/*
 Created by Rui Santos
 
 All the resources for this project:
 http://randomnerdtutorials.com/
*/

#include "LedControl.h"
#include "binary.h"

/*
 DIN connects to pin 11
 CLK connects to pin 13
 CS connects to pin 10 
*/
LedControl lc=LedControl(11,13,10,0);

// delay time between faces
unsigned long delaytime=1000;

// happy face
byte hf[8]={ B00000000,
             B00111100,
             B01000010,
             B01000010,
             B01000010,
             B01000010,
             B00111100,
             B00000000};

// neutral face
byte nf[8]={B00000000,
            B00000000,
            B00011000,
            B00100100,
            B00100100,
            B00011000,
            B00000000,
            B00000000};
// sad face
byte sf[8]= {B00000000,
            B00000000,
            B00000000,
            B00011000,
            B00011000,
            B00000000,
            B00000000,
            B00000000};

byte sp[8]={B01111110,
            B10000001,
            B10000001,
            B10000001,
            B10000001,
            B10000001,
            B10000001,
            B01111110};

void setup() {
  lc.shutdown(0,false);
  // Set brightness to a medium value
  lc.setIntensity(0,8);
  // Clear the display
  lc.clearDisplay(0);  
}

void drawFaces(){
  // Display sad face
  lc.setRow(0,0,sf[0]);
  lc.setRow(0,1,sf[1]);
  lc.setRow(0,2,sf[2]);
  lc.setRow(0,3,sf[3]);
  lc.setRow(0,4,sf[4]);
  lc.setRow(0,5,sf[5]);
  lc.setRow(0,6,sf[6]);
  lc.setRow(0,7,sf[7]);
  delay(delaytime);
  
  // Display neutral face
  lc.setRow(0,0,nf[0]);
  lc.setRow(0,1,nf[1]);
  lc.setRow(0,2,nf[2]);
  lc.setRow(0,3,nf[3]);
  lc.setRow(0,4,nf[4]);
  lc.setRow(0,5,nf[5]);
  lc.setRow(0,6,nf[6]);
  lc.setRow(0,7,nf[7]);
  delay(delaytime);
  
  // Display happy face
  lc.setRow(0,0,hf[0]);
  lc.setRow(0,1,hf[1]);
  lc.setRow(0,2,hf[2]);
  lc.setRow(0,3,hf[3]);
  lc.setRow(0,4,hf[4]);
  lc.setRow(0,5,hf[5]);
  lc.setRow(0,6,hf[6]);
  lc.setRow(0,7,hf[7]);
  delay(delaytime);

  lc.setRow(0,0,sp[0]);
  lc.setRow(0,1,sp[1]);
  lc.setRow(0,2,sp[2]);
  lc.setRow(0,3,sp[3]);
  lc.setRow(0,4,sp[4]);
  lc.setRow(0,5,sp[5]);
  lc.setRow(0,6,sp[6]);
  lc.setRow(0,7,sp[7]);
  delay(delaytime);
}

void loop(){
  drawFaces();
}