// Looks for a decoration of given role starting from given decorator and then through its decorated objects.
public static EffectDecorator getRole(EffectDecorator startingDecorator, string role)
{
if (startingDecorator.roleName == role)
{
return(startingDecorator);
}
EffectDecorator parent = recursiveSearch(startingDecorator, role);
return(parent == null ? null : (EffectDecorator)parent.fighter);
}
private float applyImmunity(float incomingDamage)
{
EffectDecorator godMode = getRole(this, "godmode");
if (godMode != null && godMode is InvulnerabilityDecorator)
{
((InvulnerabilityDecorator)godMode).nullifyHit(incomingDamage);
Console.WriteLine("Target receives 0 damage");
return(0);
}
return(incomingDamage);
}
virtual public float receiveDamage(float baseDamage)
{
EffectDecorator godMode = getRole(this, "godmode");
if (godMode != null && godMode is InvulnerabilityDecorator)
{
((InvulnerabilityDecorator)godMode).nullifyHit(baseDamage);
Console.WriteLine("Target receives 0 damage");
return(0);
}
return(fighter.receiveDamage(baseDamage));
}
// Removes the first decorator (that is not given decorator) of a given role.
public static EffectDecorator removeRole(EffectDecorator eff, string role)
{
EffectDecorator parent = recursiveSearch(eff, role);
if (parent == null)
{
return(null);
}
EffectDecorator toRemove = (EffectDecorator)parent.fighter;
IFightableObject afterDeleted = toRemove.fighter;
parent.fighter = afterDeleted;
return(toRemove);
}
//Return the parent of sought role. If decorator of such role was not found, returns null.
private static EffectDecorator recursiveSearch(EffectDecorator parent, string role)
{
if (parent.fighter == null || parent.fighter.GetType() != typeof(EffectDecorator))
{
return(null);
}
EffectDecorator nextDecorator = ((EffectDecorator)(parent.fighter));
if (nextDecorator.roleName == role)
{
return(parent);
}
return(recursiveSearch(nextDecorator, role));
}
// Removed EffectDecorators lose their last reference and should be collected by the garbage collector.
static void removeExpiredEffects(EffectDecorator start)
{
EffectDecorator currentDecorator = start, decorated;
while (!currentDecorator.fighter.GetType().IsSubclassOf(typeof(Fightable)))
{
decorated = (EffectDecorator)currentDecorator.fighter;
if (decorated.duration > 0)
{
currentDecorator = decorated;
}
else
{
currentDecorator.fighter = decorated.fighter;
}
}
}
private void applyOverTimeEffects(EffectDecorator startingEffect)
{
EffectDecorator currentEffect = startingEffect;
OverTimeEffectDecorator overTimeEffect;
while (currentEffect != null)
{
overTimeEffect = (OverTimeEffectDecorator)getRole(currentEffect, overTimeEffectRoleName);
if (overTimeEffect == null)
{
break;
}
overTimeEffect.activate();
if (overTimeEffect.fighter.GetType() != typeof(EffectDecorator))
{
break;
}
currentEffect = (EffectDecorator)overTimeEffect.fighter;
}
}
static void Main(string[] args)
{
IFightableObject player = new Player(100f, 3f, 5f), mob = new NPC(40f, 2f, 3f);
// Over time effect role name:
string oteRoleName = EffectDecorator.overTimeEffectRoleName;
EffectDecorator playerBuffs = new EffectDecorator(
new DamageBuffDecorator(
new DefenceBuffDecorator(player, 1, 0.2f),
3, 1.4f),
9999),
mobBuffs = new EffectDecorator(
new DamageBuffDecorator(mob, 3, 5f),
9999);
IFightableObject buffedPlayer = playerBuffs,
buffedMob = mobBuffs;
// turn 1:
buffedPlayer.dealDamage(buffedMob);
buffedMob.dealDamage(buffedPlayer);
endTurn(buffedMob, buffedPlayer);
// turn 2:
Console.WriteLine("Player uses a healing skill on himself");
EffectDecorator.addEffect(new HotDecorator(null, 3, 10f, oteRoleName), playerBuffs);
Console.WriteLine("Mob causes the player to bleed");
EffectDecorator.addEffect(new DotDecorator(null, 3, 15f, oteRoleName), playerBuffs);
endTurn(buffedMob, buffedPlayer);
// turn 3:
Console.WriteLine("Player becomes invulnerable for 1 turn");
EffectDecorator.addEffect(new InvulnerabilityDecorator(null, 1, 5, 10, "godmode"), playerBuffs);
buffedMob.dealDamage(buffedPlayer);
endTurn(buffedMob, buffedPlayer);
Console.Read();
}
// Adds a new effect to the entity. The new effect decorator will be decorated by the second argument.
public static void addEffect(EffectDecorator toAdd, EffectDecorator decoratesAdded)
{
toAdd.fighter = decoratesAdded.fighter;
decoratesAdded.fighter = toAdd;
}
