Messing with traits.js

messing_with_traits.js_1.js

// import importedTrait from 'modules/importedTrait';
const importedTrait = Trait({
  direction() {
    return this.colours;
  }
});
const gameThingTrait = Trait({
  // gps: 1337,
  render() {
    this.fun += 1;
    return this.fun;
  },
  update() {
    this.property += 2;
    return this.property;
  }
  // ,
  // locate() {
    // return ++this.gps;
  // }
});
const prototype = Object.create(
  null,
  Trait.compose(
    gameThingTrait,
    importedTrait
  )
);
export default function Engine({
  colours = {},
  property = 30
} = {}) {
  const engine = Object.create(prototype);
  engine.colours = colours;
  engine.fun = 0;
  engine.property = property;
  return engine;
}
const o = Engine({
  colours: {
    inside: '#fff',
    outside: '#000'
  },
  property: 40
});
// console.log(prototype);
console.log(o);
// console.log(o.direction());
// console.log(o.render());
// console.log(o.update());
// console.log(o.locate());
// console.log(o.gps);

messing_with_traits.js_2.js

function hullTrait(x, y) {
  const position = vec2.fromValues(x, y);
  return Trait({
    alpha: undefined,
    getPosition() {
      return position;
    },
    getLocation() {
      return this.location;
    },
    location: Trait.required
  });
}
function makeColorTrait(col) {
  return Trait({
    alpha: Trait.required,
    color: function() { return col; }
  });
}
function mainTrait(x, y, z) {
  return Trait({                // and an anonymous point trait
    getX: function() { return x; },
    getY: function() { return y; },
    z,
    location: 'here',
    set() {
      if (this.alpha === undefined) {
        console.log(this.alpha)
        this.alpha = 1;
        console.log(this.alpha)
      }
      this.alpha++;
      return this.alpha;
    },
    toString: function() { return ''+x+'@'+y; }
  });
}
function makePoint(x, y, z) {
  return Object.create(      // create an instance of a trait
   null,        // that inherits from Object.prototype
   Trait.compose(           // and is the composition of
     makeColorTrait('red'), // a color trait
     mainTrait(x, y, z),
     hullTrait(10, 11)
   )
 );
}
const p = makePoint(0,2, 42);
console.log(p.color()) // 'red'
console.log(p.getPosition());
console.log(p.getLocation());
// p.location = 'there';
console.log(p)
// p.alpha = 1;
console.log(p.getLocation());
const b = p.getLocation;
console.log(p.z);
console.log(p.set());
console.log(p.set());
console.log(b());