3-14 Player Death Animation

製作好玩家死亡時播放的音效後，接著要來製作玩家死亡後要播放特定的動畫。首先，在Player的Animator中新增State。

將State取名為Death，Motion選擇Armed-Death1。如不知道這個Motion是去哪邊下載的，請大家先從以下文章連結進行下載：

2-27 Import Mechanim Animation Pack

https://rpgcorecombat.blogspot.tw/2017/12/2-27-import-mechanim-animation-pack.html

接著在Grounded中按右鍵，選擇Make Transition，將其連結到Death。

然後在Attack中也建立連結，連到Death。

新增一個名為Death的Trigger。

然後點擊Grounded到Death之間的連結線，從Inspector視窗中增加Conditions，選擇Death。

同理在Attack到Death的連結中，Conditions也選擇Death。

另外，我將Has Exit Time關掉，不然玩家死掉之後還要等快1秒的時間，人物才會倒下去。大家可以自由調整Exit Time，我喜歡讓玩家直接死掉，所以就關掉了。

底下提供Player.cs的程式碼：

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using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.Assertions; using UnityEngine.SceneManagement; using RPG.CameraUI; // TODO consider re-wiring using RPG.Core; using RPG.Weapons;   namespace RPG.Character{  public class Player : MonoBehaviour, IDamageable {     [SerializeField] float maxHealthPoints = 100f;   [SerializeField] float baseDamage = 50f;   [SerializeField] AnimatorOverrideController animatorOverrideController;   [SerializeField] Weapon weaponInUse;   [SerializeField] SpecialAbilityConfig[] abilities;   [SerializeField] AudioClip[] damageSounds;   [SerializeField] AudioClip[] deathSounds;     // 定義Trigger的字串常數   const string DEATH_TRIGGER = "Death";   const string ATTACK_TRIGGER = "Attack";     float lastHitTime;   float currentHealthPoint;   CameraRaycaster cameraRaycaster;   ISpecialAbility[] specialAbility;   AudioSource audioSource;   Animator animator;       public float healthAsPercentage{    get{ return currentHealthPoint / maxHealthPoints; }   }     void Start(){    // 初始化血量    currentHealthPoint = maxHealthPoints;    cameraRaycaster = FindObjectOfType<cameraraycaster> ();    // 註冊滑鼠碰到敵人的事件    cameraRaycaster.onMouseOverEnemy += OnMouseOverEnemy;    // 初始化武器，放置到手中    PutWeaponInHand ();    // 覆寫人物角色中的Animation    OverrideAnimatorController ();    // 替Player增加技能的Behaviour，並回傳ISpecialAbility物件    AttachSpecialAbility();    audioSource = GetComponent<audiosource> ();   }     private void AttachSpecialAbility(){    specialAbility = new ISpecialAbility[abilities.Length];    for (int i = 0; i < abilities.Length; i++) {     // 儲存ISpecialAbility物件     specialAbility[i] = abilities [i].AddComponent (gameObject);    }   }     private void OverrideAnimatorController(){    // 取得Animator物件    animator = GetComponent<animator> ();    // 將人物的Animator取代為我們剛剛新增的Player Animator Override    animator.runtimeAnimatorController = animatorOverrideController;    // Player Animator Override中有一預設的DEFAULT ATTACK，將其取代成Weapon物件中的Animation    // 亦即人物的Animation將會依據不同的Weapon物件，而使用有不同的動畫    animatorOverrideController ["DEFAULT ATTACK"] = weaponInUse.GetAnimClip ();   }     private void PutWeaponInHand(){    GameObject weaponPrefab = weaponInUse.GetWeaponPrefab ();    // 生成武器時，將會放置到指定的GameObject之下，此處為WeaponSocket之下    // 故可將WeaponSocket設置成玩家的右手或左手    GameObject weaponSocket = RequestDominantHand();    GameObject weapon = Instantiate (weaponPrefab, weaponSocket.transform);    // 將武器放置到正確的位置，並有正確的方向    weapon.transform.localPosition = weaponInUse.gripTransform.localPosition;    weapon.transform.localRotation = weaponInUse.gripTransform.localRotation;   }     private GameObject RequestDominantHand(){    // 從Children中尋找包含DominantHand的物件    DominantHand[] dominantHand = GetComponentsInChildren<dominanthand> ();    // 計算取得有DominantHand的物件的數量    int numberOfDominantHands = dominantHand.Length;    // 確保該數量不為0    Assert.AreNotEqual (numberOfDominantHands, 0, "No DominantHand found on player, please add one");    // 確保該數量不要大於1    Assert.IsFalse (numberOfDominantHands > 1, "Multiple Dominant script on Player, please remove one");    // 傳回屬於該DominantHand的GameObject    return dominantHand [0].gameObject;   }     void OnMouseOverEnemy(Enemy enemy){    if (Input.GetMouseButtonDown (0) && IsTargetInRange (enemy)) {     AttackTarget (enemy);    }else if (Input.GetMouseButtonDown (1)) {     // 0為使用第一個技能     AttemptSpecialAbility(0, enemy);    }   }     private void AttemptSpecialAbility(int abilityIndex, Enemy enemy){    Energy energyComponent = GetComponent<energy> ();    // 取得技能需要的能量消耗量    float energyCost = abilities [abilityIndex].GetEnergyCost ();      if (energyComponent.IsEnergyAvailable (energyCost)) {     energyComponent.ConsumeEnergy (energyCost);     // 發動技能，並傳入Player的baseDamage     AbilityParams abilityParams = new AbilityParams (enemy, baseDamage);     specialAbility [abilityIndex].Use(abilityParams);    }     }     private void AttackTarget(Enemy enemy){    // 確認本次攻擊時間離上一次攻擊時間須大於minTimeBetweenHits，相當於技能冷卻時間    if ( (Time.time - lastHitTime > weaponInUse.GetMinTimeBetweenHits())) {     // 呼叫Trigger啟動攻擊動畫     animator.SetTrigger(ATTACK_TRIGGER);     // 呼叫攻擊Target的方法     enemy.TakeDamage(baseDamage);     // 紀錄目前攻擊的時間     lastHitTime = Time.time;    }   }     // 確認敵人是否在範圍技的攻擊範圍內   private bool IsTargetInRange(Enemy enemy){    float distanceToTarget = (enemy.transform.position - transform.position).magnitude;    return distanceToTarget <= weaponInUse.GetMaxAttackRange();   }     public void TakeDamage(float damage){    // Math.Clamp可以確保數值運算後不會低於最小值或者高於最大值    currentHealthPoint = Mathf.Clamp (currentHealthPoint - damage, 0f, maxHealthPoints);    // 隨機播放受傷的音效    audioSource.clip = damageSounds [Random.Range (0, damageSounds.Length)];    audioSource.Play ();    bool playerDies = currentHealthPoint <= 0;    if (playerDies) {     StartCoroutine (KillPlayer ());    }   }     IEnumerator KillPlayer(){    // 播放死亡音效    audioSource.clip = deathSounds [Random.Range (0, deathSounds.Length)];    audioSource.Play ();    // 播放死亡動畫    animator.SetTrigger(DEATH_TRIGGER);    // 等待一段時間（依音效長度而定）    yield return new WaitForSecondsRealtime(audioSource.clip.length);    // 重載關卡    SceneManager.LoadScene(0);   }  } } </energy></dominanthand></animator></audiosource></cameraraycaster>

最後，執行遊戲看看，發現血量沒有了以後，角色就倒下啦！