Waypoints

ViewCollections

RoadCube

这里rigidbody失效的原因是：之前把Physics里Layer交互限定了。子弹的层级无法与Enemy交互。把子弹的Layer改为Turret就好了。

if(isOn){

selctedTurretData = laserTurretData;

}

老师做的子弹击中是计算距离的，如果按照碰撞击中的话，记得把bullet的collider和rigid body复制过来

如果摄像头不是原来的，而是自己新建的，记得给摄像头改名并且tag改成maincamera

Radius粒子效果的起始点2的位置大小。

Enemy.cs

using UnityEngine;
using UnityEngine.UI;

public class Enemy : MonoBehaviour
{
    public float speed = 10.0f;
    public float hp = 150;
    private float totalHp;
    public GameObject explosionEffect;
    private Slider hpSlider;
    private Transform[] positions;
    private int index = 0;

    void Start()
    {
        positions = Waypoints.positions;
        totalHp = hp;
        hpSlider = GetComponentInChildren<Slider>();
    }

    void Update()
    {
        Move();
    }

    private void Move()
    {
        if (index > positions.Length - 1) return;
        transform.Translate((positions[index].position - transform.position).normalized * speed * Time.deltaTime);
        if (Vector3.Distance(positions[index].position, transform.position) < 0.2f)
        {
            index++;
        }
        if (index > positions.Length - 1)
        {
            ReachDestination();
        }
    }

    private void ReachDestination()
    {
        GameObject.Destroy(this.gameObject);
    }

    private void OnDestroy()
    {
        EnemySpawner.CountEnemyAlive--;
    }

    public void TakeDamage(float damage)
    {
        if (hp <= 0) return;//如果当前敌人hp小于0，死了不作处理
        hp -= damage;
        hpSlider.value = (float)hp / totalHp;
        if (hp <= 0)
        {
            Die();
        }
    }

    private void Die()
    {
        GameObject effect = GameObject.Instantiate(explosionEffect, transform.position, transform.rotation);
        Destroy(effect, 1.5f);
        Destroy(this.gameObject);
    }
}

Turret.cs

using System.Collections.Generic;
using UnityEngine;

public class Turret : MonoBehaviour
{
    private List<GameObject> enemys = new List<GameObject>();

    private void OnTriggerEnter(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Add(col.gameObject);
        }
    }

    private void OnTriggerExit(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Remove(col.gameObject);
        }
    }

    public float attackRateTime = 1.0f; //多少秒攻击一次
    private float timer = 0.0f;
    public GameObject bulletPrefab;
    public Transform firePosition;
    public Transform head;

    public bool useLaser = false;

    public float damageRate = 70.0f;

    public LineRenderer laserRenderer;

    public GameObject laserEffect;

    private void Start()
    {
        timer = attackRateTime;
    }

    private void Update()
    {
        //先调整方向，再攻击
        if (enemys.Count > 0 && enemys[0] != null)
        {
            Vector3 targetPosition = enemys[0].transform.position;
            targetPosition.y = head.position.y;
            head.LookAt(targetPosition);
        }
        //攻击
        if (useLaser == false)
        {
            timer += Time.deltaTime;
            if (enemys.Count > 0 && timer >= attackRateTime)//刚刚实例化出来的时候，攻击就绪，第一次可以攻击
            {
                timer = 0;
                Attack();
            }
        }
        else if (enemys.Count > 0)
        {
            if (laserRenderer.enabled == false)
                laserRenderer.enabled = true;
            laserEffect.SetActive(true);
            if (enemys[0] == null)
            {
                UpdateEnemys();
            }
            if (enemys.Count > 0)
            {
                laserRenderer.SetPositions(new Vector3[] { firePosition.position, enemys[0].transform.position });
                enemys[0].GetComponent<Enemy>().TakeDamage(damageRate * Time.deltaTime);
                laserEffect.transform.position = enemys[0].transform.position;
                Vector3 pos = transform.position;
                pos.y = enemys[0].transform.position.y;
                laserEffect.transform.LookAt(pos);
            }
        }
        else
        {
            laserEffect.SetActive(false);
            laserRenderer.enabled = false;
        }
    }

