void CDefendTask::FindTarget()
{
CCircuitAI* circuit = manager->GetCircuit();
auto enemies = std::move(circuit->GetCallback()->GetEnemyUnitsIn(GetPosition(), radius));
if (enemies.empty()) {
enemies = std::move(circuit->GetCallback()->GetEnemyUnitsIn(circuit->GetSetupManager()->GetBasePos(), radius));
if (enemies.empty()) {
SetTarget(nullptr);
return;
}
}
CEnemyUnit* bestTarget = nullptr;
float minSqDist = std::numeric_limits<float>::max();
for (Unit* e : enemies) {
if (e == nullptr) {
continue;
}
CEnemyUnit* enemy = circuit->GetEnemyUnit(e);
if (enemy != nullptr) {
float sqDist = GetPosition().SqDistance2D(enemy->GetPos());
if (minSqDist > sqDist) {
minSqDist = sqDist;
bestTarget = enemy;
}
}
delete e;
}
SetTarget(bestTarget);
}
void CRetreatTask::OnUnitIdle(CCircuitUnit* unit)
{
CCircuitAI* circuit = manager->GetCircuit();
int frame = circuit->GetLastFrame();
CFactoryManager* factoryManager = circuit->GetFactoryManager();
AIFloat3 haven = (repairer != nullptr) ? repairer->GetPos(frame) : factoryManager->GetClosestHaven(unit);
if (haven == -RgtVector) {
haven = circuit->GetSetupManager()->GetBasePos();
}
if (unit->GetCircuitDef()->IsPlane()) {
// force rearm/repair | CMD_FIND_PAD
unit->GetUnit()->Fight(haven, UNIT_COMMAND_OPTION_RIGHT_MOUSE_KEY, frame + FRAMES_PER_SEC * 60);
return;
}
const float maxDist = factoryManager->GetAssistDef()->GetBuildDistance();
const AIFloat3& unitPos = unit->GetPos(frame);
if (unitPos.SqDistance2D(haven) > maxDist * maxDist) {
// TODO: push MoveAction into unit? to avoid enemy fire
unit->GetUnit()->MoveTo(haven, UNIT_COMMAND_OPTION_RIGHT_MOUSE_KEY, frame + FRAMES_PER_SEC * 1);
// TODO: Add fail counter?
} else {
// TODO: push WaitAction into unit
// unit->GetUnit()->ExecuteCustomCommand(CMD_PRIORITY, {0.0f});
AIFloat3 pos = unitPos;
const float size = SQUARE_SIZE * 16;
CTerrainManager* terrainManager = circuit->GetTerrainManager();
float centerX = terrainManager->GetTerrainWidth() / 2;
float centerZ = terrainManager->GetTerrainHeight() / 2;
pos.x += (pos.x > centerX) ? size : -size;
pos.z += (pos.z > centerZ) ? size : -size;
AIFloat3 oldPos = pos;
terrainManager->CorrectPosition(pos);
if (oldPos.SqDistance2D(pos) > SQUARE_SIZE * SQUARE_SIZE) {
pos = unitPos;
pos.x += (pos.x > centerX) ? -size : size;
pos.z += (pos.z > centerZ) ? -size : size;
}
CTerrainManager::TerrainPredicate predicate = [unitPos](const AIFloat3& p) {
return unitPos.SqDistance2D(p) > SQUARE(SQUARE_SIZE * 8);
};
pos = terrainManager->FindBuildSite(unit->GetCircuitDef(), pos, maxDist, UNIT_COMMAND_BUILD_NO_FACING, predicate);
unit->GetUnit()->PatrolTo(pos);
IUnitAction* act = static_cast<IUnitAction*>(unit->End());
if (act->IsAny(IUnitAction::Mask::MOVE | IUnitAction::Mask::FIGHT)) {
static_cast<ITravelAction*>(act)->SetFinished(true);
}
}
}
void IFighterTask::Update()
{
CCircuitAI* circuit = manager->GetCircuit();
CMilitaryManager* militaryManager = circuit->GetMilitaryManager();
const float minShield = circuit->GetSetupManager()->GetEmptyShield();
decltype(units) tmpUnits = shields;
for (CCircuitUnit* unit : tmpUnits) {
if (!unit->IsShieldCharged(minShield)) {
CRetreatTask* task = militaryManager->EnqueueRetreat();
manager->AssignTask(unit, task);
}
}
}
void IFighterTask::OnUnitDamaged(CCircuitUnit* unit, CEnemyUnit* attacker)
