#include "ext/Potential.h"
#include <algorithm>

#if defined(WIN32) && (_MSC_VER <= 1200)
#pragma warning(push)
#pragma warning(disable : 4290)
#endif

//-----------------------------------------------------------------------------

ToonzExt::Potential::Potential()
{
	isValid_ = false;
}

//-----------------------------------------------------------------------------

void ToonzExt::Potential::setParameters(const TStroke *ref,
										double w,
										double actionLength)
{
	isValid_ = true;

	assert(ref);
	if (!ref)
		throw std::invalid_argument("Not valid stroke!!!");

	assert(actionLength != 0.0);
	if (actionLength == 0.0)
		actionLength = TConsts::epsilon;

	assert(0.0 <= w &&
		   w <= 1.0);

	if (0.0 > w ||
		w > 1.0) {
		throw std::invalid_argument("Not valid parameter!!!");
		//  w = std::min(std::max(0.0,w),1.0);
	}

	this->setParameters_(ref,
						 w,
						 actionLength);
}

//-----------------------------------------------------------------------------

double
ToonzExt::Potential::value(double at) const
{
	if (!isValid_)
		throw std::range_error("Not yet initialized potential!");

	assert(0.0 <= at &&
		   at <= 1.0);

	if (0 > at ||
		at > 1.0)
		at = std::min(std::max(at, 0.0), 1.0);

	return this->value_(at);
}

//-----------------------------------------------------------------------------
//  End Of File
//-----------------------------------------------------------------------------

#if defined(WIN32) && (_MSC_VER <= 1200)
#pragma warning(pop)
#endif