JGP thing

    override void WorldTick() {
        for (int pn = 0; pn < MAXPLAYERS; pn++) {
            if (!playerInGame [pn])
                continue;

            PlayerInfo player = players [pn];
            PlayerPawn mo = player.mo;

            if (!player || !mo)
                continue;
            if (!player.ReadyWeapon)
                continue;
            if (!bdoom_replaceweapons) // Check if the replace weapons CVAR is true.
                continue;

            let oldweapr = player.readyweapon.GetClassName (); // Get the currently selected weapons
            // If (a vanilla weapon is READY (such as Pistol at vanilla map start), we also take it away and select the modded counterpart.
            switch (oldweapr) {
                case 'Fist'          : GetWeapon (mo, "BD_Fist"          ).Use (false); break;
                case 'Chainsaw'      : GetWeapon (mo, "BD_Chainsaw"      ).Use (false); break;
                case 'Pistol'        : GetWeapon (mo, "BD_Pistol"        ).Use (false); break;
                case 'Shotgun'       : GetWeapon (mo, "BD_Shotgun"       ).Use (false); break;
                case 'SuperShotgun'  : GetWeapon (mo, "BD_SuperShotgun"  ).Use (false); break;
                case 'Chaingun'      : GetWeapon (mo, "BD_Chaingun"      ).Use (false); break;
                case 'RocketLauncher': GetWeapon (mo, "BD_RocketLauncher").Use (false); break;
                case 'PlasmaRifle'   : GetWeapon (mo, "BD_PlasmaRifle"   ).Use (false); break;
                case 'BFG9000'       : GetWeapon (mo, "BD_BFG9000"       ).Use (false); break;
                default: continue;
            }

            mo.TakeInventory (oldweapr,1);
            player.ReadyWeapon = null;
        }
    }

    private Weapon GetWeapon (PlayerPawn mo, Class<Weapon> type) {
        let weap = Weapon (mo.FindInventory (type));
        return weap ? weap : Weapon (mo.GiveInventoryType (type));
    }