AI 学习

极简状态机:

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     public class Player : MonoBehaviour {

         /// <summary>
         /// 移动速度
         /// </summary>
         public float m_moveSpeed = 10.0f;

         private void Update() {
             Move();
         }

         private void Move() {
             Vector3 direction = Vector3.zero;
             if(Input.GetKey(KeyCode.W)) {
                 direction = transform.forward;
             }
             if(Input.GetKey(KeyCode.S)) {
                 direction = -transform.forward;
             }
             if(Input.GetKey(KeyCode.A)) {
                 direction = -transform.right;
             }
             if(Input.GetKey(KeyCode.D)) {
                 direction = transform.right;
             }
             transform.Translate(direction * Time.deltaTime * m_moveSpeed,Space.World);
         }
     }
 }

Player

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 状态
     /// </summary>
     public enum FSMState {
         /// <summary>
         /// 巡逻
         /// </summary>
         Patrol,
         /// <summary>
         /// 追逐
         /// </summary>
         Chase,
         /// <summary>
         /// 攻击
         /// </summary>
         Attack,
         /// <summary>
         /// 死亡
         /// </summary>
         Dead
     }

     public class Enemy : MonoBehaviour {

         /// <summary>
         /// 玩家
         /// </summary>
         public Transform m_player;

         /// <summary>
         /// 路标列表
         /// </summary>
         public Transform[] m_waypoints;
         /// <summary>
         /// 目标路标索引
         /// </summary>
         private int m_targetWaypointIndex;

         /// <summary>
         /// 移动速度
         /// </summary>
         public float m_moveSpeed = 0.1f;

         /// <summary>
         /// 状态
         /// </summary>
         public FSMState m_fsmState;

         /// <summary>
         /// 和玩家的距离
         /// </summary>
         public float m_distance;

         /// <summary>
         /// 追逐距离
         /// </summary>
         private float m_chaseDistance = 5f;
         /// <summary>
         /// 攻击距离
         /// </summary>
         private float m_attackDistance = 2f;

         [Space()]
         public Text m_text;

         private void Start() {
             //初始状态:巡逻
             m_fsmState = FSMState.Patrol;
             //设置初始目标路标索引
             m_targetWaypointIndex = ;
         }

         private void Update() {
             //根据状态切换
             switch(m_fsmState) {
             case FSMState.Patrol:
                 UpdatePatrolState();
                 break;
             case FSMState.Chase:
                 UpdateChaseState();
                 break;
             case FSMState.Attack:
                 UpdateAttackState();
                 break;
             case FSMState.Dead:
                 break;
             }

             DisplayDistance();
         }

         private void OnDrawGizmos() {
             //画自身的前方向
             iTween.DrawLine(new Vector3[] { transform.position,transform.position + transform.forward },Color.yellow);

             //根据状态画和玩家之间的关联线
             switch(m_fsmState) {
             case FSMState.Patrol:

                 break;
             case FSMState.Chase:
                 DrawLine(Color.green);
                 break;
             case FSMState.Attack:
                 DrawLine(Color.red);
                 break;
             case FSMState.Dead:
                 break;
             }

         }

         /// <summary>
         /// 更新巡逻状态
         /// </summary>
         private void UpdatePatrolState() {
             if(!IsArrived()) {
                 Move(m_waypoints[m_targetWaypointIndex]);
             }
             if(CalculateDistance() <= m_chaseDistance) {
                 m_fsmState = FSMState.Chase;
             }
         }

         /// <summary>
         /// 更新追逐状态
         /// </summary>
         private void UpdateChaseState() {
             Move(m_player);
             //小于等于攻击距离,攻击
             if(CalculateDistance() <= m_attackDistance) {
                 m_fsmState = FSMState.Attack;
             //大于攻击距离并且小于等于追逐距离,追逐
             } else if(CalculateDistance() > m_attackDistance && CalculateDistance() <= m_chaseDistance) {
                 m_fsmState = FSMState.Chase;
             //其余情况也就是大于追逐距离,巡逻
             } else {
                 m_fsmState = FSMState.Patrol;
             }
         }

