/// <summary>
/// Loops through each Poisoned Entity and applies poison damage. If the poison has expired, then
/// the Poison Component is removed from the Entity.
/// </summary>
public override void Process()
{
/// <summary>
/// The System where Attacks are registered.
/// </summary>
DamageSystem damageSystem = World.GetSystem <DamageSystem>();
if (ReadyToApplyPoison(_lastTick, _tickInterval))
{
_lastTick = World.GameTime;
CPoison poison;
for (int i = 0; i < Entities.Count; i++)
{
poison = World.GetComponent <CPoison>(Entities[i]);
if (!Utils.DurationReached(poison.TimeApplied, poison.Duration))
{
damageSystem.RegisterAttack(Entities[i], poison.Strength);
}
else
{
World.RemoveComponent <CPoison>(Entities[i]);
}
}
}
}
/// <summary>
/// Evaluates the state of each Explosion Man. Two key events occur with Explosion Men:
/// -When the Spawn Animation finishes, the explosion is created.
/// -When the Explosion Animation finishes, the Entity is removed.
/// This System checks the state and animation of each Explosion Man.
/// </summary>
public override void Process()
{
CExplosionMan explosion;
CAnimation anim;
CPosition pos;
for (int i = Entities.Count - 1; i >= 0; i--)
{
anim = World.GetComponent <CAnimation>(Entities[i]);
/// <summary>
/// If one of the two key events are happening.
/// </summary>
if (SwinGame.AnimationEnded(anim.Anim))
{
explosion = World.GetComponent <CExplosionMan>(Entities[i]);
/// <summary>
/// If not ready to explode, the Spawn animation has just finished.
/// Therefore, create the explosion.
/// </summary>
if (!explosion.ReadyToExplode)
{
explosion.ReadyToExplode = true;
pos = World.GetComponent <CPosition>(Entities[i]);
/// <summary>
/// Update size details as the Entity is now an Explosion.
/// </summary>
pos.Width = EntityFactory.EXPLOSION_SIZE;
pos.Height = EntityFactory.EXPLOSION_SIZE;
/// <summary>
/// Adjust position details so explosion is in centre of the cell.
/// </summary>
CollisionCheckSystem collisions = World.GetSystem <CollisionCheckSystem>();
Point2D cellPos = collisions.CentreOfCell(explosion.TargetCell);
pos.X = cellPos.X - (pos.Width / 2);
pos.Y = cellPos.Y - (pos.Height / 2);
/// <summary>
/// Create explosion animation.
/// </summary>
anim.Img = SwinGame.BitmapNamed("Explosion");
SwinGame.AssignAnimation(anim.Anim, "Explode", anim.AnimScript);
/// <summary>
/// Add new components to the Entity.
/// </summary>
World.AddComponent(Entities[i], new CDamagesOnImpact(false));
World.AddComponent(Entities[i], new CDamage(EntityFactory.EXPLOSION_DAMAGE));
World.AddComponent(Entities[i], new CCollidable());
}
else //If ready to explode, the Explode animation has just finished. Therefore, remove the Entity.
{
World.RemoveEntity(Entities[i]);
}
}
}
}
public override void Process()
{
/// <summary>
/// Mouse Position is evaluated once per frame and passed to relevant methods.
/// </summary>
Point2D pt = SwinGame.MousePosition();
PlayerSystem playerSystem = World.GetSystem <PlayerSystem>();
if (SwinGame.KeyDown(KeyCode.AKey))
{
playerSystem.BuyArcher();
}
if (SwinGame.KeyTyped(KeyCode.EKey))
{
playerSystem.BuyExplosionMan();
}
if (SwinGame.MouseClicked(MouseButton.LeftButton))
{
playerSystem.CastPoisonZone(pt);
}
if (SwinGame.MouseClicked(MouseButton.RightButton))
{
playerSystem.CastFreezingBullet(pt);
}
}
/// <summary>
/// Checks if the Entity is within the System. If it is, its loot component is extracted
/// and its contents sent to the fetched Player Gold System.
/// </summary>
/// <param name="entID">The Entity to remove.</param>
public override void Remove(ulong entID)
{
if (HasEntity(entID))
{
CLoot lootToGive = World.GetComponent <CLoot>(entID);
PlayerSystem playerSystem = World.GetSystem <PlayerSystem>();
playerSystem.GiveLoot(lootToGive);
}
base.Remove(entID);
}
/// <summary>
/// Performs an Attack for the specified Entity. The Entity's
/// attack Type is evaluated and the appropriate attack is performed.
/// </summary>
/// <param name="entID">The Attacking Entity.</param>
/// <typeparam name="T">The Team the Entity belongs to.</typeparam>
protected void Attack <T>(ulong entID) where T : CTeam
{
CAI AI = World.GetComponent <CAI>(entID);
CDamage damage;
CPosition pos;
CPosition targetPos;
/// <summary>
/// The AI has just attacked, so its cooldown is started.
/// </summary>
AI.LastAttackTime = World.GameTime;
AI.AttackIsReady = false;
/// <summary>
/// If the Attack Type is Melee, register an attack with the Damage System.
/// If the Attack Type is Gun, create an Arrow Entity to travel towards the Target.
/// </summary>
switch (AI.AttackType)
{
case AttackType.Melee:
{
/// <summary>
/// The System where Attacks are registered.
/// </summary>
DamageSystem damageSystem = World.GetSystem <DamageSystem>();
damage = World.GetComponent <CDamage>(entID);
damageSystem.RegisterAttack(AI.TargetID, damage.Damage);
break;
}
case AttackType.Bow:
{
pos = World.GetComponent <CPosition>(entID);
CBow bow = World.GetComponent <CBow>(entID);
targetPos = World.GetComponent <CPosition>(AI.TargetID);
EntityFactory.CreateArrow <T>(pos.Centre.X, pos.Centre.Y, bow, targetPos);
break;
}
}
}
/// <summary>
/// Checks the collisions of each Entity which deals damage on impact. If it has collided with something containing a Health Component,
/// an Attack is registered with the Damage System.
/// </summary>
public override void Process()
{
/// <summary>
/// The System where Attacks are registered.
/// </summary>
DamageSystem damageSystem = World.GetSystem <DamageSystem>();
for (int i = Entities.Count - 1; i >= 0; i--)
{
CDamage damage;
CCollision collision;
CDamagesOnImpact dmgOnImp;
collision = World.GetComponent <CCollision>(Entities[i]);
/// <summary>
/// Apply damage to the first Entity the Entity has collided with that still exists in
/// the World and also has a Health Component. If none are found, the Arrow remains live.
/// </summary>
for (int j = 0; j < collision.Count; j++)
{
if (World.HasEntity(collision[j]))
{
if (World.EntityHasComponent(collision[j], typeof(CHealth)))
{
damage = World.GetComponent <CDamage>(Entities[i]);
damageSystem.RegisterAttack(collision[j], damage.Damage);
}
}
}
/// <summary>
/// If the Entity is set to die after impact, remove it from the World.
/// </summary>
dmgOnImp = World.GetComponent <CDamagesOnImpact>(Entities[i]);
if (dmgOnImp.DiesAfterImpact)
{
World.RemoveEntity(Entities[i]);
}
}
}