    private void Attack()
    {
        if (enemys[0] == null)
        {
            UpdateEnemys();
        }
        if (enemys.Count > 0)
        {
            GameObject bullet = GameObject.Instantiate(bulletPrefab, firePosition.position, firePosition.rotation);
            bullet.GetComponent<Bullet>().SetTarget(enemys[0].transform);
        }
        else
        {
            timer = attackRateTime;
        }
    }

    private void UpdateEnemys()
    {
        //enemys.RemoveAll(null);
        List<int> emptyIndex = new List<int>();
        for (int index = 0; index < enemys.Count; index++)
        {
            if (enemys[index] == null)
            {
                emptyIndex.Add(index);
            }
        }

        for (int i = 0; i < emptyIndex.Count; i++)
        {
            enemys.RemoveAt(emptyIndex[i] - i);//移除一个元素，索引会减少1，Count会减小。
        }
    }
}

透明度混合Shader：Shader/Particles/AlphaBlended

Turret.cs

using System.Collections.Generic;
using UnityEngine;

public class Turret : MonoBehaviour
{
    private List<GameObject> enemys = new List<GameObject>();

    private void OnTriggerEnter(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Add(col.gameObject);
        }
    }

    private void OnTriggerExit(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Remove(col.gameObject);
        }
    }

    public float attackRateTime = 1.0f; //多少秒攻击一次
    private float timer = 0.0f;
    public GameObject bulletPrefab;
    public Transform firePosition;
    public Transform head;

    public bool useLaser = false;

    public float damageRate = 70.0f;

    public LineRenderer laserRenderer;

    private void Start()
    {
        timer = attackRateTime;
    }

    private void Update()
    {
        //先调整方向，再攻击
        if (enemys.Count > 0 && enemys[0] != null)
        {
            Vector3 targetPosition = enemys[0].transform.position;
            targetPosition.y = head.position.y;
            head.LookAt(targetPosition);
        }
        //攻击
        if (useLaser == false)
        {
            timer += Time.deltaTime;
            if (enemys.Count > 0 && timer >= attackRateTime)//刚刚实例化出来的时候，攻击就绪，第一次可以攻击
            {
                timer = 0;
                Attack();
            }
        }
        else if(enemys.Count>0)
        {
            if (laserRenderer.enabled == false)
                laserRenderer.enabled = true;
            if (enemys[0] == null)
            {
                UpdateEnemys();
            }
            if(enemys.Count>0)
            {
                laserRenderer.SetPositions( new Vector3[] { firePosition.position, enemys[0].transform.position });
            }
        }
        else
        {
            laserRenderer.enabled = false;
        }
    }

    private void Attack()
    {
        if (enemys[0] == null)
        {
            UpdateEnemys();
        }
        if (enemys.Count > 0)
        {
            GameObject bullet = GameObject.Instantiate(bulletPrefab, firePosition.position, firePosition.rotation);
            bullet.GetComponent<Bullet>().SetTarget(enemys[0].transform);
        }
        else
        {
            timer = attackRateTime;
        }
    }

    private void UpdateEnemys()
    {
        //enemys.RemoveAll(null);
        List<int> emptyIndex = new List<int>();
        for (int index = 0; index < enemys.Count; index++)
        {
            if (enemys[index] == null)
            {
                emptyIndex.Add(index);
            }
        }

        for (int i = 0; i < emptyIndex.Count; i++)
        {
            enemys.RemoveAt(emptyIndex[i] - i);//移除一个元素，索引会减少1，Count会减小。
        }
    }
}

Turret.cs

using System.Collections.Generic;
using UnityEngine;

public class Turret : MonoBehaviour
{
    private List<GameObject> enemys = new List<GameObject>();

    private void OnTriggerEnter(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Add(col.gameObject);
        }
    }

    private void OnTriggerExit(Collider col)
    {
        if (col.tag == "Enemy")
        {
            enemys.Remove(col.gameObject);
        }
    }

    public float attackRateTime = 1.0f; //多少秒攻击一次
    private float timer = 0.0f;
    public GameObject bulletPrefab;
    public Transform firePosition;
    public Transform head;

    public bool useLaser = false;