         /// <summary>
         /// 更新攻击状态
         /// </summary>
         private void UpdateAttackState() {
             //大于攻击距离并且小于等于追逐距离,追逐
             if(CalculateDistance() > m_attackDistance && CalculateDistance() <= m_chaseDistance) {
                 m_fsmState = FSMState.Chase;
             //大于追逐距离,巡逻
             } else if(CalculateDistance() > m_chaseDistance) {
                 m_fsmState = FSMState.Patrol;
             }
         }

         private void UpdateDeadState() {

         }

         /// <summary>
         /// 画和玩家之间的线
         /// </summary>
         private void DrawLine(Color color) {
             iTween.DrawLine(new Transform[] { transform,m_player.transform },color);
         }

         /// <summary>
         /// 显示玩家的距离
         /// </summary>
         private void DisplayDistance() {
             float distance = Vector3.Distance(transform.position,m_player.position);
             m_text.text = "State:"+m_fsmState+"\nDistance:"+ distance.ToString();
         }

         /// <summary>
         /// 计算和玩家的距离
         /// </summary>
         private float CalculateDistance() {
             return Vector3.Distance(transform.position,m_player.position);
         }

         /// <summary>
         /// 是否到达路标
         /// </summary>
         private bool IsArrived() {
             float distance = Vector3.Distance(transform.position,m_waypoints[m_targetWaypointIndex].position);
             if(distance < 0.1f) {
                 m_targetWaypointIndex++;
                 m_targetWaypointIndex = m_targetWaypointIndex % ;
                 return true;
             }
             return false;
         }

         private void Move(Transform target) {
             transform.LookAt(target);
             transform.Translate(transform.forward * Time.deltaTime * m_moveSpeed,Space.World);
         }
     }
 }

Enemy

视频:https://pan.baidu.com/s/1mioIk6c

项目:https://pan.baidu.com/s/1cpc9T8

SlotMachineWeighted

 using UnityEngine;
 using System.Collections;

 public class SlotMachineWeighted : MonoBehaviour {

     public float spinDuration = 2.0f;
     public int numberOfSym = ;
     public GameObject betResult;

     private bool startSpin = false;
     private bool firstReelSpinned = false;
     private bool secondReelSpinned = false;
     private bool thirdReelSpinned = false;

     private int betAmount = ;

     private int creditBalance = ;
     private ArrayList weightedReelPoll = new ArrayList();
     private int zeroProbability = ;

     private int firstReelResult = ;
     private int secondReelResult = ;
     private int thirdReelResult = ;

     private float elapsedTime = 0.0f;

     // Use this for initialization
     void Start () {
         betResult.GetComponent<GUIText>().text = "";

         for (int i = ; i < zeroProbability; i++) {
             weightedReelPoll.Add();
         }

         int remainingValuesProb = ( - zeroProbability)/;

         for (int j = ; j < ; j++) {
             for (int k = ; k < remainingValuesProb; k++) {
                 weightedReelPoll.Add(j);
             }
         }
     }

     void OnGUI() {

         GUI.Label(new Rect(, , , ), "Your bet: ");
         betAmount = int.Parse(GUI.TextField(new Rect(, , , ), betAmount.ToString(), ));        

