ActionTowerDefense/ActionTowerDefense/Assets/Scripts/Characters/Demonic.cs

using Spine.Unity;
using Spine;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Demonic : MoveCharacter
{
    [Header("友方单位属性")]
    public SoldierType soldierType;      //当前士兵属于什么兵种
    public PlayerController player;      //召唤师
    public int playerID;
    public int id;
    public float costMp = 10;
    public bool isBack = false;          //往反方向走
    public int baseSortingOrder;
    public float runSpeed;
    public float summonTime;

    [Header("锁魂塔")]
    public bool isReturnSoulTower;
    public Vector3 origSoulPos;
    public bool isRecorded;

    [Header("友方单位组件")]
    public SearchState searchState;
    public Collider soulCollector;

    [Header("攻击")]
    [SerializeField]
    private int curAttackID;
    private AttackController.AttackMethod[] am;
    private int len;
    private float pastAttackTime;

    [Header("八卦")]
    public float adsorbSpeed;                           //八卦吸附的速度
    [HideInInspector] public Vector3 adsorbTarget;       //八卦胖子吸附时目标位置的X
    private float adsorbTime;                           //八卦吸附中的时间
    public GameObject effectPrefab;                     //八卦卦象效果

    [Header("掉落魂")]
    public int dropSoulMax = 3;
    public int dropSoulMin = 1;
    public float dropSoulAngle = 60f;
    
    private void Start()
    {
        am = attackController.attackMethod;
        len = am.Length;
    }

    private void OnDisable()
    {
        PlayersInput.instance[playerID].OnDemonicRecycle(this);
        curAttackID = 0;
    }

    public override void FixedUpdate()
    {
        OnSearchState();
        OnState();
    }

    public bool SearchTarget()
    {
        targetCharacter = searchTrigger.GetMinDisTarget(attackController.targetTypes, attackController.canHitFly);
        if (targetCharacter != null)
        {
            return true;
        }
        else
        {
            return false;
        }
    }

    public void ChangeSearchState(SearchState newState)
    {
        switch (searchState)
        {
            case SearchState.NoTarget:
                break;
            case SearchState.InSearchScope:
                break;
            case SearchState.InAttackScope:
                break;
            default:
                break;
        }
        searchState = newState;
        switch (searchState)
        {
            case SearchState.NoTarget:
                targetCharacter = null;
                break;
            case SearchState.InSearchScope:
                break;
            case SearchState.InAttackScope:
                break;
            default:
                break;
        }
    }

    public void OnSearchState()
    {
        switch (searchState)
        {
            case SearchState.NoTarget:
                if (SearchTarget())
                {
                    ChangeSearchState(SearchState.InSearchScope);
                    break;
                }
                //向玩家基地移动
                break;
            case SearchState.InSearchScope:
                if (!SearchTarget())
                {
                    targetCharacter = null;
                    ChangeSearchState(SearchState.NoTarget);
                    break;
                }
                attackDis = attackController.attackDistance + targetCharacter.beHitDistance;
                if (targetCharacter != null && Mathf.Abs(targetCharacter.transform.position.x - transform.position.x) <= attackDis)
                {
                    ChangeSearchState(SearchState.InAttackScope);
                    break;
                }
                break;
            case SearchState.InAttackScope:
                if (targetCharacter != null)
                {
                    //判断是否在射程夹角内
                    AttackController.AttackMethod am = attackController.curAttackMethod;
                    if (am.attackType == AttackController.AttackType.Shoot && am.id != 0)
                    {
                        Vector3 dir = targetCharacter.beSearchTrigger.transform.position - transform.position;
                        float angle = Vector3.Angle(dir, Vector3.left * bodyTrans.localScale.x);
                        if ((dir.y > 0 && angle > am.maxUpAngle) || (dir.y < 0 && angle > am.maxDownAngle))
                        {
                            ChangeSearchState(SearchState.NoTarget);
                            break;
                        }
                    }
                    attackDis = attackController.attackDistance + targetCharacter.beHitDistance;
                    if (!targetCharacter.gameObject.activeInHierarchy || targetCharacter.isDie
                        || Mathf.Abs(targetCharacter.transform.position.x - transform.position.x) > attackDis)
                    {
                        ChangeSearchState(SearchState.NoTarget);
                    }
                }
                else
                {
                    ChangeSearchState(SearchState.NoTarget);
                }
                break;
            default:
                break;
        }
    }

