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vcmi/lib/rmg/ConnectionsPlacer.cpp
2023-02-14 02:50:39 +03:00

291 lines
8.8 KiB
C++

/*
* ConnectionsPlacer.cpp, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#include "StdInc.h"
#include "ConnectionsPlacer.h"
#include "CMapGenerator.h"
#include "RmgMap.h"
#include "../TerrainHandler.h"
#include "../mapping/CMap.h"
#include "../mapping/CMapEditManager.h"
#include "../mapObjects/CObjectClassesHandler.h"
#include "RmgPath.h"
#include "RmgObject.h"
#include "ObjectManager.h"
#include "Functions.h"
#include "RoadPlacer.h"
#include "TileInfo.h"
#include "WaterAdopter.h"
#include "WaterProxy.h"
#include "TownPlacer.h"
VCMI_LIB_NAMESPACE_BEGIN
void ConnectionsPlacer::process()
{
collectNeighbourZones();
for(auto & c : dConnections)
{
if(c.getZoneA() != zone.getId() && c.getZoneB() != zone.getId())
continue;
if(vstd::contains(dCompleted, c))
continue;
selfSideDirectConnection(c);
}
createBorder(map, zone);
for(auto & c : dConnections)
{
if(c.getZoneA() != zone.getId() && c.getZoneB() != zone.getId())
continue;
if(vstd::contains(dCompleted, c))
continue;
selfSideIndirectConnection(c);
}
}
void ConnectionsPlacer::init()
{
DEPENDENCY(WaterAdopter);
DEPENDENCY(TownPlacer);
POSTFUNCTION(RoadPlacer);
POSTFUNCTION(ObjectManager);
for(auto c : map.getMapGenOptions().getMapTemplate()->getConnections())
addConnection(c);
}
void ConnectionsPlacer::addConnection(const rmg::ZoneConnection& connection)
{
dConnections.push_back(connection);
}
void ConnectionsPlacer::otherSideConnection(const rmg::ZoneConnection & connection)
{
dCompleted.push_back(connection);
}
void ConnectionsPlacer::selfSideDirectConnection(const rmg::ZoneConnection & connection)
{
bool success = false;
auto otherZoneId = (connection.getZoneA() == zone.getId() ? connection.getZoneB() : connection.getZoneA());
auto & otherZone = map.getZones().at(otherZoneId);
//1. Try to make direct connection
//Do if it's not prohibited by terrain settings
const auto * ourTerrain = VLC->terrainTypeHandler->getById(zone.getTerrainType());
const auto * otherTerrain = VLC->terrainTypeHandler->getById(otherZone->getTerrainType());
bool directProhibited = vstd::contains(ourTerrain->prohibitTransitions, otherZone->getTerrainType())
|| vstd::contains(otherTerrain->prohibitTransitions, zone.getTerrainType());
auto directConnectionIterator = dNeighbourZones.find(otherZoneId);
if(!directProhibited && directConnectionIterator != dNeighbourZones.end())
{
int3 guardPos(-1, -1, -1);
int3 borderPos;
while(!directConnectionIterator->second.empty())
{
borderPos = *RandomGeneratorUtil::nextItem(directConnectionIterator->second, generator.rand);
guardPos = zone.areaPossible().nearest(borderPos);
assert(borderPos != guardPos);
auto safetyGap = rmg::Area({guardPos});
safetyGap.unite(safetyGap.getBorderOutside());
safetyGap.intersect(zone.areaPossible());
if(!safetyGap.empty())
{
safetyGap.intersect(otherZone->areaPossible());
if(safetyGap.empty())
break; //successfull position
}
//failed position
directConnectionIterator->second.erase(borderPos);
guardPos = int3(-1, -1, -1);
}
if(guardPos.valid())
{
assert(zone.getModificator<ObjectManager>());
auto & manager = *zone.getModificator<ObjectManager>();
auto * monsterType = manager.chooseGuard(connection.getGuardStrength(), true);
rmg::Area border(zone.getArea().getBorder());
border.unite(otherZone->getArea().getBorder());
auto costFunction = [&border](const int3 & s, const int3 & d)
{
return 1.f / (1.f + border.distanceSqr(d));
};
auto ourArea = zone.areaPossible() + zone.freePaths();
auto theirArea = otherZone->areaPossible() + otherZone->freePaths();
theirArea.add(guardPos);
rmg::Path ourPath(ourArea);
rmg::Path theirPath(theirArea);
ourPath.connect(zone.freePaths());
ourPath = ourPath.search(guardPos, true, costFunction);
theirPath.connect(otherZone->freePaths());
theirPath = theirPath.search(guardPos, true, costFunction);
if(ourPath.valid() && theirPath.valid())
{
zone.connectPath(ourPath);
otherZone->connectPath(theirPath);
if(monsterType)
{
rmg::Object monster(*monsterType);
monster.setPosition(guardPos);
manager.placeObject(monster, false, true);
}
else
{
