[Unity Demo]从零开始制作空洞骑士Hollow Knight第二十一集：制作游戏的金钱系统吉欧Geo和初步制作HUD Canvas的额外内容

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文章目录

• 前言
• 一、制作游戏的金钱系统吉欧Geo以及HUD Camera
  • 1.制作金钱系统吉欧
  • 2.制作吉欧的脚本Geo Counter逻辑处理
  • 3.制作HUD Canvas的吉欧的UI
  • 4.在敌人的HealthManager.cs脚本中添加上吉欧的逻辑处理
• 二、制作HUD Canvas的初始的额外内容
• 总结

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前言

        hello大家好久没见，之所以隔了这么久才更新并不是因为我又放弃了这个项目，而是接下来要制作的工作太忙碌了，每次我都花了很长的时间解决完一个部分，然后就没力气打开CSDN写文章就直接睡觉去了，而且还有就是我上一期写了一万字的内容结果系统出BUG给我没保存直接气晕了，现在刚刚醒来终于有时间整理下我新制作的内容了，还有就是感谢兄弟们的评论支持，看到你的评论我决定还是接着制作这个系列的内容。

        那么，这个HUD是什么意思呢？百度翻译就是平行显示系统，一般用于车辆上面的某个系统，但它也可以作为了一个专业的游戏术语，显示与摄像机平行的东西，如果你还没理解的话，我就直接上图吧：就是这些不会随着摄像机移动而相对移动的物品，这些看似是UI来实现的也可以使用摄像机的功能来实现：

        然后这一期我们来制作金钱系统吉欧Geo和初步制作HUD Canvas的额外内容

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一、制作游戏的金钱系统吉欧Geo以及HUD Camera

