//#include <ESP8266WiFi.h>
#include <Adafruit_NeoPixel.h>

#define NUMCOLS 20
#define NUMROWS 5
#define NUMCOLORS 6

//const char* ssid     = "foobar";
//const char* password = "ApplesAreGoodForYou";
//const char* host = "wifitest.adafruit.com";

Adafruit_NeoPixel rows[5];

int frame = 0;
int colors[4];
int time=0;
int last_frame=0;
int frame_interval=50;

void setup() {
  //setupSerial.begin(115200);
  //rows[0] = Adafruit_NeoPixel(NUMCOLS, 5, NEO_GRB + NEO_KHZ800);
  //rows[1] = Adafruit_NeoPixel(NUMCOLS, 2, NEO_GRBW + NEO_KHZ800);
  rows[0] = Adafruit_NeoPixel(NUMCOLS, 5, NEO_GRBW + NEO_KHZ800);
  rows[1] = Adafruit_NeoPixel(NUMCOLS, 2, NEO_GRBW + NEO_KHZ800);
  rows[2] = Adafruit_NeoPixel(NUMCOLS, 0, NEO_GRBW + NEO_KHZ800);
  rows[3] = Adafruit_NeoPixel(NUMCOLS, 13, NEO_GRBW + NEO_KHZ800);
  rows[4] = Adafruit_NeoPixel(NUMCOLS, 12, NEO_GRBW + NEO_KHZ800);

  delay(100);
  for(int y=0;y<NUMROWS;y++) {
    rows[y].begin();
  }


  colors[0] = rows[0].Color(200,0,0);
  colors[1] = rows[0].Color(100,100,0);
  colors[2] = rows[0].Color(0,200,0);
  colors[3] = rows[0].Color(0,100,100);
  colors[4] = rows[0].Color(0,0,200);
  colors[5] = rows[0].Color(100,0,100);

  digitalWrite(14, HIGH);
}

void white_swell(int frame) {
  for(int y=0;y<NUMROWS;y++) {
    for(int x=0;x<NUMCOLS;x++) {
      rows[y].setPixelColor(x, rows[0].Color(0,4*(frame % 62),0,0));
    }
    rows[y].show();
  }
}

void color_walk(int frame) {
  int position = frame % NUMCOLS;
  int color_id = ( frame / NUMCOLS ) % NUMCOLORS;//frame % NUMCOLORS;

  for(int y=0;y<NUMROWS;y++) {
    for(int x=0;x<NUMCOLS;x++) {
      if(position == x) rows[y].setPixelColor(x, colors[color_id]);
      else rows[y].setPixelColor(x, rows[0].Color(0,0,0));
    }
    rows[y].show();
  }
}

void color_sweep(int frame) {
  int new_color_id = (frame/NUMCOLS) % NUMCOLORS;
  int old_color_id = (new_color_id+NUMCOLORS-1) % NUMCOLORS;
  int cur_position = frame % NUMCOLS;

  for(int y=0;y<NUMROWS;y++) {
    for(int x=0;x<NUMCOLS;x++) {
      if(cur_position < x) rows[y].setPixelColor(x, colors[old_color_id]);
      else rows[y].setPixelColor(x, colors[new_color_id]);
    }
    rows[y].show();
  }
}

void dot_runner(int frame) {
  Serial.print("HI");
  int steps = 10;
  int total_steps = steps * NUMCOLS;

  int animation_frame = frame % total_steps;
  int col_position = animation_frame/steps % 8;
  float aa = (animation_frame - col_position*steps) / steps;
  Serial.print(aa);

  for(int y=0;y<NUMROWS;y++) {
    for(int x=0;x<NUMCOLS;x++) {
      if(col_position ==  x) rows[y].setPixelColor(x, 200 * aa, 0, 0,0);
      else rows[y].setPixelColor(x, 0,0,20,0);
    }
    rows[y].show();
  }
}

void loop() {
  if(last_frame + frame_interval < time) {
    color_sweep(frame);
    frame++;
    last_frame = time;
  }

  time = millis();
}