[游戏开发]《简陋版坦克大战》

Unity3D小白的第一个项目《简陋版坦克大战》

个人制作，仅供参考。。。

大家好，我是Unity3d游戏开发的小白一名，我对游戏开发有非常浓厚的兴趣，所以我学习了关于Unity3d游戏开发的一些知识。运用自己一些浅薄的见解开发了这个项目，现在想和大家分享一下。
（ps：游戏场景中的人物模型是在网上下载的，其余由本人完成。）

一、坦克的移动

玩家可以通过键盘控制坦克的前后移动和左右转向

void Move()
	{
		transform.Rotate(0, Input.GetAxis("Horizontal") * Time.deltaTime * speed * 6, 0);
		transform.Translate(0, 0, Input.GetAxis("Vertical") * Time.deltaTime * speed);
	}

写出来一个Move函数，函数中获取transform(坦克)的坐标轴，之后在update里面直接调用，玩家可通过键盘的w，a，s，d操控坦克。

二、人物角色的移动

人物角色的移动不再通过获取坐标轴控制，而是使用鼠标点击场景地面让人物到达指定位置。点击选中整个地面，这里面用到一个组件Nav Mesh Agent。在Navigation面板中根据情况对参数进行调整，最后点击Bake渲染。

注意，这是对场景中的地面进行的操作，不是人物角色。
首先是人物角色的移动，通过人物模型和坦克模型之间的碰撞检测实现人物开坦克的效果

三、敌方坦克的自动巡航和自动攻击

自动巡航

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI ;
public class Test : MonoBehaviour {

	// Use this for initialization
	void Start () {
		cubeAgent.SetDestination (p1.position);
	}

	public Transform p1, p2;
	public NavMeshAgent cubeAgent;
	// Update is called once per frame
	void Update () {
		
		if(Vector3.Distance(cubeAgent.transform.position,p1.position)<2)
			cubeAgent.SetDestination (p2.position);
		if(Vector3.Distance(cubeAgent.transform.position,p2.position)<2)
			cubeAgent.SetDestination (p1.position);
	}
}

自动攻击

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

public class RotationTest : MonoBehaviour {
	public Quaternion origDir;
	// Use this for initialization
	void Start () {
		origDir = transform.rotation;
		speed = 10;
		fireRate = 2;
		//tank = GameObject.Find("AItanke");
	}
	public Collider[] contectList;
	public Transform target;
	public Transform spownpoint;
	public RaycastHit hit;
	public Ray ray;
	public GameObject paodan;//炮弹预制体
	public Transform paodanSpownpoint;//炮弹生成的地方
	public float speed;
	public float fireRate;//开炮间隔时间
	public float fireTime;
	void Update () {
		ray = new Ray (spownpoint.position, transform.TransformDirection (Vector3.forward));
		Physics.Raycast (ray , out hit);
		contectList = Physics.OverlapSphere (transform.position, 32);
		Debug .DrawRay (spownpoint.position, (GameObject .Find ("player").transform .position -spownpoint .position )*20);
		foreach (Collider i in contectList) {
			if (i.CompareTag ("Player") && hit.collider != null && hit.collider.CompareTag ("Player")) {
				Quaternion dir = Quaternion.LookRotation (target.position - transform.position);
				transform.rotation = Quaternion.Slerp (transform.rotation, dir, Time.time * 0.1f);
				//tank.GetComponent<AIContrllor>().Fire();
				Fire();
			} 
			if(hit.collider==null||!hit.collider.CompareTag ("Player"))
				transform.rotation = Quaternion.Slerp (transform.rotation, origDir, Time.time * 0.001f);
		}



	}
	void OnDrawGizmos(){
		Gizmos.DrawWireSphere (transform.position, 30);
	}
	public void Fire()
	{
		if (Time.time > fireTime + fireRate)
		{
			GameObject tmpPaodan = Instantiate(paodan, paodanSpownpoint.position, Quaternion.identity);
			tmpPaodan.GetComponent<Rigidbody>().AddForce(paodanSpownpoint.forward * 2000);
			fireTime = Time.time;
		}
	}
}

四、粒子系统的触发

首先需要自己创建粒子系统组件，然后对其参数进行调整

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

public class AItanke_lizi : MonoBehaviour {

	// Use this for initialization
	void Start () {
		
	}
	public ParticleSystem buff3;//定义一个粒子系统名叫buff3
	// Update is called once per frame
	void Update () {
		
