(Wiremod Expression 2) Lodkagan Library for Logins

@persist [Username Password Permission]:array
# Library for Loginscreens etc.
# by Magus/Lodkagan

# Use the #include "" funxtion.

# Functions
#=============================================================================================================
#            addUser(string,string)          - Adds a user, first string is the username, the second is the password,
#                                           *- with the permission number 1 (normal user).
#            addUser(string,string,number)   - Adds a user, first string is the username, the second is the password,
#                                           *- the last number is the permission number.
#  getUserPermission(string)                 - Gets the Permission from the username.
#getUserPermissionID(number)                 - Gets the Permission from the user ID.
#       deleteUserID(number)                 - Delete a user with the ID.
#          getUserID(number)                 - Gets the userID's name.
#        getUserName(string)                 - Gets the Username's ID.
#  getUserIDPassword(number)                 - Gets the userID's Password.
#        getUserList()                       - Returns a list with all Usernames.
#  checkUserPassword(strin,string)           - Checks the Input with the Username and Password.
#                                           *- Returns 0 if Username or/and Password is wrong.
#                                           *- Returns 1 if both is right
#=============================================================================================================

function void addUser(UN:string, PW:string) {
    Username:pushString(UN:lower())
    Password:pushString(PW:lower())
    Permission:pushNumber(1)
}

function void addUser(UN:string, PW:string, PE:number) {
    Username:pushString(UN:lower())
    Password:pushString(PW:lower())
    Permission:pushNumber(PE)

}

function number getUserPermission(Name:string) {
    local I = 1
    while((Name:lower() != Username[I,string]) & (Username:exists(I))) {I++}
    if(Username:exists(I)) {return Permission[I,number]}
    else {return 0}
}

function number getUserPermissionID(I:number) {
    return Permission[I,number]
}

function void deleteUserID(ID:number) {
    Username:remove(ID)
    Password:remove(ID)
}

function string getUserIDName(I:number) {
    return Username[I,string]
}

function number getUserName(Name:string) {
    local I = 1

    while((Name:lower() != Username[I,string]) & (Username:exists(I))) {I++}
    if(Username:exists(I)) {return I}
    else {return 0}
}

function string getUserIDPassword(I:number) {
    return Password[I,string]
}

function string getUserList() {
    return Username:concat(", ")
}

function number checkUserPassword(UN:string, PW:string) {
    local I = 1

    while((UN:lower() != Username[I,string]) & (Username:exists(I))) {I++}

    if(UN:lower() == Username[I,string]) {
        if(PW:lower() == Password[I,string]) {return I}
        return 0
    }

    return 0
}