///// <summary>
///// Find and set the best leader candidate (most health/armor and not Tank, SCV or Medic).
///// ONLY WORKS FOR TERRAN.
///// </summary>
///// <returns></returns>
//public static UnitAgent FindBestLeaderCandidate(ref List<UnitAgent> squad)
//{
// int bestHealth = 0;
// int currentHealth = -1;
// UnitAgent bestUnitAgent = null;
// if (squad != null && squad.Count > 0)
// {
// bestUnitAgent = squad[0];
// foreach (UnitAgent unitagent in squad)
// {
// if (IsAGoodLeaderCandidate(unitagent.MyUnit))
// {
// currentHealth = unitagent.MyUnit.HitPoints + unitagent.MyUnit.Shields;
// if (currentHealth > bestHealth)
// {
// bestHealth = currentHealth;
// bestUnitAgent = unitagent;
// }
// }
// }
// bestUnitAgent.LeadingStatus = UnitAgent.LeadingStatusEnum.GroupLeader;
// }
// else
// {
// Console.WriteLine("Parameter squad null in FindBestLeaderCandidate in SCMath.");
// // Logger.Logger.AddAndPrint("Parameter squad null in FindBestLeaderCandidate in MyMath.");
// }
// return bestUnitAgent;
//}
/// <summary>
/// Find the enemy unit that has lost most hitpoints and shield in percentage
/// in a user specified radius from the specified center position.
/// </summary>
/// <param name="position">center position</param>
/// <param name="radius">the radius that should be scanned for injured or damaged enemy units.</param>
/// <returns></returns>
public static Unit GetEnemyUnitWithLowestHitpoints(Position position, int radius)//radius = 5
{
Unit mostInjuredEnemyUnit = null;
double lowestHealth = 1;
if (SWIG.BWAPI.bwapi.Broodwar.enemy().getUnits() != null)//Game.PlayerEnemy.GetUnits() != null)
{
foreach (Unit enemyUnit in bwapi.Broodwar.enemy().getUnits())
{
if (enemyUnit.isVisible() && enemyUnit.getPosition().getDistance(position) < radius * TileSize)//Only look at possible injured units in a radius of 5 tiles.
{
double currentEnemyUnitHealth = SCMath.UnitHitpointsLeftInPercentage(enemyUnit);
if (currentEnemyUnitHealth < lowestHealth)
{
lowestHealth = currentEnemyUnitHealth;
mostInjuredEnemyUnit = enemyUnit;
}
}
}
}
else
{
//Logger.Logger.AddAndPrint("ERROR in GetEnemyUnitWithLowestHitpoints, the enemyUnits list is NULL");
//Util.Logger.Instance.Log("ERROR in GetEnemyUnitWithLowestHitpoints, the enemyUnits list is NULL"););
}
return(mostInjuredEnemyUnit);
}
/// <summary>
/// Calculates the magnitude of the specified field relative to the center of the map.
/// </summary>
/// <param name="field"></param>
/// <param name="force"></param>
/// <param name="forceStep"></param>
/// <param name="rangePercentage"></param>
/// <returns></returns>
public double PFMapCenterAttraction(Position field, double force, double forceStep, int rangePercentage)
{
double distance = field.getDistance(SCMath.GetMapCenterPosition());
return(distance <= SCMath.GetPercentageOfMaxDistancePixels(rangePercentage)
? force//0
: force - forceStep * distance);
}
/// <summary>
/// Calculate the potential value of the field that the current military unit can go to in the next frame, while the unit's weapon has it's cooldown period.
/// Weapon cooldown happens each time the weapon is reloading.
/// Some weapons are very effective, but recharges very slowly. It may therefore be a good tactic to flee when the weapon is in cool down, and thereby avoid being hit.
/// </summary>
/// <param name="field"></param>
/// <param name="enemy"></param>
/// <param name="distanceToEnemy"></param>
/// <param name="force"></param>
/// <param name="forceStep"></param>
/// <param name="range"></param>
/// <returns></returns>
public double PFWeaponCoolDownRepulsion(Position field, double distanceToEnemy, Unit enemy, double force, double forceStep, int range)
{
if (enemy.isVisible() && IsInEnemyUnitsRange(field, range))
{
return(SCMath.CalculateRepulsiveMagnitude(force, forceStep, distanceToEnemy, true));
}
return(0);
}
/// <summary>
/// Calculates the magnitude of the specified position on the map relative to the centroid of the squad
/// (being close to the other units in the squad will give the best magnitude/attraction).
