/*
===========================================================================
Copyright (C) 2015 the OpenMoHAA team

This file is part of OpenMoHAA source code.

OpenMoHAA source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

OpenMoHAA source code 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with OpenMoHAA source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

// actor_noclip.cpp

#include "actor.h"

void Actor::InitNoClip
	(
	GlobalFuncs_t *func
	)
{
	func->ThinkState	= &Actor::Think_NoClip;
	func->IsState		= &Actor::IsIdleState;
}

bool Actor::IsNoClipState
	(
	int state
	)
{
	return state == THINKSTATE_NOCLIP;
}

void Actor::Think_NoClip
	(
	void
	)
{
	//FIXME: not sure of naming
	bool done = false;
	Vector newOrigin = vec_zero;
	Vector total_offset;
	Vector total_offset_unit;
	float total_dist;
	//vec3_t frame_offset;
	float frame_dist;

	m_pszDebugState = "";

	ContinueAnimationAllowNoPath();

	CheckUnregister();
	UpdateAngles();
	UpdateAnim();

	total_offset = m_NoClipDest - origin;
	total_dist = VectorNormalize2(total_offset, total_offset_unit);

	frame_dist = level.frametime * m_maxspeed;

	if (frame_dist >= frame_delta.lengthSquared())
	{
		frame_dist = frame_delta.lengthSquared();
	}

	if (frame_dist < total_dist)
	{
		newOrigin = total_offset_unit * frame_dist + origin;

	}
	else
	{
		done = true;
		newOrigin = m_NoClipDest;
	}

	SafeSetOrigin(newOrigin);
	
	velocity = total_offset_unit / level.frametime;

	if (velocity.lengthSquared() < 1)
	{
		done = true;
		velocity = vec_zero;
	}
	groundentity = NULL;

	if (done)
	{
		Com_Printf(
			"(entnum %d, radnum %d) failsafe finished\n",
			entnum,
			radnum);
		EndCurrentThinkState();
	}

	UpdateBoneControllers();
	UpdateFootsteps();

}