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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/04/14)
#include "Wm5GraphicsPCH.h"
#include "Wm5Controller.h"
#include "Wm5ControlledObject.h"
#include "Wm5Math.h"
using namespace Wm5;
WM5_IMPLEMENT_RTTI(Wm5, Object, Controller);
WM5_IMPLEMENT_STREAM(Controller);
WM5_IMPLEMENT_ABSTRACT_FACTORY(Controller);
//----------------------------------------------------------------------------
Controller::Controller ()
:
Repeat(RT_CLAMP),
MinTime(0.0),
MaxTime(0.0),
Phase(0.0),
Frequency(1.0),
Active(true),
mObject(0),
mApplicationTime(-Mathd::MAX_REAL)
{
}
//----------------------------------------------------------------------------
Controller::~Controller ()
{
}
//----------------------------------------------------------------------------
bool Controller::Update (double applicationTime)
{
if (Active)
{
mApplicationTime = applicationTime;
return true;
}
return false;
}
//----------------------------------------------------------------------------
void Controller::SetObject (ControlledObject* object)
{
mObject = object;
}
//----------------------------------------------------------------------------
double Controller::GetControlTime (double applicationTime)
{
double controlTime = Frequency*applicationTime + Phase;
if (Repeat == RT_CLAMP)
{
// Clamp the time to the [min,max] interval.
if (controlTime < MinTime)
{
return MinTime;
}
if (controlTime > MaxTime)
{
return MaxTime;
}
return controlTime;
}
double timeRange = MaxTime - MinTime;
if (timeRange > 0.0)
{
double multiples = (controlTime - MinTime)/timeRange;
double integerTime = Mathd::Floor(multiples);
double fractionTime = multiples - integerTime;
if (Repeat == RT_WRAP)
{
return MinTime + fractionTime*timeRange;
}
// Repeat == WM5_RT_CYCLE
if (((int)integerTime) & 1)
{
// Go backward in time.
return MaxTime - fractionTime*timeRange;
}
else
{
// Go forward in time.
return MinTime + fractionTime*timeRange;
}
}
// The minimum and maximum times are the same, so return the minimum.
return MinTime;
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Name support.
//----------------------------------------------------------------------------
Object* Controller::GetObjectByName (const std::string& name)
{
// mObject is not searched to avoid a cycle in the Object graph.
return Object::GetObjectByName(name);
}
//----------------------------------------------------------------------------
void Controller::GetAllObjectsByName (const std::string& name,
std::vector<Object*>& objects)
{
// mObject is not searched to avoid a cycle in the Object graph.
Object::GetAllObjectsByName(name, objects);
}
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
// Streaming support.
//----------------------------------------------------------------------------
Controller::Controller (LoadConstructor value)
:
Object(value),
Repeat(RT_CLAMP),
MinTime(0.0),
MaxTime(0.0),
Phase(0.0),
Frequency(1.0),
Active(true),
mObject(0),
mApplicationTime(-Mathd::MAX_REAL)
{
}
//----------------------------------------------------------------------------
void Controller::Load (InStream& source)
{
WM5_BEGIN_DEBUG_STREAM_LOAD(source);
Object::Load(source);
source.ReadEnum(Repeat);
source.Read(MinTime);
source.Read(MaxTime);
source.Read(Phase);
source.Read(Frequency);
source.ReadBool(Active);
source.ReadPointer(mObject);
mApplicationTime = -Mathd::MAX_REAL;
WM5_END_DEBUG_STREAM_LOAD(Controller, source);
}
//----------------------------------------------------------------------------
void Controller::Link (InStream& source)
{
Object::Link(source);
source.ResolveLink(mObject);
}
//----------------------------------------------------------------------------
void Controller::PostLink ()
{
Object::PostLink();
}
//----------------------------------------------------------------------------
bool Controller::Register (OutStream& target) const
{
if (Object::Register(target))
{
target.Register(mObject);
return true;
}
return false;
}
//----------------------------------------------------------------------------
void Controller::Save (OutStream& target) const
{
WM5_BEGIN_DEBUG_STREAM_SAVE(target);
Object::Save(target);
target.WriteEnum(Repeat);
target.Write(MinTime);
target.Write(MaxTime);
target.Write(Phase);
target.Write(Frequency);
target.WriteBool(Active);
target.WritePointer(mObject);
WM5_END_DEBUG_STREAM_SAVE(Controller, target);
}
//----------------------------------------------------------------------------
int Controller::GetStreamingSize () const
{
int size = Object::GetStreamingSize();
size += WM5_ENUMSIZE(Repeat);
size += sizeof(MinTime);
size += sizeof(MaxTime);
size += sizeof(Phase);
size += sizeof(Frequency);
size += WM5_BOOLSIZE(Active);
size += WM5_POINTERSIZE(mObject);
return size;
}
//----------------------------------------------------------------------------
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