1.制作金钱系统吉欧Geo

        为了贴近游戏一点，我们就不称金钱系统了，直接就叫吉欧得了，然后它的英文名叫Geo，阅读这篇文章先要注意一下这点。

        OK我们先来制作tk2dSprtite和tk2dspriteAnimator：先把素材导入吧

接下来是制作动画，这里需要注意名字不要打错，一会脚本还要用：

2.制作吉欧的脚本Geo Counter逻辑处理

        创建一个新的游戏对象就叫Geo Small，然后就是经典四件套组件：

 先来讲讲它的子对象Bug，这个就是那个捡钱的护符，当我们暂时还用不到，创建好先放一边了：

接下来这个子对象Acid Steam的粒子系统就是当钱掉进水里后的粒子系统：

接下来来看看脚本Geo Control.cs：游戏中三种面值的Geo，分别small,med,large,它们代表的面值分别是1,5,25。

using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;public class GeoControl : MonoBehaviour
{public Size[] sizes = new Size[]{new Size("Small Idle", "Small Air", 1),new Size("Med Idle", "Med Air", 5),new Size("Large Idle", "Large Air", 25)};public int type;private Size size;[Space]public AudioClip[] pickupSounds;[Space]public ParticleSystem acidEffect;public GameObject getterBug;private Coroutine getterRoutine;private HeroController hero;private Transform player;private bool activated;private bool attracted; //是否触发捡钱吸入到玩家上private const float pickupStartDelay = 0.25f;private float pickupStartTime;private float defaultGravity;private tk2dSpriteAnimator anim;private AudioSource audioSource;private Renderer rend;private Rigidbody2D body;private BoxCollider2D boxCollider;private SpriteFlash spriteFlash;private void Awake(){anim = GetComponent<tk2dSpriteAnimator>();audioSource = GetComponent<AudioSource>();rend = GetComponent<Renderer>();body = GetComponent<Rigidbody2D>();boxCollider = GetComponent<BoxCollider2D>();spriteFlash = GetComponent<SpriteFlash>();defaultGravity = body.gravityScale;}private void Start(){hero = HeroController.instance;}private void OnEnable(){SetSize(type);transform.SetPositionZ(UnityEngine.Random.Range(0.001f, 0.002f));activated = false;attracted = false;body.gravityScale = defaultGravity;if (rend){rend.enabled = true;}if (getterBug){getterBug.SetActive(false);}if (acidEffect){acidEffect.gameObject.SetActive(false);}boxCollider.isTrigger = false;if (GameManager.instance.sceneName == "Crossroads_38"){return;}
//判断玩家是否装备了捡钱的护符if (GameManager.instance.GetPlayerDataBool("equippedCharm_1")){getterRoutine = StartCoroutine(Getter());}pickupStartTime = Time.time + pickupStartDelay;}private void FixedUpdate(){if (attracted){Vector2 vector = new Vector2(hero.transform.position.x - transform.position.x, hero.transform.position.y - 0.5f - transform.position.y);vector = Vector2.ClampMagnitude(vector, 1f);vector = new Vector2(vector.x * 150f, vector.y * 150f);body.AddForce(vector);Vector2 vector2 = body.velocity;vector2 = Vector2.ClampMagnitude(vector2, 20f);body.velocity = vector2;}}private void SetSize(int index){if (index >= sizes.Length){index = sizes.Length - 1;}else if (index < 0){index = 0;}size = sizes[index];if (anim){anim.Play(size.airAnim);}}private IEnumerator Getter(){yield return new WaitForSeconds(UnityEngine.Random.Range(1f, 1.7f));if (getterBug){//插值执行捡钱虫子开始时淡入淡出效果getterBug.SetActive(true);Vector3 destination = new Vector3(-0.06624349f, 0.1932119f, -0.001f);Vector3 source = destination + new Vector3(UnityEngine.Random.Range(-1f, 1f), UnityEngine.Random.Range(0.5f, 1.5f), 0f);float easeTime = UnityEngine.Random.Range(0.3f, 0.5f);for (float timer = 0f; timer < easeTime; timer += Time.deltaTime){float t = Mathf.Sin(timer / easeTime * 1.5707964f);getterBug.transform.localPosition = Vector3.Lerp(source, destination, t);yield return null;}getterBug.transform.localPosition = destination;boxCollider.isTrigger = true;body.gravityScale = 0f;attracted = true; //然后激活attracted让虫子和钱朝着玩家的方向移动destination = default(Vector3);source = default(Vector3);}}/// <summary>/// 当吉欧碰到地面上/// </summary>/// <param name="collision"></param>private void OnCollisionEnter2D(Collision2D collision){if (anim){tk2dSpriteAnimationClip clipByName = anim.GetClipByName(size.idleAnim);if(clipByName != null){anim.PlayFromFrame(clipByName, UnityEngine.Random.Range(0, clipByName.frames.Length));}}}private void OnTriggerEnter2D(Collider2D collision){if (activated || Time.time < pickupStartTime){return;}bool flag = false;float num = 0f;if(collision.tag == "HeroBox") //如果碰到玩家了就加钱{Debug.LogFormat("size.value = " + size.value);hero.AddGeo(size.value);num = Mathf.Max(num, PlayCollectSound());flag = true;}else if (collision.tag == "Acid") //如果掉到酸水里了就播放特效{if (acidEffect){acidEffect.gameObject.SetActive(true);num = Mathf.Max(num, acidEffect.main.duration + acidEffect.main.startLifetime.constant);}flag = true;}if (flag) //暂停捡钱的虫子的routine，销毁该物体{if (getterRoutine != null){StopCoroutine(getterRoutine);}Disable(num);}}/// <summary>/// 获取随机一个音频的播放时间/// </summary>/// <returns></returns>private float PlayCollectSound(){if (audioSource && pickupSounds.Length != 0){AudioClip audioClip = pickupSounds[UnityEngine.Random.Range(0, pickupSounds.Length)];if (audioClip){audioSource.PlayOneShot(audioClip);return audioClip.length;}Debug.LogError("GeoControl encountered missing audio!", this);}return 0f;}/// <summary>/// 关闭捡钱和自身的renderer/// </summary>/// <param name="waitTime"></param>private void Disable(float waitTime){activated = true;if (rend){rend.enabled = false;}if (getterBug){getterBug.SetActive(false);}StartCoroutine(DisableAfterTime(waitTime));}private IEnumerator DisableAfterTime(float waitTime){yield return new WaitForSeconds(waitTime);gameObject.Recycle();}public void SetFlashing(){if (spriteFlash){spriteFlash.GeoFlash();}}[Serializable]public struct Size{public string idleAnim;public string airAnim;public int value;public Size(string idleAnim, string airAnim, int value){this.idleAnim = idleAnim;this.airAnim = airAnim;this.value = value;}}
}

然后我们来制作三个面值的吉欧，首先是最小的small，它的type设置为0，注意动画名字的tk2dspriteanimator保持一致，

然后是5块钱面值的中型吉欧，记得改下碰撞箱的大小和type类型

 

最后是最大面值的吉欧。 

回到HeroController.cs中，创建新的方法：

  public void AddGeo(int amount){playerData.AddGeo(amount);geoCounter.AddGeo(amount);}public void AddGeoQuietly(int amount){playerData.AddGeo(amount);}public void ToZero(){geoCounter.ToZero();}public void AddGeoToCounter(int amount){geoCounter.AddGeo(amount);}public void TakeGeo(int amount){playerData.TakeGeo(amount);geoCounter.TakeGeo(amount);}public void UpdateGeo(){geoCounter.UpdateGeo();}

先看PlayerData.cs这边：说白了我们就是存储了两个int类型和一个bool类型，并打算在HUD屏幕上显示我们拥有的Geo数量。

    public int geo; //玩家拥有的吉欧public int geoPool; //玩家死后存储死前拥有的吉欧public bool firstGeo; //是否是得到的第一块钱public void AddGeo(int amount){geo += amount;if (geo > 9999999){geo = 9999999;}}public void TakeGeo(int amount){geo -= amount;}

那么这个脚本GeoCounter.cs是什么呢？自然就是我们下一部分的内容HUD Canvas上的吉欧的UI!

