import { EPROTONOSUPPORT } from "constants";


export function move(creep: Creep)
{
	let to: Point;
	let endDist: number;
	let opts:MoveToOpts|undefined;
	if (!creep.memory.move) return;

	// Initialization of memory for use.
	if (creep.memory.move.args)
	{
		to = creep.memory.move.args.to;
		let fdst = creep.memory.move.args.fDist
		endDist = (fdst) ? fdst : 0;
		opts = creep.memory.move.args.opts;
		delete creep.memory.move.args;
	}
	else if (creep.memory.move.mem)
	{
		to = creep.memory.move.mem.to;
		endDist = creep.memory.move.mem.fDist;
		opts = creep.memory.move.mem.opts;
	}
	else
	{
		return;
	}

	//Now we move.
	let err = creep.moveTo(to.x, to.y);

	switch(err)
	{
		case ERR_NO_PATH:
		case ERR_NO_BODYPART:

		creep.memory.state = (creep.memory.retState)?creep.memory.retState:'no_state';
		creep.memory.retState = undefined;

		delete creep.memory.move.mem;
		break;
	}

	if(creep.pos.inRangeTo(to.x, to.y, endDist))
	{
		creep.memory.state = (creep.memory.retState)?creep.memory.retState:'no_state';
		creep.memory.retState = undefined;

		delete creep.memory.move.mem;
		return;
	}

	// Something to save the state of this state.
	creep.memory.move.mem = {
		to: to,
		fDist: endDist,
		opts: opts
	};
}