    public override Vector3 GetMoveDir()
    {
        Vector3 moveDir = Vector3.zero;
        switch (searchState)
        {
            case SearchState.NoTarget:
                if (TowerMap.enemyTowers.Count == 0)
                {
                    moveDir = Vector3.left;
                    break;
                }
                float minDistance = Mathf.Infinity;
                int id = -1;
                for (int i = 0; i < TowerMap.enemyTowers.Count; i++)
                {
                    EnemyTower enemyTower = TowerMap.enemyTowers[i].GetComponent<EnemyTower>();
                    if (transform.position.y >
                        enemyTower.transform.position.y + enemyTower.height)
                    {
                        continue;
                    }
                    float distance = Vector3.Distance(transform.position,
                        TowerMap.enemyTowers[i].transform.position);
                    if (distance < minDistance)
                    {
                        minDistance = distance;
                        id = i;
                    }
                }
                if (id == -1)
                {
                    moveDir = Vector3.left;
                    break;
                }
                if (bodyTrans.position.x > TowerMap.enemyTowers[id].transform.position.x)
                {
                    moveDir = Vector3.left;
                }
                else
                {
                    moveDir = Vector3.right;
                }


                break;
            case SearchState.InSearchScope:
                if (targetCharacter)
                {
                    if (targetCharacter.transform.position.x - transform.position.x < 0)
                    {
                        moveDir = Vector3.left;
                    }
                    else
                    {
                        moveDir = Vector3.right;
                    }
                }
                else
                {
                    moveDir = Vector3.zero;
                }
                break;
            case SearchState.InAttackScope:
                if (targetCharacter)
                {
                    if (targetCharacter.transform.position.x - transform.position.x < 0)
                    {
                        moveDir = Vector3.left;
                    }
                    else
                    {
                        moveDir = Vector3.right;
                    }
                }
                else
                {
                    moveDir = Vector3.zero;
                }
                break;
            default:
                break;
        }
        if (!isBack)
        {
            return moveDir;
        }
        return -moveDir;
    }

    public bool GetAttack()
    {
        if (searchState == SearchState.InAttackScope)
        {
            return true;
        }
        return false;
    }

    public override void OnState()
    {
        base.OnState();
        if (state == CharacterState.None)
        {
            return;
        }
        //hurtKeepTime -= Time.deltaTime;
        dieKeepTime -= Time.deltaTime;
        invincibleTime -= Time.deltaTime;
        pastAttackTime += Time.deltaTime;
        Vector3 leftDir = GetMoveDir();
        bool isAttack = GetAttack();

