<?php

namespace App\Game;

/** A room as it is during play: the room file's record with names. Saved back when the player leaves. */
final class RoomState
{
    /** @var RoomExtra[] */
    public array $extras = [];
    public int $nExtras = 0;
    public int $title = 0;
    /** @var Entity[] the two permanent creatures */
    public array $ents;
    /** @var Door[] left 1, left 2, right 1, right 2 */
    public array $doors;
    public Spot $heart;
    public Spot $hazard;
    public Spot $lockA;
    public Spot $lockB;
    public int $pickupY = Values::NONE;
    public int $pickupX = 0;
    /** @var FloorObject[] */
    public array $floor;

    public function __construct()
    {
        $this->ents = [new Entity(), new Entity()];
        $this->doors = [new Door(), new Door(), new Door(), new Door()];
        $this->heart = new Spot();
        $this->hazard = new Spot();
        $this->lockA = new Spot();
        $this->lockB = new Spot();
        $this->floor = [];
        for ($i = 0; $i < 4; $i++) {
            $this->floor[] = new FloorObject();
        }
    }

    public static function from(RoomState $o): self
    {
        $s = new self();
        foreach ($o->extras as $e) {
            $s->extras[] = RoomExtra::from($e);
        }
        $s->nExtras = $o->nExtras;
        $s->title = $o->title;
        foreach ($o->ents as $i => $e) {
            $s->ents[$i]->copyFrom($e);
        }
        foreach ($o->doors as $i => $d) {
            $s->doors[$i]->copyFrom($d);
        }
        $s->heart->copyFrom($o->heart);
        $s->hazard->copyFrom($o->hazard);
        $s->lockA->copyFrom($o->lockA);
        $s->lockB->copyFrom($o->lockB);
        $s->pickupY = $o->pickupY;
        $s->pickupX = $o->pickupX;
        foreach ($o->floor as $i => $f) {
            $s->floor[$i]->copyFrom($f);
        }
        return $s;
    }
}