yichael_smartbow/Assets/BowArrow/Scenes/GameChallengeScene/RabbitHuntGameMode.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;

public class RabbitHuntGameMode : ChallengeGameMode
{
    public RabbitHuntGameMode(GameMgr gameMgr) : base(gameMgr) {
        this.animalTypeID = 0;
        animalPrefab = animalsBaseT.Find("Rabbit").gameObject;
        baseCreateDistance = 8;
        BanBowReady();
    }

    public override void Start() {
        UnbanBowReady();
        if (nextLevel != null) {
            SetLevel(int.Parse(nextLevel));
            AddHuntGameView();
        } else {
            AddSelectLevelView();
        }
    }

    //动物的创建列表（数组元素表示动物颜色样式）
    int[] animalCreateList;
    //动物创建列表的当前索引值
    int animalCreateIndex = 0;

    //设置关卡级别
    public override void SetLevel(int level) {
        currentlevel = level;
        if (level == 1) {
            animalCreateList = new int[]{1, 1};
            arrowCountMax = arrowCount = 4;
        }
        else if (level == 2) {
            animalCreateList = new int[]{2, 2};
            arrowCountMax = arrowCount = 8;
        }
        else if (level == 3) {
            animalCreateList = new int[]{3, 3};
            arrowCountMax = arrowCount = 12;
        }
        else if (level == 4) {
            animalCreateList = new int[]{1, 1, 2, 2};
            arrowCountMax = arrowCount = 12;
        }
        else if (level == 5) {
            animalCreateList = new int[]{1, 1, 1, 3, 3, 3};
            arrowCountMax = arrowCount = 24;
        }
        if (animalCreateList != null) animalCountMax = animalCount = animalCreateList.Length;
        time = arrowCountMax * 10;
        CreateAnimal();
    }

    float baseCreateDistance = 0;
    float plusCreateDistance = 2.5f;

    public bool banCreateAnimal = false;
    void CreateAnimal() {
        if (banCreateAnimal) return;
        if (animalCreateIndex >= animalCreateList.Length) return;
        int animalStyleID = animalCreateList[animalCreateIndex++];

        //计算初始生成位置，后面的兔子生成越来越远，在标准方向的±30°内生成
        #region 
            float createDistance = baseCreateDistance;
            baseCreateDistance += plusCreateDistance;
            Vector3 standardPointer = animalsBaseT.forward;
            Vector3 displace = standardPointer * createDistance;
            displace = Quaternion.AngleAxis(Random.Range(-22f, 22f), Vector3.up) * displace;
            Vector3 newPos = animalsBaseT.position + displace;
        #endregion

        GameObject animalObject = GameObject.Instantiate(animalPrefab, newPos, Quaternion.identity, animalsBaseT);
        animalObject.SetActive(true);

        Rabbit rabbit = animalObject.GetComponent<Rabbit>();
        rabbit.uid = animalCreateIndex;
        rabbit.baseDistance = createDistance;
        rabbit.baseDistanceMoveRange = plusCreateDistance;
        rabbit.hp = animalStyleID;
        rabbit.ChangeColorByType(animalStyleID);
        rabbit.RotateByWorldY(Random.value * 360);
        rabbit.onDie += delegate(Rabbit rb) {
            animalCount--;
            animalSet.Remove(rb);
            CreateAnimal();
        };
        animalSet.Add(rabbit);

        if (animalSet.Count < maxAnimalCountAtTheSameTime) {
            CreateAnimal();    
        }
    }
}