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feat(currency): money moves through the bounded vocabulary (§6)

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give_item(gold) is +10,000c and does NOT mark gifts_given — that gate is a
global one-shot keyed by item id, so marking money would let an NPC pay you
exactly once per campaign. accept_item(<denom>) is offered only for the
denominations the purse can actually pay.

The eight moves do not grow. MoveValidator is untouched.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QYa9u7Kdxv5gX4AnwWexy8
This commit is contained in:
Phillip Tarrant
2026-07-12 18:32:14 -05:00
parent 8a71671df7
commit c106dbbd37
4 changed files with 82 additions and 9 deletions
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37
client/tests/unit/test_npc_content.gd
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@@ -39,6 +39,39 @@ func test_revealed_topic_drops_out():
func test_accept_item_offered_per_held_item():
var gs = GameState.new()
gs.add_item("coin", 2)
gs.add_item("worn_shortsword", 2)
var moves = NpcContent.available_moves(_fenn(), gs, CanonLog.new())
assert_true("accept_item(coin)" in moves)
assert_true("accept_item(worn_shortsword)" in moves)
func test_a_broke_party_is_asked_for_nothing():
var moves = NpcContent.available_moves(_fenn(), GameState.new(), CanonLog.new())
for denom in ["copper", "silver", "gold"]:
assert_false("accept_item(%s)" % denom in moves, "an empty purse cannot pay a %s" % denom)
func test_accept_item_denomination_gated_on_affordability():
var gs = GameState.new()
gs.grant("copper", 347)
var moves = NpcContent.available_moves(_fenn(), gs, CanonLog.new())
assert_true("accept_item(copper)" in moves)
assert_true("accept_item(silver)" in moves)
assert_false("accept_item(gold)" in moves, "347c cannot pay a gold coin")
func test_a_gold_coin_is_asked_for_once_affordable():
var gs = GameState.new()
gs.grant("gold", 1)
var moves = NpcContent.available_moves(_fenn(), gs, CanonLog.new())
assert_true("accept_item(gold)" in moves)
func test_currency_gift_is_offered_repeatedly():
var npc := _fenn()
npc["capabilities"]["giveable_items"] = ["copper", "amulet"]
var gs = GameState.new()
gs.mark_gift_given("copper")
gs.mark_gift_given("amulet")
var moves = NpcContent.available_moves(npc, gs, CanonLog.new())
assert_true("give_item(copper)" in moves, "money is not a one-shot gift")
assert_false("give_item(amulet)" in moves, "a real item still is")