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AAIExecute.cpp
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// -------------------------------------------------------------------------
// AAI
//
// A skirmish AI for the Spring engine.
// Copyright Alexander Seizinger
//
// Released under GPL license: see LICENSE.html for more information.
// -------------------------------------------------------------------------
#include "AAI.h"
#include "AAIExecute.h"
#include "AAIBrain.h"
#include "AAIUnitTable.h"
#include "AAIConstructor.h"
#include "AAIBuildTask.h"
#include "AAIConfig.h"
#include "AAIMap.h"
#include "AAIGroup.h"
#include "AAISector.h"
#include "LegacyCpp/UnitDef.h"
#include "LegacyCpp/CommandQueue.h"
using namespace springLegacyAI;
// all the static vars
float AAIExecute::current = 0.5f;
float AAIExecute::learned = 2.5f;
AAIExecute::AAIExecute(AAI *ai) :
m_constructionUrgency(AAIUnitCategory::numberOfUnitCategories, 0.0f),
m_constructionFunctions(AAIUnitCategory::numberOfUnitCategories, nullptr),
m_sectorToBuildNextDefence(nullptr),
m_nextDefenceVsTargetType(ETargetType::UNKNOWN),
m_unitProductionRate (1),
m_numberOfIssuedOrders(0),
m_linkingBuildTaskToBuilderFailed(0u)
{
this->ai = ai;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::STATIC_DEFENCE).GetArrayIndex()] = &AAIExecute::BuildDefences;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::STATIC_ARTILLERY).GetArrayIndex()] = &AAIExecute::BuildArty;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::STORAGE).GetArrayIndex()] = &AAIExecute::BuildStorage;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::STATIC_CONSTRUCTOR).GetArrayIndex()] = &AAIExecute::BuildStaticConstructor;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::STATIC_SENSOR).GetArrayIndex()] = &AAIExecute::BuildRadar;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::POWER_PLANT).GetArrayIndex()] = &AAIExecute::BuildPowerPlant;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::METAL_EXTRACTOR).GetArrayIndex()] = &AAIExecute::BuildExtractor;
m_constructionFunctions[AAIUnitCategory(EUnitCategory::METAL_MAKER).GetArrayIndex()] = &AAIExecute::BuildMetalMaker;
}
AAIExecute::~AAIExecute(void)
{
}
void AAIExecute::InitAI(UnitId commanderUnitId, UnitDefId commanderDefId)
{
//debug
ai->Log("Playing as %s\n", cfg->sideNames[ai->GetSide()].c_str());
if(ai->GetSide() < 1 || ai->GetSide() > cfg->numberOfSides)
{
ai->LogConsole("ERROR: invalid side id %i\n", ai->GetSide());
return;
}
ai->Log("My team / ally team: %i / %i\n", ai->GetMyTeamId(), ai->GetAICallback()->GetMyAllyTeam());
// tell the brain about the starting sector
const float3 pos = ai->GetAICallback()->GetUnitPos(commanderUnitId.id);
int x = pos.x/AAIMap::xSectorSize;
int y = pos.z/AAIMap::ySectorSize;
if(x < 0)
x = 0;
if(y < 0)
y = 0;
if(x >= AAIMap::xSectors)
x = AAIMap::xSectors-1;
if(y >= AAIMap::ySectors)
y = AAIMap::ySectors-1;
// set sector as part of the base
if(AAIMap::s_teamSectorMap.IsSectorOccupied( SectorIndex(x,y) ) )
{
// sector already occupied by another aai team (coms starting too close to each other)
// choose next free sector
ChooseDifferentStartingSector(x, y);
}
else
{
SectorMap& sectors = ai->Map()->GetSectorMap();
ai->Brain()->AssignSectorToBase(§ors[x][y], true);
}
ai->Brain()->ExpandBaseAtStartup();
ai->UnitTable()->AddConstructor(commanderUnitId, commanderDefId);
// get economy working
CheckRessources();
}
void AAIExecute::SendUnitToPosition(UnitId unitId, const float3& position) const
{
Command c(CMD_MOVE);
c.PushPos(position);
//ai->Getcb()->GiveOrder(unit, &c);
GiveOrder(&c, unitId.id, "SendUnitToPosition");
ai->UnitTable()->SetUnitStatus(unitId.id, MOVING);
}
void AAIExecute::stopUnit(int unit)
{
Command c(CMD_STOP);
//ai->Getcb()->GiveOrder(unit, &c);
GiveOrder(&c, unit, "StopUnit");
ai->UnitTable()->SetUnitStatus(unit, UNIT_IDLE);
}
// returns true if unit is busy
bool AAIExecute::IsBusy(int unit)
{
const CCommandQueue* commands = ai->GetAICallback()->GetCurrentUnitCommands(unit);
if(commands->empty())
return false;
return true;
}
// adds a unit to the group of attackers
