今天完善成了虚拟3D汽车展示项目的部分功能，虽然用的汽车模型有点粗糙，但感觉还不错，下面我就贴下源码供初学者学习！
项目展示地址：http://114.92.242.208/aspnet_client/system_web/carshow/dxw2.html，说明：浏览器必须要安装unityplayer插件。
项目操作说明：
1.鼠标左击可以点击左右车门，控制它的开关，还可以点击前后盖控制打开和关闭。
2.鼠标滚轮可以缩放，达到一个远近的效果。
3.按住键盘s键可以显示menu，h键可以隐藏menu菜单。
源码：
using UnityEngine;
using System.Collections;
public class NewBehaviourScript : MonoBehaviour
{
public GameObject cube;
public GameObject car;
public GameObject light;
Vector2 p1, p2;//用来记录鼠标的位置，以便计算旋转幅度
Vector3 originalPosition;
float target = 0;
public Texture2D redbtnTexture;
private bool bOpenMenu = false; //是否打开功能框
private Rect myWindow = new Rect(10, 10, 470, 300); //功能选项框架
public GUISkin customSkin;//自定义皮肤
private Rect closeButton = new Rect(415, 0, 26, 22);//关闭按钮
public Texture2D tHero;
private Rect rHero = new Rect(0, 40, 180, 230); //人物的位置
//图像框
private Rect stateBox = new Rect(157,50,280,210);
private string[] functionStr ; //功能选项数组
public Texture2D redBtn;
public Texture2D greenBtn;
public Texture2D blueBtn;
public Texture2D orangeBtn;
public Texture2D whiteBtn;
public Texture2D blackBtn;
private Texture2D[] iBtn;
//iBtn= new Texture2D[6]{redBtn,greenBtn,blueBtn,orangeBtn,whiteBtn,blackBtn};
private Rect[] pBtn = new Rect[6];
//车轮更换
private bool selectToggleWheel = false;
//雨刷器
private bool selectToogleWiper = false;
//转向灯
private bool selectToogleLeftTurningLight = false;
private bool selectToogleRightTurningLight = false;
//前照灯
private bool selectToogleFarLight = false;
private bool selectToogleNearLight = false;
private GUIContent[] guiCon = new GUIContent[4]; //接受字符串
public Rect[] strPosition = new Rect[4];
// 鼠标中间键
int MouseWheelSensitivity = 5;
int MouseZoomMin = 18;
int MouseZoomMax = 90;
float normalDistance = 32;
public GameObject doorL;
// Use this for initialization
void Start()
{
iBtn= new Texture2D[6]{redBtn,greenBtn,blueBtn,orangeBtn,whiteBtn,blackBtn};
originalPosition = transform.position;
doorL = GameObject.Find("doorL");
cube = GameObject.Find("Main Camera");
for (int i=0;i<6;i++)
{
pBtn[i] = new Rect(170+i*43, 65,40,30);
}
functionStr= new string[4]{"车轮更换","雨刷器","转向灯","前照灯"};
for (int i = 0; i < 4; i++)
{
guiCon[i] = new GUIContent(functionStr[i]);
}
strPosition[0] = new Rect();
}
// Update is called once per frame
void Update()
{
//如果为s键则打开弹出框
if (Input.GetKey(KeyCode.S))
{
bOpenMenu = true;
}
else if (Input.GetKey(KeyCode.H))
{
bOpenMenu = false;
}
//开门
//if (target < 20)
//{
// doorL.transform.Rotate(transform.forward, 2);
// target = target + 1;
//}
//旋转
if (Input.GetMouseButtonDown(0))
{
p1 = new Vector2(Input.mousePosition.x, Input.mousePosition.y);//鼠标右键按下时记录鼠标位置p1
}
if (Input.GetMouseButton(0))
{
p2 = new Vector2(Input.mousePosition.x, Input.mousePosition.y);//鼠标右键拖动时记录鼠标位置p2
//下面开始旋转，仅在水平方向上进行旋转
float dx = p2.x - p1.x;
float dy = (float)0.1*(p2.y - p1.y);
transform.RotateAround(car.transform.position, Vector3.up, dx * Time.deltaTime);
//鼠标上下移动
//transform.Translate(dy*Vector3.up * Time.deltaTime);