    public float damageRate = 70.0f;

    private void Start()
    {
        timer = attackRateTime;
    }

    private void Update()
    {
        //先调整方向，再攻击
        if (enemys.Count > 0 && enemys[0] != null)
        {
            Vector3 targetPosition = enemys[0].transform.position;
            targetPosition.y = head.position.y;
            head.LookAt(targetPosition);
        }
        //攻击
        if (useLaser == false)
        {
            timer += Time.deltaTime;
            if (enemys.Count > 0 && timer >= attackRateTime)//刚刚实例化出来的时候，攻击就绪，第一次可以攻击
            {
                timer = 0;
                Attack();
            }
        }
        else
        {

        }
    }

    private void Attack()
    {
        if (enemys[0] == null)
        {
            UpdateEnemys();
        }
        if (enemys.Count > 0)
        {
            GameObject bullet = GameObject.Instantiate(bulletPrefab, firePosition.position, firePosition.rotation);
            bullet.GetComponent<Bullet>().SetTarget(enemys[0].transform);
        }
        else
        {
            timer = attackRateTime;
        }
    }

    private void UpdateEnemys()
    {
        //enemys.RemoveAll(null);
        List<int> emptyIndex = new List<int>();
        for (int index = 0; index < enemys.Count; index++)
        {
            if (enemys[index] == null)
            {
                emptyIndex.Add(index);
            }
        }

        for (int i = 0; i < emptyIndex.Count; i++)
        {
            enemys.RemoveAt(emptyIndex[i] - i);//移除一个元素，索引会减少1，Count会减小。
        }
    }
}

看不到物体，因为，父物体的缩放比例不一致导致的，

拖到最里面，Reset一下，拖出来，保存Prefab即可。

MapCube.cs

using UnityEngine;
using UnityEngine.EventSystems;

public class MapCube : MonoBehaviour
{
    [HideInInspector]
    public GameObject turretGo; //保存当前Cube身上的炮台
    private TurretData turretData;
    [HideInInspector]
    public bool isUpgraded = false;

    public GameObject buildEffect;

    private Renderer renderer;

    private void Start()
    {
        renderer = GetComponent<Renderer>();
    }

    public void BuildTurret(TurretData turretData)
    {
        this.turretData = turretData;
        isUpgraded = false;
        turretGo = GameObject.Instantiate(turretData.turretPrefab, transform.position, Quaternion.identity);
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.5f);
    }

    public void UpgradeTurret()
    {
        if (isUpgraded == true) return;
        Destroy(turretGo);
        isUpgraded = true;
        turretGo = GameObject.Instantiate(turretData.turretUpgradePrefab, transform.position, Quaternion.identity);
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.5f);
    }

    public void DestroyTurret()
    {
        Destroy(turretGo);
        isUpgraded = false;
        turretGo = null;
        turretData = null;
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.5f);
    }

    private void OnMouseEnter()
    {
        if (turretGo == null && EventSystem.current.IsPointerOverGameObject() == false)
        {
            renderer.material.color = Color.red;
        }
    }

    private void OnMouseExit()
    {
        renderer.material.color = Color.white;
    }
}

MapCube.cs

using UnityEngine;
using UnityEngine.EventSystems;

public class MapCube : MonoBehaviour
{
    [HideInInspector]
    public GameObject turretGo; //保存当前Cube身上的炮台
    private TurretData turretData;
    [HideInInspector]
    public bool isUpgraded = false;

    public GameObject buildEffect;

    private Renderer renderer;

    private void Start()
    {
        renderer = GetComponent<Renderer>();
    }

    public void BuildTurret(TurretData turretData)
    {
        this.turretData = turretData;
        isUpgraded = false;
        turretGo = GameObject.Instantiate(turretData.turretPrefab, transform.position, Quaternion.identity);
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.0f);
    }

    public void UpgradeTurret()
    {
        if (isUpgraded == true) return;
        Destroy(turretGo);
        isUpgraded = true;
        turretGo = GameObject.Instantiate(turretData.turretUpgradePrefab, transform.position, Quaternion.identity);
    }

    public void DestroyTurret()
    {
        Destroy(turretGo);
        isUpgraded = false;
        turretGo = null;
        turretData = null;
    }

    private void OnMouseEnter()
    {
        if (turretGo == null && EventSystem.current.IsPointerOverGameObject() == false)
        {
            renderer.material.color = Color.red;
        }
    }

    private void OnMouseExit()
    {
        renderer.material.color = Color.white;
    }
}

