import { component, Loop, World } from "@rbxts/matter"

const world = new World()

const Balance = component<{ amount: number }>()
const Name = component<{ name: string} >()
const WantsMoney = component<{ flag: boolean }>()

const Marcus = world.spawn(Balance({ amount: 1000 }), Name({ name: "Marcus" }), WantsMoney({ flag: true }))
const Jade = world.spawn(Balance({ amount: 1000 }), Name({ name: "Jade" }), WantsMoney({ flag: false }))

for (const [entity_id, bal, name, wants_money] of world.query(Balance, Name, WantsMoney)) {
  if (wants_money.flag) world.insert(entity_id, bal.patch({ amount: bal.amount + 500 }))
}

assert(world.get(Marcus, Amount).amount === 1500)
assert(world.get(Jade, Amount).amount === 1000)