light.transform.RotateAround(car.transform.position, Vector3.up, dx*Time.deltaTime);
}
//鼠标滚轮控制场景大小
// 如果按住滑轮
if (Input.GetAxis("Mouse ScrollWheel") > 0)
{
Debug.Log(1);
Debug.Log(Input.GetAxis("Mouse ScrollWheel"));
if (normalDistance >= MouseZoomMin && normalDistance <= MouseZoomMax)
{
normalDistance -= Input.GetAxis("Mouse ScrollWheel") * MouseWheelSensitivity;
}
if (normalDistance < MouseZoomMin)
{
normalDistance = MouseZoomMin;
}
if (normalDistance > MouseZoomMax)
{
normalDistance = MouseZoomMax;
}
// transform.Translate(transform.forward * normalDistance);
transform.camera.fieldOfView = normalDistance;
}
//后滚
else if (Input.GetAxis("Mouse ScrollWheel") < 0)
{
Debug.Log(-1);
if (normalDistance >= MouseZoomMin && normalDistance <= MouseZoomMax)
{
normalDistance -= Input.GetAxis("Mouse ScrollWheel") * MouseWheelSensitivity;
}
if (normalDistance < MouseZoomMin)
{
normalDistance = MouseZoomMin;
}
if (normalDistance > MouseZoomMax)
{
normalDistance = MouseZoomMax;
}
// transform.Translate(-transform.forward * normalDistance);
transform.camera.fieldOfView = normalDistance;
}
//按返回键退出程序
//if (Input.GetKey(KeyCode.Escape))
//{
// print(1);
// Application.Quit();
//}
}
void OnGUI()
{
GUI.skin = customSkin;//赋值个性化皮肤
//弹出功能选项框
if (bOpenMenu)
{
myWindow = GUI.Window(0, myWindow, DoMyWindow, "");
//限制移动的横纵向坐标
//myWindow.x = Mathf.Clamp((float)myWindow.x,(float)0.0,(float)Screen.width-myWindow.width);
//myWindow.y = Mathf.Clamp((float)myWindow.y, (float)0.0, (float)Screen.height - myWindow.height);
}
string s = "作者：丁小未";
GUIStyle bb = new GUIStyle();
bb.normal.background = null;//设置背景
bb.normal.textColor = new Color(1,0,0);//设置颜色
bb.fontSize = 40;
GUI.Label(new Rect(40, 20, 100, 50), s, bb);
}
private bool flagLight1 = false; //方向灯
private bool flagLight2 = false; //远近灯
void DoMyWindow(int windowsId)
{
GUI.BeginGroup(new Rect(10, 10, 500, 400));
GUI.Box(stateBox, "");
//
//
// //点击关闭按钮
if (GUI.Button(closeButton,"",GUI.skin.GetStyle("ExitButton")))
{
bOpenMenu = false;
}
// GUI.DragWindow();
GUI.DrawTexture(rHero, tHero);
for (int i = 0; i < 6;i++ )
{
GUI.DrawTexture(pBtn[i], iBtn[i]);
}
//写文字
//GUI.Label(new Rect(170, 100, functionStr[0].Length, 20),guiCon[0],"TextItem");
for (int i = 0; i < 4; i++)
{
GUI.Label(new Rect(174,108+i*38,functionStr[i].Length,20),guiCon[i],"TextItem");
}
//车轮更换
//绿色开状态
if (selectToggleWheel)
{
//加选择框
selectToggleWheel = GUI.Toggle(new Rect(255, 110, 15, 15), selectToggleWheel, "", "TrueCheckItem");
}
//红色关闭状态
else
{
selectToggleWheel = GUI.Toggle(new Rect(255, 110, 15, 15), selectToggleWheel, "", "FalseCheckItem");
}
//雨刷器
if (selectToogleWiper)
{
//加选择框
selectToogleWiper = GUI.Toggle(new Rect(255, 148, 15, 15), selectToogleWiper, "", "TrueCheckItem");
}
//红色关闭状态
else
{
selectToogleWiper = GUI.Toggle(new Rect(255, 148, 15, 15), selectToogleWiper, "", "FalseCheckItem");
}
//转向灯
//左转
if (selectToogleLeftTurningLight)
{
if (flagLight1&&selectToogleRightTurningLight) //右边打开
