {
stdext::throw_exception(stdext::format("This map was saved with different OTB version. read %d what it's supposed to be: %d",
headerMajorItems, g_things.getOtbMajorVersion()));
}
root->skip(3);
uint32 headerMinorItems = root->getU32();
if(headerMinorItems > g_things.getOtbMinorVersion()) {
g_logger.warning(stdext::format("This map needs an updated OTB. read %d what it's supposed to be: %d",
headerMinorItems, g_things.getOtbMinorVersion()));
}
BinaryTreePtr node = root->getChildren()[0];
if(node->getU8() != OTBM_MAP_DATA)
stdext::throw_exception("Could not read root data node");
while (node->canRead()) {
uint8 attribute = node->getU8();
std::string tmp = node->getString();
switch (attribute) {
case OTBM_ATTR_DESCRIPTION:
m_description += tmp + "\n";
break;
case OTBM_ATTR_SPAWN_FILE:
m_spawnFile = fileName.substr(0, fileName.rfind('/') + 1) + tmp;
break;
case OTBM_ATTR_HOUSE_FILE:
m_houseFile = fileName.substr(0, fileName.rfind('/') + 1) + tmp;
break;
default:
stdext::throw_exception(stdext::format("Invalid attribute '%c'", attribute));
}
}
for (const BinaryTreePtr &nodeMapData : node->getChildren()) {
uint8 mapDataType = nodeMapData->getU8();
if(mapDataType == OTBM_TILE_AREA) {
uint16 baseX = nodeMapData->getU16(), baseY = nodeMapData->getU16();
uint8 pz = nodeMapData->getU8();
for (const BinaryTreePtr &nodeTile : nodeMapData->getChildren()) {
uint8 type = nodeTile->getU8();
if(type != OTBM_TILE && type != OTBM_HOUSETILE)
stdext::throw_exception(stdext::format("invalid node tile type %d", (int)type));
ItemPtr ground = nullptr;
HousePtr house = nullptr;
uint32 flags = TILESTATE_NONE;
uint16 px = baseX + nodeTile->getU8(), py = baseY + nodeTile->getU8();
Position pos(px, py, pz);
if(type == OTBM_HOUSETILE) {
uint32 hId = nodeTile->getU32();
TilePtr tile = getOrCreateTile(pos);
if(!(house = m_houses.getHouse(hId))) {
house = HousePtr(new House(hId));
m_houses.addHouse(house);
}
house->setTile(tile);
}
while (nodeTile->canRead()) {
uint8 tileAttr = nodeTile->getU8();
switch (tileAttr) {
case OTBM_ATTR_TILE_FLAGS: {
uint32 _flags = nodeTile->getU32();
if((_flags & TILESTATE_PROTECTIONZONE) == TILESTATE_PROTECTIONZONE)
flags |= TILESTATE_PROTECTIONZONE;
else if((_flags & TILESTATE_OPTIONALZONE) == TILESTATE_OPTIONALZONE)
flags |= TILESTATE_OPTIONALZONE;
else if((_flags & TILESTATE_HARDCOREZONE) == TILESTATE_HARDCOREZONE)
flags |= TILESTATE_HARDCOREZONE;
if((_flags & TILESTATE_NOLOGOUT) == TILESTATE_NOLOGOUT)
flags |= TILESTATE_NOLOGOUT;
if((_flags & TILESTATE_REFRESH) == TILESTATE_REFRESH)
flags |= TILESTATE_REFRESH;
break;
}
case OTBM_ATTR_ITEM: {
addThing(Item::createFromOtb(nodeTile->getU16()), pos);
break;
}
default:
stdext::throw_exception(stdext::format("invalid tile attribute %d at pos %d, %d, %d",
(int)tileAttr, px, py, pz));
}
}
for (const BinaryTreePtr &nodeItem : nodeTile->getChildren()) {
if(nodeItem->getU8() != OTBM_ITEM)
stdext::throw_exception("invalid item node");
ItemPtr item = Item::createFromOtb(nodeItem->getU16());
item->unserializeItem(nodeItem);
if(item->isContainer()) {
// This is a temporary way for reading container items.