        switch (state)
        {
            case CharacterState.Idle:
                if (isAdjustHeight == 1)
                {
                    ChangeState(CharacterState.Rise);
                    break;
                }
                if (isAttack)
                {
                    if (pastAttackTime >= attackController.attackInterval)
                    {
                        Attack_march();
                    }
                }
                else
                {
                    if (!foot.TrigGround && !canFly)
                    {
                        if (rb.velocity.y > 0)
                        {
                            ChangeState(CharacterState.Rise);
                            break;
                        }
                        else
                        {
                            ChangeState(CharacterState.Fall);
                            break;
                        }
                    }
                    if (leftDir.x > 0.3f || leftDir.x < -0.3f)
                    {
                        ChangeState(CharacterState.Run);
                        break;
                    }
                    rb.velocity = Vector3.right * velocityAddition;
                }
                break;
            case CharacterState.Run:
                if (isAttack)
                {
                    if (pastAttackTime >= attackController.attackInterval)
                    {
                        Attack_march();
                    }
                    else
                    {
                        ChangeState(CharacterState.Idle);
                    }
                }
                else
                {
                    if (!foot.TrigGround && !canFly)
                    {
                        if (rb.velocity.y > 0)
                        {
                            ChangeState(CharacterState.Rise);
                            break;
                        }
                        else
                        {
                            ChangeState(CharacterState.Fall);
                            break;
                        }
                    }
                    if (leftDir.x < 0.3f && leftDir.x > -0.3f)
                    {
                        ChangeState(CharacterState.Idle);
                        break;
                    }
                    if (leftDir.x > 0.3f)
                    {
                        //rb.velocity += Vector3.right * moveAcc * Time.deltaTime;
                        rb.velocity = Vector3.right * (moveSpeed + velocityAddition);
                        //if (rb.velocity.x > maxMoveSpeed)
                        //{
                        //    rb.velocity = new Vector3(maxMoveSpeed, rb.velocity.y, rb.velocity.z);
                        //}
                        if (bodyTrans.localScale.x > 0)
                        {
                            Turn();
                        }
                    }
                    else if (leftDir.x < -0.3f)
                    {
                        //rb.velocity -= Vector3.right * moveAcc * Time.deltaTime;
                        rb.velocity = Vector3.right * (-moveSpeed + velocityAddition);
                        //if (rb.velocity.x < -maxMoveSpeed)
                        //{
                        //    rb.velocity = new Vector3(-maxMoveSpeed, rb.velocity.y, rb.velocity.z);
                        //}
                        if (bodyTrans.localScale.x < 0)
                        {
                            Turn();
                        }
                    }
                    AdjustHeight();
                }
                break;
            case CharacterState.Rush:
                if (isAttack)
                {
                    if (pastAttackTime >= attackController.attackInterval)
                    {
                        Attack_march();
                    }
                    else
                    {
                        ChangeState(CharacterState.Idle);
                    }
                }
                else
                {
                    if (!foot.TrigGround && !canFly)
                    {
                        if (rb.velocity.y > 0)
                        {
                            ChangeState(CharacterState.Rise);
                            break;
                        }
                        else
                        {
                            ChangeState(CharacterState.Fall);
                            break;
                        }
                    }
                    if (leftDir.x < 0.3f && leftDir.x > -0.3f)
                    {
                        ChangeState(CharacterState.Idle);
                        break;
                    }
                    if (leftDir.x > 0.3f)
                    {
                        //rb.velocity += Vector3.right * moveAcc * Time.deltaTime;
                        rb.velocity = Vector3.right * runSpeed;
                        //if (rb.velocity.x > maxMoveSpeed)
                        //{
                        //    rb.velocity = new Vector3(maxMoveSpeed, rb.velocity.y, rb.velocity.z);
                        //}
                        if (bodyTrans.localScale.x > 0)
                        {
                            Turn();
                        }
                    }
                    else if (leftDir.x < -0.3f)
                    {
                        //rb.velocity -= Vector3.right * moveAcc * Time.deltaTime;
                        rb.velocity = Vector3.left * runSpeed;
                        //if (rb.velocity.x < -maxMoveSpeed)
                        //{
                        //    rb.velocity = new Vector3(-maxMoveSpeed, rb.velocity.y, rb.velocity.z);
                        //}
                        if (bodyTrans.localScale.x < 0)
                        {
                            Turn();
                        }
                    }
                }
                break;
            case CharacterState.Rise:
                if (isAdjustHeight == 1)
                {
                    AdjustHeight();
                }
                else if(isAdjustHeight == 2)
                {
                    ChangeState(CharacterState.Idle);
                    isAdjustHeight = 0;
                }
                else
                {
                    if (rb.velocity.y <= 0)
                    {
                        ChangeState(CharacterState.Fall);
                        break;
                    }
                    rb.velocity += Vector3.up * extraRiseGravity * Time.deltaTime;
                }
                break;
            case CharacterState.Fall:
                if (foot.TrigGround || canFly)
                {
                    ChangeState(CharacterState.Idle);
                    break;
                }
                Vector3 velocity = rb.velocity;
                velocity.y += extraFallGravity * Time.deltaTime;
                if (leftDir.x > 0.3f)
                {
                    velocity.x = moveSpeed;
                    if (bodyTrans.localScale.x > 0)
                    {
                        Turn();
                    }
                }
                else if (leftDir.x < -0.3f)
                {
                    velocity.x = -moveSpeed;
                    if (bodyTrans.localScale.x < 0)
                    {
                        Turn();
                    }
                }

