Class TCastleMoveAttack

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Values

• stateIdle
• stateMove
• stateAttack
• stateFireMissile
• stateDie
• stateDieBack
• stateHurt

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Default value of AnimationAttack, empty because it is an optional animation.

Default value of AnimationFireMissile, empty because it is an optional animation.

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Default value of AnimationDieBack, empty because it is an optional animation.

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

Called after Parent changed, e.g. at the end of TCastleTransform.AddBehavior.

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;

Actually do the attack indicated by AnimationAttack and AttackTime and other AttackXxx properties. This happens in the middle of AnimationAttack, at the time see AttackTime.

This can happen only if you defined AnimationAttack (it is <> '').

The default implementation here performs a short range attack, if enemy is still within reach (AttackMaxDistance; even if it was within reach at the start of stateAttack state, the enemy could step back, so we need to check AttackMaxDistance again). The damage and knockback are defined by AttackDamage.

Actually do the attack indicated by AnimationFireMissile and FireMissileTime and other FireMissileXxx properties. This happens in the middle of AnimationFireMissile, at the time FireMissileTime.

This can happen only if you defined AnimationFireMissile (it is <> '').

The default implementation here creates a new missile using FireMissileFactory, if FireMissileFactory is not Nil.

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

Section where to show property in the editor.

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

Continuously occuring event, for various tasks.

Current state of the creature, automatically changing.

Life, in seconds.

Enemy that is being chased and attacked by this creature. May be Nil, which means that the creature is not chasing anybody.

Sound played when short-range attack hits.

Played at the start of attack animation, that is when entering stateAttack state. To play a sound when the actual hit happens (at AttackTime) see SoundAttackHit.

This is a sound name from sound repository (see https://castle-engine.io/manual_sound.php). None by default.

An animation of being idle (standing / floating in place). Will be played in a loop.

Animation of moving, will be played in a loop.

An animation of short-range attacking. Optional, it may be '' if creature doesn't make short-range attack.

Firing missile animation. Optional, it may be '' if creature doesn't fire missiles.

You can always override TCastleMoveAttack.FireMissile to do pretty much anything you want, and this way treat this as an "alternate attack", not necessarily firing a missile. It's not really required to actually fire a missile — it's only what happens at the default TCastleMoveAttack.FireMissile implementation.

An animation of dying.

Dying animation is not displayed in a loop, after it runs it's duration we constantly show the final frame. Unless you set RemoveDead to True, then the dead creature will be completely removed from the level.

Alternative optional (may be '') dying animation, used when the creature is killed by hitting it in the back. This may be useful if you want your creature to fall face-down when killed from the back or face-up when killed from the front. If this is defined, then AnimationDie is only used when creature is killed by hitting it from the front. The direction of last hit is taken from LastHurtDirection.

Animation when the creature will be hurt.

Minimum delay between one attack and the other, in seconds. Note that the duration of AnimationAttack also limits how often creature can do an attack (so e.g. setting this to 0.0 doesn't mean that creature can constantly attack, if AnimationAttack takes 1 second then at least this 1 second will have to pass between actual attack hits).

Maximum distance between enemy and creature to allow creature to start attack. The distance is measured between enemy (see TCastleMoveAttack.Enemy) and current creature Middle (see TCastleTransform.Middle) points.

The time point within AnimationAttack at which the short-range attack happens. When exactly happens depends on the virtual TCastleMoveAttack.Attack method implementation, in the base TCastleMoveAttack it is a short-range attack.

Since most of the creatures will have their weapon on their front (teeth, shooting hands, claws, whatever), they can attack enemy only when they are facing the enemy.

More precisely, the attack is allowed to start only when the angle between current creature Direction and the vector from creature's Middle to the enemy's Middle (see TCastleTransform.Middle) is <= AttackMaxAngle.

This is in radians.

Attack damage. Used by the creatures that do short-range attack (when AnimationAttack is set).

The time (in seconds) since the AnimationFireMissile start when we actually spawn a missile. By default zero, which means that we spawn the missile right when AnimationFireMissile starts. Must be < than the AnimationFireMissile duration, otherwise we will never reach tthis time and missile will never be fired.

Minimum delay (in seconds) between firing of the missiles. The missile will not be fired if a previous missile was fired within last FireMissileMinDelay seconds. (Even if all other conditions for firing the missile are satisfied.)

Maximum distance to the enemy to make firing missiles sensible. The creature will only fire the missile if enemy is within this distance. The creature will also try to shorten distance to the enemy, to get within this distance.

Maximum angle (in radians) between current direction and the direction toward enemy to make firing missiles sensible. The creature will only fire the missile if enemy is within a cone of this angle.

Height (between Position and Middle, usually: legs and eyes) of the fired missile (see FireMissileFactory).

The moving speed: how much Direction vector will be scaled when moving in csWalk.

Portion of life and distance when the creature decides it's best to run away from the enemy. RunAwayLife is expressed as a fraction of MaxLife. We run if our Life <= MaxLife * RunAwayLife and the distance to the (last seen) enemy is < RunAwayDistance. Set RunAwayLife = 1 to make the creature always try to keep a safe distance from the enemy.

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The preferred distance between enemy and the creature. The creature will try to walk closer to the enemy if the distance is larger. (If you want to make the creature to also walk father from the enemy when necessary, then set RunAwayLife and RunAwayDistance.)

This should be <= AttackMaxDistance or FireMissileMaxDistance, if you hope to actually perform a short-range or firing missile attack. The creature can attack enemy from AttackMaxDistance or fire missile from FireMissileMaxDistance, but it will walk closer to the enemy if possible — until the distance is PreferredDistance.

Distance to point to move to, when creature wanders aimlessly unable to reach the target, but also wanting to move somewhere.

When considering possible movement, creature is OK to fall down from this height. It should be small enough to not let creature to jump into chasms, but also large enough to enable creature to get down e.g. stairs.

Creature sees other things (like enemies) only within a cone of this angle. This way, the creature only looks forward, and you can sneak upon a creature from the back. Simply set this to >= 2 * Pi to remove this limit.

Note that the creature also becomes aware of the enemy when it is hurt by a direct attack, regardless of VisibilityAngle. This way if you sneak and attack a creature from the back, it will turn around and fight you.

Creature can also smell others, see SmellDistance.

Creature smells other things (like enemies) within a sphere of this radius. This allows to detect enemy regardless of which direction the creature is facing, regardless of whether there is a line of sight to the enemy, regardless if enemy is moving.

This is quite powerful ability to detect enemies, if you set this to something large (by default it's zero). Detecting enemies allows to more accurately/faster attack them and/or run away from them.

Note: If you want the creature to nicely run from behind the corner, be sure to setup good sectors/waypoints in your level.

Should dead creature instances be automatically freed and thus removed from the viewport. The default False means that corpses lie in the world forever (or until you manually remove them).