         GUI.Label(new Rect(, , , ), "Credits: " + creditBalance.ToString());

         if (GUI.Button(new Rect(,,,), "Pull Lever")) {
             betResult.GetComponent<GUIText>().text = "";
             startSpin = true;
         }
     }

     void checkBet() {
         if (firstReelResult == secondReelResult && secondReelResult == thirdReelResult) {
             betResult.GetComponent<GUIText>().text = "JACKPOT!";
             creditBalance += betAmount * ;
         }
         else if (firstReelResult ==  && thirdReelResult == ) {
             betResult.GetComponent<GUIText>().text = "YOU WIN " + (betAmount/).ToString();
             creditBalance -= (betAmount/);
         }
         else if (firstReelResult == secondReelResult) {
             betResult.GetComponent<GUIText>().text = "AWW... ALMOST JACKPOT!";
         }
         else if (firstReelResult == thirdReelResult) {
             betResult.GetComponent<GUIText>().text = "YOU WIN " + (betAmount*).ToString();
             creditBalance -= (betAmount*);
         }
         else {
             betResult.GetComponent<GUIText>().text = "YOU LOSE!";
             creditBalance -= betAmount;
         }
     }

     // Update is called once per frame
     void FixedUpdate () {
         if (startSpin) {
             elapsedTime += Time.deltaTime;
             int randomSpinResult = Random.Range(, numberOfSym);
             if (!firstReelSpinned) {
                 GameObject.Find("firstReel").GetComponent<GUIText>().text = randomSpinResult.ToString();
                 if (elapsedTime >= spinDuration) {
                     int weightedRandom = Random.Range(, weightedReelPoll.Count);
                     GameObject.Find("firstReel").GetComponent<GUIText>().text = weightedReelPoll[weightedRandom].ToString();
                     firstReelResult = (int)weightedReelPoll[weightedRandom];
                     firstReelSpinned = true;
                     elapsedTime = ;
                 }
             }
             else if (!secondReelSpinned) {
                 GameObject.Find("secondReel").GetComponent<GUIText>().text = randomSpinResult.ToString();
                 if (elapsedTime >= spinDuration) {
                     secondReelResult = randomSpinResult;
                     secondReelSpinned = true;
                     elapsedTime = ;
                 }
             }
             else if (!thirdReelSpinned) {
                 GameObject.Find("thirdReel").GetComponent<GUIText>().text = randomSpinResult.ToString();
                 if (elapsedTime >= spinDuration) {
                     if ((firstReelResult == secondReelResult) &&
                         randomSpinResult != firstReelResult) {
                         //the first two reels have resulted the same symbol
                         //but unfortunately the third reel missed
                         //so instead of giving a random number we'll return a symbol which is one less than the other 2

                         randomSpinResult = firstReelResult - ;
                         if (randomSpinResult < firstReelResult) randomSpinResult = firstReelResult - ;
                         if (randomSpinResult > firstReelResult) randomSpinResult = firstReelResult + ;
                         if (randomSpinResult < ) randomSpinResult = ;
                         if (randomSpinResult > ) randomSpinResult = ;

                         GameObject.Find("thirdReel").GetComponent<GUIText>().text = randomSpinResult.ToString();
                         thirdReelResult = randomSpinResult;
                     }
                     else {
                         int weightedRandom = Random.Range(, weightedReelPoll.Count);
                         GameObject.Find("thirdReel").GetComponent<GUIText>().text = weightedReelPoll[weightedRandom].ToString();
                         thirdReelResult = (int)weightedReelPoll[weightedRandom];
                     }

                     startSpin = false;
                     elapsedTime = ;
                     firstReelSpinned = false;
                     secondReelSpinned = false;

                     checkBet();
                 }
             }
         }
     }
 }

SlotMachineWeighted

极简感应器:

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 玩家
     /// </summary>
     public class Player : MonoBehaviour {

         /// <summary>
         /// 移动目标
         /// </summary>
         public Transform m_target;

         /// <summary>
         /// 移动速度
         /// </summary>
         public float m_moveSpeed = 10f;

         private void Update() {
             Move();
         }

         /// <summary>
         /// 移动
         /// </summary>
         private void Move() {
             if(Vector3.Distance(transform.position,m_target.position) < 1.0f) {
                 return;
             }

             Vector3 position = m_target.position;
             position.y = transform.position.y;

