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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 <list>
#include "AAIAirForceManager.h"
#include "AAIMap.h"
#include "AAI.h"
#include "AAIBuildTable.h"
#include "AAIUnitTable.h"
#include "AAIConfig.h"
#include "AAIGroup.h"
#include "AAISector.h"
#include "LegacyCpp/UnitDef.h"
using namespace springLegacyAI;
AAIAirForceManager::AAIAirForceManager(AAI *ai)
{
this->ai = ai;
num_of_targets = 0;
targets.resize(cfg->MAX_AIR_TARGETS);
for(int i = 0; i < cfg->MAX_AIR_TARGETS; ++i)
targets[i].unit_id = -1;
}
AAIAirForceManager::~AAIAirForceManager(void)
{
}
void AAIAirForceManager::CheckTarget(const UnitId& unitId, const AAIUnitCategory& category, float health)
{
// do not attack own units
if(ai->GetAICallback()->GetUnitTeam(unitId.id) != ai->GetMyTeamId())
{
float3 pos = ai->GetAICallback()->GetUnitPos(unitId.id);
// calculate in which sector unit is located
AAISector* sector = ai->Getmap()->GetSectorOfPos(pos);
// check if unit is within the map
if(sector)
{
// check for anti air defences if low on units
if( (sector->GetLostAirUnits() > 2.5f) && (ai->GetUnitGroupsList(EUnitCategory::AIR_COMBAT).size() < 5) )
return;
AAIGroup *group(nullptr);
int max_groups;
if(health > 8000)
max_groups = 3;
else if(health > 4000)
max_groups = 2;
else
max_groups = 1;
for(int i = 0; i < max_groups; ++i)
{
if(category.IsAirCombat() == true)
{
group = GetAirGroup(100.0, EUnitType::ANTI_AIR);
if(group)
group->DefendAirSpace(&pos);
}
else if(category.IsBuilding() == true)
{
group = GetAirGroup(100.0, EUnitType::ANTI_STATIC);
if(group)
group->BombTarget(unitId.id, &pos);
}
else
{
group = GetAirGroup(100.0, EUnitType::ANTI_SURFACE);
if(group)
group->AirRaidUnit(unitId.id);
}
}
}
}
}
void AAIAirForceManager::CheckBombTarget(int unit_id, int def_id)
{
// dont continue if target list already full
if(num_of_targets >= cfg->MAX_AIR_TARGETS)
return;
// do not add own units or units that ar already on target list
if( (ai->GetAICallback()->GetUnitTeam(unit_id) != ai->GetMyTeamId()) && !IsTarget(unit_id))
{
const float3 pos = ai->GetAICallback()->GetUnitPos(unit_id);
// check if unit is within the map
if( ai->Getmap()->IsPositionWithinMap(pos) )
{
AddTarget(unit_id, def_id);
}
}
}
void AAIAirForceManager::AddTarget(int unit_id, int def_id)
{
for(int i = 0; i < cfg->MAX_AIR_TARGETS; ++i)
{
if(targets[i].unit_id == -1)
{
ai->LogConsole("Target added...");
targets[i].pos = ai->GetAICallback()->GetUnitPos(unit_id);
targets[i].def_id = def_id;
targets[i].cost = ai->s_buildTree.GetTotalCost(UnitDefId(def_id));
targets[i].health = ai->GetAICallback()->GetUnitHealth(unit_id);
ai->Getut()->units[unit_id].status = BOMB_TARGET;
++num_of_targets;
return;
}
}
// could not add target, randomly overwrite one of the existing targets
/*i = rand()%cfg->MAX_AIR_TARGETS;
targets[i].pos.x = pos.x;
targets[i].pos.z = pos.z;
targets[i].def_id = def_id;
targets[i].cost = cost;
targets[i].health = health;
targets[i].category = category;*/
}
void AAIAirForceManager::RemoveTarget(int unit_id)
{
for(int i = 0; i < cfg->MAX_AIR_TARGETS; ++i)
{
if(targets[i].unit_id == unit_id)
{
ai->LogConsole("Target removed...");
targets[i].unit_id = -1;
ai->Getut()->units[unit_id].status = ENEMY_UNIT;
--num_of_targets;
return;
}
}
}
void AAIAirForceManager::BombBestUnit(float cost, float danger)
{
float highestRating(0.0f);
int selectedTargetId(-1);
for(int i = 0; i < cfg->MAX_AIR_TARGETS; ++i)
{
if(targets[i].unit_id != -1)
{
AAISector* sector = ai->Getmap()->GetSectorOfPos(targets[i].pos);
if(sector)
{
const float healthRating = ai->Getbt()->GetUnitDef(targets[i].def_id).health / targets[i].health; // favor already damaged targets
//! @todo Check this formula
const float rating = pow(targets[i].cost, cost) / (1.0f + sector->GetEnemyCombatPower(ETargetType::AIR) * danger) * healthRating;
if(rating > highestRating)
{
highestRating = rating;
selectedTargetId = i;
}
}
}
}
if(selectedTargetId != -1)
{
AAIGroup *group = GetAirGroup(100.0, EUnitType::ANTI_STATIC);
if(group)
{
//ai->LogConsole("Bombing...");
group->BombTarget(targets[selectedTargetId].unit_id, &targets[selectedTargetId].pos);
targets[selectedTargetId].unit_id = -1;
--num_of_targets;
}
}
}
AAIGroup* AAIAirForceManager::GetAirGroup(float importance, EUnitType groupType) const
{
for(auto group = ai->GetUnitGroupsList(EUnitCategory::AIR_COMBAT).begin(); group != ai->GetUnitGroupsList(EUnitCategory::AIR_COMBAT).end(); ++group)
{
if( ((*group)->task_importance < importance) && (*group)->GetUnitTypeOfGroup().IsUnitTypeSet(groupType) )
return *group;
}
return nullptr;
}
bool AAIAirForceManager::IsTarget(int unit_id)
{
for(int i = 0; i < cfg->MAX_AIR_TARGETS; ++i)
{
if(targets[i].unit_id == unit_id)
return true;
}
return false;
}
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