[Unity]技術(shù)學(xué)習(xí)路線圖(長期更新)

接上篇《[Unity]使用Slua框架開發(fā)Unity項目的重要步驟》

下載與安裝

• 下載地址 GitHub
• 安裝過程
  1.下載最新版，這里, 解壓縮，將Assets目錄里的所有內(nèi)容復(fù)制到你的工程中实昨，對于最終產(chǎn)品，可以刪除slua_src犀变，例子，文檔等內(nèi)容秋柄，如果是開發(fā)階段則無所謂获枝。
  2.等待unity編譯完畢，如果一切順利的話骇笔，將出現(xiàn)slua菜單省店， 點擊slua菜單中 All->Make 命令 手動生成針對當(dāng)前版本的U3d接口文件。
  3.每次更新slua版本笨触，務(wù)必記得clear all懦傍，然后make all，否則可能運行不正確

主要的內(nèi)容包括

• LuaSvr環(huán)境對象初始化LuaState狀態(tài)機對象
• Lua中的import關(guān)鍵字腳本中導(dǎo)入UnityEngine設(shè)置游戲?qū)ο蠼M件屬性
• Lua中的require關(guān)鍵字導(dǎo)入自定義模塊module

創(chuàng)建新的Unity工程并且導(dǎo)入SLua框架

• 使用已經(jīng)注入UnityEngie引擎的狀態(tài)機對象LuaSvr調(diào)用Lua腳本
  AppDelegate.cs

  using UnityEngine;
  using System.Collections;
  using SLua;
  
  public class Main : MonoBehaviour
  {
  
      private LuaSvr lua_svr;
      // Use this for initialization
      void Start()
      {
          //創(chuàng)建一個已經(jīng)注入UnityEngine的狀態(tài)機對象..
          lua_svr = new LuaSvr();
  
          //通過Resources文件夾下的main.txt(lua)文件內(nèi)的main函數(shù)啟動程序
          //當(dāng)然也可以通過修改LuaState.loaderDelegate來修改默認(rèn)的路徑
          lua_svr.start("main");
      }
  }
  

  main.txt

  funcion main()
      print("Hello LuaSvr...")
  end
  

• 在main.txt文件內(nèi)導(dǎo)入UnityEngine包并且創(chuàng)建游戲?qū)ο?

  import "UnityEngine"
  
  function main()
      -- 創(chuàng)建Cube對象
      local cube=UnityEngine.GameObject.CreatePrimitive(UnityEngine.PrimitiveType.Cube)
  end
  
  

• 在main.txt文件內(nèi)導(dǎo)入UnityEngine包并且創(chuàng)建空游戲?qū)ο?

  import "UnityEngine"
  
  function main()
      -- 創(chuàng)建空物體對象
      local empty=UnityEngine.GameObject("HHEmptyObject")
  end
  
  

• 操作游戲?qū)ο笊系慕M件
  • 獲取Transform組件

    import "UnityEngine"
    
    function main()
        -- 創(chuàng)建Cube對象
        local cube=UnityEngine.GameObject.CreatePrimitive(UnityEngine.PrimitiveType.Cube)
    
        -- 獲取transform組件上的position屬性
        local pos = cube.transform.position
        pos.x = 10
    
        -- 修改transform組件的position屬性
        cube.transform.position = pos
    end
    

  • 添加Rigidbody組件
    • 導(dǎo)入import "UnityEngine"
    • 添加剛體組件cube:AddComponent(Rigidbody)
  • 獲取指定類型的組件,例如BoxCollider
    • 導(dǎo)入import "UnityEngine"
    • 自定類型字符串獲取local collider = cube:GetComponent("BoxCollider")

由于使用Lua編寫Unity項目時芦劣，無法與C#相比的是對象函數(shù)或者對象屬性的智能提示不夠健全.

所以在此貼出Slua框架中注入LuaState狀態(tài)機對象內(nèi)的一些UnityEngine的函數(shù)和屬性.

