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Ignore:
Timestamp:
May 17, 2006, 8:23:13 PM (18 years ago)
Author:
bensch
Message:

orxonox/script_engine: moved everything into cc-files

File:
1 edited

Legend:

Unmodified
Added
Removed

  • branches/script_engine/src/lib/script_engine/LuaCallback.h

    r7653 r7654  
    22#define __LUA_CALLBACK_H__
    33
    4 #include <assert.h>
    5 #include <string>
    6 #include <iostream>
    7 #include <stdio.h>
     4struct lua_State;
    85
    96namespace OrxScript
    107{
    118  class LuaVirtualMachine;
    12 
    13 
    14   /**
    15    * @brief This function accually executes a method called by Lua.
    16    *
    17    * @param lua Since this function gets called by lua it has to have a lua_State as parameter
    18    *
    19    * @return the number of return values. (which can be found on the stack)
    20    *
    21    * For Lua doesn't know how to handle C++ objects it pushes the Objecttable (including the objectpointer) on top of the stack and
    22    * calls this function.
    23    *
    24    *
    25    * @todo handle an acces to a nonexistent (deleted) object
    26    */
    27 
    28 
    29   static int luaCallback (lua_State *lua)
    30   {
    31 
    32     // Locate the psudo-index for the function number
    33     int methodNumber = lua_upvalueindex (1);
    34     int returnCount = 0;
    35 
    36     bool functionSuccess = false;
    37 
    38     // Check for the "this" table
    39     if (lua_istable (lua, 1))
    40     {
    41       // Found the "this" table. The object pointer is at the index 0
    42       lua_rawgeti (lua, 1, 0);
    43 
    44       if (lua_islightuserdata (lua, -1))
    45       {
    46         // Found the pointer, need to cast it
    47         Scriptable* thisPointer = (Scriptable*) lua_touserdata (lua, -1);
    48 
    49         // Get the method index
    50         int methodIndex = (int) lua_tonumber (lua, methodNumber);
    51 
    52         // Reformat the stack so our parameters are correct
    53         // Clean up the "this" table
    54         lua_remove (lua, 1);
    55         // Clean up the thisPointer pointer
    56         lua_remove (lua, -1);
    57 
    58         //debug
    59         //std::cout<<thisPointer->whatIsThis()<<std::endl;
    60 
    61         LuaScript* originScript = NULL;
    62 
    63         lua_getglobal (lua, "this");
    64 
    65         if (lua_istable (lua, 1))
    66         {
    67           // Found the "this" table. The object pointer is at the index 0
    68           lua_rawgeti (lua, 1, 0);
    69 
    70           if (lua_islightuserdata (lua, -1))
    71           {
    72             // Found the pointer, need to cast it
    73             originScript = (LuaScript *) lua_touserdata (lua, -1);
    74           }
    75         }
    76 
    77         if(originScript == NULL)
    78         {//do something usefull
    79         }
    80         //debug
    81         // std::cout<<originScript->whatIsThis()<<std::endl;
    82 
    83         LuaVirtualMachine virtualMachine = originScript->getVirtualMachine();
    84         //debug
    85         //std::cout<<"test "<< thisPointer->methods(virtualMachine)<<std::endl;
    86         // Check that the method is correct index
    87         assert ((methodIndex <= thisPointer->methods(virtualMachine) ));
    88         // Call the class
    89         returnCount = thisPointer->scriptCalling ( virtualMachine, thisPointer->getFunctionAtIndex(methodIndex,virtualMachine));
    90 
    91         functionSuccess = true;
    92       }
    93     }
    94 
    95     if (functionSuccess == false)
    96     {
    97       lua_pushstring (lua, "luaCallback -> Failed to call the class function");
    98       lua_error (lua);
    99     }
    100 
    101     // Number of return variables
    102     return returnCount;
    103   }
     9  int luaCallback (lua_State *lua);
    10410}
    10511#endif /* __LUA_CALLBACK_H__*/
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