//===========================================================================//
// File:	gyro.cpp                                                            //
// Project: BattleTech           Brick: Mech subsystems                       //
// Contents: Gyroscope -- eye/body stabilisation                             //
//---------------------------------------------------------------------------//
// Copyright (C) 1995, Virtual World Entertainment, Inc.                     //
// All Rights reserved worldwide                                             //
// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //
//===========================================================================//

#include <bt.hpp>
#pragma hdrstop

#if !defined(GYRO_HPP)
#	include <gyro.hpp>
#endif

#if !defined(MECH_HPP)
#	include <mech.hpp>
#endif

Derivation
	Gyroscope::ClassDerivations(
		PowerWatcher::ClassDerivations,
		"Gyroscope"
	);

Gyroscope::SharedData
	Gyroscope::DefaultData(
		Gyroscope::ClassDerivations,
		Subsystem::MessageHandlers,
		Subsystem::AttributeIndex,
		Subsystem::StateCount
	);

Gyroscope::Gyroscope(
	Mech				*owner,
	int					subsystem_ID,
	SubsystemResource	*r,
	SharedData			&shared_data
):
	PowerWatcher(owner, subsystem_ID, r, shared_data)
{
	Check(owner);
	Check_Pointer(r);

	exageration				= r->exageration;
	maxAnimationNoise		= r->maxAnimationNoise;
	minAnimationNoise		= r->minAnimationNoise;
	rotationPerSecond		= r->rotationPerSecond;
	percentageOnNormal		= r->percentageOnNormal;
	percentageOnDestruction	= r->percentageOnDestruction;
	percentageOnDegradation	= r->percentageOnDegradation;
	percentageOnFailure		= r->percentageOnFailure;

	springConstant			= r->springConstant;
	dampingConstant			= r->dampingConstant;
	posSpring				= r->posSpring;
	negSpring				= r->negSpring;
	rotationSpringConstant	= r->rotationSpringConstant;
	rotationDampingConstant	= r->rotationDampingConstant;
	rotationPosSpring		= r->rotationPosSpring;
	rotationNegSpring		= r->rotationNegSpring;

	damageMultiplier[0]		= r->collisionDamageMultiplier;
	damageMultiplier[1]		= r->ballisticDamageMultiplier;
	damageMultiplier[2]		= r->explosiveDamageMultiplier;
	damageMultiplier[3]		= r->laserDamageMultiplier;
	damageMultiplier[4]		= r->energyDamageMultiplier;

	//
	// Zero the eye/body dynamics accumulators (the binary zeroes each; the
	// per-frame sim seeds them from the springs above).
	//
	for (int i = 0; i < 64; ++i)
	{
		dynamicsState[i] = 0.0f;
	}

	Check_Fpu();
}

Gyroscope::~Gyroscope()
{
}

Logical
	Gyroscope::TestClass(Mech &)
{
	return True;
}

Logical
	Gyroscope::TestInstance() const
{
	return IsDerivedFrom(ClassDerivations);
}

void
	Gyroscope::ResetToInitialState()
{
	Check(this);
	for (int i = 0; i < 64; ++i)
	{
		dynamicsState[i] = 0.0f;
	}
}

//
// Per-frame eye/body stabilisation (spring/damper integration driving the
// cockpit eye joint).  Not yet reconstructed.
//
void
	Gyroscope::GyroscopeSimulation(Scalar)
{
	Fail("Gyroscope::GyroscopeSimulation -- gyro.cpp not yet reconstructed");
}