Class TCastleLiving

Default value for MaxLife and Life.

This item has no description. Showing description inherited from TCastleBehavior.CanAttachToParent.

Check can this behavior be added to NewParent. When this returns False, it has to set also ReasonWhyCannot. When overriding this, you can use e.g. this code to make sure we are the only behavior of given class:

function TCastleBillboard.CanAttachToParent(const NewParent: TCastleTransform;
  out ReasonWhyCannot: String): Boolean;
begin
  Result := inherited;
  if not Result then Exit;

  if NewParent.FindBehavior(TCastleBillboard) <> nil then
  begin
    ReasonWhyCannot := 'Only one TCastleBillboard behavior can be added to a given TCastleTransform';
    Result := false;
  end;
end;

This item has no description.

This item has no description. Showing description inherited from TCastleComponent.PropertySections.

Section where to show property in the editor.

Shortcut for checking Life > 0. Always equal to not Dead.

Shortcut for checking Life <= 0. Always equal to not Alive.

Hurt given creature, decreasing its Life by LifeLoss, also setting some additional properties that describe the damage. These additional properties do not do anything in this class – but they may be useful by other effects, e.g. "knockback", done by other behaviors.

Note: If all you want to do is to decrease Life, you can also just set Life property directly, like MyCreature.Life := MyCreature.Life - 10;.

)

Parameters

AHurtDirection

Should be a normalized vector indicating direction from which the attack came, in world coordinates.

In this class, it does nothing, merely sets HurtDirection property. Which may be used by other effects.

AHurtStrength

Describes "strength" of the attack. What this "strengh" exactly means is not defined in this class. It may cause a "knockback" effect, in which case it may be a knockback distance, or a physical force strength, and is meaningful only when AHurtDirection parameter is non-zero.

In this class, it does nothing, merely sets HurtStrength property. Which may be used by other effects.

AnAttacker

The other living creature that caused this damage. It may be Nil if no other TCastleLiving is directly responsible for this damage. This may be useful for various purposes, for example the victim may become aware of attacker presence when it's attacked.

In this class, it does nothing, merely sets Attacker property. Which may be used by other effects.

Direction from where the last attack came, set by Hurt, in world coordinates. Zero if there was no specific direction of last attack, otherwise a normalized (length 1) vector.

Strengh of the last attack, set by Hurt. What this "strengh" exactly means is not defined in this class. It may cause a "knockback" effect, in which case it may be a knockback distance, or a physical force strength, and is meaningful only when HurtDirection is non-zero.

Last attacker. Set by the last Hurt call, it may also be set directly.

Current Life (hit points). The object is considered "dead" when this is <= 0.

Expressed as float, allows to represent fractional life, allows to animate life (e.g. increasing life by some "SecondsPassed * RegenerationRate" each frame, or decreasing by "SeconsPassed * PoisonSpeed").

Maximum amount of life. Can be also used for information (to display on player HUDs and such).

This is not a strict limit on Life, i.e. all the code allows the have Life > MaxLife to account for special game mechanisms, like "magic life boost to make health temporarily larger than normal". It is up to your game logic whether such situation will actually happen.

Event called right after creature is hurt and properties like HurtDirection, HurtStrength and Attacker are set.