Unity 3D中级项目：捕鱼达人

开发软件： unity3d 、 vs2017
游戏简介： 在3D模式下开发的2D游戏，使用UGUI进行场景搭建，适合有一定unity基础的同学学习制作
●首先放上完成的图



●然后再放上主要功能的代码

控制枪的行为

using UnityEngine;

public class GunFollow : MonoBehaviour
{
    public RectTransform UGUICanvas;
    public Camera mainCamera;

    void Update()
    {
        Vector3 mousePos;
        RectTransformUtility.ScreenPointToWorldPointInRectangle(UGUICanvas, new Vector2
			(Input.mousePosition.x, Input.mousePosition.y), mainCamera, out mousePos);
        float z;
        if (mousePos.x > transform.position.x)
        {
            z = -Vector3.Angle(Vector3.up, mousePos - transform.position);
        }
        else
        {
            z = Vector3.Angle(Vector3.up, mousePos - transform.position);
        }
        transform.localRotation = Quaternion.Euler(0, 0, z);
    }
}

生成鱼及控制鱼的行为

using UnityEngine;
using System.Collections;

public class FishMaker : MonoBehaviour
{
    public Transform fishHolder;
    public Transform[] genPositions;
    public GameObject[] fishPrefabs;

    public float fishGenWaitTime = 0.5f;
    public float waveGenWaitTime = 0.3f;

    void Start()
    {
        InvokeRepeating("MakeFishes", 0, waveGenWaitTime);
    }

    void MakeFishes()
    {
        int genPosIndex = Random.Range(0, genPositions.Length);
        int fishPreIndex = Random.Range(0, fishPrefabs.Length);
        int maxNum = fishPrefabs[fishPreIndex].GetComponent<FishAttr>().maxNum;
        int maxSpeed = fishPrefabs[fishPreIndex].GetComponent<FishAttr>().maxSpeed;
        int num = Random.Range((maxNum / 2) + 1, maxNum);
        int speed = Random.Range(maxSpeed / 2, maxSpeed);
        int moveType = Random.Range(0, 2);      //0：直走；1：转弯
        int angOffset;                          //仅直走生效，直走的倾斜角
        int angSpeed;                           //仅转弯生效，转弯的角速度

        if (moveType == 0)
        {
            angOffset = Random.Range(-22, 22);
            StartCoroutine(GenStraightFish(genPosIndex, fishPreIndex, num, speed, angOffset));
        }
        else
        {
            if (Random.Range(0, 2) == 0)        //是否取负的角速度
            {
                angSpeed = Random.Range(-15, -9);
            }
            else
            {
                angSpeed = Random.Range(9, 15);
            }
            StartCoroutine(GenTrunFish(genPosIndex, fishPreIndex, num, speed, angSpeed));
        }
    }

    IEnumerator GenStraightFish(int genPosIndex,int fishPreIndex,int num,int speed,int angOffset)
    {
        for (int i = 0; i < num; i++)
        {
            GameObject fish = Instantiate(fishPrefabs[fishPreIndex]);
            fish.transform.SetParent(fishHolder, false);
            fish.transform.localPos