	}
	void OnCollisionEnter(Collision other)//碰撞检测
	{
		if (other.transform.CompareTag("paodan"))//对所碰撞的物体进行比较标签
		{
			buff3.Play();
		}
	}
}

五、库房的开关门动画

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
public class Door : MonoBehaviour
{

	// Use this for initialization
	void Start()
	{
		CHU = GameObject.Find("chu");
		JIN = GameObject.Find("jin");
		JIN.SetActive(true);
		HOU = GameObject.Find("hou");
		HOU.SetActive(true);
	}

	public NavMeshAgent tanke;
	public Animation mendonghua;
	public ParticleSystem buff2;
	public GameObject CHU;
	public GameObject JIN;
	public GameObject HOU;
	// Update is called once per frame
	void Update()
	{
		
	}
	void OnTriggerEnter(Collider other)
	{
		if (other.name == "jin")
		{
			mendonghua["Take 001"].speed = 1;
			mendonghua["Take 001"].time = 0;
			mendonghua.Play();
			CHU.SetActive(false);
			Invoke("guanmen", 3);
			Debug.Log("101010");
		}
		if (other.name == "zhong")
		{
			CHU.SetActive(true);
			JIN.SetActive(false);
			//Debug.Log("000");
		}
		if (other.name == "hou")
		{
			JIN.SetActive(true);
			//CHU.SetActive(false);
			Debug.Log("000");
		}
		if (other.name == "chu")
		{
			mendonghua["Take 001"].speed = 1;
			mendonghua["Take 001"].time = 0;
			mendonghua.Play();
			Invoke("guanmen", 3);

		}
		if (other.name == "buff1")
		{
			buff2.Play();
			//Debug.Log("1111111");
		}

	}

	void guanmen()
	{
		mendonghua["Take 001"].speed = -1;
		mendonghua["Take 001"].time = mendonghua["Take 001"].length;
		mendonghua.Play("Take 001");
	}
}

六、炮弹数量及血量计数（包括UI界面显示）

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PlayerController : MonoBehaviour
{

	// Use this for initialization
	void Start()
	{
		ammoCount = 0;
		speed = 10;
		Emery_flood = 20;
		My_flood = 10;
	}
	public Text ammoCountdisplay;
	public Text EmeryfloodDisplay;
	public Text MyfloodDisplay;
	public int ammoCount;
	public GameObject paodan;
	public Transform paodanSpownpoint;
	public float speed;
	public int zonggong;
	public int Emery_flood;
	public int My_flood;
	public bool move_tanke;
	public GameObject AIThirdPersonController;
	public Camera ren_touding;
	// Update is called once per frame
	void Update()
	{
		Fire();
		if (move_tanke)
			Move();
		ammoCountdisplay.text = "炮弹数：" + zonggong + "/" + ammoCount;
		EmeryfloodDisplay.text = "敌方血量：" + Emery_flood;
		MyfloodDisplay.text = "我方血量：" + My_flood;

	}
	void Move()
	{
		transform.Rotate(0, Input.GetAxis("Horizontal") * Time.deltaTime * speed * 6, 0);
		transform.Translate(0, 0, Input.GetAxis("Vertical") * Time.deltaTime * speed);
	}
	void Fire()
	{
		if (Input.GetKeyDown(KeyCode.R))
		{
			if (ammoCount > 0)
			{
				zonggong += 30;
				ammoCount -= 30;
			}

		}
		if (zonggong > 0)
			if (Input.GetKeyDown(KeyCode.Space))
			{
				GameObject tmpPaodan = Instantiate(paodan, paodanSpownpoint.position, Quaternion.identity);
				tmpPaodan.GetComponent<Rigidbody>().AddForce(paodanSpownpoint.forward * 2000);
				zonggong--;
			}
	}
	void OnTriggerEnter(Collider other)
	{
		if (other.name == "buff1")
		{
			if (ammoCount < 120)
				ammoCount += 30;
		}
	}
	private void OnCollisionEnter(Collision other)
	{
		if (other.collider.name == "AIThirdPersonController")
		{
			AIThirdPersonController.SetActive(false);
			move_tanke = true;
			ren_touding.gameObject.SetActive(false);
		}
	}

}

七、总体效果