3.制作HUD Canvas的吉欧的UI

在HUD Canvas下，我们创建一个新的对象Geo Counter：

它只有几个子对象，首先是吉欧的图标Geo Sprite：

先来讲讲它的两个playmakerFSM 

这个playmakerFSM 上几期都讲过了就不浪费时间了。

再来看看另一个playmakerFSM：Geo Sprite，先添加上事件和变量

第一个状态就是初始化，先记录自己一开始的位置，判断是否是firstGeo，

如果是的话，就进入First Geo Uncollected状态，获取自己的父对象，以及对对象Geo Text发送事件DOWN，

然后设置playerdata的bool变量：firstGeo为true，播放动画Coin Appear，向Geo Text发送事件UP  

回到Init状态，如果不是，我们就来判断是否完成初始化，还有是否是第一次游玩游戏isFirstGame，这个我们在上一期讲生命的时候也提到过。

如果没有完成初始化或者是第一次游玩游戏，那么就进入pause状态：初始化变量以及向geo text发送事件DOWN INSTANT，等个4秒进入下一个状态：

这个和First Get状态的内容差不多： 

来到Idle状态，设置自身回到初始位置，播放动画Coin Get，开启自身renderer。 

它身上有两个事件都是通过脚本GeoCotontrol.cs来发送的，所以我们先看看其它状态，如果发送TAKE事件进入take状态：

花钱了话就通过行为Object Jitter.cs来进行丝滑的移动动画

using UnityEngine;namespace HutongGames.PlayMaker.Actions
{[ActionCategory(ActionCategory.Transform)][Tooltip("Jitter an object around using its Transform.")]public class ObjectJitter : RigidBody2dActionBase{[RequiredField][Tooltip("The game object to translate.")]public FsmOwnerDefault gameObject;[Tooltip("Jitter along x axis.")]public FsmFloat x;[Tooltip("Jitter along y axis.")]public FsmFloat y;[Tooltip("Jitter along z axis.")]public FsmFloat z;[Tooltip("If true, don't jitter around start pos")]public FsmBool allowMovement;private float startX;private float startY;private float startZ;public override void Reset(){gameObject = null;x = new FsmFloat{UseVariable = true};y = new FsmFloat{UseVariable = true};z = new FsmFloat{UseVariable = true};}public override void OnPreprocess(){Fsm.HandleFixedUpdate = true;}public override void OnEnter(){GameObject ownerDefaultTarget = base.Fsm.GetOwnerDefaultTarget(gameObject);if (ownerDefaultTarget == null){return;}startX = ownerDefaultTarget.transform.position.x;startY = ownerDefaultTarget.transform.position.y;startZ = ownerDefaultTarget.transform.position.z;}public override void OnFixedUpdate(){DoTranslate();}private void DoTranslate(){GameObject ownerDefaultTarget = Fsm.GetOwnerDefaultTarget(gameObject);if (ownerDefaultTarget == null){return;}if (allowMovement.Value){ownerDefaultTarget.transform.Translate(Random.Range(-x.Value, x.Value), Random.Range(-y.Value, y.Value), Random.Range(-z.Value, z.Value));return;}Vector3 position = new Vector3(startX + Random.Range(-x.Value, x.Value), startY + Random.Range(-y.Value, y.Value), startZ + Random.Range(-z.Value, z.Value));ownerDefaultTarget.transform.position = position;}}
}

using UnityEngine;namespace HutongGames.PlayMaker.Actions
{[ActionCategory(ActionCategory.Transform)][Tooltip("Jitter an object around using its Transform.")]public class ObjectJitterLocal : FsmStateAction{[RequiredField][Tooltip("The game object to translate.")]public FsmOwnerDefault gameObject;[Tooltip("Jitter along x axis.")]public FsmFloat x;[Tooltip("Jitter along y axis.")]public FsmFloat y;[Tooltip("Jitter along z axis.")]public FsmFloat z;private float startX;private float startY;private float startZ;public override void Reset(){gameObject = null;x = new FsmFloat{UseVariable = true};y = new FsmFloat{UseVariable = true};z = new FsmFloat{UseVariable = true};}public override void OnPreprocess(){Fsm.HandleFixedUpdate = true;}public override void OnEnter(){GameObject ownerDefaultTarget = Fsm.GetOwnerDefaultTarget(gameObject);if (ownerDefaultTarget == null){return;}startX = ownerDefaultTarget.transform.localPosition.x;startY = ownerDefaultTarget.transform.localPosition.y;startZ = ownerDefaultTarget.transform.localPosition.z;}public override void OnFixedUpdate(){DoTranslate();}private void DoTranslate(){GameObject ownerDefaultTarget = Fsm.GetOwnerDefaultTarget(gameObject);if (ownerDefaultTarget == null){return;}Vector3 localPosition = new Vector3(startX + Random.Range(-x.Value, x.Value), startY + Random.Range(-y.Value, y.Value), startZ + Random.Range(-z.Value, z.Value));ownerDefaultTarget.transform.localPosition = localPosition;}}
}

