AdiBot

robot.js

var Robot = function(robot) {
};

var areEnemies = function(robot, other) {
	return other.id != robot.parentId && other.parentId != robot.id;
}

var normalizeAngle = function(a) {
	return ((a % 360) + 360) % 360;
}

var calculateAngle = function(from, to) {
	return normalizeAngle(Math.atan2(to.y - from.y, to.x - from.x) * 180 / Math.PI)
}

var calculateBearing = function(robot, to, currentAngle) {
  currentAngle -= 90;
	var angleToTarget = calculateAngle(robot.position, to);
	var bearing = angleToTarget - currentAngle;
	if(bearing > 180) {
		bearing -= 360;
	} else if(bearing < -180) {
		bearing += 360;
  }
	return bearing;
}

Robot.prototype.onIdle = function(ev) {
  var robot = ev.robot;
  if(robot.availableClones > 0) {
    robot.clone();
    robot.back(50);
    robot.turn(-90);
    return;
  }
  var px = 100 * robot.position.x / robot.arenaWidth;
  var py = 100 * robot.position.y / robot.arenaHeight;
  if(px < 10 || px > 90 || py < 10 || py > 90) {
    robot.turn(30);
    robot.ahead(20);
  } else {
    robot.turn(60 * (Math.random() - 0.5));
    robot.ahead(100); 
  }
};

Robot.prototype.onScannedRobot = function(ev) {
  var robot = ev.robot;
  var other = ev.scannedRobot;
  if(areEnemies(robot, other)) {
    if(robot.gunCoolDownTime <= 1) {
	    robot.fire();
    } else{
    	var cannonBearing = 90-robot.cannonRelativeAngle;
      if(cannonBearing != 0) {
        robot.rotateCannon(90-robot.cannonRelativeAngle);
      } else {
        var bearing = calculateBearing(robot, other.position, robot.angle);
        if(bearing != 0) {
          robot.turn(bearing);
        } else {
          robot.ahead(50);
        }
      }
    }
  }
};

Robot.prototype.onWallCollision = function(ev) {
  var robot = ev.robot;
  robot.back(50);
  robot.turn(60);
};

Robot.prototype.onRobotCollision = function(ev) {
    var robot = ev.robot;
    var other = ev.collidedRobot;
	if(areEnemies(robot, other)) {
		var bearing = calculateBearing(robot, other.position, robot.cannonAbsoluteAngle);
		robot.rotateCannon(bearing);
		robot.fire();
	}
	robot.back(50);
	robot.turn(-30);
};

Robot.prototype.onHitByBullet = function(ev) {
    var robot;
    robot = ev.robot;
    robot.turn(90 - ev.bulletBearing);
};