{
CCircuitAI* circuit = manager->GetCircuit();
int frame = circuit->GetLastFrame();
CCircuitDef* cdef = unit->GetCircuitDef();
Unit* u = unit->GetUnit();
const float healthPerc = u->GetHealth() / u->GetMaxHealth();
if (unit->GetShield() != nullptr) {
const float minShield = circuit->GetSetupManager()->GetEmptyShield();
if ((healthPerc > cdef->GetRetreat()) && unit->IsShieldCharged(minShield)) {
if (cdef->IsRoleHeavy() && (healthPerc < 0.9f)) {
circuit->GetBuilderManager()->EnqueueRepair(IBuilderTask::Priority::NOW, unit);
}
return;
}
} else if ((healthPerc > cdef->GetRetreat()) && !unit->IsDisarmed(frame)) {
if (cdef->IsRoleHeavy() && (healthPerc < 0.9f)) {
circuit->GetBuilderManager()->EnqueueRepair(IBuilderTask::Priority::NOW, unit);
}
return;
} else if (healthPerc < 0.2f) { // stuck units workaround: they don't shoot and don't see distant threat
CRetreatTask* task = manager->GetCircuit()->GetMilitaryManager()->EnqueueRetreat();
manager->AssignTask(unit, task);
return;
}
CThreatMap* threatMap = circuit->GetThreatMap();
const float range = cdef->GetMaxRange();
if ((target == nullptr) || !target->IsInLOS()) {
CRetreatTask* task = circuit->GetMilitaryManager()->EnqueueRetreat();
manager->AssignTask(unit, task);
return;
}
const AIFloat3& pos = unit->GetPos(frame);
if ((target->GetPos().SqDistance2D(pos) > SQUARE(range)) ||
(threatMap->GetThreatAt(unit, pos) * 2 > threatMap->GetUnitThreat(unit)))
{
CRetreatTask* task = circuit->GetMilitaryManager()->EnqueueRetreat();
manager->AssignTask(unit, task);
return;
}
cowards.insert(unit);
}
void CRetreatTask::CheckRepairer(CCircuitUnit* unit)
{
CCircuitAI* circuit = manager->GetCircuit();
int frame = circuit->GetLastFrame();
CPathFinder* pathfinder = circuit->GetPathfinder();
AIFloat3 startPos = (*units.begin())->GetPos(frame);
AIFloat3 endPos;
float range;
bool isRepairer = (repairer != nullptr);
if (isRepairer) {
endPos = repairer->GetPos(frame);
range = pathfinder->GetSquareSize();
} else {
CFactoryManager* factoryManager = circuit->GetFactoryManager();
endPos = factoryManager->GetClosestHaven(unit);
if (endPos == -RgtVector) {
endPos = circuit->GetSetupManager()->GetBasePos();
}
range = factoryManager->GetAssistDef()->GetBuildDistance() * 0.6f + pathfinder->GetSquareSize();
}
circuit->GetTerrainManager()->CorrectPosition(startPos);
pathfinder->SetMapData(unit, circuit->GetThreatMap(), frame);
float prevCost = pathfinder->PathCost(startPos, endPos, range);
if (isRepairer && repairer->GetCircuitDef()->IsMobile()) {
prevCost /= 4;
}
endPos = unit->GetPos(frame);
float nextCost = pathfinder->PathCost(startPos, endPos, range);
if (unit->GetCircuitDef()->IsMobile()) {
nextCost /= 4;
}
if (prevCost > nextCost) {
SetRepairer(unit);
}
}
void CRetreatTask::Execute(CCircuitUnit* unit)
{
IUnitAction* act = static_cast<IUnitAction*>(unit->End());
if (!act->IsAny(IUnitAction::Mask::MOVE | IUnitAction::Mask::FIGHT)) {
return;
}
ITravelAction* travelAction = static_cast<ITravelAction*>(act);
CCircuitAI* circuit = manager->GetCircuit();
int frame = circuit->GetLastFrame();
CPathFinder* pathfinder = circuit->GetPathfinder();
AIFloat3 startPos = unit->GetPos(frame);
AIFloat3 endPos;
float range;
if (repairer != nullptr) {
endPos = repairer->GetPos(frame);
