KM

 #include <amxmodx>
 #include <engine>

 new model_noza[33]

 public plugin_init()
 {
    register_clcmd( "say /menu","NozMeni" );
    register_event("CurWeapon","CurWeapon","be","1=1")
 }

 public plugin_precache() {
	precache_model("models/knife-mod/v_bak.mdl")
	precache_model("models/knife-mod/p_bak.mdl")
	precache_model("models/v_knife.mdl")
	precache_model("models/p_knife.mdl")
}

 public NozMeni( id )
 {
    new menu = menu_create( "\rIzaberite kategoriju", "izaberite_kategoriju" )

    menu_additem( menu, "\wBesplatni nozevi", "", 0 );
    menu_additem( menu, "\wVIP nozevi", "", 0 );

    menu_display( id, menu, 0 );
 }

 public izaberite_kategoriju( id, menu, item )
 {
    switch( item )
    {
        case 0:
        {
	BesplatniNozevi( id );
        }
        case 1:
        {
	 VipNozevi( id );
        }
        case MENU_EXIT:
        {
        }
    }
    menu_destroy( menu );
    return PLUGIN_HANDLED;
 }

BesplatniNozevi( id )
 {
    new menu = menu_create( "\rBesplatni nozevi", "besplatni_nozevi" )

    menu_additem( menu, "\w Default Knife", "", 0 );
    menu_additem( menu, "\w Bak Knife", "", 0 );

    menu_display( id, menu, 0 );
 }

 public besplatni_nozevi( id, menu, item )
 {
    switch( item )
    {
        case 0:
        {
            ObicanNoz(id , 0)
        }
        case 1:
        {
            ObicanNoz(id , 1)
        }
        case MENU_EXIT:
        {
        }
    }
    menu_destroy( menu );
    return PLUGIN_HANDLED;
 }

 public ObicanNoz(id , Knife) {
	model_noza[id] = Knife

	new Clip, Ammo, Weapon = get_user_weapon(id, Clip, Ammo)
	if ( Weapon != CSW_KNIFE )
	return PLUGIN_HANDLED

	new vModel[56],pModel[56]

	switch(Knife)
	{
		case 0: {
			format(vModel,55,"models/v_knife.mdl")
			format(pModel,55,"models/p_knife.mdl")
		}
		case 1: {
			format(vModel,55,"models/knife-mod/v_bak.mdl")
			format(pModel,55,"models/knife-mod/p_bak.mdl")
		}
	}

	entity_set_string(id, EV_SZ_viewmodel, vModel)
	entity_set_string(id, EV_SZ_weaponmodel, pModel)

	return PLUGIN_HANDLED;
}

VipNozevi( id )
 {
 new flags = get_user_flags(id)
 if(flags & ADMIN_LEVEL_H)
 {
    new menu = menu_create( "\rVIP nozevi", "vip_nozevi" )

    menu_additem( menu, "\w Default Knife", "", 0 );
    menu_additem( menu, "\w Bak Knife", "", 0 );

    menu_display( id, menu, 0 );
 }
 else client_print( id, print_chat, "Nemate pristup VIP klasama." ), NozMeni( id )
 }

 public vip_nozevi( id, menu, item )
 {
    switch( item )
    {
        case 0:
        {
            VipNoz(id , 0)
        }
        case 1:
        {
            VipNoz(id , 1)
        }
        case MENU_EXIT:
        {
        }
    }
    menu_destroy( menu );
    return PLUGIN_HANDLED;
 }

 public VipNoz(id , Knife) {
	model_noza[id] = Knife

	new Clip, Ammo, Weapon = get_user_weapon(id, Clip, Ammo)
	if ( Weapon != CSW_KNIFE )
		return PLUGIN_HANDLED

	new vModel[56],pModel[56]

	switch(Knife)
	{
		case 0: {
			format(vModel,55,"models/v_knife.mdl")
			format(pModel,55,"models/p_knife.mdl")
		}
		case 1: {
			format(vModel,55,"models/knife-mod/v_bak.mdl")
			format(pModel,55,"models/knife-mod/p_bak.mdl")
		}
	}

	entity_set_string(id, EV_SZ_viewmodel, vModel)
	entity_set_string(id, EV_SZ_weaponmodel, pModel)

	return PLUGIN_HANDLED;
}

public CurWeapon(id)
	{
	ObicanNoz(id, model_noza[id])
	VipNoz(id, model_noza[id])
}