override fun render(delta: Float) {
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT)

    actorManager.addNewActors(stage)

    viewPort.camera.update()

    stage.act(delta)
    stage.draw()

    world.step(delta, 8, 3)
    debugger.render(world, viewPort.camera.combined)
}

fun markToAdd(actor: BaseActor<*>) {
    toAdd.add(actor)
}

fun addNewActors(stage: Stage) {
    toAdd.forEach { actor: BaseActor<*> ->
        stage.addActor(actor)
        actor.addToWorld(worldService.getWorld())
        Gdx.app.log("afterAdd", (++charactersOnStage).toString())
    }
    toAdd.clear()
}

override fun draw(batch: Batch, parentAlpha: Float) {
    super.draw(batch, parentAlpha)

    if (isMoving) {
        frameStateTime += Gdx.graphics.deltaTime
    }

    // DRAW TEXTURE
    val frame = animationManager.getFrameAndChangeSpeed(AnimationType.KNIGHT_WALK_RIGHT, frameStateTime, getSpeed())
    val frameX: Float = position.x - (size.width / 2)
    val frameY: Float = position.y - (size.height / 2)

    batch.draw(frame, frameX, frameY, size.width, size.height)

    // END DRAW
}

override fun draw(batch: Batch, parentAlpha: Float) {
    super.draw(batch, parentAlpha)

    if (isMoving) {
        frameStateTime += Gdx.graphics.deltaTime
    }

    // DRAW TEXTURE
    val frame = animationManager.getFrameAndChangeSpeed(AnimationType.RAT_WALK_LEFT, frameStateTime, getSpeed())
    val frameX: Float = position.x - (size.width / 2)
    val frameY: Float = position.y - (size.height / 2)

    batch.draw(frame, frameX, frameY, size.width, size.height)

    // END DRAW
}

fun getAnimation(animationType: AnimationType): Animation<TextureRegion> {
    return AssetsManager.loadSprite(animationType.spriteFile, animationType.alias).getAnimationForSprite(animationType.alias, animationType.width, animationType.height)
}
fun getFrameAndChangeSpeed(animationType: AnimationType, stateTime: Float, speed: Float, looping: Boolean = true): TextureRegion {
    val animation = getAnimation(animationType)
    animation.frameDuration = 1 / speed
    return animation.getKeyFrame(stateTime, looping)
}