MapCube.cs

using UnityEngine;
using UnityEngine.EventSystems;

public class MapCube : MonoBehaviour
{
    [HideInInspector]
    public GameObject turretGo; //保存当前Cube身上的炮台
    private TurretData turretData;
    [HideInInspector]
    public bool isUpgraded = false;

    public GameObject buildEffect;

    private Renderer renderer;

    private void Start()
    {
        renderer = GetComponent<Renderer>();
    }

    public void BuildTurret(TurretData turretData)
    {
        this.turretData = turretData;
        isUpgraded = false;
        turretGo = GameObject.Instantiate(turretData.turretPrefab, transform.position, Quaternion.identity);
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.0f);
    }

    public void UpgradeTurret()
    {

    }

    public void DestroyTurret()
    {

    }

    private void OnMouseEnter()
    {
        if (turretGo == null && EventSystem.current.IsPointerOverGameObject() == false)
        {
            renderer.material.color = Color.red;
        }
    }

    private void OnMouseExit()
    {
        renderer.material.color = Color.white;
    }
}

BuildManager.cs

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections;

public class BuildManager : MonoBehaviour
{
    public TurretData laserTurretData;
    public TurretData missileTurretData;
    public TurretData standardTurretData;

    //表示当前选择的炮台（要建造的炮台）
    private TurretData selectedTurretData;
    //表示当前选择的炮台（场景中的游戏物体）
    private MapCube selectedMapCube;

    public Text moneyText;

    public Animator moneyAnimator;

    private int money = 1000;

    public GameObject upgradeCanvas;

    private Animator upgradeCanvasAnimator;

    public Button buttonUpgrade;

    void ChangeMoney(int change = 0)
    {
        money += change;
        moneyText.text = "￥" + money;
    }

    private void Start()
    {
        upgradeCanvasAnimator = upgradeCanvas.GetComponent<Animator>();
    }

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            if (EventSystem.current.IsPointerOverGameObject() == false)
            {
                //开发炮台的建造
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                bool isCollider = Physics.Raycast(ray, out hit, 1000, LayerMask.GetMask("MapCube"));
                if (isCollider)
                {
                    MapCube mapCube = hit.collider.gameObject.GetComponent<MapCube>();//得到点击的mapCube
                    if (selectedTurretData != null && mapCube.turretGo == null)
                    {
                        //可以创建
                        if (money > selectedTurretData.cost)
                        {
                            ChangeMoney(-selectedTurretData.cost);
                            mapCube.BuildTurret(selectedTurretData);
                        }
                        else
                        {
                            //提示钱不够
                            moneyAnimator.SetTrigger("Flicker");
                        }
                    }
                    else if (mapCube.turretGo != null)
                    {
                        //TODO 升级处理

                        //if(mapCube.isUpgraded)
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, true);
                        //}
                        //else
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, false);
                        //}
                        if (mapCube == selectedMapCube && upgradeCanvas.activeInHierarchy)
                        {
                            StartCoroutine(HideUpgradeUI());
                        }
                        else
                        {
                            ShowUpgradeUI(mapCube.transform.position, mapCube.isUpgraded);
                        }
                        selectedMapCube = mapCube;
                    }
                }
            }
        }
    }

    public void OnLaserSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = laserTurretData;
        }
    }

    public void OnMissileSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = missileTurretData;
        }
    }

    public void OnStandardSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = standardTurretData;
        }
    }

    private void ShowUpgradeUI(Vector3 pos, bool isDisableUpgrade = false)
    {
        StopCoroutine("HideUpgradeUI");
        upgradeCanvas.SetActive(false);
        upgradeCanvas.SetActive(true);
        upgradeCanvas.transform.position = pos;
        buttonUpgrade.interactable = !isDisableUpgrade;
    }

