"use strict";

var robot = require("robot-js");
var mouse = robot.Mouse();
var keyboard = robot.Keyboard();

mouse.autoDelay.min = 1;
mouse.autoDelay.max = 1;
var img = robot.Image();
var targetColor = [0xF2361B,0xEF3519,0xEE4131,0xED4233,0xEE4031,0xCF8790,0xCF878F,0xD92411,0xDC2613,0xA24D53,0xA84547,0xB25C62,0xAB545B];
var pixelColor = robot.Color();
var i = 0;
var k = 0;
var data,r2,g2,b2,r1,g1,b1,s;


if (robot.Screen.synchronize()) {
 robot.Screen.setCompositing (false);
 robot.Screen.grabScreen(img);
}

var w = img.getWidth()/2;
var h = img.getHeight()/2;
var searchSize = .97;
var step = 3;

console.log("Only single monitor is supported. Please run CMD as administrator (prevents Overwatch from seeing CMD's actions). Change SearchSize and Step to your liking, SearchSize should be between .90 and .99, the bigger SearchSize is, the smaller the search box. Step is how many pixels to skip, will result in a faster scan but slower response. Center is: " + w + ", " + h);

while(1)
{
 s = robot.Mouse.getState();
 if(s[robot.BUTTON_X2])
  bang();
}

function bang()
{
 robot.Screen.grabScreen(img, Math****und(searchSize * w), Math****und(searchSize * h), Math****und((1-searchSize) * w), Math****und((1-searchSize) * h));
 data = img.getData();

 for(i = 0; i < img.getLength(); i+=step)
 {
  if(similar((data[i] & 0x00FFFFFF).toString(16).toUpperCase(),15) )
  {
   keyboard.click(robot.KEY_N);
   return;
  }
 }
 return;
}

function similar (aneighbor, atolerance)
{

 if(atolerance == undefined) 
 {
        atolerance = 10;
    }

 r2 = parseInt(aneighbor.substr(0,2), 16);
 g2 = parseInt(aneighbor.substr(2,2), 16);
 b2 = parseInt(aneighbor.substr(4,2), 16);

 for(k = 0; k < targetColor.length; k++)
 {

  r1 = parseInt(targetColor[k].toString(16).toUpperCase().substr(0,2), 16);
  g1 = parseInt(targetColor[k].toString(16).toUpperCase().substr(2,2), 16);
  b1 = parseInt(targetColor[k].toString(16).toUpperCase().substr(4,2), 16);
  if (Math.abs(r1 - r2) <= atolerance && Math.abs(g1 - g2) <= atolerance && Math.abs(b1 - b2) <= atolerance)
  {
   //console.log(r2 + " " + b2 + " " + g2 + " " + r1 + " " + b1 + " " + g1);
   return true;
  }
 }
 return false;