unity3d中高级手册01基本3-7使用脚本

1、UsingScripts Unity Manual User Guide Working ssetsUsingUnity 手册- 用户指南 -与资产合作-使ThisisaroductiononhowtocreateandutilizescriptsinaUsingScripts Unity Manual User Guide Working ssetsUsingUnity 手册- 用户指南 -与资产合作-使Thisisaroductiononhowtocreateandutilizescriptsinaproject.FordetailedinformationaboutScripting A

2、PI, please view the Scripting Reference. For detailed information scripting,pleaseviewtheCreatingGameplaypageofthisreatinggameplayAPI 的详细信息，请查这是一个小的介绍如何在一个项目里建立和使。关玩家的详细信息，请查看本手册的建Scripting inside Unity is done by writing ehaviourscriptsinJavaScript,BooorC#.Youcanuseoneall scripting languages in a s

3、ingle project, there isno penalty for using none.Unlesss edallthescriptinglesareinUnity JavaScript, Boo 或 C#之内。你可以使用一个或所有简本的完成通过编写简单行例子是 JavaScript 的言在一个独立的项目中，使用多于一个没有损失。除非另有说明，所有Creatingnew scripts UnlikeotherassetslikeMeshesorTextures,ScriptfilescanbecreatedfromwithinUnity.Tocreateascript, open t

4、he Assets-Create-JavaScript (or Assets-Create-C Sharp Script or Assets-Create-Script)fromtheenu.ThiswillcreateanewscriptcalledNewBehaviourScriptandplaceselectedfolderin ProjectView.IfnofolderectedinProjectView,thescriptwillbecreatedatthe和其它资产不同，像网格或纹理文件可以 被建立。，从主菜单打Assets-Create-JavaScript（或 Assets-

5、Create-C Sharp Scrip 或 Assets-Create-Boo Script）建立一个称为 NewBehaviourScript 并放置它在项目视图里选择的文件夹里。如果在项目视图里没有文件选取将被建立在根Youcaneditthescriptbydouble-clickingonheProjectView.Thiswillitron,thescripteditorUnity.YoudoallyourscriptinginanexternaltexteditorlkeUnitron,andnotinYoucaneditthescriptbydouble-clickingonh

6、eProjectView.Thiswillitron,thescripteditorUnity.YoudoallyourscriptinginanexternaltexteditorlkeUnitron,andnotinUnitydirectly.Tosetthescript editor, change the drop-down item in Unity-External Script 你可以在项目视图里通过上双击编辑它。这将启动 Unitron，Unity 编辑器。在外部文本编辑器里理所有像 Unitron 一样，但不如在 Unity 里直接。设置默认编辑器，Unity-Externa

7、l Script editor 里（windows 上是 Eidt-External editor）These are the contents of a new, empty behaviour script: 这些是新的内容：Anew,emptyscriptdoesnotdoalotonitsown,soletsaddsomefunctionality.Changethescripttoread一个新的，空When executed, this code will o Worldto theconsole.But there is tcausesthecodetoexecutedyet.W

8、ehavetoattachthescripttoanactive heScenebeforeitwillbe当执行，这个代码将打印World到一个活动的 GameObjectAttachingscriptstoobjects Save theabove script and create a newThis will create a new GameObject called he Scene by selecting GameObject-Create Other-hecurrent保存上面并建立一个新的对象在场景里通过选取 GameObject-Other-Cube。这将建立一个的物体称

9、为Cube”在当前场景里functionUpdate()pr o functionUpdate()NowdragthescriptfromtheProjectViewtotheCubeheSceneorHierarchyView,itdoesntNowdragthescriptfromtheProjectViewtotheCubeheSceneorHierarchyView,itdoesntmatter).csoselecttheCubeandchooseComponent-Scripts-New Behaviour Script.Eitherofthesewillattachthescrip

10、ttotheCube.Everyscriptyoucreatewillhe Component-. Ifhavechanged the name of your script, you tname现在从项目视图里拖到这个立方体（Cube）（在场景里或层次视图里，这无关紧要）。你也可以选取这个 Cube 并选择 Component-Scripts-New Behaviour ScriptCube建立的每将显示在 Component-Scripts 菜单里。如果你已经修改了的名称，你将代替名称IfyouselecttheCubeandlookattheInspector,youwillbeen t

11、thescriptisnowvisible.Thismeanss如果你选取里 Cube 是现在可见。这意味着它已经被附加了PressPlaytotestyourcreation.Youshouldseethetextbuttons.Exitplaymodewhenyouseeo World appear beside the 按按钮去测试你的创造。你应该看到PressPlaytotestyourcreation.Youshouldseethetextbuttons.Exitplaymodewhenyouseeo World appear beside the 按按钮去测试你的创造。你应该看到o