MapContainerPtr mapContainer(new MapContainer);
for (const BinaryTreePtr &insideItem : nodeItem->getChildren()) {
if(insideItem->getU8() != OTBM_ITEM)
stdext::throw_exception("invalid container item node");
ItemPtr newItem = Item::createFromOtb(insideItem->getU16());
newItem->unserializeItem(insideItem);
mapContainer->add(newItem);
}
m_containers.push_back(mapContainer);
}
if(house) {
if(item->isMoveable()) {
g_logger.warning(stdext::format("Movable item found in house: %d at pos %d %d %d - escaping...", item->getId(),
px, py, pz));
item = nullptr;
} else if(item->isDoor())
house->addDoor(item->getDoorId(), pos);
}
addThing(item, pos);
}
if(const TilePtr& tile = getTile(pos))
tile->setFlags((tileflags_t)flags);
}
} else if(mapDataType == OTBM_TOWNS) {
TownPtr town = nullptr;
for (const BinaryTreePtr &nodeTown : nodeMapData->getChildren()) {
if(nodeTown->getU8() != OTBM_TOWN)
stdext::throw_exception("invalid town node.");
uint32 townId = nodeTown->getU32();
std::string townName = nodeTown->getString();
Position townCoords(nodeTown->getU16(), nodeTown->getU16(), nodeTown->getU8());
if(!(town = m_towns.getTown(townId))) {
town = TownPtr(new Town(townId, townName, townCoords));
m_towns.addTown(town);
} else {
// override data
town->setName(townName);
town->setPos(townCoords);
town->setId(townId);
}
}
} else if(mapDataType == OTBM_WAYPOINTS && headerVersion > 1) {
for (const BinaryTreePtr &nodeWaypoint : nodeMapData->getChildren()) {
if(nodeWaypoint->getU8() != OTBM_WAYPOINT)
stdext::throw_exception("invalid waypoint node.");
std::string name = nodeWaypoint->getString();
Position waypointPos(nodeWaypoint->getU16(), nodeWaypoint->getU16(), nodeWaypoint->getU8());
if(waypointPos.isValid() && !name.empty() && m_waypoints.find(waypointPos) == m_waypoints.end())
m_waypoints.insert(std::make_pair(waypointPos, name));
}
} else
stdext::throw_exception("Unknown map data node");
}
int numItems = 0;
for(const auto& it : m_tiles)
numItems += it.second->getThingCount();
g_logger.debug(stdext::format("Total items: %d", numItems));
g_logger.debug(stdext::format("Total tiles: %d", m_tiles.size()));
g_logger.debug("OTBM read successfully.");
fin->close();
loadSpawns(m_spawnFile);
m_houses.load(m_houseFile);
}
void Map::saveOtbm(const std::string &fileName)
{
// TODO: Continue sleepy work.
#if 0
/// TODO: Use binary trees for this
FileStreamPtr fin = g_resources.openFile(fileName);
if(!fin)
stdext::throw_exception(stdext::format("failed to open file '%s'", fileName));
std::string dir;
if(fileName.find_last_of('/') <= 0)
dir = g_resources.getWorkDir();
else
dir = fileName.substr(0, fileName.find_last_of('/'));
if(m_houseFile.empty())
m_houseFile = "houses.xml";
if(m_spawnFile.empty())
m_spawnFile = "spawns.xml";
#if 0
if(!m_houses->save(dir + "/" + m_houseFile))
;
if(!m_spawns->save(dir + "/" + m_spawnFile))
;
#endif
uint32 ver;
if(g_things.getOtbMajorVersion() < 2)
ver =0;
else if(g_things.getOtbMajorVersion() < 10)
ver = 1;
else
ver = 2;
fin->addU32(0x00); // file version
{
fin->startNode(0x00); // root
fin->addU32(ver);
fin->addU16(m_width); // some random width.
fin->addU16(m_height); // some random height.
fin->addU32(g_things.getOtbMajorVersion());
fin->addU32(g_things.getOtbMinorVersion());
fin->startNode(OTBM_MAP_DATA); // map data node
{
// own description.
