global TSEnemy = {};

function TSEnemy_Create( eptr, pos, vdir )
{
	E =
	{
		// enemy pointer for additional queries
		eptr = eptr,
		
		// set before tick
		position = pos,
		viewdir = vdir,
		
		// read after tick
		i_crouch = false,
		i_move = vec2(0,0),
		
		// coroutine + timer
		resume_delay = 0.0,
		coro_ai_main = co_create( function( E ){ E.AI_proc(); } ),
		
		// global systems
		move_to_target = null,
	};
	E = class( E, TSEnemy );
	co_resume( E.coro_ai_main, E );
	return E;
}

function TSEnemy.destroy()
{
}

function TSEnemy.tick( deltaTime )
{
	this.resume_delay -= deltaTime;
	if( this.resume_delay <= 0.0 )
	{
		this.resume_delay = toreal( co_resume( this.coro_ai_main ) );
	}
	
	if( this.move_to_target !== null )
	{
		this.i_move = vec2( this.move_to_target - this.position );
	}
}

function TSEnemy.AI_proc()
{
	yield();
	for(;;)
	{
		cp = vec3(-2.5,2.5,0);
		this.move_to_target = cp+vec3(1,0,0);yield(1);
		this.move_to_target = cp+vec3(0,1,0);yield(1);
		this.move_to_target = cp+vec3(-1,0,0);yield(1);
		this.move_to_target = cp+vec3(0,-1,0);yield(1);
		// TODO
		yield();
	}
}