12、 World文本显Play/Pause/Step 按钮旁边 （2.5 版的里，显示在底部状态栏）模式Manipulatingtheobject A()s ementcanbeveryhandywhendebuggingyourscript,butitdoesnotmanipulatetheitisattachedto.Letschangethescripttoaddsome一个 pr ()语句可以非常便利的当调试你时，但它不能操作被附属于的 物体）。让If youre new to scripting, its okay if this looks confusing. These are t

13、he important concepts to functionUpdate()isacontainerfortUnityexecutesmultipletimespersecondper frame). function Update () 是 Unity 多个时间每秒钟执行代码的容器（一次每帧）transform is a reference to the GameObjects Transform Component. Transform 是一个对象物。e() is a function器he Transform Component. e()是在变换组件里的功functionUpdat

14、e()e(0, ime, Thenumbersin-nthecommasrepresentthedegreesofro ionaroundeachaxisofspaceXYandZ. 在逗号之间的数字表示环绕每个3D空间空间轴：x，yz 的旋转的角度imeisamemberoftheTimet evens out movement over cond, so cubewillro eatthesamespeedThenumbersin-nthecommasrepresentthedegreesofro ionaroundeachaxisofspaceXYandZ. 在逗号之间的数字表示环绕每个

15、3D空间空间轴：x，yz 的旋转的角度imeisamemberoftheTimet evens out movement over cond, so cubewillro eatthesamespeednomatterhowmanyframespersecondyourmachineisTherefore,5*imemeans5degreesperime 是 Time 类的一个成员，使每秒移动平坦，因此这个Cube 器的每秒的多少帧被绘制。所以，5 * ime 意味着5 度。llind,wecanreadthiscodeaseveryframe,ro ethisGameObjectsTrans

16、formcomponentsmall amount titwillequalfivedegreesaroundtheYaxiseach可以阅读这个代码作为“每一个帧，旋转这个 GameObject 的变换组件一个小的数量因此所有在这一点将等5度环YYoucanslotsofdifferentComponentsthesamewayaswesed transform already. You have addComponentstotheGameObjectusingthe.AlltheComponentsyoucaneasilyarelistedunderVariablesontheGameO

17、bjectScriptingReference了 transform 的一样方法。你必须添加组件已GameObject 被在 For more information about the relationship n GameObjects, Scripts, and Components, please ahead to the GameObjects page or Using Components page of this GameObjects, Scripts Components Using Components 信息，请跳到前面的 GameObjects 页或本手册erofVar

18、iables Ourscriptsofarwillalwaysro etheCube5degreeseachsecond.Wemightwantittoro eanumberofdegreespersecond.Wecouldchangethenumberandsave,butthenwehavetowaitforthetoledandwehavetolaymodebeforeweseetheresults.ThereisamuchfasterwayWecanexperimentwiththespeedofro ioninreal-timeduringPlaymode,anditseasyto

19、的到目前为止将总每秒选择 Cube 5 度也许想要它每秒选择不同数量的角度可以改变数据并保存它，须等被从新编译以须进模式看到结果之前。有一个非常快速方法去做它。在实模式过程中Insteadofothee() function, we will declare a speed variable and theChangethescripttothefollowingcodeandsave替代在e()函数输入 定义一个 变量并在函数里使用它。修Now select the Cube and look at the Inspector. Notice how our speed variable 现

20、在，选取这个 Cube 的 speed 变量如何显示Now select the Cube and look at the Inspector. Notice how our speed variable 现在，选取这个 Cube 的 speed 变量如何显示ThisvariablecannowbemodifiedheInspector,justlikerenamingahe file explorer. Select press Return and change the value. You soright-oroption-clickonthevalueanddragthemouseup

21、down.Youcanchangethevariableatanytime,evenwhilethegameis并修改它的值。你也可以恰当的点击选项并左右拖动鼠标（修改值。你可以在任何时间更改变量，甚至当在HitPlayandtrymodifyingthespeedvalue.TheCubesonspeedwillchangeinstantly.WhenyouPlaymode,youlltyourchangesarerevertedbacktotheirvaluebeforeenteringPlaymode.Thisyoucanplay,adjust,andexperimenttofindthebestvalue,thentvalue击按钮并尝试修改 speed 变量的值。这个 Cube 的旋转速度的更改回复到进模式之前的它们值。这个方法你可、调整以及实验去找打最优的值，然后应用不varspeed =functionUpdate()e(0, ime, Using this method of changing a variables he Inspectortyoucanre-useonescriptonobjects, each different v