fin->addU8(OTBM_ATTR_DESCRIPTION);
fin->addString(m_description);
// special one
fin->addU8(OTBM_ATTR_DESCRIPTION);
fin->addString(stdext::format("Saved with %s v%d", g_app.getName(), stdext::unsafe_cast<int>(g_app.getVersion())));
// spawn file.
fin->addU8(OTBM_ATTR_SPAWN_FILE);
fin->addString(m_spawnFile);
// house file.
if(ver > 1) {
fin->addU8(OTBM_ATTR_HOUSE_FILE);
fin->addString(m_houseFile);
}
Position pos(-1, -1, -1);
Boolean<true> first;
for (auto& pair : m_tiles) {
TilePtr tile = pair.second;
if(!tile || tile->isEmpty())
continue;
Position tilePos = pair.first;
if(tilePos.x < pos.x || tilePos.x >= pos.x + 256 ||
tilePos.y < pos.y || tilePos.y >= pos.y + 256 ||
tilePos.z != pos.z) {
if(!first)
fin->endNode();
pos.x = tilePos.x & 0xFF00;
pos.y = tilePos.y & 0xFF00;
pos.z = tilePos.z;
fin->addU16(pos.x);
fin->addU16(pos.y);
fin->addU8(pos.z);
}
// TODO: hOUSES.
fin->startNode(OTBM_TILE);
fin->addU8(tilePos.x);
fin->addU8(tilePos.y);
#if 0
// TODO: hOUSES again.
if(is house tile)
add u32 house id...;
#endif
if(tile->flags()) {
fin->addU8(OTBM_ATTR_TILE_FLAGS);
fin->addU32(tile->flags());
}
}
}
}
#endif
}
void Map::loadSpawns(const std::string &fileName)
{
if(!m_monsters.isLoaded())
stdext::throw_exception("cannot load spawns; monsters aren't loaded.");
TiXmlDocument doc(fileName);
if(!doc.LoadFile())
stdext::throw_exception(stdext::format("cannot load spawns xml file '%s", fileName));
TiXmlElement* root = doc.FirstChildElement();
if(!root || root->ValueStr() != "spawns")
stdext::throw_exception("malformed spawns file");
for(TiXmlElement* node = root->FirstChildElement(); node; node = node->NextSiblingElement()) {
if (node->ValueTStr() != "spawn")
stdext::throw_exception("invalid spawn node");
Position centerPos = node->readPos("center");
for(TiXmlElement* mType = node->FirstChildElement(); mType; mType = mType->NextSiblingElement()) {
if (mType->ValueStr() != "monster")
stdext::throw_exception("invalid spawn-subnode");
std::string mName = mType->Attribute("name");
MonsterPtr m = m_monsters.getMonster(mName);
if (!m)
stdext::throw_exception(stdext::format("unkown monster %s", mName));
Point off = mType->readPoint();
Position mPos(centerPos.x + off.x, centerPos.y + off.y, centerPos.z);
addThing(m, mPos, -1);
}
}
}
bool Map::loadOtcm(const std::string& fileName)
{
try {
FileStreamPtr fin = g_resources.openFile(fileName);
if(!fin)
stdext::throw_exception("unable to open file");
fin->cache();
uint32 signature = fin->getU32();
if(signature != OTCM_SIGNATURE)
stdext::throw_exception("invalid otcm file");
uint16 start = fin->getU16();
uint16 version = fin->getU16();
fin->getU32(); // flags
switch(version) {
case 1: {
fin->getString(); // description
uint32 datSignature = fin->getU32();
fin->getU16(); // protocol version
fin->getString(); // world name
if(datSignature != g_things.getDatSignature())
g_logger.warning("otcm map loaded was created with a different dat signature");
break;
}
default:
stdext::throw_exception("otcm version not supported");
break;
}
fin->seek(start);
while(true) {
Position pos;
pos.x = fin->getU16();
pos.y = fin->getU16();
pos.z = fin->getU8();
// end of file
if(!pos.isValid())
break;
while(true) {
uint16 id = fin->getU16();
// end of tile
if(id == 0xFFFF)
break;
uint8 countOrSubType = fin->getU8();
ItemPtr item = Item::create(id);
