/// <summary>
/// Returns an action that moves towards an enemy as fast as possible.
/// </summary>
public static UctAction FastMoveTowardsEnemy(GameInstance state, CachedMob mob, CachedMob target)
{
var pathfinder = state.Pathfinder;
var moveTarget = pathfinder.FurthestPointToTarget(mob, target);
if (moveTarget != null && pathfinder.Distance(mob.MobInstance.Coord, moveTarget.Value) <=
mob.MobInstance.Ap)
{
return(UctAction.MoveAction(mob.MobId, moveTarget.Value));
}
else if (moveTarget == null)
{
// Intentionally doing nothing
return(UctAction.EndTurnAction());
}
else
{
Utils.Log(LogSeverity.Debug, nameof(AiRuleBasedController),
$"Move failed since target is too close, source {mob.MobInstance.Coord}, target {target.MobInstance.Coord}");
return(UctAction.EndTurnAction());
}
}
/// <summary>
/// Generates possible attack move actions.
/// </summary>
public static void GenerateAttackMoveActions(GameInstance state, CachedMob mob, List <UctAction> result)
{
var mobInfo = mob.MobInfo;
var mobInstance = mob.MobInstance;
foreach (var enemyId in state.MobManager.Mobs)
{
var target = state.CachedMob(enemyId);
if (!GameInvariants.IsTargetableNoSource(state, mob, target))
{
continue;
}
AxialCoord myCoord = mobInstance.Coord;
AxialCoord?closestCoord = null;
int? distance = null;
int? chosenAbilityId = null;
foreach (var coord in state.Map.EmptyCoords)
{
if (!state.Map.IsVisible(coord, target.MobInstance.Coord))
{
continue;
}
var possibleMoveAction = GameInvariants.CanMoveTo(state, mob, coord);
if (possibleMoveAction.Type == UctActionType.Null)
{
continue;
}
Debug.Assert(possibleMoveAction.Type == UctActionType.Move);
foreach (var abilityId in mobInfo.Abilities)
{
if (!GameInvariants.IsAbilityUsableFrom(state, mob, coord, target, abilityId))
{
continue;
}
int myDistance = state.Pathfinder.Distance(myCoord, coord);
if (!closestCoord.HasValue)
{
chosenAbilityId = abilityId;
closestCoord = coord;
distance = myDistance;
}
else if (distance.Value > myDistance)
{
chosenAbilityId = abilityId;
closestCoord = coord;
distance = myDistance;
}
}
}
if (closestCoord.HasValue)
{
if (Constants.AttackMoveEnabled)
{
var action = UctAction.AttackMoveAction(mob.MobId,
closestCoord.Value,
chosenAbilityId.Value,
target.MobId);
var after = ActionEvaluator.F(state, action.ToPureMove());
GameInvariants.AssertValidAbilityUseAction(after, action.ToPureAbilityUse());
GameInvariants.AssertValidAction(state, action);
result.Add(action);
}
else
{
var action = UctAction.MoveAction(mob.MobId, closestCoord.Value);
GameInvariants.AssertValidAction(state, action);
result.Add(action);
}
}
}
}
