void RenderState::cloneInto(RenderState* renderState, NodeCloneContext& context) const
{
GP_ASSERT(renderState);
for (std::map<std::string, AutoBinding>::const_iterator it = _autoBindings.begin(); it != _autoBindings.end(); ++it)
{
renderState->setParameterAutoBinding(it->first.c_str(), it->second);
}
for (std::vector<MaterialParameter*>::const_iterator it = _parameters.begin(); it != _parameters.end(); ++it)
{
const MaterialParameter* param = *it;
GP_ASSERT(param);
MaterialParameter* paramCopy = new MaterialParameter(param->getName());
param->cloneInto(paramCopy);
renderState->_parameters.push_back(paramCopy);
}
renderState->_parent = _parent;
if (Node* node = context.findClonedNode(_nodeBinding))
{
renderState->setNodeBinding(node);
}
if (_state)
{
renderState->setStateBlock(_state);
}
}
int lua_NodeCloneContext_findClonedNode(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.
bool param1Valid;
gameplay::ScriptUtil::LuaArray<Node> param1 = gameplay::ScriptUtil::getObjectPointer<Node>(2, "Node", false, ¶m1Valid);
if (!param1Valid)
{
lua_pushstring(state, "Failed to convert parameter 1 to type 'Node'.");
lua_error(state);
}
NodeCloneContext* instance = getInstance(state);
void* returnPtr = (void*)instance->findClonedNode(param1);
if (returnPtr)
{
gameplay::ScriptUtil::LuaObject* object = (gameplay::ScriptUtil::LuaObject*)lua_newuserdata(state, sizeof(gameplay::ScriptUtil::LuaObject));
object->instance = returnPtr;
object->owns = false;
luaL_getmetatable(state, "Node");
lua_setmetatable(state, -2);
}
else
{
lua_pushnil(state);
}
return 1;
}
lua_pushstring(state, "lua_NodeCloneContext_findClonedNode - 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;
}