if(item->isStackable() || item->isFluidContainer() || item->isSplash() || item->isChargeable())
item->setCountOrSubType(countOrSubType);
if(item->isValid())
addThing(item, pos);
}
}
fin->close();
return true;
} catch(stdext::exception& e) {
g_logger.error(stdext::format("failed to load OTCM map: %s", e.what()));
return false;
}
}
void Map::saveOtcm(const std::string& fileName)
{
try {
g_clock.update();
FileStreamPtr fin = g_resources.createFile(fileName);
fin->cache();
//TODO: compression flag with zlib
uint32 flags = 0;
// header
fin->addU32(OTCM_SIGNATURE);
fin->addU16(0); // data start, will be overwritten later
fin->addU16(OTCM_VERSION);
fin->addU32(flags);
// version 1 header
fin->addString("OTCM 1.0"); // map description
fin->addU32(g_things.getDatSignature());
fin->addU16(g_game.getProtocolVersion());
fin->addString(g_game.getWorldName());
// go back and rewrite where the map data starts
uint32 start = fin->tell();
fin->seek(4);
fin->addU16(start);
fin->seek(start);
for(auto& pair : m_tiles) {
const TilePtr& tile = pair.second;
if(!tile || tile->isEmpty())
continue;
Position pos = pair.first;
fin->addU16(pos.x);
fin->addU16(pos.y);
fin->addU8(pos.z);
const auto& list = tile->getThings();
auto first = std::find_if(list.begin(), list.end(), [](const ThingPtr& thing) { return thing->isItem(); });
for(auto it = first, end = list.end(); it != end; ++it) {
if(ItemPtr item = (*it)->asItem()) {
fin->addU16(item->getId());
fin->addU8(item->getCountOrSubType());
}
}
// end of tile
fin->addU16(0xFFFF);
}
// end of file
Position invalidPos;
fin->addU16(invalidPos.x);
fin->addU16(invalidPos.y);
fin->addU8(invalidPos.z);
fin->flush();
fin->close();
} catch(stdext::exception& e) {
g_logger.error(stdext::format("failed to save OTCM map: %s", e.what()));
}
}
void Map::clean()
{
cleanDynamicThings();
m_tiles.clear();
m_waypoints.clear();
// This is a fix to a segfault on exit.
m_towns.clear();
m_houses.clear();
m_monsters.clear();
}
void Map::cleanDynamicThings()
{
for(const auto& pair : m_knownCreatures) {
const CreaturePtr& creature = pair.second;
removeThing(creature);
creature->setRemoved(true);
}
m_knownCreatures.clear();
for(int i=0;i<=Otc::MAX_Z;++i)
m_floorMissiles[i].clear();
cleanTexts();
}
void Map::cleanTexts()
{
m_animatedTexts.clear();
m_staticTexts.clear();
}
void Map::addThing(const ThingPtr& thing, const Position& pos, int stackPos)
{
if(!thing)
return;
TilePtr tile = getOrCreateTile(pos);
Position oldPos = thing->getPosition();
if(thing->isItem() || thing->isCreature() || thing->isEffect()) {
tile->addThing(thing, stackPos);
} else if(thing->isMissile()) {
m_floorMissiles[pos.z].push_back(thing->asMissile());
} else if(thing->isAnimatedText()) {
m_animatedTexts.push_back(thing->asAnimatedText());
} else if(thing->isStaticText()) {
StaticTextPtr staticText = thing->asStaticText();
bool mustAdd = true;
for(auto it = m_staticTexts.begin(), end = m_staticTexts.end(); it != end; ++it) {
StaticTextPtr cStaticText = *it;
if(cStaticText->getPosition() == pos) {
// try to combine messages
if(cStaticText->addMessage(staticText->getName(), staticText->getMessageType(), staticText->getFirstMessage())) {
mustAdd = false;
break;
} else {
// must add another message and rearrenge current
}
}
}
if(mustAdd)
m_staticTexts.push_back(staticText);
}
thing->startAnimation();
thing->setPosition(pos);
if(thing->isCreature()) {