/// </summary>
/// <param name="squad"></param>
/// <param name="possibleNextPosition"></param>
/// <param name="force"></param>
/// <param name="forceStep"></param>
/// <param name="rangePercentage">How big the Range to the centroid of all the Units positions in the Squad/Group</param>
/// <returns>The magnitude of squad attraction. 0 if a unit is inside the specified range and gives a negative linear drop-off the further away the unit is from the group.</returns>
public double PFSquadAttraction(List <UnitAgent> squad, Position possibleNextPosition, double force, double forceStep, int rangePercentage)
{
if (squad != null && squad.Count > 0)
{
double distance = possibleNextPosition.getDistance(CombatControl.CalculateCentroidPosition(squad.Select(ua => ua.SCUnit)));
return(distance <= SCMath.GetPercentageOfMaxDistancePixels(rangePercentage)
? force//0
: force - forceStep * distance);
}
log.Error("squad unit list is null or has zero elements in PFSquadAttraction");
return(0);
}
public void FindAndSetOptimalGoalForUnitAgent(UnitAgent unitAgent)
{
if (unitAgent == null)
{
log.Error("unitAgent is null in method SetGoalPositionForUnitAgentToClosestEnemy");
throw new ArgumentNullException("unitAgent");
}
Unit enemyUnitToAttack = SCMath.GetClosestEnemyUnit(unitAgent.SCUnit);//unitAgent.GetClosestEnemyUnit();
if (enemyUnitToAttack != null)
{
unitAgent.GoalUnitToAttack = enemyUnitToAttack;
unitAgent.GoalPosition = enemyUnitToAttack.getPosition();
}
}
/// <summary>
/// Calculate the potential of the specified field/position.
/// </summary>
/// <param name="squad"></param>
/// <param name="enemy"></param>
/// <param name="field"></param>
/// <returns></returns>
public double CalculatePotentialField(List <UnitAgent> squad, Unit enemy, Position field)
{
double pVal = 0;
//DO NOT UPDATE WITH EVOLUTIONARY ALGORITHM
const double forceNeutralUnitsRepulsion = 200; // 0 - 1000 //REMEMBER TO SET TO A POSITIVE NUMBER.
const double forceStepNeutralUnitsRepulsion = 1.2; // 0 - 10
int rangeNeutralUnitsRepulsion = 8; //0-512
// ///////////////////////////////////////////
double distance = enemy.getDistance(field);
if (SCUnit.getGroundWeaponCooldown() == 0) //If the weapon is ready to fire, PFMaxShootingDistanceAttraction is activated
{
pVal += PFMaxShootingDistanceAttraction(distance, enemy, OptimizedProperties.ForceMSD, OptimizedProperties.ForceStepMSD); //, MSDDiffDivValue);
}
else if (SCMath.GetRange(SCUnit) > 1) //Else If Weapon is ready to fire and AttackRange is bigger than 1, FLEE/RETREAT until weapon is ready to fire again.
{
pVal += PFWeaponCoolDownRepulsion(field, distance, enemy, OptimizedProperties.ForceWeaponCoolDownRepulsion, OptimizedProperties.ForceStepWeaponCoolDownRepulsion, OptimizedProperties.RangeWeaponCooldownRepulsion);
}
//Squad attraction
if (squad.Count > 2)
{
pVal += PFSquadAttraction(squad, field, OptimizedProperties.ForceSquadAttraction, OptimizedProperties.ForceStepSquadAttraction, OptimizedProperties.RangePercentageSquadAttraction);
}
//Center of the map attraction (NEGATES the MSD)
pVal += PFMapCenterAttraction(field, OptimizedProperties.ForceMapCenterAttraction, OptimizedProperties.ForceStepMapCenterAttraction,
OptimizedProperties.RangePecentageMapCenterAttraction);
//Map edge repulsion (NEGATES the MSD)
pVal += SCMath.CalculateMapEdgeRepulsion(field, OptimizedProperties.ForceMapEdgeRepulsion, OptimizedProperties.ForceStepMapEdgeRepulsion, OptimizedProperties.RangeMapEdgeRepulsion);
//Own Unit Repulsion
pVal += PFOwnUnitsRepulsion(squad, field, OptimizedProperties.ForceOwnUnitsRepulsion,
OptimizedProperties.ForceStepOwnUnitsRepulsion, OptimizedProperties.RangeOwnUnitsRepulsion);
//Enemy Unit Repulsion
pVal += PFEnemyUnitsRepulsion(field, OptimizedProperties.ForceEnemyUnitsRepulsion,
OptimizedProperties.ForceStepEnemyUnitsRepulsion); //, rangeEnemyUnitsRepulsion);
//Neutral Unit Repulsion
pVal += PFNeutralUnitsRepulsion(field, forceNeutralUnitsRepulsion,
forceStepNeutralUnitsRepulsion, rangeNeutralUnitsRepulsion);
return(pVal);
}
public double PFNeutralUnitsRepulsion(Position field, double force, double forceStep, int range)
{
double pfValue = 0;
if (SWIG.BWAPI.bwapi.Broodwar.getStaticNeutralUnits() != null && SWIG.BWAPI.bwapi.Broodwar.getStaticNeutralUnits().Count > 0)
{
foreach (Unit neutralUnit in bwapi.Broodwar.getStaticNeutralUnits())
{
pfValue = SCMath.CalculatePFNeutralUnitRepulsion(neutralUnit, field, force, forceStep, range);
if (pfValue < 0)
{
return(pfValue);
}
}
}
return(0);
}
/// <summary>
/// Returns true if the specified position is inside one of the enemy units range + the extraRange.
