Do It Yourself LED CUBE

void (int x, int y, int z)
{if (y==0)
    {digitalWrite(2, LOW);}
    else if (y == 1) 
    { digitalWrite(3, LOW); } 
        else if (y == 2) 
        { digitalWrite(4, LOW); } 
            if (x == 0) 
                { if (z == 0) 
                { digitalWrite(9, HIGH); } 
                    else if (z == 1) 
                    { digitalWrite(11, HIGH); } 
                    else if (z == 2) 
                    { digitalWrite(13, HIGH); } } 
                    if (x == 1) 
                    { if (z == 0) 
                    { digitalWrite(8, HIGH); } 
                    else if (z == 1) 
                    { digitalWrite(10, HIGH); } 
                    else if (z == 2) 
                    { digitalWrite(12, HIGH); } } 
                    if (x == 2) 
                    { if (z == 0) 
                    { digitalWrite(6, HIGH); } 
                    else if (z == 1) 
                    { digitalWrite(7, HIGH); } 
                    else if (z == 2) 
                    { digitalWrite(5, HIGH); } } } 
                    
                    void ol(int num) 
                    { if (num == 1) 
                    { digitalWrite(2, HIGH); } 
                    if (num == 2) 
                    { digitalWrite(3, HIGH); } 
                    if (num == 3) 
                    { digitalWrite(4, HIGH); } } 
                    void onl(int num) 
                    { if (num == 1) 
                    { digitalWrite(2, LOW); } 
                    if (num == 2) 
                    { digitalWrite(3, LOW); } 
                    if (num == 3) 
                    { digitalWrite(4, LOW); } } 
                    void off(int x) 
                    { digitalWrite(5, LOW); 
                    digitalWrite(6, LOW); 
                    digitalWrite(7, LOW); 
                    digitalWrite(8, LOW); 
                    digitalWrite(9, LOW); 
                    digitalWrite(10, LOW); 
                    digitalWrite(11, LOW); 
                    digitalWrite(12, LOW); 
                    digitalWrite(13, LOW); 
                    delay(x); } 
                    void setup() 
                    { 
                    pinMode(2, OUTPUT); 
                    pinMode(3, OUTPUT); 
                    pinMode(4, OUTPUT); 
                    pinMode(5, OUTPUT); 
                    pinMode(6, OUTPUT); 
                    pinMode(7, OUTPUT); 
                    pinMode(8, OUTPUT); 
                    pinMode(9, OUTPUT); 
                    pinMode(10, OUTPUT); 
                    pinMode(11, OUTPUT); 
                    pinMode(12, OUTPUT); 
                    pinMode(13, OUTPUT); } 
                    
                    void loop() 
                    { 
                    onl(1); 
                    onl(2); 
                    onl(3); 
                    l(1,0,1); 
                    delay(500); 
                    off(50); 
                    l(0,0,0);                                                                 
                    l(1,0,0); 
                    l(2,0,0);     
                    l(2,0,1); 
                    l(2,0,2); 
                    l(1,0,2); 
                    l(0,0,2); 
                    l(0,0,1); 
                    delay(350); 
                    ol(2); 
                    ol(3); 
                    delay(350); 
                    off(0); 
                    onl(1); 
                    onl(2); 
                    onl(3); 
                    l(1,0,1); 
                    
                    
                   delay(500); 
                   off(50); 
                   l(0,0,0); 
                   l(1,0,0); 
                   l(2,0,0); 
                   l(2,0,1); 
                   l(2,0,2); 
                   l(1,0,2); 
                   l(0,0,2); 
                   l(0,0,1); 
                   delay(350); 
                   off(0); 
                   ol(2); 
                   l(0,0,0); 
                   l(2,0,0); 
                   l(2,0,2); 
                   l(0,0,2); 
                   delay(400); 
                   off(100);
                   }