CreaturePtr creature = thing->asCreature();
if(oldPos != pos) {
if(oldPos.isInRange(pos,1,1))
g_game.processCreatureMove(creature, oldPos, pos);
else
g_game.processCreatureTeleport(creature);
}
}
notificateTileUpdateToMapViews(pos);
}
ThingPtr Map::getThing(const Position& pos, int stackPos)
{
if(TilePtr tile = getTile(pos))
return tile->getThing(stackPos);
return nullptr;
}
bool Map::removeThing(const ThingPtr& thing)
{
if(!thing)
return false;
notificateTileUpdateToMapViews(thing->getPosition());
if(MissilePtr missile = thing->asMissile()) {
int z = missile->getPosition().z;
auto it = std::find(m_floorMissiles[z].begin(), m_floorMissiles[z].end(), missile);
if(it != m_floorMissiles[z].end()) {
m_floorMissiles[z].erase(it);
return true;
}
} else if(AnimatedTextPtr animatedText = thing->asAnimatedText()) {
auto it = std::find(m_animatedTexts.begin(), m_animatedTexts.end(), animatedText);
if(it != m_animatedTexts.end()) {
m_animatedTexts.erase(it);
return true;
}
} else if(StaticTextPtr staticText = thing->asStaticText()) {
auto it = std::find(m_staticTexts.begin(), m_staticTexts.end(), staticText);
if(it != m_staticTexts.end()) {
m_staticTexts.erase(it);
return true;
}
} else if(const TilePtr& tile = thing->getTile())
return tile->removeThing(thing);
return false;
}
bool Map::removeThingByPos(const Position& pos, int stackPos)
{
if(TilePtr tile = getTile(pos))
return removeThing(tile->getThing(stackPos));
return false;
}
template <typename... Items>
TilePtr Map::createTileEx(const Position& pos, const Items&... items)
{
TilePtr tile = getOrCreateTile(pos);
auto vec = {items...};
for (auto it : vec)
addThing(it, pos);
return tile;
}
TilePtr Map::createTile(const Position& pos)
{
TilePtr tile = TilePtr(new Tile(pos));
m_tiles[pos] = tile;
return tile;
}
const TilePtr& Map::getTile(const Position& pos)
{
auto it = m_tiles.find(pos);
if(it != m_tiles.end())
return it->second;
static TilePtr nulltile;
return nulltile;
}
TilePtr Map::getOrCreateTile(const Position& pos)
{
const TilePtr& tile = getTile(pos);
if(tile)
return tile;
else
return createTile(pos);
}
void Map::cleanTile(const Position& pos)
{
if(TilePtr tile = getTile(pos)) {
tile->clean();
if(tile->canErase())
m_tiles.erase(m_tiles.find(pos));
notificateTileUpdateToMapViews(pos);
}
}
void Map::addCreature(const CreaturePtr& creature)
{
m_knownCreatures[creature->getId()] = creature;
}
CreaturePtr Map::getCreatureById(uint32 id)
{
auto it = m_knownCreatures.find(id);
if(it == m_knownCreatures.end())
return nullptr;
return it->second;
}
void Map::removeCreatureById(uint32 id)
{
if(id == 0)
return;
auto it = m_knownCreatures.find(id);
if(it != m_knownCreatures.end())
it->second->setRemoved(true);
m_knownCreatures.erase(it);
}
void Map::setCentralPosition(const Position& centralPosition)
{
m_centralPosition = centralPosition;
// remove creatures from tiles that we are not aware anymore
for(const auto& pair : m_knownCreatures) {
const CreaturePtr& creature = pair.second;
if(!isAwareOfPosition(creature->getPosition()))
removeThing(creature);
}
// this fixes local player position when the local player is removed from the map,
// the local player is removed from the map when there are too many creatures on his tile,
// so there is no enough stackpos to the server send him
g_dispatcher.addEvent([this] {
LocalPlayerPtr localPlayer = g_game.getLocalPlayer();
