How to add relationship with value?

[n4t4l]

Hello! been messing around with koota for a few days now and have been really enjoying it, however i cant seem to figure out how to add a relationship with non-default value. This is what i've tried

    const gold = ecs.world.spawn();
    const chest = ecs.world.spawn();
    const Contains = relation({ store: { amount: 0 } });
    chest.add(Contains(gold),{ amount: 10 }); //Cannot read properties of undefined (reading 'createStore')
    chest.set(Contains(gold),{ amount: 10 }); //TypeError: Cannot read properties of undefined (reading 'store')
    chest.set(Contains(gold,{ amount: 10 })); //Cannot read properties of undefined (reading 'store')
    
    chest.add(Contains(gold,{ amount: 10 })); //does not error out, but...
    console.log(chest.get(Contains(gold)))//{amount:0}

Any help is appreciated, thanks :)

[r04423]

This should do it, I believe

  const chest = ecs.world.spawn();
  const gold = ecs.world.spawn();

  const Contains = relation({ store: { amount: 0 } });

  // Option 1: add and set
  chest.add(Contains(gold));
  chest.set(Contains(gold), { amount: 5 });
  
  // Option 2: add shortcut
  chest.add(Contains(gold)({ amount: 5 }));

[n4t4l]

Nice, chest.add(Contains(gold)({ amount: 5 })); works great, thank you 🤜🤛

[krispya]

Glad you got an answer. I agree we can improve the ergonomics here and for relations in general. I started a discussion to collect ideas: #114