public Action(List <Tile> path, ActionType actionType = ActionType.Nothing, Targetable target = null, float score = 0f)
{
this.path = path;
this.actionType = actionType;
Score = score;
if (actionType == ActionType.Rest && target != null)
{
throw new ArgumentException("A rest action cannot have a target unit");
}
this.target = target;
}
public void LinkTargetable(Targetable targetable)
{
if (targetable.GetType() == typeof(Unit))
{
LinkUnit((Unit)targetable);
}
else if (targetable.GetType() == typeof(Door))
{
LinkDoor((Door)targetable);
}
UpdateClickHint();
}
/// <summary>
/// Finds the safest place a unit could go to rest
/// </summary>
/// <param name="potentialActions">The potential actions of this unit</param>
/// <param name="playableUnit">The unit currently controlled by the AI</param>
/// <returns>The path to the safest tile to go</returns>
private List <Tile> FindFleePath(List <Action> potentialActions, Unit playableUnit, GridController grid)
{
int[,] optionMap = new int[grid.NbColumns, grid.NbLines];
for (int i = 0; i < optionMap.GetLength(0); i++)
{
for (int j = 0; j < optionMap.GetLength(1); j++)
{
optionMap[i, j] = 0;
}
}
Targetable enemy = null;
for (int i = 0; i < optionMap.GetLength(0); i++)
{
for (int j = 0; j < optionMap.GetLength(1); j++)
{
for (int k = 0; k < potentialActions.Count; k++)
{
enemy = potentialActions[k].Target;
if (enemy is Unit enemyUnit)
{
//Each tile has a score based on the added number of turns it would take each player's unit to get there
optionMap[i, j] += (int)Math.Ceiling((enemyUnit.MovementCosts[i, j] - 1) / (double)enemyUnit.Stats.MoveSpeed);
}
}
}
}
int highestScore = 0;
Vector2Int position = new Vector2Int(-1, -1);
for (int i = 0; i < optionMap.GetLength(0); i++)
{
for (int j = 0; j < optionMap.GetLength(1); j++)
{
if (optionMap[i, j] >= highestScore && playableUnit.MovementCosts[i, j] <= playableUnit.Stats.MoveSpeed)
{
highestScore = optionMap[i, j];
position.x = i;
position.y = j;
}
}
}
return(FindPathTo(playableUnit, position, grid));
}
/// <summary>
/// Calculates how the distance to a target unit influences the score of an action
/// </summary>
/// <param name="playableUnit">The unit currently controlled by the AI</param>
/// <param name="targetPath">The path to a target unit</param>
/// <returns>The score modifier caused by the target's distance</returns>
public float DistanceChoiceMod(Unit playableUnit, Targetable target, List <Tile> targetPath)
{
float scoreMod = 0f;
if (playableUnit.TargetIsInRange(target))
{
scoreMod = aiControllerValues.AdjacentTargetChoiceMod;
}
else if (targetPath.Count <= 1)
{
scoreMod += aiControllerValues.InaccessibleTargetChoiceMod;
}
else
{
double nbToursDouble = PathFinder.CalculatePathCost(targetPath, playableUnit.MovementCosts) / playableUnit.Stats.MoveSpeed;
int nbTours = (int)Math.Ceiling(nbToursDouble);
scoreMod = aiControllerValues.TurnMultiplierForDistanceChoiceMod * nbTours + aiControllerValues.TurnAdderForDistanceChoiceMod;
}
return(scoreMod);
}
public IEnumerator Attack(Targetable target, bool isCountering, float duration)
{
if (associatedUnit.IsAttacking)
{
yield break;
}
associatedUnit.IsAttacking = true;
associatedUnit.UnitAnimator?.PlayAttackAnimation();
var counter = 0f;
var startPos = associatedUnit.Transform.position;
//2f to go only halfway
var targetPos = (target.CurrentTile.WorldPosition + startPos) / 2f;
LookAt(targetPos);
duration /= 2;
while (counter < duration)
{
counter += Time.deltaTime;
associatedUnit.Transform.position = Vector3.Lerp(startPos, targetPos, counter / duration);
yield return(null);
}
var hitRate = associatedUnit.Stats.HitRate - target.CurrentTile.DefenseRate;
var damage = 0;
var critModifier = 1;
if (Random.value <= hitRate)
{
damage = associatedUnit.Stats.AttackStrength;
if (target is Unit unit)
{
associatedUnit.OnDodge.Publish(unit);
associatedUnit.UnitAnimator?.PlayBlockAnimation();
}
}
else if (target is Unit unit)
{
associatedUnit.OnHurt.Publish(unit);
associatedUnit.UnitAnimator?.PlayHurtAnimation();
}
if (target is Unit enemyUnit)
{
if (damage > 0 && !isCountering && !enemyUnit.IsImmuneToCrits &&
(associatedUnit.CanCritOnEverybody || enemyUnit.WeaponType == associatedUnit.WeaponAdvantage))
{
critModifier = Random.value <= associatedUnit.Stats.CritRate ? 2 : 1;
damage *= critModifier;
if (critModifier > 1 && associatedUnit.CameraShake != null)
{
associatedUnit.CameraShake.TriggerShake();
}
}
}
target.CurrentHealthPoints -= damage;
if (target is Unit)
{
uiController.ChangeCharacterDamageTaken(damage, !associatedUnit.IsEnemy, critModifier);
}
associatedUnit.UnitAnimator?.StopBlockAnimation();
associatedUnit.UnitAnimator?.StopHurtAnimation();
counter = 0;
while (counter < duration)
{
counter += Time.deltaTime;
associatedUnit.Transform.position = Vector3.Lerp(targetPos, startPos, counter / duration);
yield return(null);
}
associatedUnit.Transform.position = startPos;
associatedUnit.IsAttacking = false;
associatedUnit.UnitAnimator?.StopAttackAnimation();
//A unit cannot make a critical hit on a counter && cannot counter on a counter
if (!target.NoHealthLeft && !isCountering && target is Unit targetUnit)
{
yield return(targetUnit.UnitMover.Attack(associatedUnit, true, gameSettings.AttackDuration));
}
if (!isCountering)
{
associatedUnit.HasActed = true;
}
}
public void AddTarget(Targetable target)
{
targetsToDestroy.Add(target);
}