range = pathfinder->GetSquareSize();
} else {
CFactoryManager* factoryManager = circuit->GetFactoryManager();
endPos = factoryManager->GetClosestHaven(unit);
if (endPos == -RgtVector) {
endPos = circuit->GetSetupManager()->GetBasePos();
}
range = factoryManager->GetAssistDef()->GetBuildDistance() * 0.6f + pathfinder->GetSquareSize();
}
std::shared_ptr<F3Vec> pPath = std::make_shared<F3Vec>();
pathfinder->SetMapData(unit, circuit->GetThreatMap(), frame);
pathfinder->MakePath(*pPath, startPos, endPos, range);
if (pPath->empty()) {
pPath->push_back(endPos);
}
travelAction->SetPath(pPath);
unit->Update(circuit);
}
void IBuilderTask::Execute(CCircuitUnit* unit)
{
Unit* u = unit->GetUnit();
u->ExecuteCustomCommand(CMD_PRIORITY, {static_cast<float>(priority)});
CCircuitAI* circuit = manager->GetCircuit();
if (target != nullptr) {
Unit* tu = target->GetUnit();
u->Build(target->GetCircuitDef()->GetUnitDef(), tu->GetPos(), tu->GetBuildingFacing(), UNIT_COMMAND_OPTION_INTERNAL_ORDER, circuit->GetLastFrame() + FRAMES_PER_SEC * 60);
return;
}
CTerrainManager* terrainManager = circuit->GetTerrainManager();
UnitDef* buildUDef = buildDef->GetUnitDef();
if (buildPos != -RgtVector) {
if (circuit->GetMap()->IsPossibleToBuildAt(buildUDef, buildPos, facing)) {
u->Build(buildUDef, buildPos, facing, UNIT_COMMAND_OPTION_INTERNAL_ORDER, circuit->GetLastFrame() + FRAMES_PER_SEC * 60);
return;
} else {
terrainManager->RemoveBlocker(buildDef, buildPos, facing);
// FIXME: If enemy blocked position then reset will have no effect
// terrain->ResetBuildFrame();
}
}
circuit->GetThreatMap()->SetThreatType(unit);
// FIXME: Replace const 999.0f with build time?
if (circuit->IsAllyAware() && (cost > 999.0f)) {
// circuit->UpdateFriendlyUnits();
auto friendlies = std::move(circuit->GetCallback()->GetFriendlyUnitsIn(position, cost));
for (Unit* au : friendlies) {
CCircuitUnit* alu = circuit->GetFriendlyUnit(au);
if (alu == nullptr) {
continue;
}
if ((*alu->GetCircuitDef() == *buildDef) && au->IsBeingBuilt()) {
const AIFloat3& pos = au->GetPos();
if (terrainManager->CanBuildAt(unit, pos)) {
u->Build(buildUDef, pos, au->GetBuildingFacing(), UNIT_COMMAND_OPTION_INTERNAL_ORDER, circuit->GetLastFrame() + FRAMES_PER_SEC * 60);
utils::free_clear(friendlies);
return;
}
}
}
utils::free_clear(friendlies);
}
// Alter/randomize position
AIFloat3 pos;
if (isShake) {
AIFloat3 offset((float)rand() / RAND_MAX - 0.5f, 0.0f, (float)rand() / RAND_MAX - 0.5f);
pos = position + offset * SQUARE_SIZE * 16;
} else {
pos = position;
}
const float searchRadius = 200.0f * SQUARE_SIZE;
FindBuildSite(unit, pos, searchRadius);
if (buildPos != -RgtVector) {
terrainManager->AddBlocker(buildDef, buildPos, facing);
u->Build(buildUDef, buildPos, facing, UNIT_COMMAND_OPTION_INTERNAL_ORDER, circuit->GetLastFrame() + FRAMES_PER_SEC * 60);
} else {
// TODO: Select new proper BasePos, like near metal cluster.
int terWidth = terrainManager->GetTerrainWidth();
int terHeight = terrainManager->GetTerrainHeight();
float x = terWidth / 4 + rand() % (int)(terWidth / 2 + 1);
float z = terHeight / 4 + rand() % (int)(terHeight / 2 + 1);
AIFloat3 pos(x, circuit->GetMap()->GetElevationAt(x, z), z);
circuit->GetSetupManager()->SetBasePos(pos);
// Fallback to Guard/Assist/Patrol
manager->FallbackTask(unit);
}
}