unity3d游戏源码（得到unitypackage源码之后怎么弄成游戏）

本文目录

• 得到unitypackage源码之后怎么弄成游戏
• Unity3D这款游戏引擎软件的源码是开源的吗
• 怎么看unity3d的引擎源码
• 如何防止Unity3D代码被反编译
• 求一段unity3D汽车自动驾驶的脚本代码

得到unitypackage源码之后怎么弄成游戏

导进unity之后检查代码有无问题，会不会报错。然后点击运行你这个游戏看看有没有什么问题，之后想导出APP就在bulidsetting 处导出APP就好了记得设置好选项，如果是到处iphone还需要mac才可以，谢谢

Unity3D这款游戏引擎软件的源码是开源的吗

Unity3D是不开源的。

相关介绍：

Unity类似于Director、Blender game engine、Virtools 或 Torque Game Builder等利用交互的图型化开发环境为首要方式的软件。

开放源码软件通常是有copyright的，它的许可证可能包含这样一些限制： 蓄意的保护它的开放源码状态，著者身份的公告，或者开发的控制。“开放源码”正在被公众利益软件组织注册为认证标记，这也是创立正式的开放源码定义的一种手段。

扩展资料

开放源码软件主要被散布在全世界的编程者队伍所开发，但是同时一些大学，政府机构承包商，协会和商业公司也开发它。源代码开放是信息技术发展引发网络革命所带来的面向未来以开放创新、共同创新为特点的、以人为本的创新2.0模式在软件行业的典型体现和生动注解。

共享软件。允许他人自由拷贝并收取合理注册费用。使用者可在软件规定的试用期限内免费试用，再决定注册购买与否。大部分共享版软件都有功能和时间限制，试用期通常分为7天、21天、30天不等。而有的共享软件还限制用户只能安装一次，若删除后重新安装将会失效。像Winzip、ACDSee等软件就是共享软件。

怎么看unity3d的引擎源码

• 引擎的源码是不对外开放的，只能看到被封装的类的源码，具体方法——在代码器中点击某个类，然后按F12

• Unity3D是非开源项目，源码已经被编译加密了，不能查看。
  如果实在想查看可以潜入unity公司内部~~·

如何防止Unity3D代码被反编译

加密原理(无需Unity源码):
1. IDA Pro打开libmono.so, 修改mono_image_open_from_data_with_name为
mono_image_open_from_data_with_name_0,
2. 替换实现mono_image_open_from_data_with_name,
extern mono_image_open_from_data_with_name_0(...);
mono_image_open_from_data_with_name(...) {
MonoImage *img = mono_image_open_from_data_with_name_0(...);
//发现数据文件头不是DLL前缀则解密 img-》raw_data, 相应修改img-》raw_data_len
return img;
}
3. 重新打包libmono.so; 替换Unity3D中的android下的版本.
4. 另外写个加密的工具，植入构建环境(MonoDeveloper或VS，添加一个打包后Build Phase来加密DLL); (IOS下禁用JIT固采用AOT编译，DLL中没有逻辑代码，所以无需操心);
从AndroidManifest.xml中可以看出，腾讯的改造应该是修改并替换了入口的classes.dex，把以前的入口 UnityPlayerProxyActivity替换为com.tencent.tauth.AuthActivity. 然后去加载了自定义的几个so: libNativeRQD.so. 周全考虑，为了防止第三方委托libmono去做解密而做了防护措施. 具体实现我还没做深入分析, 应该也是老套路.
libmono.so中的mono_image_open_from_data_with_name也被替换成了mono_image_open_from_data_with_name_0.
解密(android):
方法一: ROOT android系统(最好是一部手机，别搞模拟器，慢死), 挂载LD_PRELOAD的API hook来实现.
方法二: 内存特征码提取，简单高效无敌; 机器能读，你就能读;