if(!localPlayer || localPlayer->getPosition() == m_centralPosition)
return;
TilePtr tile = localPlayer->getTile();
if(tile && tile->hasThing(localPlayer))
return;
Position oldPos = localPlayer->getPosition();
Position pos = m_centralPosition;
localPlayer->setPosition(pos);
if(oldPos != pos) {
if(oldPos.isInRange(pos,1,1))
g_game.processCreatureMove(localPlayer, oldPos, pos);
else
g_game.processCreatureTeleport(localPlayer);
}
});
for(const MapViewPtr& mapView : m_mapViews)
mapView->onMapCenterChange(centralPosition);
}
std::vector<CreaturePtr> Map::getSpectators(const Position& centerPos, bool multiFloor)
{
return getSpectatorsInRange(centerPos, multiFloor, (Otc::VISIBLE_X_TILES - 1)/2, (Otc::VISIBLE_Y_TILES - 1)/2);
}
std::vector<CreaturePtr> Map::getSpectatorsInRange(const Position& centerPos, bool multiFloor, int xRange, int yRange)
{
return getSpectatorsInRangeEx(centerPos, multiFloor, xRange, xRange, yRange, yRange);
}
std::vector<CreaturePtr> Map::getSpectatorsInRangeEx(const Position& centerPos, bool multiFloor, int minXRange, int maxXRange, int minYRange, int maxYRange)
{
int minZRange = 0;
int maxZRange = 0;
std::vector<CreaturePtr> creatures;
if(multiFloor) {
minZRange = 0;
maxZRange = Otc::MAX_Z;
}
//TODO: optimize
//TODO: get creatures from other floors corretly
//TODO: delivery creatures in distance order
for(int iz=-minZRange; iz<=maxZRange; ++iz) {
for(int iy=-minYRange; iy<=maxYRange; ++iy) {
for(int ix=-minXRange; ix<=maxXRange; ++ix) {
TilePtr tile = getTile(centerPos.translated(ix,iy,iz));
if(!tile)
continue;
auto tileCreatures = tile->getCreatures();
creatures.insert(creatures.end(), tileCreatures.rbegin(), tileCreatures.rend());
}
}
}
return creatures;
}
bool Map::isLookPossible(const Position& pos)
{
TilePtr tile = getTile(pos);
return tile && tile->isLookPossible();
}
bool Map::isCovered(const Position& pos, int firstFloor)
{
// check for tiles on top of the postion
Position tilePos = pos;
while(tilePos.coveredUp() && tilePos.z >= firstFloor) {
TilePtr tile = getTile(tilePos);
// the below tile is covered when the above tile has a full ground
if(tile && tile->isFullGround())
return true;
}
return false;
}
bool Map::isCompletelyCovered(const Position& pos, int firstFloor)
{
Position tilePos = pos;
while(tilePos.coveredUp() && tilePos.z >= firstFloor) {
bool covered = true;
// check in 2x2 range tiles that has no transparent pixels
for(int x=0;x<2;++x) {
for(int y=0;y<2;++y) {
const TilePtr& tile = getTile(tilePos.translated(-x, -y));
if(!tile || !tile->isFullyOpaque()) {
covered = false;
break;
}
}
}
if(covered)
return true;
}
return false;
}
bool Map::isAwareOfPosition(const Position& pos)
{
if(pos.z < getFirstAwareFloor() || pos.z > getLastAwareFloor())
return false;
Position groundedPos = pos;
while(groundedPos.z != m_centralPosition.z) {
if(groundedPos.z > m_centralPosition.z)
groundedPos.coveredUp();
else
groundedPos.coveredDown();
}
return m_centralPosition.isInRange(groundedPos, Otc::AWARE_X_LEFT_TILES,
Otc::AWARE_X_RIGHT_TILES,
Otc::AWARE_Y_TOP_TILES,
Otc::AWARE_Y_BOTTOM_TILES);
}
int Map::getFirstAwareFloor()
{
if(m_centralPosition.z > Otc::SEA_FLOOR)
return m_centralPosition.z-Otc::AWARE_UNDEGROUND_FLOOR_RANGE;
else
return 0;
}
int Map::getLastAwareFloor()
{
if(m_centralPosition.z > Otc::SEA_FLOOR)
return std::min(m_centralPosition.z+Otc::AWARE_UNDEGROUND_FLOOR_RANGE, (int)Otc::MAX_Z);