/// </summary>
/// <param name="field"></param>
/// <param name="extraRange"></param>
/// <returns></returns>
public Boolean IsInEnemyUnitsRange(Position field, int extraRange)
{
if (SWIG.BWAPI.bwapi.Broodwar.enemy().getUnits() != null && SWIG.BWAPI.bwapi.Broodwar.enemy().getUnits().Count > 0)
{
foreach (Unit enemyUnit in bwapi.Broodwar.enemy().getUnits())
{
if (CanBeAttacked(SCUnit, enemyUnit))
{
if (enemyUnit.getDistance(field) <= SCMath.GetRange(enemyUnit) + extraRange)
{
return(true);
}
}
}
// return Game.PlayerEnemy.GetUnits().Where(enemyUnit => CanBeAttacked(MyUnit, enemyUnit)).Any(enemyUnit => enemyUnit.getDistance(field) <= enemyUnit.getType().WeaponGround.AttackRangeMax);
}
return(false);
}
public Position CalculateNewSubGoalPosition(List <UnitAgent> squad, Unit closestEnemyUnit)
{
int currentX = SCUnit.getPosition().xConst();
int currentY = SCUnit.getPosition().yConst();
List <Position> surroundingPositions = SCMath.GetPossibleSurroundingPositionsRotation(currentX, currentY, 48, 35);
double currentPotentialFieldValue = -1000;
double bestPotentialFieldValue = -1000;
Position bestPosition = SCUnit.getPosition();
foreach (Position possibleNextPosition in surroundingPositions)
{
currentPotentialFieldValue = CalculatePotentialField(squad, closestEnemyUnit, possibleNextPosition);
if (currentPotentialFieldValue > bestPotentialFieldValue)
{
bestPotentialFieldValue = currentPotentialFieldValue;
bestPosition = possibleNextPosition;
}
}
return(bestPosition);
}
public double PFOwnUnitsRepulsion(List <UnitAgent> squad, Position field, double force, double forceStep, int range)
{
double pfValue = 0;
if (SWIG.BWAPI.bwapi.Broodwar.self().getUnits() != null && SWIG.BWAPI.bwapi.Broodwar.self().getUnits().Count > 0)
{
foreach (UnitAgent myOtherUnit in squad)
{
pfValue = SCMath.CalculatePFOwnUnitRepulsion(SCUnit, field, myOtherUnit.SCUnit, force, forceStep, range);
if (pfValue < 0)
{
return(pfValue);
}
}
}
else
{
log.Error("self unit list is null in PFOwnUnitsRepulsion");
}
return(0);
}
public double PFEnemyUnitsRepulsion(Position field, double force, double forceStep)
{
double pfValue = 0;
//foreach (Unit myOtherUnit in unitsInMyArea)
if (SWIG.BWAPI.bwapi.Broodwar.enemy().getUnits() != null && SWIG.BWAPI.bwapi.Broodwar.enemy().getUnits().Count > 0)
{
foreach (Unit enemyUnit in bwapi.Broodwar.enemy().getUnits())
{
pfValue = SCMath.CalculatePFEnemyUnitRepulsion(SCUnit, field, enemyUnit, force, forceStep);
if (pfValue < 0)
{
return(pfValue);
}
}
}
else
{
log.Error("Enemy unit list is null in PFEnemyUnitsRepulsion");
}
return(0);
}
/// <summary>
/// Calculates the maximum distance from corner to corner in the current map (In tiles).
/// </summary>
/// <returns></returns>
private static int CalculateMaxDistance()
{
_maxDistance = SCMath.PythagorasInt(bwapi.Broodwar.mapHeight(), bwapi.Broodwar.mapWidth());//Max Potential Field Value
return(_maxDistance);
}
