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dot-economy

A round-based buy economy — money, a shop, a buy window, refunds and the loss-bonus ladder. It sells ids and grants nothing, so a purchase validates on a server that does not have the content.

dot-economy is the per-round money question: what a player can afford this round, when they may spend it, and what a kill or a lost round pays. dot-loadout answers the permanent one — what you own — and had no answer for this.

Requires dot-core.

Usage

var economy := DotEconomyManager.new()
economy.team_fn = match_node.team_of
economy.alive_fn = world.is_alive
economy.in_buy_zone_fn = func(key): return world.in_buy_zone(key)
economy.setup(arsenal)
add_child(economy)

economy.on_round_start(tick)        # opens the buy window
economy.advance(tick)               # closes it on time
economy.on_kill("ada", "bob", &"rifle")
economy.on_round_end(winning_team)  # pays the winners and the ladder

A buy menu asks before it draws, so a disabled button carries its reason:

var why := economy.may_buy(key, &"sniper")
button.disabled = not why.ok
button.tooltip_text = "" if why.ok else why.error.message

It sells ids and grants nothing

economy.bought.connect(func(key, id, price, balance):
    loadouts.grant(key, id))          # or an arsenal, or a boolean

A shop item holds no scene, no mesh and no item resource, so a purchase validates on a server that does not have the content.

Why the defaults are what they are

A buy economy looks arbitrary and is not. Each default is a number the round-based competitive shooters converged on over twenty years:

  • 800 to start, 16000 as a ceiling. The first round is a pistol round, the second is a decision, the fifth is a full buy. Remove the ceiling and a team that saves twice buys everything for ever.
  • A loss bonus of 1400 rising by 500 to 3400. Without it the losing team is poorer because they are losing, which is a feedback loop with one outcome.
  • A sniper-rifle kill pays 100 and a knife kill pays 1500. The cheapest way to make money is the riskiest thing you can do.
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