这是一个老教程了，但是对于没有写过回合制的初级程序同学来讲是比较适合的，也可以直接看源码，半小时内可以解决战斗

当然，我也没写过回合制系统所以就到处找，思路明白了就能自己修改了

视频教程 - 油管链接 

Turn-Based Combat in Unity (youtube.com)

GitHub - 完整工程案例 

wBrackeys/Turn-based-combat: Project files for our tutorial on how to create a turn-based battle system. (github.com)

实现效果 

流程图 

Start进入PlayerAttack，之后便是几个枚举状态之间的循环了

主要代码

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

// 定义战斗状态的枚举
public enum BattleState { START, PLAYERTURN, ENEMYTURN, WON, LOST }

public class BattleSystem : MonoBehaviour
{
    // 玩家和敌人的预制体
	public GameObject playerPrefab;
	public GameObject enemyPrefab;

    // 玩家和敌人的战斗位置
	public Transform playerBattleStation;
	public Transform enemyBattleStation;

    // 玩家和敌人的单位
	Unit playerUnit;
	Unit enemyUnit;

    // 对话文本
	public Text dialogueText;

    // 玩家和敌人的HUD
	public BattleHUD playerHUD;
	public BattleHUD enemyHUD;

    // 当前战斗状态
	public BattleState state;

    // Start is called before the first frame update
    void Start()
    {
        // 初始化战斗状态为START
		state = BattleState.START;
        // 启动设置战斗的协程
		StartCoroutine(SetupBattle());
    }

    // 设置战斗的协程
	IEnumerator SetupBattle()
	{
        // 实例化玩家和敌人的预制体
		GameObject playerGO = Instantiate(playerPrefab, playerBattleStation);
		playerUnit = playerGO.GetComponent<Unit>();

		GameObject enemyGO = Instantiate(enemyPrefab, enemyBattleStation);
		enemyUnit = enemyGO.GetComponent<Unit>();

        // 更新对话文本
		dialogueText.text = "A wild " + enemyUnit.unitName + " approaches...";

        // 设置玩家和敌人的HUD
		playerHUD.SetHUD(playerUnit);
		enemyHUD.SetHUD(enemyUnit);

        // 等待2秒
		yield return new WaitForSeconds(2f);

        // 切换到玩家回合
		state = BattleState.PLAYERTURN;
		PlayerTurn();
	}

    // 玩家攻击的协程
	IEnumerator PlayerAttack()
	{
        // 玩家攻击敌人并检查敌人是否死亡
		bool isDead = enemyUnit.TakeDamage(playerUnit.damage);

        // 更新敌人的HP和对话文本
		enemyHUD.SetHP(enemyUnit.currentHP);
		dialogueText.text = "The attack is successful!";

        // 等待2秒
		yield return new WaitForSeconds(2f);

        // 如果敌人死亡，结束战斗；否则，切换到敌人回合
		if(isDead)
		{
			state = BattleState.WON;
			EndBattle();
		} else
		{
			state = BattleState.ENEMYTURN;
			StartCoroutine(EnemyTurn());
		}
	}

    // 敌人回合的协程
	IEnumerator EnemyTurn()
	{
        // 更新对话文本
		dialogueText.text = enemyUnit.unitName + " attacks!";

        // 等待1秒
		yield return new WaitForSeconds(1f);

        // 敌人攻击玩家并检查玩家是否死亡
		bool isDead = playerUnit.TakeDamage(enemyUnit.damage);

        // 更新玩家的HP
		playerHUD.SetHP(playerUnit.currentHP);

        // 等待1秒
		yield return new WaitForSeconds(1f);

        // 如果玩家死亡，结束战斗；否则，切换到玩家回合
		if(isDead)
		{
			state = BattleState.LOST;
			EndBattle();
		} else
		{
			state = BattleState.PLAYERTURN;
			PlayerTurn();
		}
	}

    // 结束战斗的方法
	void EndBattle()
	{
		if(state == BattleState.WON)
		{
			dialogueText.text = "You won the battle!";
		} else if (state == BattleState.LOST)
		{
			dialogueText.text = "You were defeated.";
		}
	}

    // 玩家回合的方法
	void PlayerTurn()
	{
		dialogueText.text = "Choose an action:";
	}

    // 玩家治疗的协程
	IEnumerator PlayerHeal()
	{
        // 玩家恢复HP
		playerUnit.Heal(5);

        // 更新玩家的HP和对话文本
		playerHUD.SetHP(playerUnit.currentHP);
		dialogueText.text = "You feel renewed strength!";

        // 等待2秒
		yield return new WaitForSeconds(2f);

        // 切换到敌人回合
		state = BattleState.ENEMYTURN;
		StartCoroutine(EnemyTurn());
	}

    // 攻击按钮的事件处理方法
	public void OnAttackButton()
	{
		if (state != BattleState.PLAYERTURN)
			return;

		StartCoroutine(PlayerAttack());
	}

    // 治疗按钮的事件处理方法
	public void OnHealButton()
	{
		if (state != BattleState.PLAYERTURN)
			return;

		StartCoroutine(PlayerHeal());
	}
}

次要代码

战斗单位脚本，主要是属性

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

public class Unit : MonoBehaviour
{

	public string unitName;
	public int unitLevel;

	public int damage;

	public int maxHP;
	public int currentHP;

	public bool TakeDamage(int dmg)
	{
		currentHP -= dmg;

		if (currentHP <= 0)
			return true;
		else
			return false;
	}

	public void Heal(int amount)
	{
		currentHP += amount;
		if (currentHP > maxHP)
			currentHP = maxHP;
	}

}

 更新UI代码
 

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

public class BattleHUD : MonoBehaviour
{

	public Text nameText;
	public Text levelText;
	public Slider hpSlider;

	public void SetHUD(Unit unit)
	{
		nameText.text = unit.unitName;
		levelText.text = "Lvl " + unit.unitLevel;
		hpSlider.maxValue = unit.maxHP;
		hpSlider.value = unit.currentHP;
	}

	public void SetHP(int hp)
	{
		hpSlider.value = hp;
	}

}