                rb.velocity = velocity;
                break;
            case CharacterState.Attack:
                attackController.JudgeTriggerOnOff();
                if (attackController.attackTime <= 0)
                {
                    if (isInSoulTower)
                    {
                        ChangeState(CharacterState.LockSoul);
                    }
                    else
                    {
                        ChangeState(CharacterState.Idle);
                    }
                    break;
                }
                rb.velocity = new Vector3(velocityAddition, rb.velocity.y, rb.velocity.z);
                break;
            case CharacterState.Die:
                if (dieKeepTime <= 0)
                {
                    gameObject.SetActive(false);
                    break;
                }
                break;
            case CharacterState.LockSoul:
                if (!isReturnSoulTower)
                {
                    if (targetCharacter != null && targetCharacter.gameObject.layer == 8 && targetCharacter.isInSoulTower)
                    {
                        ChangeState(CharacterState.Idle);
                    }
                    else
                    {
                        isReturnSoulTower = true;
                    }
                }
                else
                {
                    if (transform.position.x - origSoulPos.x >= 0.2f)
                    {
                        rb.velocity = Vector3.right * (-moveSpeed + velocityAddition);
                        if (bodyTrans.localScale.x < 0)
                        {
                            Turn();
                        }
                    }
                    else if (origSoulPos.x - transform.position.x >= 0.2f)
                    {
                        rb.velocity = Vector3.right * (moveSpeed + velocityAddition);
                        if (bodyTrans.localScale.x > 0)
                        {
                            Turn();
                        }
                    }
                    else
                    {
                        ani.Play("idle", 0, 0);
                        rb.velocity = Vector3.zero;
                        transform.position = origSoulPos;
                        isReturnSoulTower = false;
                        targetCharacter = null;
                        FaceToEneTower();
                    }
                    //锁魂塔内使魔返回原地过程中扫描到敌人时，停止返回并索敌攻击
                    if (targetCharacter != null && targetCharacter.gameObject.layer == 8 && targetCharacter.isInSoulTower)
                    {
                        ChangeState(CharacterState.Idle);
                    }
                }
                break;
            case CharacterState.HitStun:
                hitFeedbackSystem.HitStunUpdate();
                break;
            case CharacterState.SpecialStatus_Float:
                attributeStatus.SpecialStateEffect(SpecialState.FloatState);
                break;
            case CharacterState.SpecialStatus_BlowUp:
                attributeStatus.SpecialStateEffect(SpecialState.BlownUp);
                break;
            case CharacterState.SpecialStatus_ShotDown:
                attributeStatus.SpecialStateEffect(SpecialState.ShotDown);
                break;
            case CharacterState.SpecialStatus_Weak:
                attributeStatus.SpecialStateEffect(SpecialState.Weak);
                break;
            default:
                break;
        }
    }

    private void FaceToEneTower()
    {
        float dis = 1000000;
        GameObject to = null;
        foreach (GameObject g in TowerMap.enemyTowers)
        {
            float k = Vector3.Distance(g.transform.position, transform.position);
            if (k < dis)
            {
                dis = k;
                to = g;
            }
        }
        if (to != null && to.transform.position.x < transform.position.x)
        {
            if (bodyTrans.localScale.x < 0)
            {
                Turn();
            }
        }
        else
        {
            if (bodyTrans.localScale.x > 0)
            {
                Turn();
            }
        }
    }