求一段unity3D汽车自动驾驶的脚本代码

1、把脚本直接连到汽车车身网格上，车身要有Rigidbody Component，要有四个轮子网格做子物体。 要想有声音的话还要有AudioSource Component。
2、打开Inspector，选择汽车脚本，把四个轮子连接到相对应的Transform参数上。设置wheelRadius参数为你轮子网格的大小。WheelCollider是自动生成的，所以无需手动添加。这样就能保证运行了，其他的声音和灰尘可以再添加。
脚本源代码如下：*/
#pragma strict
//maximal corner and braking acceleration capabilities
var maxCornerAccel=10.0;
var maxBrakeAccel=10.0;
//center of gravity height - effects tilting in corners
var cogY = 0.0;
//engine powerband
var minRPM = 700;
var maxRPM = 6000;
//maximum Engine Torque
var maxTorque = 400;
//automatic transmission shift points
var shiftDownRPM = 2500;
var shiftUpRPM = 5500;
//gear ratios
var gearRatios = ;
var finalDriveRatio = 3.4;
//a basic handling modifier:
//1.0 understeer
//0.0 oversteer
var handlingTendency = 0.7;
//graphical wheel objects
var wheelFR : Transform;
var wheelFL : Transform;
var wheelBR : Transform;
var wheelBL : Transform;
//suspension setup
var suspensionDistance = 0.3;
var springs = 1000;
var dampers = 200;
var wheelRadius = 0.45;
//particle effect for ground dust
var groundDustEffect : Transform;
private var queryUserInput = true;
private var engineRPM : float;
private var steerVelo = 0.0;
private var brake = 0.0;
private var handbrake = 0.0;
private var steer = 0.0;
private var motor = 0.0;
//private var skidTime = 0.0;
private var onGround = false;
private var cornerSlip = 0.0;
private var driveSlip = 0.0;
private var wheelRPM : float;
private var gear = 1;
//private var skidmarks : Skidmarks;
private var wheels : WheelData;
private var wheelY = 0.0;
private var rev = 0.0;
//Functions to be used by external scripts
//controlling the car if required
//===================================================================
//return a status string for the vehicle
function GetStatus(gui : GUIText) {
gui.text="v="+(rigidbody.velocity.magnitude * 3.6).ToString("f1") km/h\ngear= "+gear+"\nrpm= "+engineRPM.ToString("f0");
}
//return an information string for the vehicle
function GetControlString(gui : GUIText) {
gui.text="Use arrow keys to control the jeep,\nspace for handbrake."; }
//Enable or disable user controls
function SetEnableUserInput(enableInput)
{
queryUserInput=enableInput;
}
//Car physics
//===================================================================
//some whee calculation data
class WheelData{ + "
var rotation = 0.0;
var coll : WheelCollider;
var graphic : Transform;
var maxSteerAngle = 0.0;
var lastSkidMark = -1;
var powered = false;
var handbraked = false;
var originalRotation : Quaternion;
};
function Start () {
//setup wheels
wheels=new WheelData;
for(i=0;i《4;i++)
wheels = new WheelData();
wheels.graphic = wheelFL;
wheels.graphic = wheelFR;
wheels.graphic = wheelBL;
wheels.graphic = wheelBR;
wheels.maxSteerAngle=30.0;
wheels.maxSteerAngle=30.0;
wheels.powered=true;
wheels.powered=true;
wheels.handbraked=true;
wheels.handbraked=true;
for(w in wheels)
{
if(w.graphic==null)
Debug.Log("You need to assign all four wheels for the car script!"); if(!w.graphic.transform.IsChildOf(transform))
Debug.Log("Wheels need to be children of the Object with the car script");
w.originalRotation = w.graphic.localRotation;
//create collider
colliderObject = new GameObject("WheelCollider");
