protected override async Task Handle(UseSkillEvent e, CancellationToken cancellation)
{
if (!(e.Sender is IBattleEntity entity))
{
return;
}
IBattleEntity target = e.Target;
SkillDto skill = e.Skill;
if (!(entity is IPlayerEntity player))
{
player = null;
}
if (e.Skill.MpCost > entity.Mp) //TODO: others check
{
if (!(player is null))
{
await player.SendPacketAsync(target.GenerateTargetCancelPacket(CancelPacketType.InCombatMode));
}
return;
}
List <IBattleEntity> targets = new List <IBattleEntity>();
switch ((SkillTargetType)skill.TargetType)
{
case SkillTargetType.SingleHit:
case SkillTargetType.SingleBuff when skill.HitType == 0:
// if too much distance, send cancel packet
if (entity.GetDistance(target) > skill.Range + target.BasicArea + 1)
{
if (!(player is null))
{
await player.SendPacketAsync(target.GenerateTargetCancelPacket(CancelPacketType.InCombatMode));
}
return;
}
if (entity.Type == VisualType.Character && target.Type == VisualType.Character && !entity.CurrentMap.IsPvpEnabled && skill.HitType != 1)
{
if (!(player is null))
{
await player.SendPacketAsync(target.GenerateTargetCancelPacket(CancelPacketType.InCombatMode));
}
return;
}
targets.Add(target);
break;
case SkillTargetType.AOE when skill.HitType == 1: // Target Hit
if (skill.TargetRange == 0)
{
targets.Add(target);
goto default;
}
targets.Add(target);
break;
case SkillTargetType.AOE when skill.HitType != 1: // Buff
switch (skill.HitType)
{
case 0:
case 4: // Apply Buff on himself
targets.Add(target);
break;
case 2: // Apply Buff in range
if (skill.TargetRange == 0)
{
if (!(player is null))
{
await player.SendPacketAsync(target.GenerateTargetCancelPacket(CancelPacketType.InCombatMode));
}
return;
}
// apply buff on each entities of type
break;
}
break;
default:
if (!(player is null))
{
await player.SendPacketAsync(target.GenerateTargetCancelPacket(CancelPacketType.InCombatMode));
}
targets.Add(target);
return;
}
await entity.CurrentMap.BroadcastAsync(entity.GenerateCtPacket(e.Target, e.Skill));
await entity.DecreaseMp(e.Skill.MpCost);
//TODO: Skill Cooldown
foreach (IBattleEntity t in targets)
{
HitRequest hitRequest = await _hitRequestFactory.CreateHitRequest(entity, t, e.Skill);
await entity.EmitEventAsync(new FillHitRequestEvent
{
HitRequest = hitRequest,
});
await entity.EmitEventAsync(new ProcessHitRequestEvent
{
HitRequest = hitRequest
});
}
}