GamePlay/gameplay/src/lua/lua_RenderState.cpp

#include "Base.h"
#include "ScriptController.h"
#include "RenderState.h"
#include "lua_RenderState.h"
#include "lua_Global.h"

namespace gameplay
{

void luaRegister_RenderState()
{
    ScriptController* sc = ScriptController::getInstance();

    const luaL_Reg lua_members[] = 
    {
        {"addRef", lua_RenderState_addRef},
        {"getParameter", lua_RenderState_getParameter},
        {"getRefCount", lua_RenderState_getRefCount},
        {"getStateBlock", lua_RenderState_getStateBlock},
        {"release", lua_RenderState_release},
        {"setParameterAutoBinding", lua_RenderState_setParameterAutoBinding},
        {"setStateBlock", lua_RenderState_setStateBlock},
        {NULL, NULL}
    };
    const luaL_Reg* lua_statics = NULL;
    std::vector<std::string> scopePath;

    sc->registerClass("RenderState", lua_members, NULL, lua_RenderState__gc, lua_statics, scopePath);
}

static RenderState* getInstance(lua_State* state)
{
    void* userdata = luaL_checkudata(state, 1, "RenderState");
    luaL_argcheck(state, userdata != NULL, 1, "'RenderState' expected.");
    return (RenderState*)((ScriptController::LuaObject*)userdata)->instance;
}

int lua_RenderState__gc(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                void* userdata = luaL_checkudata(state, 1, "RenderState");
                luaL_argcheck(state, userdata != NULL, 1, "'RenderState' expected.");
                ScriptController::LuaObject* object = (ScriptController::LuaObject*)userdata;
                if (object->owns)
                {
                    RenderState* instance = (RenderState*)object->instance;
                    SAFE_RELEASE(instance);
                }
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_addRef(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                RenderState* instance = getInstance(state);
                instance->addRef();
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_getParameter(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA) &&
                (lua_type(state, 2) == LUA_TSTRING || lua_type(state, 2) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(2, false);

                RenderState* instance = getInstance(state);
                void* returnPtr = (void*)instance->getParameter(param1);
                if (returnPtr)
                {
                    ScriptController::LuaObject* object = (ScriptController::LuaObject*)lua_newuserdata(state, sizeof(ScriptController::LuaObject));
                    object->instance = returnPtr;
                    object->owns = false;
                    luaL_getmetatable(state, "MaterialParameter");
                    lua_setmetatable(state, -2);
                }
                else
                {
                    lua_pushnil(state);
                }

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_getRefCount(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                RenderState* instance = getInstance(state);
                unsigned int result = instance->getRefCount();

                // Push the return value onto the stack.
                lua_pushunsigned(state, result);

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_getStateBlock(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                RenderState* instance = getInstance(state);
                void* returnPtr = (void*)instance->getStateBlock();
                if (returnPtr)
                {
                    ScriptController::LuaObject* object = (ScriptController::LuaObject*)lua_newuserdata(state, sizeof(ScriptController::LuaObject));
                    object->instance = returnPtr;
                    object->owns = false;
                    luaL_getmetatable(state, "RenderStateStateBlock");
                    lua_setmetatable(state, -2);
                }
                else
                {
                    lua_pushnil(state);
                }

                return 1;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_release(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 1:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA))
            {
                RenderState* instance = getInstance(state);
                instance->release();
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 1).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_setParameterAutoBinding(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 3:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA) &&
                (lua_type(state, 2) == LUA_TSTRING || lua_type(state, 2) == LUA_TNIL) &&
                (lua_type(state, 3) == LUA_TSTRING || lua_type(state, 3) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(2, false);

                // Get parameter 2 off the stack.
                RenderState::AutoBinding param2 = (RenderState::AutoBinding)lua_enumFromString_RenderStateAutoBinding(luaL_checkstring(state, 3));

                RenderState* instance = getInstance(state);
                instance->setParameterAutoBinding(param1, param2);
                
                return 0;
            }
            else if ((lua_type(state, 1) == LUA_TUSERDATA) &&
                (lua_type(state, 2) == LUA_TSTRING || lua_type(state, 2) == LUA_TNIL) &&
                (lua_type(state, 3) == LUA_TSTRING || lua_type(state, 3) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                const char* param1 = ScriptController::getInstance()->getString(2, false);

                // Get parameter 2 off the stack.
                const char* param2 = ScriptController::getInstance()->getString(3, false);

                RenderState* instance = getInstance(state);
                instance->setParameterAutoBinding(param1, param2);
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 3).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

int lua_RenderState_setStateBlock(lua_State* state)
{
    // Get the number of parameters.
    int paramCount = lua_gettop(state);

    // Attempt to match the parameters to a valid binding.
    switch (paramCount)
    {
        case 2:
        {
            if ((lua_type(state, 1) == LUA_TUSERDATA) &&
                (lua_type(state, 2) == LUA_TUSERDATA || lua_type(state, 2) == LUA_TTABLE || lua_type(state, 2) == LUA_TNIL))
            {
                // Get parameter 1 off the stack.
                RenderState::StateBlock* param1 = ScriptController::getInstance()->getObjectPointer<RenderState::StateBlock>(2, "RenderStateStateBlock", false);

                RenderState* instance = getInstance(state);
                instance->setStateBlock(param1);
                
                return 0;
            }
            else
            {
                lua_pushstring(state, "Failed to match the given parameters to a valid function signature.");
                lua_error(state);
            }
            break;
        }
        default:
        {
            lua_pushstring(state, "Invalid number of parameters (expected 2).");
            lua_error(state);
            break;
        }
    }
    return 0;
}

}