zone.areaPossible().erase(guardPos);
zone.freePaths().add(guardPos);
map.setOccupied(guardPos, ETileType::FREE);
}
assert(zone.getModificator<RoadPlacer>());
zone.getModificator<RoadPlacer>()->addRoadNode(guardPos);
assert(otherZone->getModificator<RoadPlacer>());
otherZone->getModificator<RoadPlacer>()->addRoadNode(borderPos);
assert(otherZone->getModificator<ConnectionsPlacer>());
otherZone->getModificator<ConnectionsPlacer>()->otherSideConnection(connection);
success = true;
}
}
}
//2. connect via water
bool waterMode = map.getMapGenOptions().getWaterContent() != EWaterContent::NONE;
if(waterMode && zone.isUnderground() == otherZone->isUnderground())
{
if(generator.getZoneWater() && generator.getZoneWater()->getModificator<WaterProxy>())
{
if(generator.getZoneWater()->getModificator<WaterProxy>()->waterKeepConnection(connection.getZoneA(), connection.getZoneB()))
{
assert(otherZone->getModificator<ConnectionsPlacer>());
otherZone->getModificator<ConnectionsPlacer>()->otherSideConnection(connection);
success = true;
}
}
}
if(success)
dCompleted.push_back(connection);
}
void ConnectionsPlacer::selfSideIndirectConnection(const rmg::ZoneConnection & connection)
{
bool success = false;
auto otherZoneId = (connection.getZoneA() == zone.getId() ? connection.getZoneB() : connection.getZoneA());
auto & otherZone = map.getZones().at(otherZoneId);
//3. place subterrain gates
if(zone.isUnderground() != otherZone->isUnderground())
{
int3 zShift(0, 0, zone.getPos().z - otherZone->getPos().z);
auto commonArea = zone.areaPossible() * (otherZone->areaPossible() + zShift);
if(!commonArea.empty())
{
assert(zone.getModificator<ObjectManager>());
auto & manager = *zone.getModificator<ObjectManager>();
assert(otherZone->getModificator<ObjectManager>());
auto & managerOther = *otherZone->getModificator<ObjectManager>();
auto factory = VLC->objtypeh->getHandlerFor(Obj::SUBTERRANEAN_GATE, 0);
auto * gate1 = factory->create();
auto * gate2 = factory->create();
rmg::Object rmgGate1(*gate1);
rmg::Object rmgGate2(*gate2);
rmgGate1.setTemplate(zone.getTerrainType());
rmgGate2.setTemplate(otherZone->getTerrainType());
bool guarded1 = manager.addGuard(rmgGate1, connection.getGuardStrength(), true);
bool guarded2 = managerOther.addGuard(rmgGate2, connection.getGuardStrength(), true);
int minDist = 3;
rmg::Path path2(otherZone->area());
rmg::Path path1 = manager.placeAndConnectObject(commonArea, rmgGate1, [this, minDist, &path2, &rmgGate1, &zShift, guarded2, &managerOther, &rmgGate2 ](const int3 & tile)
{
auto ti = map.getTile(tile);
float dist = ti.getNearestObjectDistance();
if(dist < minDist)
return -1.f;
rmg::Area toPlace(rmgGate1.getArea() + rmgGate1.getAccessibleArea());
toPlace.translate(-zShift);
path2 = managerOther.placeAndConnectObject(toPlace, rmgGate2, minDist, guarded2, true, ObjectManager::OptimizeType::NONE);
return path2.valid() ? 1.f : -1.f;
}, guarded1, true, ObjectManager::OptimizeType::NONE);
if(path1.valid() && path2.valid())
{
zone.connectPath(path1);
otherZone->connectPath(path2);
manager.placeObject(rmgGate1, guarded1, true);
managerOther.placeObject(rmgGate2, guarded2, true);
assert(otherZone->getModificator<ConnectionsPlacer>());
otherZone->getModificator<ConnectionsPlacer>()->otherSideConnection(connection);
success = true;
}
}
}
//4. place monoliths/portals
if(!success)
{
auto factory = VLC->objtypeh->getHandlerFor(Obj::MONOLITH_TWO_WAY, generator.getNextMonlithIndex());
auto * teleport1 = factory->create();
auto * teleport2 = factory->create();
zone.getModificator<ObjectManager>()->addRequiredObject(teleport1, connection.getGuardStrength());
otherZone->getModificator<ObjectManager>()->addRequiredObject(teleport2, connection.getGuardStrength());
assert(otherZone->getModificator<ConnectionsPlacer>());
otherZone->getModificator<ConnectionsPlacer>()->otherSideConnection(connection);
success = true;
}
if(success)
dCompleted.push_back(connection);
}
void ConnectionsPlacer::collectNeighbourZones()
{
auto border = zone.area().getBorderOutside();
for(const auto & i : border)
{
if(!map.isOnMap(i))
continue;
auto zid = map.getZoneID(i);
assert(zid != zone.getId());
dNeighbourZones[zid].insert(i);
}
}
VCMI_LIB_NAMESPACE_END