/*
   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(owner)
{
	// default properties
	entity_shape = core::Entity::Diamond;
	entity_radius = 0.25f;

	// the spectator gets player color
	entity_color.assign(owner->color());
	entity_color_second.assign(owner->color_second());

	// set dirty flag
	set_dirty();
}

Spectator::~Spectator()
{
}

void Spectator::frame(float 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;

	// rotate according to input
	float rotation = g_spectatorrotation->value() * elapsed;
	entity_axis.change_direction(target_direction * rotation);
	entity_axis.change_pitch(target_pitch * rotation);
	entity_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)
		entity_location += entity_axis.forward() * entity_speed * elapsed;

	if (target_afterburner)
		entity_location += entity_axis.forward() * maxspeed * target_afterburner * elapsed;

	if (target_strafe)
		entity_location += entity_axis.left() * maxspeed * target_strafe * elapsed;

	// set dirty flag
	set_dirty();
}

}