/// <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]);
}
}
}
}
/// <summary>
/// Checks the Game Time against the last time the AI attacked. If the time difference is greater
/// than the attack cooldown of the AI, then the AI is ready to attack and their Attack animation begins.
/// </summary>
/// <param name="entID">Ent identifier.</param>
protected void CheckCooldown(ulong entID)
{
CAI AI = World.GetComponent <CAI>(entID);
AI.AttackIsReady = World.GameTime - AI.LastAttackTime >= AI.Cooldown;
if (AI.AttackIsReady)
{
/// <summary>
/// Begin the Attack animation for the AI
/// </summary>
CAnimation anim = World.GetComponent <CAnimation>(entID);
SwinGame.AssignAnimation(anim.Anim, "Attack", anim.AnimScript);
}
}
public override void Process()
{
CAI AI;
CPosition pos;
CAnimation anim;
/// <summary>
/// For each Enemy AI Entity.
/// </summary>
for (int i = 0; i < Entities.Count; i++)
{
AI = World.GetComponent <CAI>(Entities[i]);
pos = World.GetComponent <CPosition>(Entities[i]);
if (!AI.IsInRange)
{
CheckRange(Entities[i], AI, pos);
/// If the AI is now in range, stop moving and begin attacking.
if (AI.IsInRange)
{
World.RemoveComponent <CVelocity>(Entities[i]);
}
}
else if (!AI.AttackIsReady)
{
CheckCooldown(Entities[i]);
}
else
{
anim = World.GetComponent <CAnimation>(Entities[i]);
/// <summary>
/// Attack will be carried out when the Attack animation has ended.
/// </summary>
if (SwinGame.AnimationEnded(anim.Anim))
{
Attack <CEnemyTeam>(Entities[i]);
///If the Entity has attacked, stand still during the cooldown period.
SwinGame.AssignAnimation(anim.Anim, "Still", anim.AnimScript);
}
}
}
}
/// <summary>
/// Represents the decision making process for Player AI. AI operates with the following procedure:
/// - If I don't have a target, get a target.
/// - If I have a target, check if I'm in range to attack.
/// - If I'm in range to attack, check if I can attack.
/// - If I'm in range to attack, attack.
/// </summary>
public override void Process()
{
CAI playerAI;
CPosition playerPos;
CAnimation playerAnim;
/// <summary>
/// Populates the dictionary of Enemy positions only once per frame.
/// Each AI uses these positions to evaluate their targets.
/// </summary>
GetEnemyPositions();
/// <summary>
/// For each Player Entity.
/// </summary>
for (int i = 0; i < Entities.Count; i++)
{
playerAI = World.GetComponent <CAI>(Entities[i]);
playerPos = World.GetComponent <CPosition>(Entities[i]);
/// <summary>
/// If target died, get a new target and stand still.
/// </summary>
if (!World.HasEntity(playerAI.TargetID))
{
playerAI.HasTarget = false;
//playerAnim = World.GetComponent<CAnimation>(Entities[i]);
//SwinGame.AssignAnimation(playerAnim.Anim, "Still", playerAnim.AnimScript);
}
if (!playerAI.HasTarget)
{
GetClosestTarget(playerAI, playerPos);
}
else if (!playerAI.IsInRange)
{
CheckRange(Entities[i], playerAI, playerPos);
}
else if (!playerAI.AttackIsReady)
{
CheckCooldown(Entities[i]);
}
else
{
/// <summary>
/// If ready to attack, start the attack animation. The attack will be carried out
/// when the attack animation has finished.
/// </summary>
playerAnim = World.GetComponent <CAnimation>(Entities[i]);
if (SwinGame.AnimationEnded(playerAnim.Anim)) //Attack at end of Attack animation
{
Attack <CPlayerTeam>(Entities[i]);
//If the Entity has attacked, stand still during the cooldown period.
SwinGame.AssignAnimation(playerAnim.Anim, "Still", playerAnim.AnimScript);
}
}
}
}