Unity Pet跟随AI

思想是：宠物离的越远，速度越快，越近，速度越慢。可以做做距离插值

public float SpeedLerp = 1f; public float SpeedMin = 0.5f;// 防止距离近的时候移动过慢 // ------- void Update(){// 触发条件 mPetToPlayerDistance = Vector3.Distance( mCityPlayerCtl.Position, mModelObj.transform.position); if (mPetToPlayerDistance < mSeekDistance) { mState = CityPetState.Idle; } else { mState = CityPetState.Seek; } switch (mState) { case CityPetState.Idle: Idle(); break; case CityPetState.Seek: Seek(); break; default: break; } } void Seek() {// 计算朝向 Vector3 vector = mCityPlayerCtl.transform.position - mModelObj.transform.position; vector = Vector3.ProjectOnPlane(vector, Vector3.up); var direct = Vector3.Normalize(vector); #if UNITY_EDITOR Debug.DrawRay(mModelObj.transform.position, direct); #endif // 计算"速度" var PetPosition = mModelObj.transform.position; var mMoveDestPos = mCityPlayerCtl.Position; mMoveDestPos += new Vector3(0, 1.5f, 0); float moveDelta = Mathf.Lerp(0, mPetToPlayerDistance - mSeekDistance, SpeedLerp * CommonData.DeltaTime); float minDelta = SpeedMin * CommonData.DeltaTime; moveDelta = Mathf.Max(moveDelta, minDelta); PetPosition = Vector3.MoveTowards(PetPosition, mMoveDestPos, moveDelta); mModelObj.transform.position = PetPosition; mModelObj.transform.forward = Vector3.Slerp(mModelObj.transform.forward, direct, CommonData.DeltaTime * 5); } private void Idle() { mLogicAnimator.SetInteger("MoveStage", 0); IsMoveAction = true; }