void AAIExecute::AddUnitToGroup(const UnitId& unitId, const UnitDefId& unitDefId)
{
// determine continent if necessary
int continentId = -1;
const AAIMovementType& moveType = ai->s_buildTree.GetMovementType(unitDefId);
if( moveType.CannotMoveToOtherContinents() )
{
const float3 unitPos = ai->GetAICallback()->GetUnitPos(unitId.id);
continentId = AAIMap::GetContinentID(unitPos);
}
// try to add unit to an existing group
const AAIUnitCategory& category = ai->s_buildTree.GetUnitCategory(unitDefId);
for(auto group = ai->GetUnitGroupsList(category).begin(); group != ai->GetUnitGroupsList(category).end(); ++group)
{
if((*group)->AddUnit(unitId, unitDefId, continentId))
{
ai->UnitTable()->units[unitId.id].group = *group;
return;
}
}
// end of grouplist has been reached and unit has not been assigned to any group
// -> create new one
AAIGroup *new_group = new AAIGroup(ai, unitDefId, continentId);
new_group->AddUnit(unitId, unitDefId, continentId);
ai->UnitTable()->units[unitId.id].group = new_group;
ai->GetUnitGroupsList(category).push_back(new_group);
}
void AAIExecute::BuildCombatUnitOfCategory(const AAIMovementType& moveType, const TargetTypeValues& combatPowerCriteria, const UnitSelectionCriteria& unitSelectionCriteria, const std::vector<float>& factoryUtilization, bool urgent)
{
// determine random float in [0:1]
const float randomValue = 0.01f * static_cast<float>(std::rand()%101);
// select unit independently from available constructor from time to time (to make sure AAI will order factories for advanced units as the game progresses)
const float contructorRequiredRate = moveType.IsAir() ? 0.5f : 0.85f;
const bool constructorAvailable = (randomValue < contructorRequiredRate) && (ai->UnitTable()->activeFactories > 0);
const UnitDefId unitDefId = ai->BuildTable()->SelectCombatUnit(ai->GetSide(), moveType, combatPowerCriteria, unitSelectionCriteria, factoryUtilization, 6, constructorAvailable);
// Order construction of selected unit
if(unitDefId.IsValid())
{
const AAIUnitCategory& category = ai->s_buildTree.GetUnitCategory(unitDefId);
const StatisticalData& costStatistics = ai->s_buildTree.GetUnitStatistics(ai->GetSide()).GetUnitCostStatistics(category);
int numberOfUnits(1);
if(ai->s_buildTree.GetTotalCost(unitDefId) < cfg->MAX_COST_LIGHT_ASSAULT * costStatistics.GetMaxValue())
numberOfUnits = 3;
else if(ai->s_buildTree.GetTotalCost(unitDefId) < cfg->MAX_COST_MEDIUM_ASSAULT * costStatistics.GetMaxValue())
numberOfUnits = 2;
if( ai->BuildTable()->units_dynamic[unitDefId.id].constructorsAvailable <= 0 )
ai->BuildTable()->RequestFactoryFor(unitDefId);
else
TryAddingUnitsToBuildqueue(unitDefId, numberOfUnits, BuildQueuePosition::END);
}
}
void AAIExecute::BuildScouts()
{
if(ai->UnitTable()->GetTotalNumberOfUnitsOfCategory(EUnitCategory::SCOUT) < cfg->MAX_SCOUTS)
{
const ScoutSelectionCriteria scoutSelectionCriteria = ai->Brain()->DetermineScoutSelectionCriteria();
const uint32_t suitableMovementTypes = ai->Map()->GetSuitableMovementTypesForMap();
const bool availableFactoryNeeded = (rand()%5 == 1) ? false : true;
const UnitDefId scoutId = ai->BuildTable()->SelectScout(ai->GetSide(), scoutSelectionCriteria, suitableMovementTypes, availableFactoryNeeded);
if(scoutId.IsValid())
{
const BuildQueuePosition queuePosition = (ai->UnitTable()->GetNumberOfActiveUnitsOfCategory(EUnitCategory::SCOUT) > 1) ? BuildQueuePosition::END : BuildQueuePosition::FRONT;
TryAddingUnitsToBuildqueue(scoutId.id, 1, queuePosition, true);
}
}
}
void AAIExecute::SendScoutToNewDest(UnitId scoutId) const
{
const float3 nextScoutDestination = ai->Map()->GetNewScoutDest(scoutId);
if(nextScoutDestination.x > 0.0f)
SendUnitToPosition(scoutId, nextScoutDestination);
}
BuildSite AAIExecute::DetermineBuildsite(UnitId builder, UnitDefId buildingDefId) const
{
//-----------------------------------------------------------------------------------------------------------------
// check the sector of the builder first
//-----------------------------------------------------------------------------------------------------------------
const float3 builderPosition = ai->GetAICallback()->GetUnitPos(builder.id);
