/*
   base/spectator.cc
   This file is part of the Osirion project and is distributed under
   the terms and conditions of the GNU General Public License version 2
*/

#include "example/spectator.h"

namespace example
{

core::Cvar *Spectator::g_spectatorspeed = 0;
core::Cvar *Spectator::g_spectatorrotation = 0;

Spectator::Spectator(core::Player *owner) : core::EntityControlable()
{
	// default properties
	set_shape(core::Entity::Diamond);
	set_radius(0.25f);

	// the spectator gets player color
	if (owner) {
		set_owner(owner);
		get_color().assign(owner->color());
		get_color_second().assign(owner->color_second());
	}

	// set dirty flag
	set_dirty();
}

Spectator::~Spectator()
{
}

void Spectator::frame(const unsigned long elapsed)
{
	// only update if necessary
	if (!entity_speed && ! target_thrust && !target_direction && !target_pitch && !target_roll && !target_strafe && !target_afterburner)
		return;

	// assign thrust value from input
	entity_thrust = target_thrust;
	
	const float seconds = (float) elapsed / 1000.0f;

	// rotate according to input
	float rotation = g_spectatorrotation->value() * seconds;
	get_axis().change_direction(target_direction * rotation);
	get_axis().change_pitch(target_pitch * rotation);
	get_axis().change_roll(target_roll * rotation);

	// assign speed from thruster
	float maxspeed = g_spectatorspeed->value();
	entity_speed = entity_thrust * maxspeed;

	// assign new location
	if (entity_speed)
		get_location() += axis().forward() * entity_speed * seconds;

	if (target_afterburner)
		get_location() += axis().forward() * maxspeed * target_afterburner * seconds;

	if (target_strafe)
		get_location() += axis().left() * maxspeed * target_strafe * seconds;

	if (target_vstrafe)
		get_location() += axis().up() * maxspeed * target_vstrafe * seconds;
	
	// set dirty flag
	set_dirty();
}

}