    public override void ChangeState(CharacterState newState)
    {
        if (state == newState)
        {
            return;
        }
        switch (state)
        {
            case CharacterState.Idle:
                break;
            case CharacterState.Run:
                rb.velocity = Vector3.zero;
                break;
            case CharacterState.Rush:
                rb.velocity = Vector3.zero;
                break;
            case CharacterState.Rise:
                if (!canFly)
                {
                    bodyCollider.SetActive(true);
                }
                break;
            case CharacterState.Fall:
                rb.velocity = Vector3.zero;
                break;
            case CharacterState.Attack:
                if (attackController.effect)
                {
                    attackController.effect.SetActive(false);
                }
                attackController.ChooseAttack(curAttackID);
                attackController.isAttackTriggerOn = false;
                attackController.attackTrigger.gameObject.SetActive(false);
                break;
            case CharacterState.Die:
                isDie = false;
                break;
            case CharacterState.LockSoul:
                //isReturnSoulTower = true;
                break;
            default:
                break;
        }
        state = newState;
        switch (newState)
        {
            case CharacterState.Idle:
                ani.Play("idle", 0, 0);
                rb.velocity = Vector3.zero;
                //animalAni.SetInteger("state", (int)PlayerState.Idle);
                break;
            case CharacterState.Run:
                ani.Play("walk", 0, 0);
                //animalAni.SetInteger("state", (int)PlayerState.Walk);
                break;
            case CharacterState.Rush:
                ani.Play("rush", 0, 0);
                break;
            case CharacterState.Fall:
                ani.Play("fall", 0, 0);
                //animalAni.SetInteger("state", (int)PlayerState.Fall);
                break;
            case CharacterState.Attack:
                break;
            case CharacterState.Die:
                ani.Play("die", 0, 0);
                isDie = true;
                dieKeepTime = totalDieKeepTime;
                break;
            case CharacterState.LockSoul:
                rb.velocity = Vector3.zero;
                ani.Play("walk", 0, 0);
                //FaceToEneTower();
                break;
            default:
                break;
        }
    }

    public void Attack_summon()
    {
        if (needToAdjustFlyHeight && canFly)
        {
            flyHeight = Random.Range(minFlyHeight, maxFlyHeight);
            isAdjustHeight = 1;
        }
        attackController.Attack_summon();
        Vector3 moveDir;
        if (PlayersInput.instance[playerID].bodyTrans.localScale.x > 0)
        {
            moveDir = Vector3.left;
        }
        else
        {
            moveDir = Vector3.right;
        }
        if (moveDir.x > 0.3f)
        {
            if (bodyTrans.localScale.x > 0)
            {
                Turn();
            }
        }
        else if (moveDir.x < -0.3f)
        {
            if (bodyTrans.localScale.x < 0)
            {
                Turn();
            }
        }
        invincibleTime = totalAttack_summonTime;
        attackTarget = targetCharacter;
        curAttackID = 1;
    }

    public virtual void Attack_march()
    {
        attackController.Attack_march(curAttackID);
        if (curAttackID + 1 < len)
        {
            curAttackID += 1;
        }
        else if (am[0].id == 0)
        {
            curAttackID = 1;
        }
        else
        {
            curAttackID = 0;
        }
        attackTarget = targetCharacter;
        pastAttackTime = 0;
    }

    public void DropSouls()
    {
        int dropSoulNum = Random.Range(dropSoulMin, dropSoulMax + 1);
        if (dropSoulNum > 1)
        {
            for (int i = 0; i < dropSoulNum; i++)
            {
                float angleInterval = dropSoulAngle / (float)(dropSoulNum - 1);
                float angle = 90 + ((float)i - (float)(dropSoulNum - 1) / 2) * angleInterval;
                angle = angle / 180 * Mathf.PI;
                GameObject soulObj = PoolManager.Instantiate(soulPrefab, transform.position);
                Vector3 dir = new Vector3(Mathf.Cos(angle), Mathf.Sin(angle), 0);
                Soul soul = soulObj.GetComponent<Soul>();
                soul.Burst(dir * soulStartSpeed);
            }
        }
        else
        {
            GameObject soulObj = PoolManager.Instantiate(soulPrefab, transform.position);
            Vector3 dir = Vector3.up;
            Soul soul = soulObj.GetComponent<Soul>();
            soul.Burst(dir * soulStartSpeed);
        }
    }
}