Farmer's Delight's calls against existing hooks

Prefix API = crates/horizon-mod-vocab/src/; Game = crates/horizon-client/src/game/.

• CampfireBlock#isSmokeSource, @Inject at HEAD, cancellable: answers for its own blocks.

  Hook and contract

  BlockPart::smoke_source (API hooks/base.rs:3327): replace, scoped to the block under the campfire, asked on an authoritative server as the campfire is placed or that block changes.

  Status

  Works

  Evidence

  Game modding/native_smoke_source_tests.rs:44: a Part's yes makes a campfire over stone a signal fire, and a Part's no over a hay bale replaces vanilla's yes, through the shape update when the block under it changes. The map's location note (only the hook's rustdoc names the method) is settled: horizon-world level/survive.rs:504 is CampfireBlock.isSmokeSource and asks the hook.

• LivingEntity#hurtServer, @ModifyVariable at HEAD: changes the damage amount.

  Hook and contract

  living_incoming_damage (API hooks/base.rs:906): cancel, with container.set_new_damage; fires past hurtServer's guards.

  Status

  Works

  Evidence

  Game modding/native_damage_tests.rs:119: a listener sets 4 on a 10-point hit and the pig keeps 6 health, so the changed amount is the one dealt. The map's "contract mismatch" read the hook's name (cancel), not its mutable container. Farmer's Delight changes the amount before the guards, and the hook runs after them. In vanilla 26.3's hurtServer, the guards (isInvulnerableTo, isDeadOrDying, fire damage under Fire Resistance) return before the method first reads the amount, so the dealt damage is the same.

• LivingEntity#knockback (both overloads), @ModifyVariable at HEAD, ordinal 0: changes the strength.

  Hook and contract

  living_knockback (API hooks/base.rs:2069): cancel, with mutable strength, x and z on the raw strength before knockback resistance.

  Status

  Works

  Evidence

  Game modding/native_knockback_tests.rs:91: a listener doubles the strength (:42) and the push the game applies carries 0.8 for 0.4 (:142). The map's "contract mismatch" read the hook's name, as above.

• MinecraftServer#onGameRuleChanged, @Inject at HEAD: is told a rule changed.

  Hook and contract

  game_rule_changed (API hooks/game_rule_changed.rs:15): listen, with the rule, the new value and the actor.

  Status

  Works

  Evidence

  Game modding/native_level_world.rs:523: setting keep_inventory tells a listener the rule, that no player caused it, and the whole rule set with the new value. The map found no candidate, because it tagged the method to two Hub setters rather than to the hook.

Cake eligibility

can_eat also supplies cake and candle cake's Player.canEat(false) answer. The event receives the currently held stack, or None for an empty hand, not a synthetic cake item. Answer Some(false) to refuse a bite even when hungry, or Some(true) to allow a full player to eat. Leaving the answer unset keeps vanilla hunger and creative-mode behavior.

Gaps

The outcome tests in this table do not establish exact function-entry fidelity. In particular, listening once to living_knockback is not equivalent to injecting both delegated overloads; #2753 tracks the entry pair and #2767 tracks its cross-target API admission. For hearing refused damage attempts without changing the amount, use the existing invulnerability observation, with its explicit vanilla exclusions (#2752). living_incoming_damage already allows amount changes before the cooldown comparison; no new amount-bearing entry event is needed for that use case.