int led_SER_1 = 2;
int led_RCK_1 = 3;
int led_SCK_1 = 4;
int btn_latch_1 = 8;
int btn_data_1 = 9;
int btn_clock_1 = 7;

int led_test = 24;

int led_count = 146;
boolean on[146];
boolean on_next[146];
boolean visited[146];
boolean visited_next[146];

// complete network, functional, but doesn't match the installation
int network_ints[146][10] = {{0,0,0,0,0,0,0,0,0,1024},{128,0,0,0,0,0,0,0,0,0},{256,0,0,0,0,0,0,0,0,0},{16384,0,0,0,0,0,0,0,3072,256},{96,0,0,0,0,0,0,0,0,256},{16,0,0,0,0,0,0,0,0,0},{1040,0,0,0,0,0,0,0,0,0},{4354,0,0,0,0,0,0,0,0,0},{4740,0,0,0,0,0,0,0,0,256},{256,0,0,0,0,0,0,0,0,0},{64,0,0,0,0,0,0,0,0,0},{4096,0,0,0,0,0,0,0,0,0},{10624,3,0,0,0,0,0,0,0,0},{4096,0,0,0,0,0,0,0,0,0},{8,296,0,0,0,0,0,0,32,0},{4096,0,0,0,0,0,0,0,0,0},{4096,212,0,0,0,0,0,0,0,0},{0,18,0,0,0,0,0,0,0,0},{16384,32,0,0,0,0,0,8192,32,0},{0,6,0,0,0,0,0,0,0,0},{16384,8,0,0,0,0,0,516,0,0},{0,258,0,0,0,0,0,0,0,0},{0,2,0,0,0,0,0,0,0,0},{16384,8256,0,0,0,0,0,4,0,0},{0,2048,0,0,0,0,0,0,0,0},{0,2048,0,0,0,0,0,0,0,0},{0,5632,1,0,0,262,0,0,0,0},{0,2048,0,0,0,0,0,0,0,0},{0,256,512,0,0,0,8,4,0,0},{0,0,1,0,0,0,0,0,0,0},{0,18432,2,0,0,0,8,0,0,0},{0,0,1,0,0,0,0,0,0,0},{0,0,9728,12,0,0,0,0,0,0},{0,0,32,8,0,0,0,0,0,0},{0,0,64,8,0,0,0,0,0,0},{0,0,8,0,0,0,0,0,0,0},{0,0,16,0,0,0,0,0,0,0},{0,0,256,8,0,0,0,0,0,0},{0,0,128,0,0,0,0,0,0,0},{0,8192,4,0,0,1,0,0,0,0},{0,0,4100,0,0,0,0,0,0,0},{0,0,4096,0,0,0,0,0,0,0},{0,0,11264,4,0,0,0,0,0,0},{0,0,4100,0,0,0,0,0,0,0},{0,0,0,4,0,0,0,0,0,0},{0,0,0,10,0,0,0,0,0,0},{0,0,0,1,0,0,0,0,0,0},{0,0,20484,0,0,0,0,0,0,0},{0,0,156,145,0,0,0,0,0,0},{0,0,0,72,0,0,0,0,0,0},{0,0,0,640,8192,0,0,0,0,0},{0,0,0,144,0,0,0,0,0,0},{0,0,0,1128,0,0,0,0,0,0},{0,0,0,1024,0,0,0,0,0,0},{0,0,0,32,4096,0,0,0,0,0},{0,0,0,384,5120,0,0,0,0,0},{0,0,0,8192,2,0,0,0,0,0},{0,0,0,0,2,0,0,0,0,0},{0,0,0,2048,2,0,0,0,0,0},{0,0,0,0,2,0,0,0,0,0},{0,0,0,0,2,0,0,0,0,0},{0,0,0,30720,61,0,0,0,0,0},{0,0,0,0,2,0,0,0,0,0},{0,0,0,0,98,0,0,0,0,0},{0,0,0,0,2,0,0,0,0,0},{0,0,0,0,778,0,0,0,0,0},{0,0,0,0,8,0,0,0,0,0