【バイオハザード風のゲームを作ってみよう。その8】

今回も下記動画を参考にやっていきます。
youtu.be

今回は、ゾンビをAI動作させる準備をしていきます。

・キャラクターとアニメーションはいつも通りmixamoからダウンロードしました。

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

public class ZombieManager : MonoBehaviour　//EP8追加 ゾンビオブジェクトにアタッチ
{
    //The state this character begins on
    public IdleState startingState;

    //The state this character is currently on
    [SerializeField] private State currentState;

    private void Awake()
    {
        currentState = startingState;
    }

    private void FixedUpdate()
    {
        HandleStateMachine();
    }

    private void HandleStateMachine()
    {
        State nextState;

        if (currentState != null)
        {
            nextState = currentState.Tick();

            if (nextState != null)
            {
                currentState = nextState;
            }
        }
    }
}

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

public class State : MonoBehaviour //EP8追加　
{

    //this is the base class for all future state
    //抽象メソッド。なお、virtualの場合、オーバーライドしなくてもエラーにならなく、実際の処理を記述することもできる。
    public virtual State Tick() 
    {
        Debug.Log("Running State");
        return this;
    }
}

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

public class IdleState : State //EP8追加　ゾンビ直下のstatesオブジェクトにアタッチ
{
    PurseTargetState purseTargetState;

    //we make our character idle until they find a potential target
    //if a target is found we proceed to the "PursueTarget" state
    //if no target is found we remain in the idle position

    [SerializeField] bool hasTarget;

    private void Awake()
    {
        purseTargetState = GetComponent<PurseTargetState>();
    }


    public override State Tick()
    {
        //LOGIC TO FIND A TARGET GOES HERE.

        if (hasTarget)
        {
            Debug.Log("we have found a target!");
            return purseTargetState;
        }
        else
        {
            Debug.Log("We have no target yet.");
            return this;
        }
        
    }
}

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

public class PurseTargetState : State //EP8追加　ゾンビ直下のstatesオブジェクトにアタッチ
{
    public override State Tick()
    {
        //logic to follow current target goes here

        Debug.Log("Running pursue target state");
        return this;
    }
}

今回は以上です。