{
selectToogleRightTurningLight = false; //关闭右边
}
//加选择框
selectToogleLeftTurningLight = GUI.Toggle(new Rect(255, 186, 15, 15), selectToogleLeftTurningLight, "", "TrueCheckItem");
flagLight1 = true;
}
//红色关闭状态
else
{
selectToogleLeftTurningLight = GUI.Toggle(new Rect(255, 186, 15, 15), selectToogleLeftTurningLight, "", "FalseCheckItem");
flagLight1 = false;
}
//右转
if (selectToogleRightTurningLight)
{
if (flagLight1 && selectToogleLeftTurningLight) //左边打开
{
selectToogleLeftTurningLight = false; //关闭右边
}
//加选择框
selectToogleRightTurningLight = GUI.Toggle(new Rect(285, 186, 15, 15), selectToogleRightTurningLight, "", "TrueCheckItem");
flagLight1 = true;
}
//红色关闭状态
else
{
selectToogleRightTurningLight = GUI.Toggle(new Rect(285, 186, 15, 15), selectToogleRightTurningLight, "", "FalseCheckItem");
flagLight1 = false;
}
//前照灯
//近
if (selectToogleNearLight)
{
if (flagLight2 && selectToogleFarLight) //远灯打开
{
selectToogleFarLight = false; //关闭远灯
}
//加选择框
selectToogleNearLight = GUI.Toggle(new Rect(255, 224, 15, 15), selectToogleNearLight, "", "TrueCheckItem");
flagLight2 = true;
}
//红色关闭状态
else
{
selectToogleNearLight = GUI.Toggle(new Rect(255, 224, 15, 15), selectToogleNearLight, "", "FalseCheckItem");
flagLight2 = false;
}
//远
if (selectToogleFarLight)
{
if (flagLight2 && selectToogleNearLight) //近灯打开
{
selectToogleNearLight = false;
}
//加选择框
selectToogleFarLight = GUI.Toggle(new Rect(285, 224, 15, 15), selectToogleFarLight, "", "TrueCheckItem");
flagLight2 = true;
}
//红色关闭状态
else
{
selectToogleFarLight = GUI.Toggle(new Rect(285, 224, 15, 15), selectToogleFarLight, "", "FalseCheckItem");
flagLight2 = false;
}
GUI.EndGroup();
}
}
门盖控制：
private bool isOpenDoor = false;
private bool openDoor = false;
private bool closeDoor = false;
private int target = 0;
int flag = 0;
Ray ray;
RaycastHit hitobj;
private GameObject doorl; //左门
// Use this for initialization
void Start () {
doorl = GameObject.Find("doorL");//左门
}
// Update is called once per frame
void Update () {
//画出射线
ray = Camera.main.ScreenPointToRay(Input.mousePosition);
if (Input.GetMouseButtonDown(0))
{
//鼠标点击车门
if (Physics.Raycast(ray,out hitobj,1000))
{
print("ddd");
Debug.DrawLine(ray.origin, hitobj.point);
//左车门
if (hitobj.collider.name == "doorL")
{
print("111");
if (flag == 0)
{
openDoor = true;
closeDoor = false;
}
else
{
closeDoor = true;
openDoor = false;
}
flag++;
flag %= 2;
}
}
//开左门
if (openDoor)
{
//开门
if (target < 40 && !isOpenDoor)
{
doorl.transform.Rotate(Vector3.forward, 1);
target = target + 1;
}
else
{
isOpenDoor = true;
}
}
if(closeDoor)
{
//关门
if (isOpenDoor && target > 0)
{
doorl.transform.Rotate(-Vector3.forward, 1);
target -= 1;
}
else
{
isOpenDoor = false;
}
}
}
效果图：
![[Unity3d]虚拟3D汽车展示项目_i++](https://s2.51cto.com/images/blog/202304/27114238_6449ef2e4833759667.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_30,g_se,x_10,y_10,shadow_20,type_ZmFuZ3poZW5naGVpdGk=/resize,m_fixed,w_1184)
