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Diffstat (limited to 'src/player/Contact.cpp')
| -rw-r--r-- | src/player/Contact.cpp | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/player/Contact.cpp b/src/player/Contact.cpp new file mode 100644 index 0000000..b80615a --- /dev/null +++ b/src/player/Contact.cpp @@ -0,0 +1,239 @@ +// +// libavg - Media Playback Engine. +// Copyright (C) 2003-2014 Ulrich von Zadow +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Lesser General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Lesser General Public License for more details. +// +// You should have received a copy of the GNU Lesser General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +// +// Current versions can be found at www.libavg.de +// + +#include "Contact.h" + +#include "CursorEvent.h" +#include "BoostPython.h" +#include "Player.h" +#include "PublisherDefinition.h" + +#include "../base/Exception.h" +#include "../base/StringHelper.h" +#include "../base/Logger.h" + +#include <iostream> + +using namespace std; + +namespace avg { + +int Contact::s_LastListenerID = 0; + +void Contact::registerType() +{ + PublisherDefinitionPtr pPubDef = PublisherDefinition::create("Contact"); + pPubDef->addMessage("CURSOR_MOTION"); + pPubDef->addMessage("CURSOR_UP"); +} + +Contact::Contact(CursorEventPtr pEvent) + : Publisher("Contact"), + m_bSendingEvents(false), + m_bCurListenerIsDead(false), + m_CursorID(pEvent->getCursorID()), + m_DistanceTravelled(0) +{ + m_Events.push_back(pEvent); +} + +Contact::~Contact() +{ +} + +int Contact::connectListener(PyObject* pMotionCallback, PyObject* pUpCallback) +{ + avgDeprecationWarning("1.8", "Contact.connectListener()", "Contact.subscribe()"); + s_LastListenerID++; + pair<int, Listener> val = + pair<int, Listener>(s_LastListenerID, Listener(pMotionCallback, pUpCallback)); + m_ListenerMap.insert(val); + return s_LastListenerID; +} + +void Contact::disconnectListener(int id) +{ + avgDeprecationWarning("1.8", "Contact.disconnectListener()", + "Contact.unsubscribe()"); + map<int, Listener>::iterator it = m_ListenerMap.find(id); + if (it == m_ListenerMap.end() || (m_CurListenerID == id && m_bCurListenerIsDead)) { + throw Exception(AVG_ERR_INVALID_ARGS, + "Contact.disconnectListener: id " + toString(id) + " is not connected."); + } + if (m_bSendingEvents && m_CurListenerID == id) { + m_bCurListenerIsDead = true; + } else { + m_ListenerMap.erase(it); + } +} + +long long Contact::getAge() const +{ + return m_Events.back()->getWhen() - m_Events[0]->getWhen(); +} + +float Contact::getDistanceFromStart() const +{ + return glm::length(getMotionVec()); +} + +float Contact::getMotionAngle() const +{ + glm::vec2 motion = getMotionVec(); + if (motion == glm::vec2(0,0)) { + return 0; + } else { + return getAngle(motion); + } +} + +glm::vec2 Contact::getMotionVec() const +{ + return m_Events.back()->getPos() - m_Events[0]->getPos(); +} + +float Contact::getDistanceTravelled() const +{ + return m_DistanceTravelled; +} + +vector<CursorEventPtr> Contact::getEvents() const +{ + return m_Events; +} + +void Contact::addEvent(CursorEventPtr pEvent) +{ + pEvent->setCursorID(m_CursorID); + pEvent->setContact(boost::dynamic_pointer_cast<Contact>(shared_from_this())); + calcSpeed(pEvent, m_Events.back()); + updateDistanceTravelled(m_Events.back(), pEvent); + m_Events.back()->removeBlob(); + m_Events.back()->setNode(NodePtr()); + m_Events.push_back(pEvent); +} + +void Contact::sendEventToListeners(CursorEventPtr pCursorEvent) +{ + switch (pCursorEvent->getType()) { + case Event::CURSOR_DOWN: + break; + case Event::CURSOR_MOTION: + notifySubscribers("CURSOR_MOTION", pCursorEvent); + break; + case Event::CURSOR_UP: + notifySubscribers("CURSOR_UP", pCursorEvent); + removeSubscribers(); + break; + default: + AVG_ASSERT_MSG(false, pCursorEvent->typeStr().c_str()); + } + m_bSendingEvents = true; + AVG_ASSERT(pCursorEvent->getContact() == shared_from_this()); + m_bCurListenerIsDead = false; + for (map<int, Listener>::iterator it = m_ListenerMap.begin(); + it != m_ListenerMap.end();) + { + Listener listener = it->second; + m_CurListenerID = it->first; + m_bCurListenerIsDead = false; + switch (pCursorEvent->getType()) { + case Event::CURSOR_MOTION: + if (listener.m_pMotionCallback != Py_None) { + py::call<void>(listener.m_pMotionCallback, pCursorEvent); + } + break; + case Event::CURSOR_UP: + if (listener.m_pUpCallback != Py_None) { + py::call<void>(listener.m_pUpCallback, pCursorEvent); + } + break; + default: + AVG_ASSERT(false); + } + map<int, Listener>::iterator lastIt = it; + ++it; + if (m_bCurListenerIsDead) { + m_ListenerMap.erase(lastIt); + m_bCurListenerIsDead = false; + } + } + m_bSendingEvents = false; +} + +int Contact::getID() const +{ + return m_CursorID; +} + +void Contact::calcSpeed(CursorEventPtr pEvent, CursorEventPtr pOldEvent) +{ + if (pEvent->getSpeed() == glm::vec2(0,0)) { + glm::vec2 posDiff = pEvent->getPos() - pOldEvent->getPos(); + long long timeDiff = pEvent->getWhen() - pOldEvent->getWhen(); + if (timeDiff != 0) { + pEvent->setSpeed(posDiff/float(timeDiff)); + } + } +} + +void Contact::updateDistanceTravelled(CursorEventPtr pEvent1, CursorEventPtr pEvent2) +{ + float dist = glm::length(pEvent2->getPos() - pEvent1->getPos()); + m_DistanceTravelled += dist; +} + +void Contact::dumpListeners(string sFuncName) +{ + cerr << " " << sFuncName << ": "; + for (map<int, Listener>::iterator it = m_ListenerMap.begin(); + it != m_ListenerMap.end(); ++it) + { + cerr << it->first << ", "; + } + cerr << endl; +} + +Contact::Listener::Listener(PyObject * pMotionCallback, PyObject * pUpCallback) +{ + Py_INCREF(pMotionCallback); + m_pMotionCallback = pMotionCallback; + Py_INCREF(pUpCallback); + m_pUpCallback = pUpCallback; +} + +Contact::Listener::Listener(const Listener& other) +{ + Py_INCREF(other.m_pMotionCallback); + m_pMotionCallback = other.m_pMotionCallback; + Py_INCREF(other.m_pUpCallback); + m_pUpCallback = other.m_pUpCallback; +} + +Contact::Listener::~Listener() +{ + Py_DECREF(m_pMotionCallback); + Py_DECREF(m_pUpCallback); +} + + +} + |