Example of a movement system in artemis-odb

MovementSystem.java

@All({ Position.class, Velocity.class })
public class MovementSystem extends IteratingSystem {

    // Component mappers
    private ComponentMapper<Position> posM;
    private ComponentMapper<Velocity> velocityM;

    @Override
    protected void process(int entityId) {
        var velocity = velocityM.get(entityId);
        if (velocity.moving()) {
            var pos = posM.get(entityId);
            pos.translate(velocity.vx() * world.delta, velocity.vy() * world.delta);
        }
    }

}

Position.java

@Data
public class Position extends PooledComponent {

    private boolean immutable;
    private float x, y;
  
    public Position translate(float x, float y) {
        this.x += x;
        this.y += y;

        return this;
    }
  
}

Velocity.java

@Data
public class Velocity extends PooledComponent {

    private float vx, vy;

}