153 lines
3.8 KiB
C++
153 lines
3.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef QDENGINE_QDCORE_UTIL_RESOURCE_DISPATCHER_H
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#define QDENGINE_QDCORE_UTIL_RESOURCE_DISPATCHER_H
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#include "qdengine/qdcore/util/Handle.h"
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#include "qdengine/qdcore/util/SynchroTimer.h"
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namespace QDEngine {
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/////////////////////////////////////////////////////////////////////////////////////////
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// General Time Resourcing
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/////////////////////////////////////////////////////////////////////////////////////////
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class ResourceUser {
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int ID;
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static int IDs;
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public:
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ResourceUser(time_type period) {
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dtime = period;
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time = 0;
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ID = ++IDs;
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}
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virtual ~ResourceUser() {}
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virtual int quant() {
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return 1;
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}
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protected:
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time_type time;
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time_type dtime;
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virtual void init_time(time_type time_) {
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time = time_ + time_step();
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}
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virtual time_type time_step() {
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return dtime;
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}
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friend class ResourceDispatcher;
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};
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class VoidFunctionCallResourceUser : public ResourceUser {
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public:
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typedef void (*type)();
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VoidFunctionCallResourceUser(type func_, time_type dtime_) :
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ResourceUser(dtime_), func(func_) {}
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virtual ~VoidFunctionCallResourceUser() {}
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int quant() {
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func();
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return 1;
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}
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protected:
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type func;
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};
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template<class T>
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class MemberFunctionCallResourceUser : public ResourceUser {
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public:
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typedef void (T::*type)();
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MemberFunctionCallResourceUser(T &object_, type func_, time_type dtime_) :
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ResourceUser(dtime_), object(object_), func(func_) {}
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virtual ~MemberFunctionCallResourceUser() {}
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int quant() {
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(object.*func)();
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return 1;
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}
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protected:
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T &object;
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type func;
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};
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/////////////////////////////////////////////////////////////////////////////////////////
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// Resource Dispatcher
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/////////////////////////////////////////////////////////////////////////////////////////
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class ResourceDispatcher {
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public:
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ResourceDispatcher() : _start_log(false), _max_time_interval(0) { }
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void setTimer(int syncro_by_clock, time_type time_per_frame, time_type max_time_interval_) {
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_syncro_timer.set(syncro_by_clock, time_per_frame, _max_time_interval = max_time_interval_);
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}
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void attach(ResourceUser *user) {
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PtrHandle<ResourceUser> p(0);
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users.push_back(p);
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users.back() = user;
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user->init_time(_syncro_timer());
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}
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void attach(void (*func)(), time_type dtime) {
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attach(new VoidFunctionCallResourceUser(func, dtime));
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}
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template<class T>
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void attach(T &obj, void (T::*func)(), time_type dtime) {
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attach(new MemberFunctionCallResourceUser<T>(obj, func, dtime));
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}
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void detach(ResourceUser *user) {
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PtrHandle<ResourceUser> p(user);
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users.remove(p);
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p.set(0);
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}
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void start() {
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_start_log = true;
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}
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void reset();
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void skip_time() {
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_syncro_timer.skip();
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}
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void quant();
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void set_speed(float speed) {
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_syncro_timer.setSpeed(speed);
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}
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private:
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typedef Std::list<PtrHandle<ResourceUser> > UserList;
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UserList users;
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SyncroTimer _syncro_timer;
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time_type _max_time_interval;
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bool _start_log;
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void do_start();
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};
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} // namespace QDEngine
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#endif // QDENGINE_QDCORE_UTIL_RESOURCE_DISPATCHER_H
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