             Quaternion lookQuaternion = Quaternion.LookRotation(position - transform.position);
             transform.rotation = Quaternion.Slerp(transform.rotation,lookQuaternion,0.1f);
             transform.Translate(Vector3.forward * Time.deltaTime * );
         }

         private void OnDrawGizmos() {
             iTween.DrawLine(new Vector3[] { transform.position,transform.position + transform.forward });
         }
     }
 }

Player

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 鼠标点击指示
     /// </summary>
     public class Target : MonoBehaviour {

         private void Update() {
             if(Input.GetMouseButtonDown()) {
                 Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
                 RaycastHit hitInfo;
                 if(Physics.Raycast(ray.origin,ray.direction,out hitInfo)) {
                     Vector3 position = hitInfo.point;
                     position.y = ;
                     transform.position = position;
                 }
             }
         }
     }
 }

Target

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 漫游
     /// </summary>
     public class Wander : MonoBehaviour {

         /// <summary>
         /// 目标位置
         /// </summary>
         private Vector3 m_targetPosition;
         /// <summary>
         /// 移动速度
         /// </summary>
         private float m_moveSpeed = 5.0f;
         //private float rotSpeed = 2.0f;
         /// <summary>
         /// 移动范围
         /// </summary>
         private float minX, maxX, minZ, maxZ;

         void Start() {
             minX = -20.0f;
             maxX = 20.0f;

             minZ = -20.0f;
             maxZ = 20.0f;

             GetNextPosition();
         }

         void Update() {
             if(Vector3.Distance(m_targetPosition,transform.position) <= 1.0f)
                 GetNextPosition();

             Vector3 position = transform.position;
             position.y = 0.5f;

             Quaternion targetRotation = Quaternion.LookRotation(m_targetPosition - position);
             transform.rotation = Quaternion.Slerp(transform.rotation,targetRotation,Time.deltaTime);

             transform.Translate(new Vector3(,,m_moveSpeed * Time.deltaTime));
         }

         void GetNextPosition() {
             m_targetPosition = new Vector3(Random.Range(minX,maxX),0.5f,Random.Range(minZ,maxZ));
         }
     }
 }

Wander

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 感观
     /// </summary>
     public class Sense : MonoBehaviour {

         public Aspect.aspect aspectName = Aspect.aspect.Enemy;

         /// <summary>
         /// 检测频率
         /// </summary>
         public float detectionRate = 1.0f;
         /// <summary>
         /// 距上一次检测经过的时间
         /// </summary>
         protected float elapsedTime = 0.0f;

         /// <summary>
         /// 初始化
         /// </summary>
         protected virtual void Initialise() { }
         /// <summary>
         /// 更新感官
         /// </summary>
         protected virtual void UpdateSense() { }

         void Start() {
             elapsedTime = 0.0f;
             Initialise();
         }
         void Update() {
             UpdateSense();
         }
     }
 }

Sense

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 视觉
     /// </summary>
     public class Perspective : Sense {

         /// <summary>
         /// 视场角度
         /// </summary>
         public int FieldOfView = ;
         /// <summary>
         /// 视野距离
         /// </summary>
         public int ViewDistance = ;

         /// <summary>
         /// 玩家
         /// </summary>
         private Transform playerTrans;
         /// <summary>
         /// 射线方向
         /// </summary>
         private Vector3 rayDirection;

         protected override void Initialise() {
             playerTrans = GameObject.FindGameObjectWithTag("Player").transform;
             aspectName = Aspect.aspect.Player;
         }

         protected override void UpdateSense() {
             elapsedTime += Time.deltaTime;

             if(elapsedTime >= detectionRate) {
                 //elapsedTime = 0;
                 DetectAspect();
             }
         }

         /// <summary>
         /// 检测切面
         /// </summary>
         void DetectAspect() {
             RaycastHit hit;
             //射线方向位从自身到玩家的方向
             rayDirection = playerTrans.position - transform.position;