colliderObject.transform.parent = transform;
colliderObject.transform.position = w.graphic.position;
w.coll = colliderObject.AddComponent(WheelCollider);
w.coll.suspensionDistance = suspensionDistance;
w.coll.suspensionSpring.spring = springs;
w.coll.suspensionSpring.damper = dampers;
//no grip, as we simulate handling ourselves
w.coll.forwardFriction.stiffness = 0;
w.coll.sidewaysFriction.stiffness = 0;
w.coll.radius = wheelRadius;
}
//get wheel height (height forces are applied on)
wheelY=wheels.graphic.localPosition.y;
//setup center of gravity
rigidbody.centerOfMass.y = cogY;
//find skidmark object
// skidmarks = FindObjectOfType(typeof(Skidmarks));
//shift to first
gear=1;
}
//update wheel status
function UpdateWheels()
{
//calculate handbrake slip for traction gfx
handbrakeSlip=handbrake*rigidbody.velocity.magnitude*0.1;
if(handbrakeSlip》1)
handbrakeSlip=1;
totalSlip=0.0;
onGround=false;
for(w in wheels)
{
//rotate wheel
w.rotation += wheelRPM / 60.0 * -rev * 360.0 * Time.fixedDeltaTime; w.rotation = Mathf.Repeat(w.rotation, 360.0);
w.graphic.localRotation= Quaternion.Euler( w.rotation, w.maxSteerAngle*steer, 0.0 ) * w.originalRotation;
//check if wheel is on ground
if(w.coll.isGrounded)
onGround=true;
slip = cornerSlip+(w.powered?driveSlip:0.0)+(w.handbraked?handbrakeSlip:0.0); totalSlip += slip;
var hit : WheelHit;
var c : WheelCollider;
c = w.coll;
if(c.GetGroundHit(hit))
{
//if the wheel touches the ground, adjust graphical wheel position to reflect springs
w.graphic.localPosition.y-=Vector3.Dot(w.graphic.position-hit.point,transform.up)-w.coll.radius;
//create dust on ground if appropiate
if(slip》0.5 && hit.collider.tag=="Dusty")
{
groundDustEffect.position=hit.point;
groundDustEffect.particleEmitter.worldVelocity=rigidbody.velocity*0.5; groundDustEffect.particleEmitter.minEmission=(slip-0.5)*3; groundDustEffect.particleEmitter.maxEmission=(slip-0.5)*3;
groundDustEffect.particleEmitter.Emit(); }
//and skid marks
/*if(slip》0.75 && skidmarks != null)
w.lastSkidMark=skidmarks.AddSkidMark(hit.point,hit.normal,(slip-0.75)*2,w.lastSkidMark);
else
w.lastSkidMark=-1; */
}
// else w.lastSkidMark=-1;
}
totalSlip/=wheels.length;
}
//Automatically shift gears
function AutomaticTransmission()
{
if(gear》0)
{
if(engineRPM》shiftUpRPM&&gear《gearRatios.length-1)
gear++;
if(engineRPM《shiftDownRPM&&gear》1)
gear--;
}
}
//Calculate engine acceleration force for current RPM and trottle
function CalcEngine() : float
{
if(brake+handbrake》0.；motor=0.0;；//ifcarisairborne,justre；if(!onGround)；engineRPM+=(motor-0.3)*2；engineRPM=Mathf.Clamp(en；return0.0;；else；AutomaticTransmission();；engineRPM=whee
if(brake+handbrake》0.1)
motor=0.0;
//if car is airborne, just rev engine
if(!onGround)
{
engineRPM += (motor-0.3)*25000.0*Time.deltaTime;
engineRPM = Mathf.Clamp(engineRPM,minRPM,maxRPM);
return 0.0;
}
else
{
AutomaticTransmission();
engineRPM=wheelRPM*gearRatios*finalDriveRatio;
if(engineRPM《minRPM)
engineRPM=minRPM;
if(engineRPM《maxRPM)
{
//fake a basic torque curve
x = (2*(engineRPM/maxRPM)-1);
torqueCurve = 0.5*(-x*x+2);
torqueToForceRatio = gearRatios*finalDriveRatio/wheelRadius; return
motor*maxTorque*torqueCurve*torqueToForceRatio;
}
else
//rpm delimiter
