//===========================================================================//
// File:	torso.cpp                                                           //
// Project: BattleTech           Brick: Mech subsystems                       //
// Contents: Torso -- torso twist / weapon elevation                        //
//---------------------------------------------------------------------------//
// 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// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL               //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(TORSO_HPP)
#	include <torso.hpp>
#endif

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

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

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

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

	isDamagedCopy	= (owner->GetInstance() == Entity::ReplicantInstance);

	statusFlags					= 0;
	buttonAccelerationPerSecond	= r->buttonAccelerationPerSecond;
	buttonAccelerationStart		= r->buttonAccelerationStartValue;

	baseTwistRate		= r->horizontalRotationPerSecond * RAD_PER_DEG;
	baseElevationRate	= r->verticalRotationPerSecond   * RAD_PER_DEG;
	horizontalLimitRight= r->horizontalLimitRight * RAD_PER_DEG;
	horizontalLimitLeft	= r->horizontalLimitLeft  * RAD_PER_DEG;
	verticalLimitTop	= r->verticalLimitTop     * RAD_PER_DEG;
	verticalLimitBottom	= r->verticalLimitBottom  * RAD_PER_DEG;

	twistCenterHigh		= verticalLimitTop;
	twistCenterLow		= verticalLimitBottom;
	elevationCenter		= verticalLimitTop;
	elevationHalfBottom	= verticalLimitBottom * 0.5f;

	buttonRampActive	= 0;
	buttonRamp			= 0.0f;
	horizontalEnabled	= r->torsoHorizontalEnabled;

	//
	// The named skeleton joints are resolved once the Mech skeleton link is
	// live (per-frame sim / phase-4 wiring); leave the handles null here.
	//
	horizontalJointNode			= NULL;
	horizontalShadowJointNode	= NULL;

	currentTwist		= 0.0f;
	currentElevation	= 0.0f;
	for (int i = 0; i < 24; ++i)
	{
		dynamicsState[i] = 0.0f;
	}

	Check_Fpu();
}

Torso::~Torso()
{
}

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

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

//
// Per-frame torso twist / elevation integration.  Not yet reconstructed.
//
void
	Torso::TorsoSimulation(Scalar)
{
	Fail("Torso::TorsoSimulation -- torso.cpp not yet reconstructed");
}

void
	Torso::TorsoCopySimulation(Scalar)
{
	Fail("Torso::TorsoCopySimulation -- torso.cpp not yet reconstructed");
}