如何在behaviors FollowPath (libgdx)中持续移动？

import com.badlogic.gdx.ai.btree.BehaviorTree;
import com.badlogic.gdx.ai.btree.Task;
import com.badlogic.gdx.ai.btree.branch.Sequence;
import com.badlogic.gdx.ai.btree.decorator.AlwaysSucceed;
import com.badlogic.gdx.ai.btree.leaf.RunAction;
import com.badlogic.gdx.ai.btree.utils.BehaviorTreeLibraryManager;
import com.badlogic.gdx.ai.btree.utils.BehaviorTreeParser;
import com.badlogic.gdx.math.Vector2;

public class ContinuousMovementExample {

    private Vector2 currentPosition;
    private Vector2 targetPosition;

    private BehaviorTree<Entity> behaviorTree;

    public ContinuousMovementExample() {
        currentPosition = new Vector2(0, 0);
        targetPosition = new Vector2(10, 10);

        // 创建行为树
        behaviorTree = createBehaviorTree();
    }

    public void update(float deltaTime) {
        // 更新行为树
        behaviorTree.step();

        // 持续移动
        move(deltaTime);
    }

    private void move(float deltaTime) {
        // 计算移动方向和距离
        Vector2 direction = targetPosition.cpy().sub(currentPosition).nor();
        float distance = currentPosition.dst(targetPosition);

        // 计算移动速度
        float speed = 5.0f;

        // 根据速度和时间更新当前位置
        currentPosition.add(direction.scl(speed * deltaTime));

        // 如果已经到达目标位置，则生成新的目标位置
        if (distance <= 0.1f) {
            generateNewTargetPosition();
        }
    }

    private void generateNewTargetPosition() {
        // 生成新的目标位置，这里使用随机位置作为示例
        float newX = MathUtils.random(0, 100);
        float newY = MathUtils.random(0, 100);
        targetPosition.set(newX, newY);
    }

    private BehaviorTree<Entity> createBehaviorTree() {
        // 创建行为树库管理器
        BehaviorTreeLibraryManager libraryManager = BehaviorTreeLibraryManager.getInstance();

        // 创建行为树解析器
        BehaviorTreeParser<Entity> parser = new BehaviorTreeParser<>(BehaviorTreeParser.DEBUG_NONE);

        // 创建根节点
        Sequence<Entity> root = new Sequence<>();

        // 创建持续移动的行为节点
        RunAction<Entity> moveAction = new RunAction<>();
        moveAction.setRunnable(entity -> update(deltaTime));

        // 创建一直成功的修饰节点
        AlwaysSucceed<Entity> alwaysSucceed = new AlwaysSucceed<>();
        alwaysSucceed.addChild(moveAction);

        // 将修饰节点添加到根节点
        root.addChild(alwaysSucceed);

        // 创建行为树
        BehaviorTree<Entity> behaviorTree = new BehaviorTree<>(root);

        // 将行为树添加到行为树库管理器
        libraryManager.registerArchetypeTree("ContinuousMovement", behaviorTree);

        return behaviorTree;
    }
}