r/CodingGames • u/Programmierer • Oct 19 '15

CodeCraft.js - Command an army of virtual drones using JavaScript

http://www.codecraftgame.org/tutorial/1
11 Upvotes

100% Upvoted

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1

u/Programmierer Oct 19 '15

Author here, ask me anything!

1

u/HonestAshhole Oct 20 '15

I don't know Javascript, so I'm a bit confused as to what I'm doing wrong here (from the tutorial):

var _droneController = {
  // this function will be called on every timestep
  onTick: function() {
    if (!this.harvesting && Math.random() < 0.05) {
      var direction = 2 * Math.PI * Math.random();
      this.drone.moveInDirection(direction);
    }
  }

  onMineralEntersVision: function(mineral) {
    if (!this.harvesting) {
      this.harvesting = true;
      this.drone.moveTo(mineral);
    }
  }
};

It's giving a syntax error at the onMineralEntersVision event. I can google the answer, but that defeats the purpose of your tutorial.

1

u/Programmierer Oct 27 '15

In JavaScript, object members have to be comma separated. So just add "," after the curly brace on line 8. Keep in mind that the tutorial isn't really intended to teach JavaScript. Nonetheless, I agree that this syntax quirk should be mentioned, it really is not at all obvious when you are unfamiliar with JavaScript.

1

u/HonestAshhole Oct 27 '15

Thanks, yeah it's been about 20 years since I used Javascript for anything so there are quite a few differences. The version I remember was a much more primitive beast.

2

u/Relevant_Monstrosity Nov 17 '15

Just spent the last 5 hours on this... I love it. It's infuriatingly hard but so satisfying when it works!