gistfile1.js

var player = map.getPlayer();
    var moveToward = function (obj, type) {
        var target = obj.findNearest(type);
        var leftDist = obj.getX() - target.x;
        var upDist = obj.getY() - target.y;

        var direction;
        if (upDist == 0 && leftDist == 0) {
        	return;
        } if (upDist > 0 && upDist >= leftDist) {
            direction = 'up';
        } else if (upDist < 0 && upDist < leftDist) {
            direction = 'down';
        } else if (leftDist > 0 && leftDist >= upDist) {
            direction = 'left';
        } else {
            direction = 'right';
        }

        if (obj.canMove(direction)) {
            obj.move(direction);
        }
    }
    
    map.placeObject(map.getWidth()/2, map.getPlayer().getY(), 'block');
    
    map.defineObject('bulletUp', {
        'type': 'dynamic',
        'symbol': '.',
        'color': 'green',
        'interval': 200,
        'projectile': true,
        'behavior': function (me) {
            me.move('up');
        }
    });
    
    map.defineObject('bulletRight', {
        'type': 'dynamic',
        'symbol': '.',
        'color': 'green',
        'interval': 200,
        'projectile': true,
        'behavior': function (me) {
            me.move('right');
        }
    });
    
    map.defineObject('bulletLeft', {
        'type': 'dynamic',
        'symbol': '.',
        'color': 'green',
        'interval': 200,
        'projectile': true,
        'behavior': function (me) {
            me.move('left');
        }
    });
    
    map.defineObject('attackDrone', {
        'type': 'dynamic',
        'symbol': 'd',
        'color': 'green',
        'interval': 200,
        'onCollision': function (player) {
            player.killedBy('an attack drone');
        },
        'behavior': function (me) {
            moveToward(me, 'boss');
            map.placeObject(me.getX(), me.getY()-2, 'bulletUp');
            map.placeObject(me.getX()-1, me.getY(), 'bulletLeft');
            map.placeObject(me.getX()+1, me.getY(), 'bulletRight');
        }
    });
	
    player.setPhoneCallback(function(){
    	//map.placeObject(player.getX(), player.getY() -2, 'bullet2');
        map.placeObject(player.getX(), player.getY() -2, 'attackDrone');
    });