    IEnumerator HideUpgradeUI()
    {
        upgradeCanvasAnimator.SetTrigger("Hide");
        //upgradeCanvas.SetActive(false);
        yield return new WaitForSeconds(0.8f);
        upgradeCanvas.SetActive(false);
    }

    public void OnUpgradeButtonDown()
    {
        selectedMapCube.UpgradeTurret();
        StartCoroutine(HideUpgradeUI());
    }

    public void OnDestroyButtonDown()
    {
        selectedMapCube.DestroyTurret();
        StartCoroutine(HideUpgradeUI());
    }
}

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;
using System.Collections;

public class BuildManager : MonoBehaviour
{
    public TurretData laserTurretData;
    public TurretData missileTurretData;
    public TurretData standardTurretData;

    //表示当前选择的炮台（要建造的炮台）
    private TurretData selectedTurretData;
    //表示当前选择的炮台（场景中的游戏物体）
    private GameObject selectedTurretGo;

    public Text moneyText;

    public Animator moneyAnimator;

    private int money = 1000;

    public GameObject upgradeCanvas;

    private Animator upgradeCanvasAnimator;

    public Button buttonUpgrade;

    void ChangeMoney(int change = 0)
    {
        money += change;
        moneyText.text = "￥" + money;
    }

    private void Start()
    {
        upgradeCanvasAnimator = upgradeCanvas.GetComponent<Animator>();
    }

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            if (EventSystem.current.IsPointerOverGameObject() == false)
            {
                //开发炮台的建造
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                bool isCollider = Physics.Raycast(ray, out hit, 1000, LayerMask.GetMask("MapCube"));
                if (isCollider)
                {
                    MapCube mapCube = hit.collider.gameObject.GetComponent<MapCube>();//得到点击的mapCube
                    if (selectedTurretData != null && mapCube.turretGo == null)
                    {
                        //可以创建
                        if (money > selectedTurretData.cost)
                        {
                            ChangeMoney(-selectedTurretData.cost);
                            mapCube.BuildTurret(selectedTurretData.turretPrefab);
                        }
                        else
                        {
                            //TODO 提示钱不够
                            moneyAnimator.SetTrigger("Flicker");
                        }
                    }
                    else if (mapCube.turretGo != null)
                    {
                        //TODO 升级处理

                        //if(mapCube.isUpgraded)
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, true);
                        //}
                        //else
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, false);
                        //}
                        if (mapCube.turretGo == selectedTurretGo && upgradeCanvas.activeInHierarchy)
                        {
                            StartCoroutine(HideUpgradeUI());
                        }
                        else
                        {
                            ShowUpgradeUI(mapCube.transform.position, mapCube.isUpgraded);
                        }
                        selectedTurretGo = mapCube.turretGo;
                    }
                }
            }
        }
    }

    public void OnLaserSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = laserTurretData;
        }
    }

    public void OnMissileSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = missileTurretData;
        }
    }

    public void OnStandardSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = standardTurretData;
        }
    }

    private void ShowUpgradeUI(Vector3 pos, bool isDisableUpgrade = false)
    {
        StopCoroutine("HideUpgradeUI");
        upgradeCanvas.SetActive(false);
        upgradeCanvas.SetActive(true);
        upgradeCanvas.transform.position = pos;
        buttonUpgrade.interactable = !isDisableUpgrade;
    }

    IEnumerator HideUpgradeUI()
    {
        upgradeCanvasAnimator.SetTrigger("Hide");
        //upgradeCanvas.SetActive(false);
        yield return new WaitForSeconds(0.8f);
        upgradeCanvas.SetActive(false);
    }

    public void OnUpgradeButtonDown()
    {
        //TODO
    }

    public void OnDestroyButtonDown()
    {
        //TODO
    }
}

MapCube.cs

using UnityEngine;
using UnityEngine.EventSystems;

public class MapCube : MonoBehaviour
{
    [HideInInspector]
    public GameObject turretGo; //保存当前Cube身上的炮台
    [HideInInspector]
    public bool isUpgraded = false;

    public GameObject buildEffect;

    private Renderer renderer;

    private void Start()
    {
        renderer = GetComponent<Renderer>();
    }

    public void BuildTurret(GameObject turretPrefab)
    {
        isUpgraded = false;
        turretGo = GameObject.Instantiate(turretPrefab, transform.position, Quaternion.identity);
        GameObject effect = GameObject.Instantiate(buildEffect, transform.position, Quaternion.identity);
        Destroy(effect, 1.0f);
    }

    private void OnMouseEnter()
    {
        if (turretGo == null && EventSystem.current.IsPointerOverGameObject() == false)
        {
            renderer.material.color = Color.red;
        }
    }

    private void OnMouseExit()
    {
        renderer.material.color = Color.white;
    }
}