 当关卡变换的时候就会发送LEVEL LOADED事件，这里我不知道我前面讲过没，还有就是IDLE事件也是Geo Control.cs发送的。

接下来这两个事件都是会在玩家死亡后发送的，所以当我讲到那一期的时候就会用到这两个事件：

然后TO ZERO事件作为一个全球传送Global Transition发送到Lose状态，

SHATTER事件也是作为一个全球传送Global Transition发送到Shatter状态

关闭掉自身的renderer的同时发送Geo Text的DOWN事件 

当进入新的关卡，也就是回到复活场景的时候，发geo text的UP事件 

来到另一个子对象Geo Text，这里我们用的组件是Text Mesh:注意设置好Material类型，还有字体大小Font Size,它的playmakerFSM也是color_fader,之前讲过了就不谈了直接复制粘贴就完事了

另一个子对象就是Add Text，说明白了就是加钱的效果，它也有个text mesh，然后它的playmakerFSM也是很简单： 

Down状态就是用Ease渐变的方式设置material的color和它的alpha值为0 

 UP状态就是完全反过来。

最后一个Subtract Text就是花钱的效果动画，和上面同理这里就不多bb了

 回到父对象Geo Counter来，我还漏了一个忘了讲，就是设置一个playmaker的全球变量Geo Counter，然后新建一个playmakerFSM让全球变冷指向自己：

最后我们终于可以讲讲传说中的脚本GeoCounter.cs了：这段代码有点难理解，我这里简单解释一下吧，首先增加吉欧和减少吉欧都分为两个int类型的阶段表示，分别是addRollerState和takeRollerState，当它们的state为0的时候就什么都不做，当state为1的时候就延迟准备进入各自的动画逻辑处理状态，当state为2的时候进入逻辑处理状态，播放动画，发送事件，更改textmesh的text等等。。。然后我们在第一部分讲到AddGeo和TakeGeo都是切换不同的状态以及更改changePerTick的值。

