// ArrayOfLedArrays - see https://github.com/FastLED/FastLED/wiki/Multiple-Controller-Examples for more info on
// using multiple controllers.  In this example, we're going to set up three NEOPIXEL strips on three
// different pins, each strip getting its own CRGB array to be played with, only this time they're going
// to be all parts of an array of arrays.

#include <FastLED.h>
#include "Button.h"

#define NUM_STRIPS 1
#define NUM_LEDS_PER_STRIP 40
CRGB leds[NUM_LEDS_PER_STRIP];
int playerDirection = -1;
int currentLED = 0;
//int evenOddLEDs = 2; //2 for EVEN, 1 for ODD
const int middleLEDint = NUM_LEDS_PER_STRIP/2;
float middleLEDfloat = NUM_LEDS_PER_STRIP/2.0;
const int evenOddLEDs =    (float)(middleLEDint) == (middleLEDfloat) ? 2 : 1;
const int middleCount = (evenOddLEDs + 1); 
int playerOneCourtBottom = 0;
int playerTwoCourtBottom = NUM_LEDS_PER_STRIP-1;
int ballSpeed = 500; //500ms initially, reduce by 1 every pass
int ballPosition = playerOneCourtBottom; //initially playerOne starts, winner starts later
/*if (evenOddLEDs == 2) {
  //int middleIndicator[] = {middleLEDint-1, middleLEDint};
} else {
  //int middleIndicator[] = {middleLEDint-1, middleLEDint, middleLEDint+1};
}*/
//int *middleIndicator[middleCount] = (evenOddLEDs > 2) ? (int[2]) {middleLEDint-1, middleLEDint} : (int[3]) {middleLEDint-1, middleLEDint, middleLEDint+1};

Button PlayerOne(A0);
Button PlayerTwo(A1);

enum GameStatus {
  GameOn,
  GameWin
};

// For mirroring strips, all the "special" stuff happens just in setup.  We
// just addLeds multiple times, once for each strip
void setup() {
  // tell FastLED there's 30 NEOPIXEL leds on pin 10
  FastLED.addLeds<NEOPIXEL, 10>(leds, NUM_LEDS_PER_STRIP);

  // tell FastLED there's 30 NEOPIXEL leds on pin 11
  //FastLED.addLeds<NEOPIXEL, 11>(leds[1], NUM_LEDS_PER_STRIP);

  // tell FastLED there's 30 NEOPIXEL leds on pin 12
  //FastLED.addLeds<NEOPIXEL, 12>(leds[2], NUM_LEDS_PER_STRIP);
  
  //int middleIndicator[] = {middleLEDint-1, middleLEDint};
  Serial.begin(115200); // Any baud rate should work
  Serial.println("Hello Arduino\n");
  Serial.println(evenOddLEDs == 2 ? "2 - even" : "1 - odd");
  Serial.print(middleLEDint);
  Serial.println(" = middleLEDint");
  Serial.print(middleLEDfloat);
  Serial.println(" = middleLEDfloat");
  Serial.print(middleLEDint-1);
  Serial.println(" = middleLEDint-1");
  Serial.print(middleLEDint+(evenOddLEDs*-1)+2);
  Serial.println(" = middleLEDint+(evenOddLEDs*-1)+2");
  Serial.print((evenOddLEDs*-1)+2);
  Serial.println(" = (evenOddLEDs*-1)+2");
  // This inner loop will go over each led in the current strip, one at a time
  for(int i = 0; i < NUM_LEDS_PER_STRIP; i++) {
    
    if ( i >= middleLEDint-1 && i <= middleLEDint+(evenOddLEDs*-1)+2 )
    {
      leds[i] = CRGB::Red;
      //FastLED.show();
    //leds[x][i] = CRGB::Black;
    } else {
      //leds[x][i] = CRGB::Blue;
      //FastLED.show();
      leds[i] = CRGB::CRGB::Green;
    }
    //delay(100);
  }
  FastLED.show();
}

void middleLEDs() {
  for (int i = -1; i < evenOddLEDs; i++)
    leds[middleLEDint+i] = CRGB::Red;
    //FastLED.show();
}

void gameOn() {
  
}

/*
ideas:
if player presses a button before "ball" is in their "court", then drop their court by 1
so probably have lower court and upper court as 0 and NUM_LEDS_PER_STRIP, then when 
button is pressed before ball is on their side, either increase lower_court_bottom by 1, and 
decrease upper_court_bottom by 1, making courts shorter near the handle side, so less time to react
*/
void loop() {
  // This inner loop will go over each led in the current strip, one at a time
  for(int i = 0; i < NUM_LEDS_PER_STRIP; i=i+playerDirection) {
    
    if ( (i == middleLEDint-1 && playerDirection == 1) || (i == middleLEDint+(evenOddLEDs*-1)+2 && playerDirection == -1))
    {
    //Serial.print(i);
    //Serial.println(" - i before change");
      i = i + ((evenOddLEDs*3/evenOddLEDs-(evenOddLEDs-(evenOddLEDs/evenOddLEDs)))*playerDirection);
      //FastLED.show();
    //leds[x][i] = CRGB::Black;
    } //else {
    leds[i] = CRGB::Blue;
    FastLED.show();
    leds[i] = CRGB::CRGB::Green;
    //}
    //Serial.println(i);
    if (i == playerOneCourtBottom || i == playerTwoCourtBottom) {
      playerDirection = playerDirection *-1;
      if (ballSpeed > 10) {
        ballSpeed = ballSpeed - (ballSpeed > 250 ? 50 : 10);
        Serial.print(ballSpeed);
        Serial.println(" - ballSpeed");
      }
    }
    delay(ballSpeed);

    /*if ( i >= middleLEDint-1 && i <= middleLEDint+(evenOddLEDs*-1)+2 )
    {
      leds[x][i] = CRGB::Red;
      FastLED.show();
    //leds[x][i] = CRGB::Black;
    } else {
      leds[x][i] = CRGB::Blue;
      FastLED.show();
      leds[x][i] = CRGB::CRGB::Green;
    }
    delay(100);*/
  }
  /*for (int i = 0; i < middleIndicator.size(); i++) {
    leds[0][i] = CRGB::Red;
    FastLED.show();
  }*/
  //middleLEDs();
  FastLED.show();
}