/*
  The TLC5940 library must be installed first:
  Copy (or symlink) the TLC5940 folder to <Arduino-dir>/hardware/libraries/
*/

#include <TLC5940.h>

// Parameter 1 is number of tlc5940 chips in series, 
// parameter 2 is number of grayscale bits per led.
TLC5940 leds(3, 8);

int RED[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int BLUE[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
int GREEN[16] = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0};

  int x, y, z;
byte ledcounter = 0;
int intcounter = 0;
int updown = 0;
int Rcount, Gcount, Bcount;
int xcount, ycount, zcount;

static void setEye(uint8_t eyeid, uint32_t rgb)
{
  leds.setLED(eyeid*3, (rgb >> 16) & 0xff);
  leds.setLED(eyeid*3+1, (rgb >> 8) & 0xff);
  leds.setLED(eyeid*3+2, rgb & 0xff);
}

static void setEye(uint8_t eyeid, uint8_t r, uint8_t g, uint8_t b)
{
  leds.setLED(eyeid*3, r);
  leds.setLED(eyeid*3+1, g);
  leds.setLED(eyeid*3+2, b);
}

void setup()
{
  Serial.begin(115200);
  
  // FIXME: Pin allocation should be configures here
  leds.init();
  leds.clear(); // Clear framebuffer
  leds.display(); // Display framebuffer

  Serial.println("TLC5940 tester");
}



// Some super-simple test animation
void loop()
{

  colorwave();
  myclear();

}

void shiftleft()
{
  for(int x = 15; x > 0; --x)
  {
    BLUE[x] = BLUE[x-1];
    RED[x] = RED[x-1];
    GREEN[x] = GREEN[x-1];
  }
  BLUE[0] = 0;
  RED[0] = 0;
  GREEN[0] = 0;
}

    

void mydisplay()
{
  for(int x = 0; x < 16; x++)
  {
    leds.setLED(x*3, BLUE[x]);
    leds.setLED((x*3)+1, GREEN[x]);
    leds.setLED((x*3)+2, RED[x]);

  }
  leds.display();
}

void colorwave()
{
    for(int w = 0; w < 16; w ++)
  {
  if(w < 8)
  {
    GREEN[0] = w * (255 / 8);
  }
  if(w >= 8)
  {
    GREEN[0] = (255 - (255 / 8) * (w%8) );
  }
  RED[0] = 0;
  BLUE[0] = 0;
  mydisplay();
  shiftleft();
  delay(100);
  }
  for(int w = 0; w < 16; w ++)
  {
  if(w < 8)
  {
    BLUE[0] = w * (255 / 8);
  }
  if(w >= 8)
  {
    BLUE[0] = (255 - (255 / 8) * (w%8) );
  }
  GREEN[0] = 0;
  RED[0] = 0;
  mydisplay();
  shiftleft();
  delay(100);
  }
  for(int w = 0; w < 16; w ++)
  {
  if(w < 8)
  {
    RED[0] = w * (255 / 8);
  }
  if(w >= 8)
  {
    RED[0] = (255 - (255 / 8) * (w%8) );
  }
  GREEN[0] = 0;
  BLUE[0] = 0;
  mydisplay();
  shiftleft();
  delay(100);
  }
}

void myclear()
{
  for(int x = 0 ; x < 17 ; x++)
  {
    RED[0] = 0;
    BLUE[0] = 0;
    GREEN[0] = 0;
    shiftleft();
    mydisplay();
    delay(100);
  }
}  

void waves()
{

  if(x < 8)
  {
    GREEN[0] = x * (255 / 8);
    xcount = 0;
  }
  if(x >= 8)
  {
    GREEN[0] = (255 - (255 / 8) * (x%8) );
  }
  if(x == 15 && xcount < 10)
  {
    xcount++;
    GREEN[0] = 0;
  }
  else{
  x++;
  x = x%16;
  }

  if(y < 8)
  {
    BLUE[0] = y * (255 / 8);
    ycount = 0;
  }
  if(y >= 8)
  {
    BLUE[0] = (255 - (255 / 8) * (y%8) );
  }
  if(y == 15 && ycount < 9)
  {
    ycount++;
    BLUE[0] = 0;
  }
  else{
  y++;
  y = y%16;
  }


  if(z < 8)
  {
    RED[0] = z * (255 / 8);
    zcount = 0;
  }
  if(z >= 8)
  {
    RED[0] = (255 - (255 / 8) * (z%8) );
  }
  if(z == 15 && zcount < 11)
  {
    zcount++;
    RED[0] = 0;
  }
  else{
  z++;
  z = z%16;
  }
  mydisplay();
  shiftleft();
  delay(100);
}

void banner()
{
  for(Rcount = 0 ; Rcount < 16 ; Rcount++) //once per LED
  {
    for(int x = 0 ; x <= Rcount ; x++)
    {
      leds.setLED(x*3, ((x+1) * (255/16)));
    }
    leds.display();
    delay(100);
  }
}

void chase()
{
  for (int i = 0; i<16; i++)
  {
    leds.clear();
    setEye(i, 255, 255, 255);
    leds.display();
    delay(50);
  }
  
  leds.clear();
  leds.display();
  delay(300);
  
  for (int i = 15; i!=-1; i--)
  {
    leds.clear();
    setEye(i, 0, 255, 255);
    leds.display();
    delay(50);
  }
  
  leds.clear();
  leds.display();
  delay(300);
  
  for (int i = 0; i<16; i++)
  {
    leds.clear();
    setEye(i, 255, 0, 255);
    leds.display();
    delay(50);
  }
  
  leds.clear();
  leds.display();
  delay(300);
  
  for (int i = 15; i!=-1; i--)
  {
    leds.clear();
    setEye(i, 255, 255, 0);
    leds.display();
    delay(50);
  }
  
  leds.clear();
  leds.display();
  delay(300);
}