mirror of
https://github.com/Ed94/DuctTaped_GL.git
synced 2024-09-20 05:17:33 -07:00
409 lines
10 KiB
C++
409 lines
10 KiB
C++
/*
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Title : Actions
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Author: Edward R. Gonzalez
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Description:
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This was a little experiment of mine to mess with action binding...
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Allows for non-member functions to be binded to an action, implements a functioning queue as well.
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TODO: Possibly add support for member functions. Have it so that deduction of delegate typef is not required to add to queue properly (right now it does, see input procedure for example);
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*/
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#pragma once
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#include "Cpp_Alias.hpp"
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namespace Actions
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{
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struct IAction
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{
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virtual void DoAction() = NULL;
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};
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template<typename FunctionType, typename... ActionParams>
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struct AAction : IAction
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{
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public:
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using ActionType = function< FunctionType >;
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AAction(const ActionType& _actionToAssign, const ActionParams&... _params) :
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action(_actionToAssign),
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params(_params... ),
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done (false )
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{};
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bool Used()
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{
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return done;
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}
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bool IsSame(const ActionType& _action, const ActionParams&... _paramsForAction)
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{
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tuple<ActionParams...> paramsToCheck(_paramsForAction...);
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if (params == paramsToCheck && SameAction(_action))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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bool SameAction(const ActionType& _action)
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{
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if (action.target<FunctionType*>() == _action.target<FunctionType*>())
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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void ReInitalize(const ActionParams&... _params)
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{
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params = tuple<ActionParams...>(_params...);
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done = false;
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}
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protected:
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virtual void DoAction_Implementation(const ActionParams&... _params) { action(_params...); }
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template<size_t... TuplePackIndex> // TuplePackSequence<TuplePackIndex...>
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void ExpandTuple_CallDoActionImplementaiton(const tuple<ActionParams...>& _paramsToExpand, std::index_sequence <TuplePackIndex...>)
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{
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// ExpandTuplePack<TuplePackIndex>
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DoAction_Implementation(std::get<TuplePackIndex>(_paramsToExpand)...);
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}
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tuple<ActionParams...> params;
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const ActionType& action;
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bool done;
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public: // IAction
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virtual void DoAction() override
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{
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ExpandTuple_CallDoActionImplementaiton
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(
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params,
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// MakeTuplePackSequence <ActionParams...>()
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std::index_sequence_for<ActionParams...>()
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);
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done = true;
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};
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};
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// TODO: This doesn't work yet...
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template<typename ObjectType, typename FunctionType, typename... ActionParams>
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class AAction_ObjectBound : public AAction<FunctionType, ActionParams...>
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{
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public:
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using Base = AAction<FunctionType, ActionParams...>;
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using ActionType = function<FunctionType>;
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AAction_ObjectBound(ObjectType& _objectRef, const ActionType& _actionToAssign, const ActionParams&... _params) :
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AAction<FunctionType, ActionParams...>::action(_actionToAssign),
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AAction<FunctionType, ActionParams...>::params(_params... ),
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object (_objectRef )
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{}
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bool IsSame(const ObjectType& _object, const ActionType& _action, const ActionParams&... _params)
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{
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if (SameObject(_object) && SameAction(_action))
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{
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tuple<ActionParams...> paramsToCheck(_params...);
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if (AAction<FunctionType, ActionParams...>::params == paramsToCheck)
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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}
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bool SameObject(const ObjectType& _object)
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{
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if (Address(object) == Address(_object))
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{
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return true;
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}
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else
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{
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return false;
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}
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}
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protected:
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virtual void DoAction_Implementation(const ActionParams&... _params) override
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{
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(&object).*AAction<FunctionType, ActionParams...>::action(_params...);
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}
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template<size_t... TuplePackIndex> // TuplePackSequence<TuplePackIndex...>
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void ExpandTuple_CallDoActionImplementaiton(const tuple<ActionParams...>& _paramsToExpand, std::index_sequence <TuplePackIndex...>)
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{
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// ExpandTuplePack<TuplePackIndex>
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DoAction_Implementation(std::get<TuplePackIndex>(_paramsToExpand)...);
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}
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ObjectType& object;
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public: // IAction
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virtual void DoAction() override
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{
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ExpandTuple_CallDoActionImplementaiton
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(
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AAction<FunctionType, ActionParams...>::params,
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// MakeTuplePackSequence <ActionParams...>()
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std::index_sequence_for<ActionParams...>()
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);
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AAction<FunctionType, ActionParams...>::params::done = true;
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};
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};
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struct ActionPool_Dynamic
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{
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template<typename Type>
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using AllocationsOf = std::forward_list<Type>;
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using Managed_AAction = shared_ptr < IAction >;
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using Managed_AActions = AllocationsOf < Managed_AAction >;
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using AActions_Registry = std::map <type_index , Managed_AActions>;
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public:
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template<typename Entry>
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bool Contains(Entry& _entry)
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{
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return _entry != aActions_Available.end() ? true : false;
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}
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Managed_AActions& Make_Managed_Actions()
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{
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mAAaction_Allocations.push_front(make_shared<Managed_AActions>());
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return *(mAAaction_Allocations.front().get());
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}
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template<typename FunctionType, typename... ActionParams>
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IAction* Request_AAction(const function< FunctionType>& _actionToQueue, const ActionParams&... _paramsForAction)
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{
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using ActionType = AAction < FunctionType, ActionParams...>;
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type_index AActionID = typeid(ActionType);
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auto possibleEntry = aActions_Available.find(AActionID);
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if (Contains(possibleEntry))
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{
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using Element = decltype(possibleEntry->second.begin());
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for (Element possibleAction = possibleEntry->second.begin(); possibleAction != possibleEntry->second.end(); possibleAction++)
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{
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ActionType* castedEntry = static_cast<ActionType*>(possibleAction->get());
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if (castedEntry->IsSame(_actionToQueue, _paramsForAction...))