             //如果自身的朝向和从自身到玩家的方向之间的夹角小于视场角度,射线检测
             if((Vector3.Angle(rayDirection,transform.forward)) < FieldOfView) {
                 if(Physics.Raycast(transform.position,rayDirection,out hit,ViewDistance)) {
                     Aspect aspect = hit.collider.GetComponent<Aspect>();
                     if(aspect != null) {
                         if(aspect.aspectName == aspectName) {
                             print("Enemy Detected");
                         }
                     }
                 }
             }
         }

         void OnDrawGizmos() {

             //红线连接自身和玩家
             Debug.DrawLine(transform.position,playerTrans.position,Color.red);

             //正前方射线
             Vector3 frontRayPoint = transform.position + (transform.forward * ViewDistance);
             Debug.DrawLine(transform.position,frontRayPoint,Color.green);

             //左前方射线
             Vector3 leftRayPoint = frontRayPoint;
             leftRayPoint.x += FieldOfView * 0.5f;
             Debug.DrawLine(transform.position,leftRayPoint,Color.green);

             //右前方射线
             Vector3 rightRayPoint = frontRayPoint;
             rightRayPoint.x -= FieldOfView * 0.5f;
             Debug.DrawLine(transform.position,rightRayPoint,Color.green);
         }
     }
 }

Perspective

 /*
 脚本名称:
 脚本作者:
 建立时间:
 脚本功能:
 版本号:
 */
 using UnityEngine;
 using System.Collections;

 namespace VoidGame {

     /// <summary>
     /// 切面
     /// </summary>
     public class Aspect : MonoBehaviour {

         /// <summary>
         /// 角色
         /// </summary>
         public enum aspect {
             Player,
             Enemy
         }
         public aspect aspectName;
     }
 }

Aspect

项目:https://pan.baidu.com/s/1i581isP

路径跟随和引导

 using UnityEngine;
 using System.Collections;

 /// <summary>
 /// 跟随脚本
 /// </summary>
 public class VehicleFollowing : MonoBehaviour
 {
     /// <summary>
     /// 路径
     /// </summary>
     public Path path;
     /// <summary>
     /// 速度
     /// </summary>
     public float speed = 20.0f;
     /// <summary>
     /// 质量
     /// </summary>
     public float mass = 5.0f;
     /// <summary>
     /// 是否循环
     /// </summary>
     public bool isLooping = true;

     /// <summary>
     /// 当前速度
     /// </summary>
     private float curSpeed;

     /// <summary>
     /// 当前路径索引
     /// </summary>
     private int curPathIndex;
     /// <summary>
     /// 路径长度
     /// </summary>
     private float pathLength;
     /// <summary>
     /// 目标位置
     /// </summary>
     private Vector3 targetPoint;

     Vector3 velocity;

     void Start ()
     {
         pathLength = path.Length;
         curPathIndex = ;

         velocity = transform.forward;
     }

     // Update is called once per frame
     void Update ()
     {

         curSpeed = speed * Time.deltaTime;

         //根据当前路径点索引获取路径的位置
         targetPoint = path.GetPoint(curPathIndex);

         //如果自身位置和目标位置的距离小于路径点的半径,则表示到达位置
         if(Vector3.Distance(transform.position, targetPoint) < path.Radius)
         {
             //如果不是最后一个路径点
             if (curPathIndex < pathLength - )
                 curPathIndex ++;
             //如果是循环模式,重置下一个路标位置为0
             else if (isLooping)
                 curPathIndex = ;
             //停止
             else
                 return;
         }

         if (curPathIndex >= pathLength )
             return;

         if(curPathIndex >= pathLength -  && !isLooping)
             velocity += Steer(targetPoint, true);
         else
             velocity += Steer(targetPoint);

         //应用速度
         transform.position += velocity;
         //应用旋转
         transform.rotation = Quaternion.LookRotation(velocity);
     }

     public Vector3 Steer(Vector3 target, bool bFinalPoint = false)
     {
         //计算自身朝向
         Vector3 desiredVelocity = (target - transform.position);
         //获取距离长度
         float dist = desiredVelocity.magnitude;