using System;
using UnityEngine;public class GeoCounter : MonoBehaviour
{private const float ROLLER_START_PAUSE = 1.5f;private const float DIGIT_CHANGE_TIME = 0.025f;[HideInInspector]public PlayerData playerData;public GameObject geoSprite;public TextMesh geoTextMesh;public TextMesh subTextMesh;public TextMesh addTextMesh;private PlayMakerFSM geoSpriteFsm;private PlayMakerFSM addTextFsm;private PlayMakerFSM subTextFsm;private int counterCurrent; //当前拥有的吉欧private int geoChange; //需要改变的geo数量private int addCounter;//需要增加的吉欧的计数器private int takeCounter;//需要减少的吉欧的计数器private int addRollerState; //增加吉欧的动画的阶段private int takeRollerState;//减少吉欧的动画的阶段private int changePerTick; //每次执行tick动画减少的吉欧数量private float addRollerStartTimer; //开始增加吉欧前的计时器private float takeRollerStartTimer;//开始减少吉欧前的计时器private float digitChangeTimer; //每次当这个变量digitChangeTimer小于0的时候就播放一次加钱的动画private bool toZero; //将吉欧归零private void Awake(){geoSpriteFsm = FSMUtility.GetFSM(geoSprite);subTextFsm = FSMUtility.GetFSM(subTextMesh.gameObject);addTextFsm = FSMUtility.GetFSM(addTextMesh.gameObject);}private void Start(){playerData = PlayerData.instance;counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();}private void Update(){if (toZero){if(digitChangeTimer >= 0f){digitChangeTimer -= Time.deltaTime;return;}if(counterCurrent > 0){counterCurrent += changePerTick;if (counterCurrent <= 0){counterCurrent = 0;geoSpriteFsm.SendEvent("SHATTER");toZero = false;}geoTextMesh.text = counterCurrent.ToString();digitChangeTimer += DIGIT_CHANGE_TIME;return;}}else{if (addRollerState == 1) //延迟进入吉欧增加的状态{if (addRollerStartTimer > 0f){addRollerStartTimer -= Time.deltaTime;}else{addRollerState = 2;}}if (addRollerState == 2 && addCounter > 0) //进入吉欧增加的动画，切要保证增加的吉欧数量大于0{geoSpriteFsm.SendEvent("GET");if (digitChangeTimer < 0f){addCounter -= changePerTick;//这里的changePerTick应该是正数，最小不小于-1counterCurrent += changePerTick;geoTextMesh.text = counterCurrent.ToString();if (addTextMesh != null){addTextMesh.text = "+ " + addCounter.ToString();}if (addCounter <= 0)//如果累计增加的addCounter小于等于0以后，就说明状态执行完毕已完成整个增加吉欧的行为，就回到addRollerState = 0状态{geoSpriteFsm.SendEvent("IDLE");addCounter = 0;addTextMesh.text = "+ 0";addRollerState = 0;counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();addTextFsm.SendEvent("DOWN");}digitChangeTimer += DIGIT_CHANGE_TIME;}else{digitChangeTimer -= Time.deltaTime;}}if (takeRollerState == 1)//延迟进入吉欧减少的状态{if (takeRollerStartTimer > 0f){takeRollerStartTimer -= Time.deltaTime;}else{takeRollerState = 2;}}if (takeRollerState == 2 && takeCounter < 0)//进入吉欧减少的动画状态，切要保证减少的吉欧数量大于0{geoSpriteFsm.SendEvent("TAKE"); //向geoSpriteFsm发送事件TAKEif (digitChangeTimer < 0f) //每一次digitChangeTimer的时间小于0的时候就改变changePerTick数量的takeCounter和counterCurrent{takeCounter -= changePerTick; //这里的changePerTick应该是负数，最多不大于-1counterCurrent += changePerTick;geoTextMesh.text = counterCurrent.ToString();if (subTextMesh != null){subTextMesh.text = "- " + (-takeCounter).ToString();}if (takeCounter >= 0) //如果累计减少的takeCounter大于等于0以后，就说明状态执行完毕已完成整个减少吉欧的行为，就回到takeRollerState = 0状态{geoSpriteFsm.SendEvent("IDLE");takeCounter = 0;subTextMesh.text = "- 0";takeRollerState = 0;counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();subTextFsm.SendEvent("DOWN");}digitChangeTimer += DIGIT_CHANGE_TIME;return;}digitChangeTimer -= Time.deltaTime;}}}public void UpdateGeo(){}/// <summary>/// 该函数在playmakerFSM的LEVEL LOADED事件接收者Reset Coutner状态调用，用于场景切换/// </summary>public void NewSceneRefresh(){counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();toZero = false;takeRollerState = 0;addRollerState = 0;}//以下都是在HeroController.cs代码中被调用，顾名思义的都是public void AddGeo(int geo){geoSpriteFsm.SendEvent("CHECK FIRST");if(takeRollerState > 0){geoChange = geo;addCounter = geoChange;takeRollerState = 0;geoSpriteFsm.SendEvent("IDLE");subTextFsm.SendEvent("DOWN");counterCurrent = playerData.geo + -addCounter;geoTextMesh.text = counterCurrent.ToString();}if (addRollerState == 0){geoChange = geo;addCounter = geoChange;addTextFsm.SendEvent("UP");addTextMesh.text = "+ " + addCounter.ToString();addRollerStartTimer = ROLLER_START_PAUSE;addRollerState = 1;}else if (addRollerState == 1){geoChange = geo;addCounter += geoChange;addTextMesh.text = "+ " + addCounter.ToString();addRollerStartTimer = ROLLER_START_PAUSE;}else if (addRollerState == 2){geoChange = geo;addCounter = geoChange;geoSpriteFsm.SendEvent("IDLE");counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();addTextMesh.text = "+ " + addCounter.ToString();addRollerState = 1;addRollerStartTimer = ROLLER_START_PAUSE;}changePerTick = (int)(addCounter * DIGIT_CHANGE_TIME * 1.75);if (changePerTick < 1){changePerTick = 1;}}public void TakeGeo(int geo){if (addRollerState > 0){geoChange = -geo;takeCounter = geoChange;addRollerState = 0;geoSpriteFsm.SendEvent("IDLE");addTextFsm.SendEvent("DOWN");counterCurrent = playerData.geo + -takeCounter;geoTextMesh.text = counterCurrent.ToString();}if (takeRollerState == 0){geoChange = -geo;takeCounter = geoChange;subTextFsm.SendEvent("UP");subTextMesh.text = "- " + (-takeCounter).ToString();takeRollerStartTimer = ROLLER_START_PAUSE;takeRollerState = 1;}else if (takeRollerState == 1){geoChange = -geo;takeCounter += geoChange;subTextMesh.text = "- " + (-takeCounter).ToString();takeRollerStartTimer = ROLLER_START_PAUSE;}else if (takeRollerState == 2){geoChange = -geo;takeCounter = geoChange;geoSpriteFsm.SendEvent("IDLE");counterCurrent = playerData.geo;geoTextMesh.text = counterCurrent.ToString();subTextMesh.text = "- " + (-takeCounter).ToString();takeRollerState = 1;takeRollerStartTimer = ROLLER_START_PAUSE;}changePerTick = (int)((double)((float)takeCounter * DIGIT_CHANGE_TIME) * 1.75);if (changePerTick > -1){changePerTick = -1;}}public void ToZero(){if(counterCurrent == 0){geoSpriteFsm.SendEvent("SHATTER");return;}changePerTick = -(int)((float)counterCurrent * DIGIT_CHANGE_TIME * 1.75f);if(changePerTick > -1){changePerTick = -1;}geoSpriteFsm.SendEvent("TO ZERO");toZero = true;}
}