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{
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return castedEntry;
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}
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else if (castedEntry->Used() && castedEntry->SameAction(_actionToQueue))
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{
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castedEntry->ReInitalize(_paramsForAction...);
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return castedEntry;
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}
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}
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shared_ptr< IAction> newAction = make_shared< AAction<FunctionType, ActionParams...>>(_actionToQueue, _paramsForAction...);
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IAction* returnRef = newAction.get ();
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aActions_Available.at(AActionID).push_front(newAction);
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return returnRef;
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}
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shared_ptr< IAction> newAction = make_shared< AAction<FunctionType, ActionParams...>>(_actionToQueue, _paramsForAction...);
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IAction* returnRef = newAction.get ();
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aActions_Available.insert(make_pair(AActionID, Make_Managed_Actions()));
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aActions_Available.at(AActionID).push_front(newAction);
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return returnRef;
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}
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template<typename ObjectType, typename FunctionType, typename... ActionParams>
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IAction* Request_AAction(const ObjectType& _objectRef, const function< FunctionType>& _actionToQueue, const ActionParams&... _paramsForAction)
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{
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using ActionType = AAction_ObjectBound<ObjectType, FunctionType, ActionParams...>;
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type_index AActionID = typeid(ActionType);
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auto possibleEntry = aActions_Available.find(AActionID);
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if (Contains(possibleEntry))
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{
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using Element = decltype(possibleEntry->second.begin());
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for (Element possibleAction = possibleEntry->second.begin(); possibleAction != possibleEntry->second.end(); possibleAction++)
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{
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ActionType* castedEntry = static_cast<ActionType*>(possibleAction->get());
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if (castedEntry->IsSame(_actionToQueue, _paramsForAction...))
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{
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return castedEntry;
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}
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else if (castedEntry->Used() && castedEntry->SameAction(_actionToQueue))
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{
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castedEntry->ReInitalize(_paramsForAction...);
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return castedEntry;
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}
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}
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shared_ptr< IAction> newAction = make_shared< AAction<FunctionType, ActionParams...>>(_actionToQueue, _paramsForAction...);
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IAction* returnRef = newAction.get ();
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aActions_Available.at(AActionID).push_front(newAction);
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return returnRef;
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}
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shared_ptr< IAction> newAction = make_shared< AAction<FunctionType, ActionParams...>>(_actionToQueue, _paramsForAction...);
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IAction* returnRef = newAction.get ();
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aActions_Available.insert(std::make_pair(AActionID, Make_Managed_Actions()));
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aActions_Available.at(AActionID).push_front(newAction);
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return returnRef;
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}
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private:
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AllocationsOf< shared_ptr<Managed_AActions> > mAAaction_Allocations;
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AActions_Registry aActions_Available;
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};
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ActionPool_Dynamic DefaultActionPool_Dynamic;
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struct ActionQueue
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{
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using QueueType = std::deque< IAction*>;
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public:
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template<typename FunctionType, typename... ActionParams>
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void AddToQueue(const function< FunctionType>& _actionToQueue, const ActionParams&... _paramsForAction)
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{
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using GeneratedActionType = AAction<FunctionType, ActionParams...>;
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IAction* actionRequested = DefaultActionPool_Dynamic.Request_AAction(_actionToQueue, _paramsForAction...);
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if (HasAction())
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{
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bool found = false;
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using Element = decltype(actionQueue.begin());
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for (Element element = actionQueue.begin(); element != actionQueue.end(); element++)
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{
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if ( (*element) == actionRequested )
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{
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found = true;
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}
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}
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if (not found)
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{
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actionQueue.push_front(actionRequested);
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}
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}
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else
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{
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actionQueue.push_front(actionRequested);
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}
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}
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template<typename ObjectType, typename FunctionType, typename... ActionParams>
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void AddToQueue(const ObjectType& _objectRef, const function< FunctionType>& _actionToQueue, const ActionParams&... _paramsForAction)
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{
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using GeneratedActionType = AAction_ObjectBound<ObjectType, FunctionType, ActionParams...>;
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IAction* actionRequested = DefaultActionPool_Dynamic.Request_AAction(_objectRef, _actionToQueue, _paramsForAction...);
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if (HasAction())
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{
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bool found = false;
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using Element = decltype(actionQueue.begin());
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for (Element element = actionQueue.begin(); element != actionQueue.end(); element++)
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{
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if ((*element) == actionRequested)
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{
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found = true;
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}
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}
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if (not found)
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{
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actionQueue.push_front(actionRequested);
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}
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}
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else
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{
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actionQueue.push_front(actionRequested);
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}
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}
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void DoNextAction()
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{
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if (actionQueue.size() > 0)
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{
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actionQueue.back()->DoAction();
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actionQueue.pop_back();
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}
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}
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bool HasAction()
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{
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return actionQueue.size() > 0;
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}
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private:
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QueueType actionQueue;
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};
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}
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