HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"【Unity】技巧集合转发，请保持地址：HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\t"_blank"http://blog.csdn.net/stalendp/article/details/17114135这篇文章将收集unity的相关技巧，会不断地更新内容。1）保存运行中的状态unity在运行状态时是不能够保存的。但在运行时编辑的时候，有时会发现比较好的效果想保存。这时可以在“Hierarchy”中复制相关对象树，暂停游戏后替换原来的，就可以了。2）Layer的用法LayerMask.NameToLayer("Ground"); //通过名字获取layer3DRaycast[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyRaycastHit hit; if(Physics.Raycast(cam3d.ScreenPointToRay(Input.mousePosition), out hit, Mathf.Infinity, (1<
()); 5）动画相关状态Init到状态fsShake的的条件为：参数shake＝＝true；代码中的写法：触发fsShake：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyvoid Awake() { anims = new Animator[(int)FColorType.ColorNum]; } .... if(needShake) { curAnim.SetTrigger("shake"); } 关闭fsShake[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyvoid Update() { .... if(curAnim) { AnimatorStateInfo stateInfo = curAnim.GetCurrentAnimatorStateInfo(0); if(stateInfo.nameHash == Animator.StringToHash("Base Layer.fsShake")) { curAnim.SetBool("shake", false); curAnim = null; print ("======>>>>> stop shake!!!!"); } } .... } 6）scene的切换同步方式：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyApplication.LoadLevel(currentName); 异步方式：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyApplication.LoadLevelAsync("ARScene"); 7）加载资源[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyResources.Load(string.Format("{0}{1:D2}", mPrefix, 5)); 8）TagVS.Layer －>Tag用来查询对象 －>Layer用来确定哪些物体可以被raycast，还有用在camerarender中9）旋转transform.eulerAngles可以访问rotate的xyz[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copytransform.RotateAround(pivotTransVector, Vector3.up, -0.5f * (tmp-preX) * speed); 10）保存数据[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyPlayerPrefs.SetInt("isInit_" + Application.loadedLevelName, 1); 11）动画编码http://www.cnblogs.com/lopezycj/archive/2012/05/18/Unity3d_AnimationEvent.htmlhttp://game.ceeger.com/Components/animeditor-AnimationEvents.htmlhttp://answers.unity3d.com/questions/8172/how-to-add-new-curves-or-animation-events-to-an-im.html12)遍历子对象[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyTransform[] transforms = target.GetComponentsInChildren(); for (int i = 0, imax = transforms.Length; i < imax; ++i) { Transform t = transforms[i]; t.gameObject.SendMessage(functionName, gameObject, SendMessageOptions.DontRequireReceiver); } 13)音效的播放 先添加AuidoSource，设置AudioClip,也可以在代码中加入。然后在代码中调用audio.Play(),参考如下代码：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copypublic AudioClip aClip; ... void Start () { ... audio.clip = aClips; audio.Play(); ... } 另外，如果是3d音效的话，需要调整audioSouce中的panLevel才能听到声音，不清楚原因。14）调试技巧(Debug)可以在OnDrawGizmos函数来进行矩形区域等，达到调试的目的，请参考NGUI中的UIDraggablePanel.cs文件中的那个函数实现。[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy#if UNITY_EDITOR /// /// Draw a visible orange outline of the bounds. /// void OnDrawGizmos () { if (mPanel != null) { Bounds b = bounds; Gizmos.matrix = transform.localToWorldMatrix; Gizmos.color = new Color(1f, 0.4f, 0f); Gizmos.DrawWireCube(new Vector3(b.center.x, b.center.y, b.min.z), new Vector3(b.size.x, b.size.y, 0f)); } } #endif 15）延时相关(StartCoroutine)[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyStartCoroutine(DestoryPlayer()); ... IEnumerator DestoryPlayer() { Instantiate(explosionPrefab, transform.position, transform.rotation); gameObject.renderer.enabled = false; yield return new WaitForSeconds(1.5f); gameObject.renderer.enabled = true; } 16）Random做种子[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyRandom.seed = System.Environment.TickCount; 或者 Random.seed = System.DateTime.Today.Millisecond; 17)调试技巧(debug)，可以把值方便地在界面上打印出来[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyvoid OnGUI() { GUILayout.Label("deltaTime is: " + Time.deltaTime); } 18）分发消息sendMessage, BroadcastMessage等19)游戏暂停（对timeScale进行设置）[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyTime.timeScale = 0; 20)实例化一个prefab[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyRigidbody2D propInstance = Instantiate(backgroundProp, spawnPos, Quaternion.identity) as Rigidbody2D; 21)Lerp函数的使用场景[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy// Set the health bar's colour to proportion of the way between green and red based on the player's health. healthBar.material.color = Color.Lerp(Color.green, Color.red, 1 - health * 0.01f); 22）在特定位置播放声音[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy// Play the bomb laying sound. AudioSource.PlayClipAtPoint(bombsAway,transform.position); 23)浮点数相等的判断(由于浮点数有误差,所以判断的时候最好不要用等号,尤其是计算出来的结果)[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyif (Mathf.Approximately(1.0, 10.0/10.0)) print ("same"); 24）通过脚本修改shader中uniform的值[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy//shader的写法 Properties { ... disHeight ("threshold distance", Float) = 3 } SubShader { Pass { CGPROGRAM #pragma vertex vert #pragma fragment frag ... uniform float disHeight; ... // =================================== // 修改shader中的disHeight的值 gameObject.renderer.sharedMaterial.SetFloat("disHeight", height); 25)获取当前level的名称[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyApplication.loadedLevelName 26）双击事件[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyvoid OnGUI() { Event Mouse = Event.current; if ( Mouse.isMouse && Mouse.type == EventType.MouseDown && Mouse.clickCount == 2) { print("Double Click"); } } 27)日期：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copySystem.DateTime dd = System.DateTime.Now; GUILayout.Label(dd.ToString("M/d/yyyy")); 28) RootAnimation中移动的脚本处理[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyclass RootControl : MonoBehaviour { void OnAnimatorMove() { Animator anim = GetComponent(); if(anim) { Vector3 newPos = transform.position; newPos.z += anim.GetFloat("Runspeed") * Time.deltaTime; transform.position = newPos; } } } 29)BillBoard效果（广告牌效果，或者向日葵效果，使得对象重视面向摄像机）[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copypublic class BillBoard : MonoBehaviour { // Update is called once per frame void Update () { transform.LookAt(Camera.main.transform.position, Vector3.up); } } 30）script中的属性编辑器（PropertyDrawers），还可以自定义属性编辑器参考：HYPERLINK"http://blogs.unity3d.com/2012/09/07/property-drawers-in-unity-4/"\t"_blank" http://blogs.unity3d.com/2012/09/07/property-drawers-in-unity-4/其中Popup好像无效，但是enum类型的变量，能够达到Popup的效果[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copypublic class Example : MonoBehaviour { public string playerName = "Unnamed"; [Multiline] public string playerBiography = "Please enter your biography"; [Popup ("Warrior", "Mage", "Archer", "Ninja")] public string @class = "Warrior"; [Popup ("Human/Local", "Human/Network", "AI/Easy", "AI/Normal", "AI/Hard")] public string controller; [Range (0, 100)] public float health = 100; [Regex (@"^(?:\d{1,3}\.){3}\d{1,3}$", "Invalid IP address!\nExample: '127.0.0.1'")] public string serverAddress = "192.168.0.1"; [Compact] public Vector3 forward = Vector3.forward; [Compact] public Vector3 target = new Vector3 (100, 200, 300); public ScaledCurve range; public ScaledCurve falloff; [Angle] public float turnRate = (Mathf.PI / 3) * 2; } 31)Mobile下面使用lightmapping问