return 0.0;
}
}
//Car physics
//The physics of this car are really a trial-and-error based extension of
//basic "Asteriods" physics -- so you will get a pretty arcade-like feel. //This
may or may not be what you want, for a more physical approach research //the
wheel colliders
function HandlePhysics () {
var velo=rigidbody.velocity;
wheelRPM=velo.magnitude*60.0*0.5;
rigidbody.angularVelocity=new
Vector3(rigidbody.angularVelocity.x,0.0,rigidbody.angularVelocity.z);
dir=transform.TransformDirection(Vector3.forward);
flatDir=Vector3.Normalize(new Vector3(dir.x,0,dir.z));
flatVelo=new Vector3(velo.x,0,velo.z);
rev=Mathf.Sign(Vector3.Dot(flatVelo,flatDir));
//when moving backwards or standing and brake is pressed, switch to
reverse
if((rev《0||flatVelo.sqrMagnitude《0.5)&&brake》0.1)
gear=0;
if(gear==0)
{
//when in reverse, flip brake and gas
tmp=brake;
brake=motor;
motor=tmp;
//when moving forward or standing and gas is pressed, switch to drive
if((rev》0||flatVelo.sqrMagnitude《0.5)&&brake》0.1)
gear=1;
}
engineForce=flatDir*CalcEngine();
totalbrake=brake+handbrake*0.5;
if(totalbrake》1.0)totalbrake=1.0;
brakeForce=-flatVelo.normalized*totalbrake*rigidbody.mass*maxBrakeAccel;
flatDir*=flatVelo.magnitude;
flatDir=Quaternion.AngleAxis(steer*30.0,Vector3.up)*flatDir;
flatDir*=rev;
diff=(flatVelo-flatDir).magnitude;
cornerAccel=maxCornerAccel;
if(cornerAccel》diff)cornerAccel=diff;
cornerForce=-(flatVelo-flatDir).normalized*cornerAccel*rigidbody.mass;
cornerSlip=Mathf.Pow(cornerAccel/maxCornerAccel,3);
rigidbody.AddForceAtPosition(brakeForce+engineForce+cornerForce,transform.position+transform.up*wheelY);
handbrakeFactor=1+handbrake*4;
if(rev《0)
handbrakeFactor=1;
veloSteer=((15/(2*velo.magnitude+1))+1)*handbrakeFactor;
steerGrip=(1-handlingTendency*cornerSlip);
if(rev*steer*steerVelo《0)
steerGrip=1;
maxRotSteer=2*Time.fixedDeltaTime*handbrakeFactor*steerGrip;
fVelo=velo.magnitude;
veloFactor=fVelo《1.0?fVelo:Mathf.Pow(velo.magnitude,0.3);
steerVeloInput=rev*steer*veloFactor*0.5*Time.fixedDeltaTime*handbrakeFactor;
if(velo.magnitude《0.1)
steerVeloInput=0;
if(steerVeloInput》steerVelo)
{
steerVelo+=0.02*Time.fixedDeltaTime*veloSteer;
if(steerVeloInput《steerVelo)
steerVelo=steerVeloInput;
}
else
{
steerVelo-=0.02*Time.fixedDeltaTime*veloSteer;
if(steerVeloInput》steerVelo)
steerVelo=steerVeloInput;
}
steerVelo=Mathf.Clamp(steerVelo,-maxRotSteer,maxRotSteer);
transform.Rotate(Vector3.up*steerVelo*57.295788);
}
function FixedUpdate () {
//query input axes if necessarry
if(queryUserInput)
{
brake = Mathf.Clamp01(-Input.GetAxis("Vertical"));
handbrake = Input.GetButton("Jump")?1.0:0.0;
steer = Input.GetAxis("Horizontal");
motor = Mathf.Clamp01(Input.GetAxis("Vertical"));
}
else
{
motor = 0;
steer = 0;
brake = 0;
handbrake = 0;
}
//if car is on ground calculate handling, otherwise just rev the engine
if(onGround)
HandlePhysics();
else
CalcEngine();
//wheel GFX
UpdateWheels();
//engine sounds
audio.pitch=0.5+0.2*motor+0.8*engineRPM/maxRPM;
audio.volume=0.5+0.8*motor+0.2*engineRPM/maxRPM;
}
//Called by DamageReceiver if boat destroyed
function Detonate()
{
//destroy wheels
for( w in wheels )
w.coll.gameObject.active=false; //no more car physics
enabled=false;
}