public static bool AbilityCanTarget(QueuedAbility queuedAbility)
{
//ability can target if the target is alive, or the target is dead but we have appropriate retarget behavior
if (queuedAbility.Target.IsAlive == false && queuedAbility.Ability.DeadTargetBehavior == DeadTargetBehavior.AbandonAbilityExecution)
{
return false;
}
return true;
}
protected void HandleQueuedAbilityActivation(QueuedAbility queuedAbility)
{
//TODO: When a battle entity dies, reset their HasQueuedAbility flag.
//if the source has died since this ability was queued, just bail. We can't do anything else
if (queuedAbility.Source.IsAlive == false)
{
return;
}
//we will be trying to execute the ability
//start by setting the executing ability. This will display the name of the ability, as well as signal that we're busy processing this ability
BattleModel.Instance.BattlefieldData.ExecutingAbility = queuedAbility.Ability;
//first, we need to queue up the battle entity attack animation, followed by the logic to execute the ability steps
var abilityExecutionSteps = new List<DelayedAction>
{
//start with battle entity attack animation
DelayedAction.New(() =>
{
if (queuedAbility.Source is PartyMemberInBattle)
{
//TODO: Party member step forward?
}
else
{
(queuedAbility.Source as EnemyInBattle).SpriteSheet.AttackFlash();
}
}, 0) //no delay here, the step animations will handle their individual delay
};
//next, we check to see if our target is still valid. If it's not, we'll skip the actual execution of the ability
if (BattleUtility.AbilityCanTarget(queuedAbility))
{
//we have a source that's alive, and can actually get targets. We need to check the costs of the ability
//like does the source have enough energy, or does the item exist in inventory
if (queuedAbility.Ability.ExecuteCost(queuedAbility.Source.BattleEntity))
{
//we met all of our ability costs, we can execute the steps
foreach (var step in queuedAbility.Ability.GetAbilitySteps(queuedAbility.Source.BattleEntity))
{
var allTargets = new BattleEntityInBattle[0];
abilityExecutionSteps.Add(DelayedAction.New(() =>
{
//retarget the primary target, if necessary
queuedAbility.Target = BattleUtility.GetPrimaryTargetForAbilityStep(queuedAbility.Source, queuedAbility.Target, queuedAbility.Ability.DeadTargetBehavior);
//get secondary targets based on new primary target
allTargets = BattleUtility.GetAllTargetsForAbilityStep(queuedAbility.Source, queuedAbility.Target, queuedAbility.Ability.Target, step);
}, 1));
//handle ability animations (in parallel)
abilityExecutionSteps.Add(DelayedAction.New(
() => BattleUtility.HandleAbilityStepAnimations(queuedAbility.Source, allTargets, step.Animation), step.GetTotalFrames(GameState.InBattle)));
//apply effects to targets, long enough to display damage/battle status
abilityExecutionSteps.Add(DelayedAction.New(
() => step.ApplyEffectToTargets(queuedAbility.Source.BattleEntity, allTargets.Select(x => x.BattleEntity).ToArray()), Constants.BATTLE_TIMING_DISPLAY_DAMAGE_TICKS));
}
}
else
{
//TODO: Do we want to somehow signal that we couldn't execute a prerequesite? (no energy, or no item in inventory, etc...)
//TODO: BATTLE_TIMING_ABILITY_FAILED_COST_WAIT_TICKS may be reudced (or completely eliminted) when I get the step forward / step back animations taken care of.
abilityExecutionSteps.Add(DelayedAction.New(() => { }, Constants.BATTLE_TIMING_ABILITY_FAILED_COST_WAIT_TICKS)); //just delay for a few seconds
}
}
//TODO: We need to handle the situation of the party member stepping back as well
//finally, queue up finish queued ability logic
abilityExecutionSteps.Add(DelayedAction.New(
() => Bus.Broadcast(BattleQueuedAbilityFinishedMessage.New(queuedAbility)), 0));
//TODO: Also, do we want actions for things such as checking to see if the battle is won/lost, if things have died, etc...
TimerUtility.ExecuteChainOfActions(abilityExecutionSteps);
}
protected BattleQueuedAbilityFinishedMessage(QueuedAbility queuedAbility)
{
QueuedAbility = queuedAbility;
}
public static BattleQueuedAbilityFinishedMessage New(QueuedAbility queuedAbility)
{
return new BattleQueuedAbilityFinishedMessage(queuedAbility);
}