const AAISector* sector = ai->Map()->GetSectorOfPos(builderPosition);
if(sector && (sector->GetDistanceToBase() == 0) )
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(buildingDefId, sector);
if(buildSite.IsValid())
return buildSite;
}
//-----------------------------------------------------------------------------------------------------------------
// look in any of the base sectors
//-----------------------------------------------------------------------------------------------------------------
for(auto sector : ai->Brain()->m_sectorsInDistToBase[0])
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(buildingDefId, sector);
if(buildSite.IsValid())
return buildSite;
}
return BuildSite();
}
BuildSite AAIExecute::DetermineBuildsiteInSector(UnitDefId building, const AAISector* sector) const
{
// try random buildpos first
const BuildSite buildsite = sector->DetermineRandomBuildsite(building, 20);
if(buildsite.IsValid() )
return buildsite;
else
{
// search systematically for buildpos (i.e. search returns a buildpos if one is available in the sector)
return ai->Map()->DetermineBuildsiteInSector(building, sector);
}
}
BuildSite AAIExecute::DetermineBuildsiteForUnit(UnitId constructor, UnitDefId unitDefId) const
{
const float3 constructorPosition = ai->GetAICallback()->GetUnitPos(constructor.id);
BuildSite selectedBuildsite;
float minDist = AAIMap::s_maxSquaredMapDist;
for(auto sector : ai->Brain()->m_sectorsInDistToBase[1])
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(unitDefId, sector);
if(buildSite.IsValid())
{
const float dx = buildSite.Position().x - constructorPosition.x;
const float dy = buildSite.Position().z - constructorPosition.z;
const float squaredDist = dx*dx +dy*dy;
if(squaredDist < minDist)
{
minDist = squaredDist;
selectedBuildsite = buildSite;
}
}
}
return selectedBuildsite;
}
bool AAIExecute::TryAddingUnitsToBuildqueue(UnitDefId unitDefId, int number, BuildQueuePosition queuePosition, bool ignoreMaxQueueLength)
{
Buildqueue selectedBuildqueue = ai->BuildTable()->DetermineBuildqueue(unitDefId);
// determine position
if(selectedBuildqueue.IsValid())
return AddUnitsToBuildqueue(unitDefId, number, selectedBuildqueue, queuePosition, ignoreMaxQueueLength);
else
return false;
}
bool AAIExecute::AddUnitsToBuildqueue(UnitDefId unitDefId, int number, Buildqueue buildqueue, BuildQueuePosition position, bool ignoreMaxQueueLength)
{
if( ignoreMaxQueueLength || (buildqueue.GetLength() < cfg->MAX_BUILDQUE_SIZE))
{
buildqueue.AddUnits(unitDefId, number, position);
ai->BuildTable()->units_dynamic[unitDefId.id].requested += number;
ai->UnitTable()->UnitRequested(ai->s_buildTree.GetUnitCategory(unitDefId), number);
return true;
}
return false;
}
// ****************************************************************************************************
// all building functions
// ****************************************************************************************************
BuildOrderStatus AAIExecute::TryConstructionOf(UnitDefId landBuilding, UnitDefId seaBuilding, const AAISector* sector)
{
BuildOrderStatus buildOrderStatus;
if(sector->GetWaterTilesRatio() < 0.15f)
{
buildOrderStatus = TryConstructionOf(landBuilding, sector);
}
else if(sector->GetWaterTilesRatio() < 0.85f)
{
buildOrderStatus = TryConstructionOf(landBuilding, sector);
if(buildOrderStatus != BuildOrderStatus::SUCCESSFUL)
buildOrderStatus = TryConstructionOf(seaBuilding, sector);
}
else
{
buildOrderStatus = TryConstructionOf(seaBuilding, sector);
}
return buildOrderStatus;
}
BuildOrderStatus AAIExecute::TryConstructionOf(UnitDefId building, const AAISector* sector)
{
if(building.IsValid())
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(building, sector);
if(buildSite.IsValid())
{
const AvailableConstructor selectedConstructor = ai->UnitTable()->FindClosestBuilder(building, buildSite.Position(), true);
if(selectedConstructor.IsValid())
{
selectedConstructor.Constructor()->GiveConstructionOrder(building, buildSite.Position());
return BuildOrderStatus::SUCCESSFUL;
}
else
{
ai->BuildTable()->RequestBuilderFor(building);
return BuildOrderStatus::NO_BUILDER_AVAILABLE;