顺便更下静态脚本FSMUtility，这个脚本是更方便的使用playmakerFSM内置的一些方法，我之前讲过但太久没更新了我就把最新版的贴出来。  

using System;
using System.Collections.Generic;
using HutongGames.PlayMaker;
using UnityEngine;public static class FSMUtility
{private static List<List<PlayMakerFSM>> fsmListPool;private const int FsmListPoolSizeMax = 20;static FSMUtility(){fsmListPool = new List<List<PlayMakerFSM>>();}public static PlayMakerFSM LocateFSM(GameObject go, string fsmName){if (go == null){return null;}List<PlayMakerFSM> list = ObtainFsmList();go.GetComponents<PlayMakerFSM>(list);PlayMakerFSM result = null;for (int i = 0; i < list.Count; i++){PlayMakerFSM playMakerFSM = list[i];if (playMakerFSM.FsmName == fsmName){result = playMakerFSM;break;}}ReleaseFsmList(list);return result;}private static List<PlayMakerFSM> ObtainFsmList(){if (fsmListPool.Count > 0){List<PlayMakerFSM> result = fsmListPool[fsmListPool.Count - 1];fsmListPool.RemoveAt(fsmListPool.Count - 1);return result;}return new List<PlayMakerFSM>();}public static bool ContainsFSM(GameObject go, string fsmName){if (go == null){return false;}List<PlayMakerFSM> list = ObtainFsmList();go.GetComponents<PlayMakerFSM>(list);bool result = false;for (int i = 0; i < list.Count; i++){if (list[i].FsmName == fsmName){result = true;break;}}ReleaseFsmList(list);return result;}private static void ReleaseFsmList(List<PlayMakerFSM> fsmList){fsmList.Clear();if (fsmListPool.Count < FsmListPoolSizeMax){fsmListPool.Add(fsmList);}}public static PlayMakerFSM GetFSM(GameObject go){return go.GetComponent<PlayMakerFSM>();}public static GameObject GetSafe(this FsmOwnerDefault ownerDefault, FsmStateAction stateAction){if (ownerDefault.OwnerOption == OwnerDefaultOption.UseOwner){return stateAction.Owner;}return ownerDefault.GameObject.Value;}public static void SendEventToGameObject(GameObject go, string eventName, bool isRecursive = false){if (go != null){SendEventToGameObject(go, FsmEvent.FindEvent(eventName), isRecursive);}}public static void SendEventToGameObject(GameObject go, FsmEvent ev, bool isRecursive = false){if (go != null){List<PlayMakerFSM> list = ObtainFsmList();go.GetComponents<PlayMakerFSM>(list);for (int i = 0; i < list.Count; i++){list[i].Fsm.Event(ev);}ReleaseFsmList(list);if (isRecursive){Transform transform = go.transform;for (int j = 0; j < transform.childCount; j++){SendEventToGameObject(transform.GetChild(j).gameObject, ev, isRecursive);}}}}public static int GetInt(PlayMakerFSM fsm, string variableName){return fsm.FsmVariables.FindFsmInt(variableName).Value;}public static Vector3 GetVector3(PlayMakerFSM fsm, string variableName){return fsm.FsmVariables.FindFsmVector3(variableName).Value;}public static void SetBool(PlayMakerFSM fsm, string variableName, bool value){fsm.FsmVariables.GetFsmBool(variableName).Value = value;}public static void SetInt(PlayMakerFSM fsm, string variableName, int value){fsm.FsmVariables.GetFsmInt(variableName).Value = value;}public static void SetFloat(PlayMakerFSM fsm, string variableName, float value){fsm.FsmVariables.GetFsmFloat(variableName).Value = value;}public static void SetString(PlayMakerFSM fsm, string variableName, string value){fsm.FsmVariables.GetFsmString(variableName).Value = value;}public abstract class CheckFsmStateAction : FsmStateAction{public FsmEvent trueEvent;public FsmEvent falseEvent;public abstract bool IsTrue { get; }public override void Reset(){trueEvent = null;falseEvent = null;}public override void OnEnter(){if (IsTrue){Fsm.Event(trueEvent);}else{Fsm.Event(falseEvent);}Finish();}}
}

 