         //归一化速度
         desiredVelocity.Normalize();

         if (bFinalPoint && dist < 10.0f)
             desiredVelocity *= (curSpeed * (dist / 10.0f));
         else
             desiredVelocity *= curSpeed;

         Vector3 steeringForce = desiredVelocity - velocity;
         Vector3 acceleration = steeringForce / mass;

         return acceleration;
     }
 }

VehicleFollowing

 using UnityEngine;
 using System.Collections;

 public class Path: MonoBehaviour
 {
     /// <summary>
     /// 路径点半径
     /// </summary>
     public float Radius = 2.0f;
     /// <summary>
     /// 路径点
     /// </summary>
     public Vector3[] pointA;

     /// <summary>
     /// 路径长度
     /// </summary>
     public float Length
     {
         get
         {
             return pointA.Length;
         }
     }

     public Vector3 GetPoint(int index)
     {
         return pointA[index];
     }

     /// <summary>
     /// Show Debug Grids and obstacles inside the editor
     /// </summary>
     void OnDrawGizmos()
     {
         for (int i = ; i < pointA.Length; i++)
         {
             if (i +  < pointA.Length)
             {
                 Debug.DrawLine(pointA[i], pointA[i + ], Color.red);
             }
         }
     }
 }

Path

 using UnityEngine;
 using System.Collections;

 public class VehicleAvoidance : MonoBehaviour
 {
     /// <summary>
     /// 移动速度
     /// </summary>
     public float speed = 20.0f;
     /// <summary>
     /// 质量
     /// </summary>
     public float mass = 5.0f;
     /// <summary>
     /// 力
     /// </summary>
     public float force = 50.0f;
     /// <summary>
     /// 避开障碍的最小距离
     /// </summary>
     public float minimumDistToAvoid = 20.0f;

     /// <summary>
     /// 当前速度
     /// </summary>
     private float curSpeed;
     /// <summary>
     /// 目标位置
     /// </summary>
     private Vector3 targetPoint;

     void Start ()
     {
         mass = 5.0f;
         targetPoint = Vector3.zero;
     }

     void Update ()
     {
         RaycastHit hit;
         var ray = Camera.main.ScreenPointToRay (Input.mousePosition);

         if(Input.GetMouseButtonDown() && Physics.Raycast(ray, out hit, 100.0f))
         {
             targetPoint = hit.point;
         }

         //计算自身朝向
         Vector3 dir = (targetPoint - transform.position);
         //归一化
         dir.Normalize();

         AvoidObstacles(ref dir);

         //判断和目标的距离
         if(Vector3.Distance(targetPoint, transform.position) < 3.0f)
             return;

         curSpeed = speed * Time.deltaTime;

         var rot = Quaternion.LookRotation(dir);
         transform.rotation = Quaternion.Slerp(transform.rotation, rot, 5.0f *  Time.deltaTime);

         transform.position += transform.forward * curSpeed;
     }

     /// <summary>
     /// 避开障碍
     /// </summary>
     public void AvoidObstacles(ref Vector3 dir)
     {
         RaycastHit hit;

         //只检测障碍物层
         int layerMask =  << ;

         if (Physics.Raycast(transform.position, transform.forward, out hit, minimumDistToAvoid, layerMask))
         {
             //获取碰撞点的法向量
             Vector3 hitNormal = hit.normal;
             //不改变y轴
             hitNormal.y = 0.0f;

             //计算新的方向
             dir = transform.forward + hitNormal * force;
         }
     }

     private void OnDrawGizmos() {
         Debug.DrawLine(transform.position,transform.position + transform.forward * minimumDistToAvoid,Color.red);
     }
 }

VehicleAvoidance

项目:https://pan.baidu.com/s/1pL0N6OV