}
}
else
{
if(ai->s_buildTree.GetMovementType(building).IsStaticLand() )
ai->Brain()->ExpandBase(EMapType::LAND);
else
ai->Brain()->ExpandBase(EMapType::WATER);
ai->Log("Base expanded when looking for buildsite for %s\n", ai->s_buildTree.GetUnitTypeProperties(building).m_name.c_str());
return BuildOrderStatus::NO_BUILDSITE_FOUND;
}
}
return BuildOrderStatus::BUILDING_INVALID;
}
template<typename T>
struct InsertByRatingComparator
{
bool operator()(const std::pair<T, float>& lhs, const std::pair<T, float>& rhs) const
{
return lhs.second > rhs.second;
}
};
bool AAIExecute::BuildExtractor()
{
ExtractorSelectionCriteria selectionCriteria = ai->Brain()->DetermineExtractorSelectionCriteria();
//-----------------------------------------------------------------------------------------------------------------
// metal map
//-----------------------------------------------------------------------------------------------------------------
if(AAIMap::s_isMetalMap)
{
// get id of an extractor and look for suitable builder
const UnitDefId landExtractor = ai->BuildTable()->SelectExtractor(ai->GetSide(), selectionCriteria, false);
if(landExtractor.IsValid())
{
AAIConstructor* land_builder = ai->UnitTable()->FindBuilder(landExtractor, true);
if(land_builder)
{
const BuildSite buildSite = DetermineBuildsite(land_builder->m_myUnitId, landExtractor);
if(buildSite.IsValid())
land_builder->GiveConstructionOrder(landExtractor, buildSite.Position());
return true;
}
else
{
ai->BuildTable()->RequestBuilderFor(landExtractor);
return false;
}
}
}
//-----------------------------------------------------------------------------------------------------------------
// normal map
//-----------------------------------------------------------------------------------------------------------------
// check the first 10 free spots for the one with least distance to available builder
const int maxExtractorBuildSpots(10);
std::set< std::pair<AvailableMetalSpot, float>, InsertByRatingComparator<AvailableMetalSpot> > extractorSpots;
// determine max search dist - prevent crashes on smaller maps
const int maxSearchDist = std::min(cfg->MAX_MEX_DISTANCE, static_cast<int>(ai->Brain()->m_sectorsInDistToBase.size()) );
bool freeMetalSpotFound = false;
for(int distanceFromBase = 0; distanceFromBase < maxSearchDist; ++distanceFromBase)
{
if(distanceFromBase > 0)
selectionCriteria.armed = 0.5f;
for(auto sector : ai->Brain()->m_sectorsInDistToBase[distanceFromBase])
{
if( sector->ShallBeConsideredForExtractorConstruction() )
{
for(auto spot : sector->metalSpots)
{
if(!spot->occupied)
{
freeMetalSpotFound = true;
const bool water = (spot->pos.y >= 0.0f) ? false : true;
const UnitDefId extractor = ai->BuildTable()->SelectExtractor(ai->GetSide(), selectionCriteria, water);
const AvailableConstructor selectedConstructor = ai->UnitTable()->FindClosestBuilder(extractor, spot->pos, ai->Brain()->IsCommanderAllowedForConstructionInSector(sector));
const float rating = (1.0f + ai->Map()->GetDistanceToCenterOfEnemyBase(spot->pos)) / (1.0f + selectedConstructor.TravelTimeToBuildSite());
if(selectedConstructor.IsValid())
extractorSpots.insert( std::pair<AvailableMetalSpot, float>(AvailableMetalSpot(spot, selectedConstructor.Constructor(), extractor), rating) );
}
}
}
if(extractorSpots.size() >= maxExtractorBuildSpots)
break;
}
// stop looking for metal spots further away from base if already one found
if( (distanceFromBase > 3) && (extractorSpots.size() > 0) )
break;
}
// look for spot with minimum dist to available builder
if(extractorSpots.size() > 0)
{
const AvailableMetalSpot& metalSpot = (extractorSpots.begin())->first;
// order mex construction for best spot
metalSpot.builder->GiveConstructionOrder(metalSpot.extractor, metalSpot.metalSpot->pos);
metalSpot.metalSpot->occupied = true;
return true;
}
// dont build other things if construction could not be started due to unavailable builders
if(freeMetalSpotFound)
return false;
else
return true;
}
bool AAIExecute::BuildPowerPlant()
{
const bool minimumNumberOfFactoriesNotMet = (ai->UnitTable()->activeFactories < 1)
