#include <FastLED.h>
#define LED_PIN1  13
#define LED_PIN2  12
#define NUM_LEDS  20
#define PUSH_C    4   //########
CRGB leds1[NUM_LEDS],leds2[NUM_LEDS];
int musicScale[] = {523,587,659,698,784,880,988,1047};
int out_port[] = {2,4,8,10,11};
int score[2][4], grip[2][4], total[2];

void setup() {
  int i;
  Serial.begin(9600);
  FastLED.addLeds<WS2811, LED_PIN1, RGB>(leds1, NUM_LEDS);
  for(i=0; i<NUM_LEDS; i++) leds1[i] = CRGB::Black;
  FastLED.show();
  FastLED.addLeds<WS2811, LED_PIN2, RGB>(leds2, NUM_LEDS);
  for(i=0; i<NUM_LEDS; i++) leds2[i] = CRGB::Black;
  FastLED.show();
  for(i=0; i<5; i++) pinMode(out_port[i], OUTPUT);
  for(i=0; i<4; i++) digitalWrite(out_port[i], LOW);
  for(i=0; i<9; i++){ tone(11, musicScale[i]); delay(40); noTone(11); delay(60); }
  for(i=0; i<4; i++){ grip[1][i]=0; score[0][i]=0; score[1][i]=0; }
  delay(200);
}

void loop(){
  int i;
  grip_sensing();
  FastLED.addLeds<WS2811, LED_PIN1, RGB>(leds1, NUM_LEDS);
  for(i=0; i<NUM_LEDS; i++){
    if(total[0]>i) leds1[i] = CHSV(random8(), 255, 127);
    else leds1[i] = CRGB::Black;
  }
  FastLED.show();
  FastLED.addLeds<WS2811, LED_PIN2, RGB>(leds2, NUM_LEDS);
  for(i=0; i<NUM_LEDS; i++){
    if(total[1]>i) leds2[i] = CHSV(random8(), 255, 127);
    else leds2[i] = CRGB::Black;
  }
  FastLED.show();
  delay(100);
}

void grip_sensing(){
  int i, sensorValue;
  sensorValue = analogRead(A0);
  if(sensorValue < 600) grip[0][0]=1;
  else grip[0][0]=0;
  Serial.print("ch1 = ");
  Serial.print(grip[0][0]);
  sensorValue = analogRead(A1);
  if(sensorValue < 550) grip[0][1]=1;
  else grip[0][1]=0;
  Serial.print(" , ch2 = ");
  Serial.print(grip[0][1]);
  sensorValue = analogRead(A2);
  if(sensorValue < 550) grip[0][2]=1;
  else grip[0][2]=0;
  Serial.print(" , ch3 = ");
  Serial.print(grip[0][2]);
  sensorValue = analogRead(A3);
  if(sensorValue < 530) grip[0][3]=1;
  else grip[0][3]=0;
  Serial.print(" , ch4 = ");
  Serial.print(grip[0][3]);
  for(i=0; i<4; i++){
    digitalWrite(out_port[i], grip[0][i]);
    if(grip[0][i] != grip[1][i]){
      grip[1][i] = grip[0][i];
      if(++score[0][i] > PUSH_C){
        score[0][i] = 0;
        score[1][i]++;  // ###
        melody_again();
      }
    }
  }
  total[0] = score[1][0] + score[1][1];
  total[1] = score[1][2] + score[1][3];
  Serial.print(" , Total[1] = ");
  Serial.print(total[0]);
  Serial.print(" , Total[2] = ");
  Serial.print(total[1]);
  Serial.println();
  if(total[0] > NUM_LEDS){
    FastLED.addLeds<WS2811, LED_PIN2, RGB>(leds2, NUM_LEDS);
    for(i=0; i<NUM_LEDS; i++) leds2[i] = CRGB::Black;
    FastLED.show();
    FastLED.addLeds<WS2811, LED_PIN1, RGB>(leds1, NUM_LEDS);
    for(i=0; i<NUM_LEDS; i++) leds1[i] = CHSV(random8(), 255, 127);
    FastLED.show();
    melody_end();
    while(1){}
  }
  if(total[1] > NUM_LEDS){
    FastLED.addLeds<WS2811, LED_PIN1, RGB>(leds1, NUM_LEDS);
    for(i=0; i<NUM_LEDS; i++) leds1[i] = CRGB::Black;
    FastLED.show();
    FastLED.addLeds<WS2811, LED_PIN2, RGB>(leds2, NUM_LEDS);
    for(i=0; i<NUM_LEDS; i++) leds2[i] = CHSV(random8(), 255, 127);
    FastLED.show();
    melody_end();
    while(1){}
  }
}

void melody_end(){
  tone(11, musicScale[1]);
  delay(100);
  tone(11, musicScale[3]);
  delay(100);
  tone(11, musicScale[5]);
  delay(100);
  tone(11, musicScale[7]);
  delay(300);
  noTone(11);
}

void melody_again(){
  tone(11, musicScale[0]);
  delay(30);
  noTone(11);
}