using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using MuHua;

public class AnimalMachine : Machine {
    [Header("饥饿度参数")]
    public float hunger = 100.0f; // 饥饿度，从0到100
    public float maxHunger = 100.0f; // 最大饥饿度
    public float searchRadius = 10.0f; // 搜索食物的半径

    [Header("控制组件")]
    public Movement movement; // 运动控制器
    public Animator animator; // 动画控制器

    private float hungerTimer = 0.0f; // 计时器
    private float chasingCooldownTimer = 0.0f; // 追逐状态冷却计时器
    private const float chasingCooldown = 5.0f; // 追逐状态冷却时间

    protected override void InitializeStates() {
        RegisterState("Idle", new AnimalIdleState(this));
        RegisterState("Roaming", new AnimalRoamingState(this));
        RegisterState("Chasing", new AnimalChasingState<AnimalFood>(this));
        RegisterState("Eating", new AnimalEatingState(this));

        ChangeState("Idle");
    }

    protected override void Update() {
        base.Update();

        // 更新计时器
        hungerTimer += Time.deltaTime;
        chasingCooldownTimer += Time.deltaTime;

        if (hungerTimer >= 1.0f) { ConsumeHunger(); }
    }

    public virtual void ConsumeHunger() {
        // 重置计时器
        hungerTimer = 0.0f;
        // 每次消耗1点饥饿度
        hunger -= 1.0f;
        if (hunger < 0.0f) { hunger = 0.0f; }

        // 如果饥饿度低于最大饥饿度的70%，有50%的概率触发Chasing状态
        // 如果饥饿度低于最大饥饿度的30%，有90%的概率触发Chasing状态
        float foraging = hunger < maxHunger * 0.3f ? 0.9f : 0.5f;
        bool valid = hunger < maxHunger * 0.7f && Random.value < foraging;

        // 如果触发Chasing状态，且冷却时间已过，切换到Chasing状态
        if (valid && chasingCooldownTimer >= chasingCooldown) {
            ChangeState("Chasing");
            chasingCooldownTimer = 0.0f; // 重置冷却计时器
        }
    }

    // 从指定范围内查找指定类型的组件
    public virtual bool Find<T>(out T value) where T : Component {
        Collider[] colliders = Physics.OverlapSphere(transform.position, searchRadius);
        foreach (Collider collider in colliders) {
            T component = collider.GetComponent<T>();
            if (component != null) {
                value = component;
                return true;
            }
        }
        value = null;
        return false;
    }

    public override bool UpdateMove(Vector3 position) {
        return movement.UpdateMove(position);
    }
    public override void AnimationTrigger(string value) {
        throw new System.NotImplementedException();
    }
    public override void AnimationEnd() {
        throw new System.NotImplementedException();
    }
}