 OK完全解读以后就回到Unity编辑器中托好变量：

4.在敌人的HealthManager.cs脚本中添加上吉欧的逻辑处理

        终于来到最后一步了，既然做了吉欧的其它逻辑处理了，那当然还差一步就是让敌人掉落钱了，我们都知道每一个敌人身上都有healthmanager.cs这个脚本的，

我们在敌人死亡也就是Die()函数中完成：

using System;
using System.Collections;
using HutongGames.PlayMaker;
using UnityEngine;
using UnityEngine.Audio;public class HealthManager : MonoBehaviour, IHitResponder
{[Header("Geo")][SerializeField] private int smallGeoDrops; //掉落多少小型geo[SerializeField] private int mediumGeoDrops;//掉落多少中型geo[SerializeField] private int largeGeoDrops;//掉落多少大型geo[SerializeField] private bool megaFlingGeo; //让geo掉落飞的范围更大[SerializeField] private GameObject smallGeoPrefab;[SerializeField] private GameObject mediumGeoPrefab;[SerializeField] private GameObject largeGeoPrefab;public void Die(float? attackDirection, AttackTypes attackType, bool ignoreEvasion){if (isDead){ return;}if (sprite){sprite.color = Color.white;}FSMUtility.SendEventToGameObject(gameObject, "ZERO HP", false);if (hasSpecialDeath){NonFatalHit(ignoreEvasion);return;}isDead = true;if(damageHero != null){damageHero.damageDealt = 0;}if(battleScene != null && !notifiedBattleScene){PlayMakerFSM playMakerFSM = FSMUtility.LocateFSM(battleScene, "Battle Control");if(playMakerFSM != null){FsmInt fsmInt = playMakerFSM.FsmVariables.GetFsmInt("Battle Enemies");if(fsmInt != null){fsmInt.Value--;notifiedBattleScene = true;}}}if (deathAudioSnapshot != null){deathAudioSnapshot.TransitionTo(6f);}if (sendKilledTo != null){FSMUtility.SendEventToGameObject(sendKilledTo, "KILLED", false);}if(attackType == AttackTypes.Splatter){GameCameras.instance.cameraShakeFSM.SendEvent("AverageShake");Debug.LogWarningFormat(this, "Instantiate!", Array.Empty<object>());Instantiate<GameObject>(corpseSplatPrefab, transform.position + effectOrigin, Quaternion.identity);if (enemyDeathEffects){enemyDeathEffects.EmitSound();}Destroy(gameObject);return;}if(attackType != AttackTypes.RuinsWater){//随机化生成的geo生成的角度和速度范围float angleMin = megaFlingGeo ? 65 : 80;float angleMax = megaFlingGeo ? 115 : 100;float speedMin = megaFlingGeo ? 30 : 15;float speedMax = megaFlingGeo ? 45 : 30;//各种面值geo生成的数量int num = smallGeoDrops;int num2 = mediumGeoDrops;int num3 = largeGeoDrops;bool flag = false;if(GameManager.instance.playerData.equippedCharm_24 && !GameManager.instance.playerData.brokenCharm_24) //如果拥有护符易碎贪婪{num += Mathf.CeilToInt(num * 0.2f);num2 += Mathf.CeilToInt(num2 * 0.2f);num3 += Mathf.CeilToInt(num3 * 0.2f);flag = true;}//生成并让geo全部飞起来GameObject[] gameObjects = FlingUtils.SpawnAndFling(new FlingUtils.Config{Prefab = smallGeoPrefab,AmountMin = num,AmountMax = num,SpeedMin = speedMin,SpeedMax = speedMax,AngleMin = angleMin,AngleMax = angleMax}, transform, effectOrigin);if (flag){SetGeoFlashing(gameObjects, smallGeoDrops);}gameObjects = FlingUtils.SpawnAndFling(new FlingUtils.Config{Prefab = mediumGeoPrefab,AmountMin = num2,AmountMax = num2,SpeedMin = speedMin,SpeedMax = speedMax,AngleMin = angleMin,AngleMax = angleMax}, transform, effectOrigin);if (flag){SetGeoFlashing(gameObjects, mediumGeoDrops);}gameObjects = FlingUtils.SpawnAndFling(new FlingUtils.Config{Prefab = largeGeoPrefab,AmountMin = num3,AmountMax = num3,SpeedMin = speedMin,SpeedMax = speedMax,AngleMin = angleMin,AngleMax = angleMax}, transform, effectOrigin);if (flag){SetGeoFlashing(gameObjects, largeGeoDrops);}}if (enemyDeathEffects != null){if (attackType == AttackTypes.Generic){enemyDeathEffects.doKillFreeze = false;}enemyDeathEffects.RecieveDeathEvent(attackDirection, deathReset, attackType == AttackTypes.Spell, false);}SendDeathEvent();Destroy(gameObject); //TODO:}/// <summary>/// 让geo闪烁起来/// </summary>/// <param name="gameObjects"></param>/// <param name="originalAmount"></param>private void SetGeoFlashing(GameObject[] gameObjects, int originalAmount){for (int i = gameObjects.Length - 1; i >= originalAmount; i--){GeoControl component = gameObjects[i].GetComponent<GeoControl>();if (component){component.SetFlashing();}}}
}

