/**
 * Most rooms have a grid index corresponding to their position on the level layout grid. Valid grid
 * indexes range from 0 through 168 (because the grid is 13x13). However, some rooms are not part of
 * the level layout grid. For off-grid rooms, they are assigned special negative integers that
 * correspond to what kind of room they are. This enum contains all of the special negative values
 * that exist.
 */
export declare enum GridRoom {
    /** The Devil or Angel room for the floor. */
    DEVIL = -1,
    /** The I AM ERROR room for the floor. */
    ERROR = -2,
    /** Used by the "goto" console command. */
    DEBUG = -3,
    /** The crawl space for the floor. */
    DUNGEON = -4,
    BOSS_RUSH = -5,
    BLACK_MARKET = -6,
    /** Mega Satan's boss room. */
    MEGA_SATAN = -7,
    /** The room after defeating It Lives that leads to Blue Womb. */
    BLUE_WOMB = -8,
    /** The room after defeating Hush that leads to The Void. */
    VOID = -9,
    /**
     * The room that is connected to the Boss Room that leads to the next Repentance floor.
     *
     * Additionally, this grid index is also used for the room behind the strange door on Depths 2
     * that is connected to the starting room.
     */
    SECRET_EXIT = -10,
    /** The secret crawl space under Great Gideon that is only accessible with a Chaos Card. */
    GIDEON_DUNGEON = -11,
    /** The Genesis room where you get to take new collectibles. (It looks like a clean bedroom.) */
    GENESIS = -12,
    /** The shop that appears if you have Member Card. */
    SECRET_SHOP = -13,
    /** The boss room for the 2nd phase of Rotgut. */
    ROTGUT_DUNGEON_1 = -14,
    /** The boss room for the 3rd phase of Rotgut. */
    ROTGUT_DUNGEON_2 = -15,
    /** The room before a Treasure Room that appears if you have Blue Key. */
    BLUE_ROOM = -16,
    /** The room that you are teleported to when you use a Reverse Emperor card. */
    EXTRA_BOSS = -17,
    /** The shop that you go to when you climb the ladder from The Stairway. */
    ANGEL_SHOP = -18,
    /** Added in Repentance+. */
    DEATHMATCH = -19,
    /** Added in Repentance+. */
    LIL_PORTAL = -20
}
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