BuildManager.cs

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;

public class BuildManager : MonoBehaviour
{
    public TurretData laserTurretData;
    public TurretData missileTurretData;
    public TurretData standardTurretData;

    //表示当前选择的炮台（要建造的炮台）
    private TurretData selectedTurretData;
    //表示当前选择的炮台（场景中的游戏物体）
    private GameObject selectedTurretGo;

    public Text moneyText;

    public Animator moneyAnimator;

    private int money = 1000;

    public GameObject upgradeCanvas;

    public Button buttonUpgrade;

    void ChangeMoney(int change = 0)
    {
        money += change;
        moneyText.text = "￥" + money;
    }

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            if (EventSystem.current.IsPointerOverGameObject() == false)
            {
                //开发炮台的建造
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                bool isCollider = Physics.Raycast(ray, out hit, 1000, LayerMask.GetMask("MapCube"));
                if (isCollider)
                {
                    MapCube mapCube = hit.collider.gameObject.GetComponent<MapCube>();//得到点击的mapCube
                    if (selectedTurretData != null && mapCube.turretGo == null)
                    {
                        //可以创建
                        if (money > selectedTurretData.cost)
                        {
                            ChangeMoney(-selectedTurretData.cost);
                            mapCube.BuildTurret(selectedTurretData.turretPrefab);
                        }
                        else
                        {
                            //TODO 提示钱不够
                            moneyAnimator.SetTrigger("Flicker");
                        }
                    }
                    else if (mapCube.turretGo != null)
                    {
                        //TODO 升级处理
                        
                        //if(mapCube.isUpgraded)
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, true);
                        //}
                        //else
                        //{
                        //    ShowUpgradeUI(mapCube.transform.position, false);
                        //}
                        if(mapCube.turretGo == selectedTurretGo && upgradeCanvas.activeInHierarchy)
                        {
                            HideUpgradeUI();
                        }
                        else
                        {
                            ShowUpgradeUI(mapCube.transform.position, mapCube.isUpgraded);
                        }
                        selectedTurretGo = mapCube.turretGo;
                    }
                }
            }
        }
    }

    public void OnLaserSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = laserTurretData;
        }
    }

    public void OnMissileSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = missileTurretData;
        }
    }

    public void OnStandardSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = standardTurretData;
        }
    }

    private void ShowUpgradeUI(Vector3 pos, bool isDisableUpgrade = false)
    {
        upgradeCanvas.SetActive(true);
        upgradeCanvas.transform.position = pos;
        buttonUpgrade.interactable = !isDisableUpgrade;
    }

    private void HideUpgradeUI()
    {
        upgradeCanvas.SetActive(false);
    }

    public void OnUpgradeButtonDown()
    {
        //TODO
    }

    public void OnDestroyButtonDown()
    {
        //TODO
    }
}

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.EventSystems;

public class BuildManager : MonoBehaviour
{
    public TurretData laserTurretData;
    public TurretData missileTurretData;
    public TurretData standardTurretData;

    //表示当前选择的炮台（要建造的炮台）
    private TurretData selectedTurretData;

    public Text moneyText;

    public Animator moneyAnimator;

    private int money = 1000;

    public GameObject upgradeCanvas;

    public Button buttonUpgrade;

    void ChangeMoney(int change = 0)
    {
        money += change;
        moneyText.text = "￥" + money;
    }

