Looking

Accessing look direction

Every Kompute entity has a lookDirection property representing the direction it's looking towards. The initial value of lookDirection is Vector3D(0, 0, -1). Note that this value should not be modified by the user.

Looking at a target

Entity#setLookTarget API may be used in order to make an Entity look at a target position. In order to achieve realism, this API considers lookSpeed property of the entity in order to gradually look at the target, rather than directly looking at there (turning its head towards the target). Default value of lookSpeed is 0.1.

// create an Entity or a Steerable
var entity = new Kompute.Entity("entity1", new Kompute.Vector3D(), new Kompute.Vector3D(10, 20, 30));

// modify it's look speed
entity.lookSpeed = 0.5;

// create a target
var target = new Kompute.Vector3D(100, 0, 0);

// look at target gradually
entity.setLookTarget(target);

// update the entity
entity.update();

// lookDirection is now updated. Greater the lookSpeed, faster the entity will look at the target position.
console.log(entity.lookDirection);

Facing towards to the movement direction

LookWhereYouAreGoingBehavior may be used to make an entity automatically face towards to the direction it's moving.