&& (ai->UnitTable()->GetNumberOfActiveUnitsOfCategory(EUnitCategory::POWER_PLANT) >= 2);
// stop building power plants if
// - if construction of power plant ordered but not yet started
// - already to much available energy
// - minimum number of factories not constructed
if( (ai->UnitTable()->GetNumberOfRequestedUnitsOfCategory(EUnitCategory::POWER_PLANT) > 0)
|| (ai->Brain()->GetAveragePowerSurplus() > AAIConstants::powerSurplusToStopPowerPlantConstructionThreshold)
|| minimumNumberOfFactoriesNotMet)
return true;
// if power plant is already under construction try to assist construction of other power plants first
if(ai->UnitTable()->GetNumberOfUnitsUnderConstructionOfCategory(EUnitCategory::POWER_PLANT) > 0)
return AssistConstructionOfCategory(EUnitCategory::POWER_PLANT);
//-----------------------------------------------------------------------------------------------------------------
// determine eligible sector (and sort them according to their rating)
//-----------------------------------------------------------------------------------------------------------------
std::list<AAISector*> sectors;
DetermineSectorsToConstructEco(sectors);
//-----------------------------------------------------------------------------------------------------------------
// try to build power plant (start with highest rated sector)
//-----------------------------------------------------------------------------------------------------------------
PowerPlantSelectionCriteria selectionCriteria = ai->Brain()->DeterminePowerPlantSelectionCriteria();
// do not try offshore construction if base edoes not contain water
bool offshoreConstructionAttempted( (ai->Brain()->GetBaseWaterRatio() < 0.05f) );
BuildOrderStatus buildOrderStatus(BuildOrderStatus::BUILDING_INVALID);
if(ai->UnitTable()->GetNumberOfActiveBuilders() == 1)
{
UnitDefId landPowerPlant = ai->BuildTable()->SelectPowerPlant(ai->GetSide(), selectionCriteria, false);
UnitDefId seaPowerPlant = ai->BuildTable()->SelectPowerPlant(ai->GetSide(), selectionCriteria, true);
AAIConstructor* constructor = ai->UnitTable()->FindBuilder(landPowerPlant, true);
if(constructor == nullptr)
constructor = ai->UnitTable()->FindBuilder(seaPowerPlant, true);
if(constructor == nullptr)
return false; // no builder currently available -> check again next update
BuildSite buildSite = ai->Map()->FindBuildsiteCloseToUnit(landPowerPlant, constructor->m_myUnitId);
if(buildSite.IsValid())
{
constructor->GiveConstructionOrder(landPowerPlant, buildSite.Position());
}
else
{
buildSite = ai->Map()->FindBuildsiteCloseToUnit(seaPowerPlant, constructor->m_myUnitId);
if(buildSite.IsValid())
constructor->GiveConstructionOrder(seaPowerPlant, buildSite.Position());
}
}
else
{
// probability of trying to build sea power plant first is related to current water ratio of the base
// determine random float in [0:1]
const float randomValue = 0.01f * static_cast<float>(std::rand()%101);
if( randomValue < ai->Brain()->GetBaseWaterRatio() )
{
UnitDefId seaPowerPlant = ai->BuildTable()->SelectPowerPlant(ai->GetSide(), selectionCriteria, true);
buildOrderStatus = ConstructBuildingInSectors(seaPowerPlant, sectors);
offshoreConstructionAttempted = true;
}
// try construction on land (if not already successful on water)
if(buildOrderStatus != BuildOrderStatus::SUCCESSFUL)
{
UnitDefId landPowerPlant = ai->BuildTable()->SelectPowerPlant(ai->GetSide(), selectionCriteria, false);
buildOrderStatus = ConstructBuildingInSectors(landPowerPlant, sectors);
}
// try construction on water (if not already tried and construction on land has not been successful)
if(!offshoreConstructionAttempted && (buildOrderStatus != BuildOrderStatus::SUCCESSFUL) )
{
UnitDefId seaPowerPlant = ai->BuildTable()->SelectPowerPlant(ai->GetSide(), selectionCriteria, true);
buildOrderStatus = ConstructBuildingInSectors(seaPowerPlant, sectors);
}
if(buildOrderStatus == BuildOrderStatus::NO_BUILDER_AVAILABLE)
return false;
}
//-----------------------------------------------------------------------------------------------------------------
// expand base if no suitable buildsite found