    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            if (EventSystem.current.IsPointerOverGameObject() == false)
            {
                //开发炮台的建造
                Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                RaycastHit hit;
                bool isCollider = Physics.Raycast(ray, out hit, 1000, LayerMask.GetMask("MapCube"));
                if (isCollider)
                {
                    MapCube mapCube = hit.collider.gameObject.GetComponent<MapCube>();//得到点击的mapCube
                    if (selectedTurretData != null && mapCube.turrerGo == null)
                    {
                        //可以创建
                        if (money > selectedTurretData.cost)
                        {
                            ChangeMoney(-selectedTurretData.cost);
                            mapCube.BuildTurret(selectedTurretData.turretPrefab);
                        }
                        else
                        {
                            //TODO 提示钱不够
                            moneyAnimator.SetTrigger("Flicker");
                        }
                    }
                    else if (mapCube.turrerGo != null)
                    {
                        //TODO 升级处理
                    }
                }
            }
        }
    }

    public void OnLaserSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = laserTurretData;
        }
    }

    public void OnMissileSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = missileTurretData;
        }
    }

    public void OnStandardSelected(bool isOn)
    {
        if (isOn)
        {
            selectedTurretData = standardTurretData;
        }
    }

    private void ShowUpgradeUI(Vector3 pos, bool isDisableUpgrade = false)
    {
        upgradeCanvas.SetActive(true);
        upgradeCanvas.transform.position = pos;
        buttonUpgrade.interactable = !isDisableUpgrade;
    }

    private void HideUpgradeUI()
    {
        upgradeCanvas.SetActive(false);
    }

    public void OnUpgradeButtonDown()
    {
        //TODO
    }

    public void OnDestroyButtonDown()
    {
        //TODO
    }
}

按住Alt键，拖动UI，中心固定拖动。

增大字体，调整范围显示，缩小Scale。使得字体显示更清楚。

Button Transition：Animation，动画渐变。

Auto Generate Animation。自动生成4个动画。

Animation下的四种状态。Normal、Highlighted、Pressed、Disabled。

Button下Interactable 取消打勾就是Disabled状态。【最顶级不可升级，拆 都可以】

using System.Collections; using System.Collections.Generic; using UnityEngine; public class Enemy : MonoBehaviour{ //Use this for initialization void Start(){ } //Update is called once per frame void Update(){ }

血条Slider，不需要交互，取消勾选 Interactable。

Canvas---Render Mode---世界空间World Space。

血条不要Slider的Handle，删除。

【血条Slider制作：①Fill的Rect Transform的Left、Top、Pos Z、Right 和 Bottom都为0。②Fill Area的Rect Transform的Left，Right、Top、Bottom、Pos Z都为0。】（我的想法）

这样显示的血条不会多出一点空白没有填充。也不会没血了显示一点点。

把世界坐标的UI拖到物体上，显示差距太大，需要调节Canvas的Scale。

using UnityEngine;
using UnityEngine.UI;

public class Enemy : MonoBehaviour
{
    public float speed = 10.0f;
    public int hp = 150;
    private int totalHp;
    public GameObject explosionEffect;
    private Slider hpSlider;
    private Transform[] positions;
    private int index = 0;

    void Start()
    {
        positions = Waypoints.positions;
        totalHp = hp;
        hpSlider = GetComponentInChildren<Slider>();
    }

    void Update()
    {
        Move();
    }

    private void Move()
    {
        if (index > positions.Length - 1) return;
        transform.Translate((positions[index].position - transform.position).normalized * speed * Time.deltaTime);
        if (Vector3.Distance(positions[index].position, transform.position) < 0.2f)
        {
            index++;
        }
        if (index > positions.Length - 1)
        {
            ReachDestination();
        }
    }

    private void ReachDestination()
    {
        GameObject.Destroy(this.gameObject);
    }

    private void OnDestroy()
    {
        EnemySpawner.CountEnemyAlive--;
    }

    public void TakeDamage(int damage)
    {
        if (hp <= 0) return;//如果当前敌人hp小于0，死了不作处理
        hp -= damage;
        hpSlider.value = (float)hp / totalHp;
        if (hp <= 0)
        {
            Die();
        }
    }

    private void Die()
    {
        GameObject effect = GameObject.Instantiate(explosionEffect, transform.position, transform.rotation);
        Destroy(effect, 1.5f);
        Destroy(this.gameObject);
    }
}