},{0,0,0,0,2560,0,0,0,0,0},{0,0,0,0,544,0,0,0,0,0},{0,0,0,0,1440,0,0,0,0,0},{0,0,0,1024,512,0,0,0,0,0},{0,0,0,0,16512,0,0,0,0,0},{0,0,0,1536,24576,0,0,0,0,0},{0,0,0,32,4096,0,0,0,0,0},{0,0,0,0,6144,3,0,0,0,0},{0,0,512,0,16384,2,0,0,0,0},{0,2048,0,0,16384,137,0,0,0,0},{0,2048,0,0,0,0,0,0,0,0},{0,0,0,0,0,18,0,0,0,0},{0,0,0,0,0,40,0,0,0,0},{0,0,0,0,0,5200,0,0,0,0},{0,0,0,0,0,9888,0,0,0,0},{0,0,0,0,0,66,0,0,0,0},{0,2048,0,0,0,0,0,0,0,0},{0,0,0,0,0,16448,0,0,0,0},{0,0,0,0,0,2144,0,0,0,0},{0,0,0,0,0,5120,1,0,0,0},{0,0,0,0,0,2080,16,0,0,0},{0,0,0,0,0,64,2,0,0,0},{0,0,0,0,0,512,0,0,0,0},{0,0,0,0,0,2048,8,0,0,0},{0,0,0,0,0,8192,0,0,0,0},{0,0,0,0,0,0,8,0,0,0},{0,8192,1,0,0,0,5,4,0,0},{0,0,0,0,0,4096,320,0,0,0},{0,0,0,0,0,0,320,0,0,0},{0,0,0,0,0,0,1072,0,0,0},{0,0,0,0,0,0,1024,0,0,0},{0,0,0,0,0,0,2096,0,0,0},{0,0,0,0,0,0,1024,0,0,0},{0,0,0,0,0,0,4800,1,0,0},{0,0,0,0,0,0,24832,0,0,0},{0,0,0,0,0,0,1024,0,0,0},{0,0,0,0,0,0,2048,0,0,0},{0,0,0,0,0,0,2048,1024,0,0},{0,0,0,0,0,0,1024,2,0,0},{0,0,0,0,0,0,0,13,0,0},{0,8480,0,0,0,0,8,50,0,0},{0,0,0,0,0,0,0,2,0,0},{0,0,0,0,0,0,0,196,0,0},{0,0,0,0,0,0,0,4,0,0},{0,0,0,0,0,0,0,16,0,0},{0,0,0,0,0,0,0,16,0,0},{0,0,0,0,0,0,0,512,0,0},{0,32,0,0,0,0,0,16640,0,0},{0,0,0,0,0,0,16384,0,384,0},{0,0,0,0,0,0,0,16384,0,0},{0,0,0,0,0,0,0,16384,0,0},{0,8,0,0,0,0,0,16384,4,0},{0,0,0,0,0,0,0,14848,25,0},{0,0,0,0,0,0,0,16384,0,0},{0,0,0,0,0,0,0,0,64,0},{0,0,0,0,0,0,0,8192,8,0},{0,0,0,0,0,0,0,16384,4,0},{0,0,0,0,0,0,0,16384,0,0},{16384,8,0,0,0,0,0,0,512,0},{0,0,0,0,0,0,0,0,642,0},{0,0,0,0,0,0,0,1024,576,0},{0,0,0,0,0,0,0,1024,1024,0},{0,0,0,0,0,0,0,0,1248,0},{8,0,0,0,0,0,0,0,2816,0},{8,0,0,0,0,0,0,0,1024,1},{0,0,0,0,0,0,0,0,8192,264},{0,0,0,0,0,0,0,0,4096,0},{0,0,0,0,0,0,0,0,0,32},{0,0,0,0,0,0,0,0,2048,0},{0,0,0,0,0,0,0,0,0,32},{0,0,0,0,0,0,0,0,0,32},{0,0,0,0,0,0,0,0,4096,32},{0,0,0,0,0,0,0,0,0,32},{0,0,0,0,0,0,0,0,16384,1246},{0,0,0,0,0,0,0,0,0,32},{0,0,0,0,0,0,0,0,0,32},{280,0,0,0,0,0,0,0,4096,1024},{0,0,0,0,0,0,0,0,0,1024},{1,0,0,0,0,0,0,0,0,800}};