//-----------------------------------------------------------------------------------------------------------------
return true;
}
void AAIExecute::DetermineSectorsToConstructEco(std::list<AAISector*>& sectors) const
{
const float previousGamesWeight = 54000.0f / static_cast<float>(2*ai->GetAICallback()->GetCurrentFrame() + 54000);
const float currentGameWeight = 1.0f - previousGamesWeight;
std::set< std::pair<AAISector*, float>, InsertByRatingComparator<AAISector*> > availableSectors;
for(auto sector : ai->Brain()->m_sectorsInDistToBase[0])
{
const float rating = sector->GetRatingForPowerPlant(previousGamesWeight, currentGameWeight);
if(rating > 0.0f)
availableSectors.insert( std::pair<AAISector*, float>(sector, rating) );
}
for(auto sector : availableSectors)
sectors.push_back(sector.first);
}
BuildOrderStatus AAIExecute::ConstructBuildingInSectors(UnitDefId building, std::list<AAISector*>& availableSectors)
{
if(building.IsValid() == false)
return BuildOrderStatus::BUILDING_INVALID;
const bool water = ai->s_buildTree.GetMovementType(building).IsSea();
for(auto sector : availableSectors)
{
if( ( water && sector->GetWaterTilesRatio() > 0.05f)
|| (!water && sector->GetFlatTilesRatio() > 0.05f) )
{
BuildOrderStatus buildOrderStatus = TryConstructionOfBuilding(building, sector);
// continue with next sector if no buildsite found in current sector - abort if successful or no constrcution unit available
if(buildOrderStatus == BuildOrderStatus::SUCCESSFUL)
return buildOrderStatus;
else if(buildOrderStatus == BuildOrderStatus::NO_BUILDER_AVAILABLE)
{
ai->BuildTable()->RequestBuilderFor(building);
return buildOrderStatus;
}
}
}
return BuildOrderStatus::NO_BUILDSITE_FOUND;
}
BuildOrderStatus AAIExecute::TryConstructionOfBuilding(UnitDefId building, AAISector* sector)
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(building, sector);
if(buildSite.IsValid())
{
const AvailableConstructor selectedConstructor = ai->UnitTable()->FindClosestBuilder(building, buildSite.Position(), true);
if(selectedConstructor.IsValid())
{
selectedConstructor.Constructor()->GiveConstructionOrder(building, buildSite.Position());
return BuildOrderStatus::SUCCESSFUL;
}
else
return BuildOrderStatus::NO_BUILDER_AVAILABLE;
}
else
return BuildOrderStatus::NO_BUILDSITE_FOUND;
}
bool AAIExecute::BuildMetalMaker()
{
const AAIUnitCategory metalMaker(EUnitCategory::METAL_EXTRACTOR);
if( (ai->UnitTable()->activeFactories < 1) && (ai->UnitTable()->GetNumberOfActiveUnitsOfCategory(metalMaker) >= 2) )
return true;
if( ai->UnitTable()->GetNumberOfFutureUnitsOfCategory(metalMaker) > 0)
return true;
bool checkWater, checkGround;
AAIConstructor *builder;
// urgency < 4
float urgency = ai->Brain()->GetMetalUrgency() / 2.0f;
float cost = 0.25f + ai->Brain()->Affordable() / 2.0f;
float efficiency = 0.25f + ai->UnitTable()->GetNumberOfActiveUnitsOfCategory(AAIUnitCategory(EUnitCategory::METAL_MAKER)) / 4.0f ;
float metal = efficiency;
// sort sectors according to threat level
learned = 70000.0 / (ai->GetAICallback()->GetCurrentFrame() + 35000) + 1;
current = 2.5 - learned;
ai->Brain()->m_sectorsInDistToBase[0].sort(least_dangerous);
for(auto sector = ai->Brain()->m_sectorsInDistToBase[0].begin(); sector != ai->Brain()->m_sectorsInDistToBase[0].end(); ++sector)
{
if((*sector)->GetWaterTilesRatio() < 0.15f)
{
checkWater = false;
checkGround = true;
}
else if((*sector)->GetWaterTilesRatio() < 0.85f)
{
checkWater = true;
checkGround = true;
}
else
{
checkWater = true;
checkGround = false;
}
if(checkGround)
{
UnitDefId maker = ai->BuildTable()->GetMetalMaker(ai->GetSide(), cost, efficiency, metal, urgency, false, false);
// currently aai cannot build this building
if(maker.IsValid() && ai->BuildTable()->units_dynamic[maker.id].constructorsAvailable <= 0)
{
if(ai->BuildTable()->units_dynamic[maker.id].constructorsRequested <= 0)
ai->BuildTable()->RequestBuilderFor(maker);
maker = ai->BuildTable()->GetMetalMaker(ai->GetSide(), cost, efficiency, metal, urgency, false, true);
}
if(maker.IsValid())
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(maker, *sector);
if(buildSite.IsValid())
{
