How to use

setDirection

method

in

de.slikey.effectlib.util.DynamicLocation

public void update() {
  if (location == null || (!updateLocation && !updateDirection)) {
    return;
  }
  Entity entityReference = entity == null ? null : entity.get();
  if (entityReference != null) {
    Location currentLocation = getEntityLocation(entityReference);
    if (updateDirection)
    {
      setDirection(currentLocation.getDirection());
    }
    if (updateLocation)
    {
      updateFrom(currentLocation);
    }
  }
}

  protected void startProjectileEffects(CastContext context, String effectKey) {

    Collection<EffectPlayer> projectileEffects = context.getEffects(effectKey);
    for (EffectPlayer apiEffectPlayer : projectileEffects)
    {
      if (effectLocation == null) {
        effectLocation = new DynamicLocation(actionContext.getTargetLocation());
        effectLocation.setDirection(velocity);
      }
      if (activeProjectileEffects == null) {
        activeProjectileEffects = new ArrayList<>();
      }
      // Hrm- this is ugly, but I don't want the API to depend on EffectLib.
      if (apiEffectPlayer instanceof com.elmakers.mine.bukkit.effect.EffectPlayer)
      {
        com.elmakers.mine.bukkit.effect.EffectPlayer effectPlayer = (com.elmakers.mine.bukkit.effect.EffectPlayer)apiEffectPlayer;
        effectPlayer.setEffectPlayList(activeProjectileEffects);
        if (projectileEffectsUseTarget) {
          Entity sourceEntity = actionContext.getEntity();
          DynamicLocation sourceLocation = sourceEntity == null ? new DynamicLocation(actionContext.getLocation()) : new DynamicLocation(sourceEntity);
          effectPlayer.startEffects(sourceLocation, effectLocation);
        } else {
          effectPlayer.startEffects(effectLocation, null);
        }
      }
    }
  }
}

effectLocation.setDirection(velocity);