else
return Otc::SEA_FLOOR;
}
std::tuple<std::vector<Otc::Direction>, Otc::PathFindResult> Map::findPath(const Position& startPos, const Position& goalPos, int maxSteps)
{
// pathfinding using A* search algorithm
// as described in http://en.wikipedia.org/wiki/A*_search_algorithm
struct Node {
Node(const Position& pos) : cost(0), totalCost(0), steps(0), pos(pos), prev(nullptr), dir(Otc::InvalidDirection), evaluated(false) { }
bool operator<(const Node& other) const { return totalCost < other.totalCost; }
float cost;
float totalCost;
int steps;
Position pos;
Node *prev;
Otc::Direction dir;
bool evaluated;
};
struct LessNode : std::binary_function<Node*, Node*, bool> {
bool operator()(Node* a, Node* b) const {
return b->totalCost < a->totalCost;
}
};
std::tuple<std::vector<Otc::Direction>, Otc::PathFindResult> ret;
std::vector<Otc::Direction>& dirs = std::get<0>(ret);
Otc::PathFindResult& result = std::get<1>(ret);
result = Otc::PATHFIND_OK;
if(startPos == goalPos) {
result = Otc::PATHFIND_SAME_POSITION;
return ret;
}
if(startPos.z != goalPos.z) {
result = Otc::PATHFIND_IMPOSSIBLE;
return ret;
}
if(startPos.distance(goalPos) > maxSteps) {
result = Otc::PATHFIND_TOO_FAR;
return ret;
}
std::unordered_map<Position, Node*, PositionHasher> nodes;
std::priority_queue<Node*, std::vector<Node*>, LessNode> searchList;
Node *currentNode = new Node(startPos);
currentNode->pos = startPos;
nodes[startPos] = currentNode;
Node *foundNode = nullptr;
while(currentNode && currentNode->steps < maxSteps) {
if(currentNode->pos == goalPos && (!foundNode || currentNode->cost < foundNode->cost))
foundNode = currentNode;
if(foundNode && currentNode->totalCost >= foundNode->cost)
break;
for(int i=-1;i<=1;++i) {
for(int j=-1;j<=1;++j) {
if(i == 0 && j == 0)
continue;
Position neighborPos = currentNode->pos.translated(i, j);
const TilePtr& tile = getTile(neighborPos);
if(!tile || (!tile->isPathable() && neighborPos != goalPos) || (!tile->isWalkable() && neighborPos == goalPos))
continue;
float walkFactor;
Otc::Direction walkDir = currentNode->pos.getDirectionFromPosition(neighborPos);
if(walkDir >= Otc::NorthEast)
walkFactor = 3.0f;
else
walkFactor = 1.0f;
float cost = currentNode->cost + (tile->getGroundSpeed() * walkFactor) / 100.0f;
Node *neighborNode;
if(nodes.find(neighborPos) == nodes.end()) {
neighborNode = new Node(neighborPos);
nodes[neighborPos] = neighborNode;
} else {
neighborNode = nodes[neighborPos];
if(neighborNode->cost < cost)
continue;
}
neighborNode->prev = currentNode;
neighborNode->cost = cost;
neighborNode->steps = currentNode->steps + 1;
neighborNode->totalCost = neighborNode->cost + neighborPos.distance(goalPos);
neighborNode->dir = walkDir;
neighborNode->evaluated = false;
searchList.push(neighborNode);
}
}
currentNode->evaluated = true;
currentNode = nullptr;
while(searchList.size() > 0 && !currentNode) {
Node *node = searchList.top();
searchList.pop();
if(!node->evaluated)
currentNode = node;
}
}
if(foundNode) {
currentNode = foundNode;
while(currentNode) {
dirs.push_back(currentNode->dir);
currentNode = currentNode->prev;
}
dirs.pop_back();
std::reverse(dirs.begin(), dirs.end());
} else
result = Otc::PATHFIND_NO_WAY;
for(auto it : nodes)
delete it.second;
return ret;
}
MonsterPtr Map::getMonster(const std::string& name)
{
return m_monsters.getMonster(stdext::tolower(name));
}