level masker

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// Let's call this suggested item "Level Masker".
// By adding this code to the PLAYER entity and the
// logic responsible for generating enemies, we can
// achieve a lure-like effect.

// Of course Mackan would have to add a new item to the
// #!items shop and give it a cost, his discretion the price

// when a player uses "Level Masker":
class player{
    constructor(){
        this.mask = {
            maxLimit: 5, // ARBITRARY. Could add a game mechanic to increase this as well!
            used: 0,
            level = null,
            timeout: null
        }
        this.level = API_CALL_RETRIEVE_PLAYER_INFO_FROM_DATABASE()
        // the player already has a level, idc how it's obtained
        //... idk what else code you have
    }
    // ...
    maskLevel(){
        // Error check: is the player attempting to exceed the maximum # of
        // "Level Masker" items he/she may?
        if (this.mask.used >= this.mask.maxLimit)
            return "You're all tweaked out on Level Masker, " +
                   "it would be a bad dangerous to use more."


        // 1: increment the masksUsed counter, which
        // is used for calculating power of generated enemy
        this.mask.used++

        // 1.5: calculate the player's fake, "masked" level
        // 1 "Level Masker" used? player's masked/fake level is 25
        // 2 "Level Masker" used? player's level is 25% higher
        // 3 used? 50% higher, 4 used? 75% higher, 5 used? 100% higher
        switch (this.mask.used){
            case 1:
                this.mask.level = 25;
                break;
            default:
                this.mask.level = (this.mask.used - 1) * 0.25 * this.level;
        }

        // 2: clear the player's timeout if it exists
        if (this.mask.timeout)
            clearTimeout(this.mask.timeout)

        // 3: Set a timeout that will reset used to 0 in an hour.
        this.mask.timeout = setTimeout(() => { this.mask.used = 0 }, 1000 * 60 * 60)
    }
    // snippet - Mackan I don't have your source code anyways
}

// In the code that spawns an enemy for the player to fight:
// There's some code that calculates the max level for an enemy
// IDK what the code is BUTTTT......
function generateEnemy(player){
    var maximumEnemyLevel,
        minimumEnemyLevel = player.level

    if (player.mask.used == 0)
        CALCULATE_ENEMY_NORMALLY_AS_BEFORE_THIS_SUGGESTION(),
        maximumEnemyLevel = player.level // I think this is how it works right??
    else
        maximumEnemyLevel = player.mask.level,
        minimumEnemyLevel = player.mask.level / 2     /* AGAIN, is ARBITRARY */

    // proceed as normal

}