• UnityEngine.GameObject對象在LuaState中注入的內(nèi)容

static public void reg(IntPtr l) {
        getTypeTable(l,"UnityEngine.GameObject");
        addMember(l,GetComponent);
        addMember(l,GetComponentInChildren);
        addMember(l,GetComponentInParent);
        addMember(l,GetComponents);
        addMember(l,GetComponentsInChildren);
        addMember(l,GetComponentsInParent);
        addMember(l,SetActive);
        addMember(l,CompareTag);
        addMember(l,SendMessageUpwards);
        addMember(l,SendMessage);
        addMember(l,BroadcastMessage);
        addMember(l,AddComponent);
        addMember(l,CreatePrimitive_s);
        addMember(l,FindGameObjectWithTag_s);
        addMember(l,FindWithTag_s);
        addMember(l,FindGameObjectsWithTag_s);
        addMember(l,Find_s);
        addMember(l,"transform",get_transform,null,true);
        addMember(l,"layer",get_layer,set_layer,true);
        addMember(l,"activeSelf",get_activeSelf,null,true);
        addMember(l,"activeInHierarchy",get_activeInHierarchy,null,true);
        addMember(l,"isStatic",get_isStatic,set_isStatic,true);
        addMember(l,"tag",get_tag,set_tag,true);
        addMember(l,"gameObject",get_gameObject,null,true);
        createTypeMetatable(l,constructor, typeof(UnityEngine.GameObject),typeof(UnityEngine.Object));
    }

- **只有函數(shù)指針位置的部分粗俱，在Lua中定義成了Table變量內(nèi)的函數(shù),例如:`cube:AddCommponent`**
- **在函數(shù)指針名的末尾部分以`_s`結(jié)尾的，在Lua中定義成了元表變量內(nèi)的函數(shù)虚吟，例如:`GameObject.CreatePrimitive`**
- **在添加成員時寸认，包含了類似于`"transform"`字符串的签财，在Lua中定義成了Table變量內(nèi)的鍵值對屬性，例如:`cube.transform`**

• UnityEngine.Transform對象在LuaState中注入的內(nèi)容

      static public void reg(IntPtr l) {
      getTypeTable(l,"UnityEngine.Transform");
      addMember(l,SetParent);
      addMember(l,Translate);
      addMember(l,Rotate);
      addMember(l,RotateAround);
      addMember(l,LookAt);
      addMember(l,TransformDirection);
      addMember(l,InverseTransformDirection);
      addMember(l,TransformVector);
      addMember(l,InverseTransformVector);
      addMember(l,TransformPoint);
      addMember(l,InverseTransformPoint);
      addMember(l,DetachChildren);
      addMember(l,SetAsFirstSibling);
      addMember(l,SetAsLastSibling);
      addMember(l,SetSiblingIndex);
      addMember(l,GetSiblingIndex);
      addMember(l,Find);
      addMember(l,IsChildOf);
      addMember(l,FindChild);
      addMember(l,GetChild);
      addMember(l,"position",get_position,set_position,true);
      addMember(l,"localPosition",get_localPosition,set_localPosition,true);
      addMember(l,"eulerAngles",get_eulerAngles,set_eulerAngles,true);
      addMember(l,"localEulerAngles",get_localEulerAngles,set_localEulerAngles,true);
      addMember(l,"right",get_right,set_right,true);
      addMember(l,"up",get_up,set_up,true);
      addMember(l,"forward",get_forward,set_forward,true);
      addMember(l,"rotation",get_rotation,set_rotation,true);
      addMember(l,"localRotation",get_localRotation,set_localRotation,true);
      addMember(l,"localScale",get_localScale,set_localScale,true);
      addMember(l,"parent",get_parent,set_parent,true);
      addMember(l,"worldToLocalMatrix",get_worldToLocalMatrix,null,true);
      addMember(l,"localToWorldMatrix",get_localToWorldMatrix,null,true);
      addMember(l,"root",get_root,null,true);
      addMember(l,"childCount",get_childCount,null,true);
      addMember(l,"lossyScale",get_lossyScale,null,true);
      addMember(l,"hasChanged",get_hasChanged,set_hasChanged,true);
      createTypeMetatable(l,null, typeof(UnityEngine.Transform),typeof(UnityEngine.Component));
  }