const AvailableConstructor selectedConstructor = ai->UnitTable()->FindClosestBuilder(maker, buildSite.Position(), true);
if(selectedConstructor.IsValid())
{
selectedConstructor.Constructor()->GiveConstructionOrder(maker, buildSite.Position());
return true;
}
else
{
ai->BuildTable()->RequestBuilderFor(maker);
return false;
}
}
else
{
ai->Brain()->ExpandBase(EMapType::LAND);
ai->Log("Base expanded by BuildMetalMaker()\n");
}
}
}
if(checkWater)
{
UnitDefId maker = ai->BuildTable()->GetMetalMaker(ai->GetSide(), ai->Brain()->Affordable(), 8.0/(urgency+2.0), 64.0/(16*urgency+2.0), urgency, true, false);
// currently aai cannot build this building
if(maker.IsValid() && ai->BuildTable()->units_dynamic[maker.id].constructorsAvailable <= 0)
{
if(ai->BuildTable()->units_dynamic[maker.id].constructorsRequested <= 0)
ai->BuildTable()->RequestBuilderFor(maker);
maker = ai->BuildTable()->GetMetalMaker(ai->GetSide(), ai->Brain()->Affordable(), 8.0/(urgency+2.0), 64.0/(16*urgency+2.0), urgency, true, true);
}
if(maker.IsValid())
{
const BuildSite buildSite = ai->Map()->DetermineBuildsiteInSector(maker, *sector);
if(buildSite.IsValid())
{
const AvailableConstructor selectedConstructor = ai->UnitTable()->FindClosestBuilder(maker, buildSite.Position(), true);
if(selectedConstructor.IsValid())
{
selectedConstructor.Constructor()->GiveConstructionOrder(maker, buildSite.Position());
return true;
}
else
{
ai->BuildTable()->RequestBuilderFor(maker);
return false;
}
}
else
{
ai->Brain()->ExpandBase(EMapType::WATER);
ai->Log("Base expanded by BuildMetalMaker() (water sector)\n");
}
}
}
}
return true;
}
bool AAIExecute::BuildStorage()
{
const AAIUnitCategory storage(EUnitCategory::STORAGE);
if( (ai->UnitTable()->GetNumberOfFutureUnitsOfCategory(storage) > 0)
|| (ai->UnitTable()->GetNumberOfActiveUnitsOfCategory(storage) >= cfg->MAX_STORAGE)
|| (ai->UnitTable()->activeFactories < 1) )
return true;
//-----------------------------------------------------------------------------------------------------------------
// determine eligible sector (and sort them according to their rating)
//-----------------------------------------------------------------------------------------------------------------
std::list<AAISector*> sectors;
DetermineSectorsToConstructEco(sectors);
//-----------------------------------------------------------------------------------------------------------------
// try to build storage (start with highest rated sector)
//-----------------------------------------------------------------------------------------------------------------
StorageSelectionCriteria selectionCriteria = ai->Brain()->DetermineStorageSelectionCriteria();
// do not try offshore construction if base edoes not contain water
bool offshoreConstructionAttempted( (ai->Brain()->GetBaseWaterRatio() < 0.05f) );
BuildOrderStatus buildOrderStatus(BuildOrderStatus::BUILDING_INVALID);
// probability of trying to build sea power plant first is related to current water ratio of the base
// determine random float in [0:1]
const float randomValue = 0.01f * static_cast<float>(std::rand()%101);
if( randomValue < ai->Brain()->GetBaseWaterRatio() )
{
UnitDefId seaStorage = ai->BuildTable()->SelectStorage(ai->GetSide(), selectionCriteria, true);
buildOrderStatus = ConstructBuildingInSectors(seaStorage, sectors);
offshoreConstructionAttempted = true;
}
// try construction on land (if not already successful on water)
if(buildOrderStatus != BuildOrderStatus::SUCCESSFUL)
{
UnitDefId landStorage = ai->BuildTable()->SelectStorage(ai->GetSide(), selectionCriteria, false);
buildOrderStatus = ConstructBuildingInSectors(landStorage, sectors);
}
// try construction on water (if not already tried and construction on land has not been successful)
if(!offshoreConstructionAttempted && (buildOrderStatus != BuildOrderStatus::SUCCESSFUL) )
{
UnitDefId seaStorage = ai->BuildTable()->SelectStorage(ai->GetSide(), selectionCriteria, true);
buildOrderStatus = ConstructBuildingInSectors(seaStorage, sectors);
}
if(buildOrderStatus == BuildOrderStatus::NO_BUILDER_AVAILABLE)
return false;