我们需要一个静态脚本FlingUtils.cs来控制如何让物体可靠的飞起来：例如设置它的初始的位置和角度，还有最主要的设置不同速度，最好的方法是用正弦余弦函数设置多物体不同的速度：

using UnityEngine;public static class FlingUtils
{public static GameObject[] SpawnAndFling(Config config,Transform spawnPoint,Vector3 positionOffset){if(config.Prefab == null){return null;}int num = Random.Range(config.AmountMin, config.AmountMax + 1);Vector3 a = (spawnPoint != null) ? spawnPoint.TransformPoint(positionOffset) : positionOffset;GameObject[] array = new GameObject[num];for (int i = 0; i < num; i++){Vector3 position = a + new Vector3(Random.Range(-config.OriginVariationX, config.OriginVariationX), Random.Range(-config.OriginVariationY, config.OriginVariationY));GameObject gameObject = config.Prefab.Spawn(position);gameObject.transform.position = position;Rigidbody2D component = gameObject.GetComponent<Rigidbody2D>();if(component != null){float d = Random.Range(config.SpeedMin, config.SpeedMax);float num2 = Random.Range(config.AngleMin, config.AngleMax);component.velocity = new Vector2(Mathf.Cos(num2 * 0.017453292f) * d, Mathf.Sin(num2 * 0.017453292f) * d);}array[i] = gameObject;}return array;}public static void FlingChildren(ChildrenConfig config, Transform spawnPoint, Vector3 positionOffset){if (config.Parent == null){return;}Vector3 a = (spawnPoint != null) ? spawnPoint.TransformPoint(positionOffset) : positionOffset;int num = (config.AmountMax > 0) ? Random.Range(config.AmountMin, config.AmountMax) : config.Parent.transform.childCount;for (int i = 0; i < num; i++){Transform child = config.Parent.transform.GetChild(i);child.gameObject.SetActive(true);child.transform.position = a + new Vector3(Random.Range(-config.OriginVariationX, config.OriginVariationX), Random.Range(-config.OriginVariationY, config.OriginVariationY), 0f);Rigidbody2D component = child.GetComponent<Rigidbody2D>();if (component != null){float d = Random.Range(config.SpeedMin, config.SpeedMax);float num2 = Random.Range(config.AngleMin, config.AngleMax);component.velocity = new Vector2(Mathf.Cos(num2 * 0.017453292f), Mathf.Sin(num2 * 0.017453292f)) * d;}}}public struct Config{public GameObject Prefab;public float SpeedMin;public float SpeedMax;public float AngleMin;public float AngleMax;public float OriginVariationX;public float OriginVariationY;public int AmountMin;public int AmountMax;}public struct ChildrenConfig{public GameObject Parent;public int AmountMin;public int AmountMax;public float SpeedMin;public float SpeedMax;public float AngleMin;public float AngleMax;public float OriginVariationX;public float OriginVariationY;}public struct SelfConfig{public GameObject Object;public float SpeedMin;public float SpeedMax;public float AngleMin;public float AngleMax;}}

二、制作HUD Canvas的初始的额外内容

这部分时比较水的，就是只是添加上额外内容的MeshRenderer没有技术含量的，做完记得关闭它们的meshrenderer：

首先是Blocker HUD Icon，说实话我都没用过这个护符，不懂是干嘛的：

然后是大部分耳熟能详的梦之钉， 这里也就做一个展示而已没有实际效果

然后是寻神者模式下的禁用图标还有寻神者模式        ：

内容太水了哈哈，没事大家就看个乐吧。

---

总结

        然后记得为每一个敌人的healthmanager.cs添加好三个面值的geo的预制体，以及这个敌人要生成多少数量的不同面值的geo吉欧，来到测试场景，这里我就举个例子，比如这个后面要讲的敌人螳螂，我给它设置的参数是这样的：

7个一元面值的小geo，2个5元面值的中geo。运行游戏后，geo sprite播放动画

回到Idle状态下：

击杀以后掉落金币：

生成的数量也没问题：

动画也没有问题，增加的数量也没问题： 

还记得我前面讲过的逻辑处理的AddGeo的三种状态吗，当玩家在持续捡钱的时候，状态不会发生变化，直到玩家在一段时间没捡钱后，就切换状态到状态2：

这里为什么是517是因为我按了一下作弊键给自己加了500块钱，实际上应该加的17根本没有多和少，因此也算顺利展示了金钱系统Geo大多数的逻辑处理，那为什么是大多数呢？因为花费吉欧的逻辑处理我还没展示给你们看，这个要等多后续的内容才能见分晓了。