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

public class TowerController : MonoBehaviour
{
    private void Update()
    {
        if(this.gameObject.tag == "BlueTower")
        {
            GetComponent<MeshRenderer>().material.color = Color.blue;
        }
        else if(this.gameObject.tag == "RedTower")
        {
            GetComponent<MeshRenderer>().material.color = Color.red;
        }
    }
}
C#

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

public class TeritoryController : MonoBehaviour
{
    void Update()
    {
        if(transform.root.tag == "BlueTower")
        {
            this.gameObject.tag = "BlueTeritory";
            GetComponent<MeshRenderer>().material.color = new Color(0.025f, 1, 1, 0.3f);
        }
        if(transform.root.tag == "RedTower")
        {
            this.gameObject.tag = "RedTeritory";
            GetComponent<MeshRenderer>().material.color = new Color(1, 0.03f, 0.03f, 0.3f);
        }
    }
}
C#

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

public class TowerController : MonoBehaviour
{
    private void Update()
    {
        if (this.gameObject.tag == "BlueTower")
        {
            GetComponent<MeshRenderer>().material.color = Color.blue;
        }
        else if (this.gameObject.tag == "RedTower")
        {
            GetComponent<MeshRenderer>().material.color = Color.red;
        }
    }

    // ★追加
    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.tag == "EnemyBot")
        {
            this.gameObject.tag = "RedTower";
        }
        else if (other.gameObject.tag == "MyBot")
        {
            this.gameObject.tag = "BlueTower";
        }
    }
}
C#