//define an array that corresponds to values for each 
//of the shift register's pins
boolean a_button_is_pressed;
boolean btn_DOWN[146];

int bitwise_filters[15];

long millis_betweenUpdates = 500; // could possibly be changed with a knob. otherwise, there's no need for the variable (if memory is an issue), since it's only called once.
long millis_sinceUpdate = 0;
long millis_prevFrame;

//potentiometer speed control
int speed; 



void setup(){
  pinMode(led_SER_1, OUTPUT);
  pinMode(led_SCK_1, OUTPUT);
  pinMode(led_RCK_1, OUTPUT);
  
  //define pin modes
  pinMode(btn_latch_1, OUTPUT);
  pinMode(btn_clock_1, OUTPUT); 
  pinMode(btn_data_1, INPUT);
  
   
  Serial.begin(9600);	 
  
  
  digitalWrite(led_RCK_1, LOW);
  digitalWrite(btn_latch_1, 0);
  
  for(int i = 0; i < 15; i++){
    bitwise_filters[i] = 1 << i;
  }
  
  Serial.println("ready");
  /*
  for(int i=0; i < 146; i++){
    for(int j=0; j < 10; j++){
      Serial.print(network_ints[i][j]);
      Serial.print(",");
    }
    Serial.println("}");
  }
  */

  // turn on the test pin
  pinMode(led_test, OUTPUT); 
  digitalWrite(led_test, HIGH);
}

void loop(){
  
  long millis_curr = millis();
  millis_sinceUpdate += millis_curr - millis_prevFrame;
  if(millis_prevFrame > millis_curr) millis_sinceUpdate = 0; // to account for millis() rolling over to zero after 9 hours.
  if(millis_sinceUpdate > millis_betweenUpdates){
    millis_sinceUpdate = 0;
    updateNet();
    
    //potentiometer
    speed = analogRead(0);          // read analog input pin 0 
    millis_betweenUpdates = speed;
  }
  millis_prevFrame = millis();
  
  //Pulse the latch pin:
  //set it to 1 to collect parallel data
  a_button_is_pressed = false;
  pulse_btn_latch_1();
  shiftIn_1();
  
  /*
  if(a_button_is_pressed){
    Serial.println("pressed");
  } else {
    Serial.println("notpressed");
  }*/
  

  update_leds();
  
  if(a_button_is_pressed){
    millis_sinceUpdate = 0;
    
    
    int i = 0;
    if(allHaveBeenVisited()){
      millis_sinceUpdate = 0;
      
      for(i = 0; i < led_count; i++){
        on[i] = false;
        visited[i] = false;
        on_next[i] = false;
        visited_next[i] = false;
      }
    }
    
    for(i = 0; i < led_count; i++){
      if(btn_DOWN[i]){
        on[i] = true;
        visited[i] = true;
        on_next[i] = true;
        visited_next[i] = true;
      }
    }
    
  }
  
}
/*
void all_leds(int high_or_low){
  
  digitalWrite(led_RCK_1, LOW); 
  for( int x = led_count-1; x >= 0; x --){
    // set SER
    digitalWrite(led_SER_1, high_or_low);
    pulse_led_SCK();
  }
  pulse_led_RCK();
}
*/
void update_leds(){
  digitalWrite(led_RCK_1, LOW); 
  //digitalWrite(led_RCK_2, LOW); 
  
  int x= led_count-1;
  while(x >= 0){
    if(on[x]){
      digitalWrite(led_SER_1, HIGH);
    } else {
      digitalWrite(led_SER_1, LOW);
    }
    pulse_led_SCK_1();
    x--;
  }
  pulse_led_RCK_1();
}

void pulse_led_SCK_1(){
  // pulse SCK (it pushes the SER value down the line)
  digitalWrite(led_SCK_1, HIGH); 
  digitalWrite(led_SCK_1, LOW); 
}

void pulse_led_RCK_1(){
  // pulse SCK (it pushes the SER value down the line)
  digitalWrite(led_RCK_1, HIGH);
  //delayMicroseconds(20);
  digitalWrite(led_RCK_1, LOW); 
}