VOBOT v2.0

robot.js

var myData = [];
var enemyData = [];

var Robot = function(robot) {
  
};

Robot.prototype.onIdle = function(ev) {
  var robot=ev.robot;
  
  if(myData[robot.id] == undefined){
    myData[robot.id] = {};
    myData[robot.id].followXY=false;
    myData[robot.id].destPos = {x: 0, y:0};
    myData[robot.id].destAngle = robot.angle;
  }
  myData[robot.id].bot = robot;
  botDo(robot);
}
function distance(p1, p2){
  
  return Math.sqrt(
    Math.pow(p1.x-p2.x, 2) +
    Math.pow(p1.y-p2.y, 2)
  );
}

function botDo(bot){
 
  if(myData[robot.id].enemy == undefined){ //Find closest enemy
	  var min = 99999;
	  var dist;
	  for(var i in enemyData){
		  dist = distance(enemyData.position, bot.position);
		  if(min>dist){
		    min=dist;
		    myData[robot.id].enemy = i;
		  }
	  }
  }else{
	  rotateCannonToPos(bot, enemyData[myData[robot.id].enemy].position);
  }
  
  
  
  if(myData[bot.id].followXY){
    dist = distance(bot.position, myData[bot.id].destPos);
    
    if(dist>10){
      var alpha=angleBetween(bot.position, myData[bot.id].destPos);
      followAngle(bot, normalizeAngle(alpha-90));
      
      if(Math.abs(bot.angle-myData[bot.id].destAngle) < 5)
        bot.ahead(dist*0.01);
    }else{
      myData[bot.id].followXY=false;
    }
  }else{
	  goToXY(bot, random(bot, bot.arenaWidth-40)+20, random(bot, bot.arenaHeight-40)+20);
  }


}

function rotateCannonToPos(bot, pos){
  rotateCannonToAngle(bot, angleBetween(bot.position, pos));
}

function rotateCannonToAngle(robot, ang){
  diff = Math.abs(robot.cannonAbsoluteAngle-ang);
  //myData[robot.id].destCannonAngle = ang;
  
  if(robot.cannonAbsoluteAngle > ang)
    robot.rotateCannon(-diff*0.1);
  else
    robot.rotateCannon(diff*0.1);
}


function followAngle(bot, angle){
  diff = angle - bot.angle;
  if(diff>180)
    diff -= 180; 
  
  myData[bot.id].destAngle = angle;
  bot.turn(diff*0.1);
}

function isEnemy(bot, me){
  return bot.parentId == null && bot.id!=me.parentId;
}

function predictEnemyPos(){
  

}
function random(bot, max){
	return Math.round((bot.position.x + bot.position.y + bot.angle)%max);
}
function angleBetween(p1, p2){
  if(p1 == undefined) return 0;
  if(p2 == undefined) return 0;
  var x = -p2.x + p1.x;
  var y = -p2.y + p1.y;
  alpha = (Math.atan(y/x)/3.1415)*180;
  
  if(x<0) alpha +=180;
  return normalizeAngle(alpha);
}
function normalizeAngle(angle){
 while(angle<0)
   angle+=360;
 while(angle>360)
   angle-=360;
  return angle;
}

function goToXY(bot, X, Y){
  
  myData[bot.id].destPos = {x: X, y: Y};
  myData[bot.id].followXY = true;
}



Robot.prototype.onScannedRobot = function(ev) {
  var robot=ev.robot;
  var scan =ev.scannedRobot;
  
  if(isEnemy(scan, robot)){
	  enemyData[scan.id] = scan;
  }
	
}