//-----------------------------------------------------------------------------------------------------------------
// expand base if no suitable buildsite found
//-----------------------------------------------------------------------------------------------------------------
return true;
}
bool AAIExecute::BuildAirBase()
{
return true; //! @todo detection of air base currently broken
/*if(ai->Getut()->futureUnits[AIR_BASE] + ai->Getut()->requestedUnits[AIR_BASE] > 0 || ai->Getut()->activeUnits[AIR_BASE] >= cfg->MAX_AIR_BASE)
return true;
int airbase = 0;
bool checkWater, checkGround;
AAIConstructor *builder;
float3 pos;
for(list<AAISector*>::iterator sector = ai->Getbrain()->sectors[0].begin(); sector != ai->Getbrain()->sectors[0].end(); ++sector)
{
if((*sector)->GetWaterTilesRatio() < 0.15)
{
checkWater = false;
checkGround = true;
}
else if((*sector)->GetWaterTilesRatio() < 0.85)
{
checkWater = true;
checkGround = true;
}
else
{
checkWater = true;
checkGround = false;
}
if(checkGround)
{
airbase = ai->Getbt()->GetAirBase(ai->Getside(), ai->Getbrain()->Affordable(), false, false);
if(airbase && ai->Getbt()->units_dynamic[airbase].constructorsAvailable <= 0)
{
if(ai->Getbt()->units_dynamic[airbase].constructorsRequested <= 0)
ai->Getbt()->BuildBuilderFor(UnitDefId(airbase));
airbase = ai->Getbt()->GetAirBase(ai->Getside(), ai->Getbrain()->Affordable(), false, true);
}
if(airbase)
{
pos = (*sector)->GetBuildsite(airbase, false);
if(pos.x > 0)
{
float min_dist;
builder = ai->Getut()->FindClosestBuilder(airbase, &pos, true, &min_dist);
if(builder)
{
builder->GiveConstructionOrder(airbase, pos, false);
return true;
}
else
{
ai->Getbt()->BuildBuilderFor(UnitDefId(airbase));
return false;
}
}
else
{
ai->Getbrain()->ExpandBase(LAND_SECTOR);
ai->Log("Base expanded by BuildAirBase()\n");
}
}
}
if(checkWater)
{
airbase = ai->Getbt()->GetAirBase(ai->Getside(), ai->Getbrain()->Affordable(), true, false);
if(airbase && ai->Getbt()->units_dynamic[airbase].constructorsAvailable <= 0 )
{
if(ai->Getbt()->units_dynamic[airbase].constructorsRequested <= 0)
ai->Getbt()->BuildBuilderFor(UnitDefId(airbase));
airbase = ai->Getbt()->GetAirBase(ai->Getside(), ai->Getbrain()->Affordable(), true, true);
}
if(airbase)
{
pos = (*sector)->GetBuildsite(airbase, true);
if(pos.x > 0)
{
float min_dist;
builder = ai->Getut()->FindClosestBuilder(airbase, &pos, true, &min_dist);
if(builder)
{
builder->GiveConstructionOrder(airbase, pos, true);
return true;
}
else
{
ai->Getbt()->BuildBuilderFor(UnitDefId(airbase));
return false;
}
}
else
{
ai->Getbrain()->ExpandBase(WATER_SECTOR);
ai->Log("Base expanded by BuildAirBase() (water sector)\n");
}
}
}
}
return true;*/
}
bool AAIExecute::BuildDefences()
{
if( (ai->UnitTable()->GetNumberOfFutureUnitsOfCategory(EUnitCategory::STATIC_DEFENCE) > 2)
|| (m_sectorToBuildNextDefence == nullptr) )
return true;
BuildOrderStatus status = BuildStationaryDefenceVS(m_nextDefenceVsTargetType, m_sectorToBuildNextDefence);
if(status == BuildOrderStatus::NO_BUILDER_AVAILABLE)
return false;
else if(status == BuildOrderStatus::NO_BUILDSITE_FOUND)
m_sectorToBuildNextDefence->FailedToConstructStaticDefence();
m_sectorToBuildNextDefence = nullptr;
return true;
}
BuildOrderStatus AAIExecute::BuildStationaryDefenceVS(const AAITargetType& targetType, const AAISector *dest)
{
// dont build in sectors already occupied by allies
if(dest->GetNumberOfAlliedBuildings() > 2)
return BuildOrderStatus::SUCCESSFUL;
//-----------------------------------------------------------------------------------------------------------------
// dont start construction of further defences if expensive defences are already under construction in this sector
//-----------------------------------------------------------------------------------------------------------------
for(const auto task : ai->GetBuildTasks())
{
if(task->IsExpensiveUnitOfCategoryInSector(ai, EUnitCategory::STATIC_DEFENCE, dest) )
return BuildOrderStatus::SUCCESSFUL;
}
//-----------------------------------------------------------------------------------------------------------------
// determine criteria for selection of static defence and its buildsite