/// <summary>
/// Unsubscribe all subscribers from this instance events.
/// </summary>
private void UnsubscribeEvents()
{
if (OnHealthChanges != null)
{
foreach (Action <ChangedHealthArgs> handler in OnHealthChanges.GetInvocationList())
{
OnHealthChanges -= handler;
}
}
if (OnStopShowing != null)
{
foreach (Action <IShowable> handler in OnStopShowing.GetInvocationList())
{
OnStopShowing -= handler;
}
}
if (OnShowableDataChanges != null)
{
foreach (Action <ShowableData> handler in OnShowableDataChanges.GetInvocationList())
{
OnShowableDataChanges -= handler;
}
}
}
/// <summary>
/// Updates the showable health in the UI.
/// </summary>
protected void UpdateShowableHealth()
{
var changedHealth = new ChangedHealthArgs(
currentHealth: HealPoints,
fullness: HealPoints > 0 ? (float)HealPoints / Parameters.HealPointsMax : 0,
description: UnitDescription
);
OnHealthChanges?.Invoke(changedHealth);
}
public void Heal(int amount)
{
if (_health + amount <= _maxHealth)
{
_health += amount;
}
else
{
_health = _maxHealth;
}
OnHealthChanges?.Invoke(this, EventArgs.Empty);
}
public void Damage(int damage)
{
if (_health - damage >= 0)
{
_health -= damage;
}
else
{
_health = 0;
}
OnHealthChanges?.Invoke(this, EventArgs.Empty);
if (_health == 0)
{
OnHealthZero?.Invoke(this, EventArgs.Empty);
}
}
/// <summary>
/// Called when any squad unit has died.
/// </summary>
/// <param name="died">The died.</param>
private void OnUnitDieHandler(IDying died)
{
died.OnDie -= OnUnitDieHandler;
if (died is Unit unit)
{
unit.OnHealthChanges -= OnUnitHealthChangesHandler;
units.Remove(unit);
if (units.Count > 0)
{
var changedHealth = GetChangedHealthArgs();
OnHealthChanges?.Invoke(changedHealth);
}
else
{
OnStopShowing?.Invoke(this);
OnDie?.Invoke(this);
}
}
}
/// <summary>
/// Applies the damage.
/// </summary>
/// <param name="attacker">The attacker.</param>
/// <param name="damage">The damage.</param>
/// <exception cref="ArgumentOutOfRangeException">damage - Must be greater than or equal to 0.</exception>
public void ApplyDamage(ITeamMember attacker, float damage)
{
if (damage < 0)
{
throw new ArgumentOutOfRangeException(nameof(damage), "Must be greater than or equal to 0.");
}
HealPoints -= (int)damage;
if (HealPoints <= 0)
{
Die();
}
var changedHealth = new ChangedHealthArgs(
currentHealth: HealPoints,
fullness: HealPoints > 0 ? (float)HealPoints / healPointsMax : 0f,
description: GetHealthDescription()
);
OnHealthChanges?.Invoke(changedHealth);
}
/// <summary>
/// Called when the health of any unit within the squad has changed.
/// </summary>
/// <param name="changedHealthArgs">The changed health arguments.</param>
private void OnUnitHealthChangesHandler(ChangedHealthArgs changedHealthArgs)
{
var changedHealth = GetChangedHealthArgs();
OnHealthChanges?.Invoke(changedHealth);
}