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在mobile模式下，lightmapping可能没有反应，可以尝试使用mobile下的shader，可以解决问题。更多请参考：HYPERLINK"http://forum.unity3d.com/threads/138978-Lightmap-problem-in-iPhone"\t"_blank"http://forum.unity3d.com/threads/138978-Lightmap-problem-in-iPhone32)Unity下画线的功能（用于debug）[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyDebug.DrawLine (Vector3.zero, new Vector3 (10, 0, 0), Color.red); 33）Shader中代码的复用（CGINCLUDE的使用）[cpp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyShader "Self-Illumin/AngryBots/InterlacePatternAdditive" { Properties { _MainTex ("Base", 2D) = "white" {} //... } CGINCLUDE #include "UnityCG.cginc" sampler2D _MainTex; //... struct v2f { half4 pos : SV_POSITION; half2 uv : TEXCOORD0; half2 uv2 : TEXCOORD1; }; v2f vert(appdata_full v) { v2f o; // ... return o; } fixed4 frag( v2f i ) : COLOR { // ... return colorTex; } ENDCG SubShader { Tags {"RenderType" = "Transparent" "Queue" = "Transparent" "Reflection" = "RenderReflectionTransparentAdd" } Cull Off ZWrite Off Blend One One Pass { CGPROGRAM #pragma vertex vert #pragma fragment frag #pragma fragmentoption ARB_precision_hint_fastest ENDCG } } FallBack Off } 34)获取AnimationCurve的时长[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy_curve.keys[_curve.length-1].time; 35)C#中string转变成byte[]：[csharp] HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copybyte[] b1 = System.Text.Encoding.UTF8.GetBytes (myString); byte[] b2 = System.Text.Encoding.ASCII.GetBytes (myString); System.Text.Encoding.Default.GetBytes(sPara) new ASCIIEncoding().GetBytes(cpara); char[] cpara=new char[bpara.length]; for(int i=0;i (); } anim.AddClip(clip, clipName); anim[clipName].speed = _speedScale; // 计算时间 float duration = anim[clipName].length; duration /= _speedScale; // 播放动画 anim.Play(clipName); yield return new WaitForSeconds(duration + 0.1f); // 动画结束动作 anim.Stop(); anim.RemoveClip(clipName); 44)RenderTexture的全屏效果cs端：[csharp]HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copyMeshFilter mesh = quard.GetComponent (); // 创建和摄像机相关的renderTexture RenderTexture rTex = new RenderTexture ((int)cam.pixelWidth, (int)cam.pixelHeight, 16); cam.targetTexture = rTex; mesh.renderer.material.mainTexture = rTex; shader端：[csharp]HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy#include "UnityCG.cginc" sampler2D _MainTex; sampler2D _NoiseTex; struct v2f { half4 pos:SV_POSITION; half2 uv : TEXCOORD0; float4 srcPos: TEXCOORD1; }; v2f vert(appdata_full v) { v2f o; o.pos = mul (UNITY_MATRIX_MVP, v.vertex); o.uv = v.texcoord.xy; o.srcPos = ComputeScreenPos(o.pos); return o; } fixed4 frag(v2f i) : COLOR0 { float tmp = saturate(1-(length(i.uv-float2(0.5,0.5)))*2)*0.04; float2 wcoord = (i.srcPos.xy/i.srcPos.w) + tex2D(_NoiseTex, i.uv) * tmp - tmp/2; return tex2D(_MainTex, wcoord); } 45)使用RenderTexture制作屏幕特效：[csharp]HYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"viewplain"viewplainHYPERLINK"http://blog.csdn.net/stalendp/article/details/17114135"\o"copy"copy[ExecuteInEditMode] public class MyScreenEffect : MonoBehaviour { ... void OnRenderImage(RenderTexture source, RenderTexture dest) { Graphics.Blit(source, dest, material); } } 如果需要多次渲染，需要使用RenderTexture.GetTemporary生成临时的RenderTexture，这个
方法
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会从unity维护的池中获取，所以在使用完RenderTexture后，尽快调用RenderTexture.ReleaseTemporary使之返回池中。RenderTexture存在于GPU的DRAM中，具体实现可以参
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