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GateConsumer

Enum GateConsumer 

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pub enum GateConsumer {
    Objective,
    Effect,
    Trigger,
    Trap,
    DialogueOption,
    CastPlacement,
    ShopOffer,
}
Expand description

The object classes that carry a gate. A closed set.

ALL is the enumeration; GateConsumer::label and every consumer that matches on one is exhaustive, so an eighth class is a compile error at every site where the answer would have to change.

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Objective

A stage-5 quests[].objectives[] — the gate decides whether the objective activates.

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Effect

Any QuestEffect, at any of the five effect roots, top-level or nested — the gate decides whether the effect’s commands run.

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Trigger

A stage-5 triggers[] — the gate decides whether the trigger can fire.

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Trap

A stage-5 traps[] — the gate decides whether the trap is armed.

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DialogueOption

A stage-6 dialogues[].nodes[].options[] — the gate decides whether the option is shown, and whether a direct /trigger on it does anything.

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CastPlacement

A stage-5 quests[].cast[] placement — the gate decides which branch’s scene describes the world.

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ShopOffer

A stage-5 shops[].offers[] (DSL v0.10, spec-0032) — the gate decides whether the button is shown, and whether a direct /trigger on it does anything. This is where a price lives: a shop declares no comparison surface of its own, because “may this happen yet?” already has an owner.

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impl GateConsumer

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pub const ALL: [GateConsumer; 7]

Every consumer class, in enumeration order (= visit order in for_each_gate).

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pub const COUNT: usize

How many consumer classes there are.

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pub fn label(self) -> &'static str

A short, stable label for a binding ledger or a diagnostic.

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pub fn evaluates_per_player(self) -> Option<bool>

Whether emission evaluates this consumer’s gate against an acting player (@s) rather than against the party holder (#party) — or None when the class alone cannot say.

This is a statement about the emitter, not a preference: a dialogue option’s availability is computed per player into dw.dmask and its /trigger handler runs as @s; a cast placement selects a scene into a per-player dw.cast. Three of the others are party predicates by construction — an objective’s activation guard is read on the tick (“whoever finishes the last objective completes the quest for everyone”), and a trigger’s and a trap’s arming gates flip one global sentinel.

Effect answers None, and that is the whole point of the return type. An effect’s gate is evaluated wherever its bundle is run, and which that is belongs to the root, not to the effect: four roots have an acting player and three do not (EffectRootKind::runs_with_acting_player), and on top of that the sequence / on_arrive seams inside a bundle drop the actor mid-walk. An earlier version of this method answered true for Effect, which is right for on_objective_complete and wrong for a trigger’s effects, a trap’s payload and a shortcut’s on_unlock — three of the seven roots, silently. Option makes that wrong answer unrepresentable: a caller must handle the deferral.

It is what makes a player-scoped datum’s readability decidable (DW0503) from the closed consumer set rather than from a list somebody maintains — an eighth consumer class must answer this to compile.

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pub fn stage(self) -> &'static str

The stage document this consumer lives in.

Trait Implementations§

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impl Clone for GateConsumer

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fn clone(&self) -> GateConsumer

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for GateConsumer

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impl Debug for GateConsumer

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Eq for GateConsumer

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impl Hash for GateConsumer

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for GateConsumer

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fn cmp(&self, other: &GateConsumer) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 (const: unstable) · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 (const: unstable) · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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fn clamp_to<R>(self, range: R) -> Self
where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)
Restrict a value to a certain range. Read more
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impl PartialEq for GateConsumer

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fn eq(&self, other: &GateConsumer) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl PartialOrd for GateConsumer

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fn partial_cmp(&self, other: &GateConsumer) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 (const: unstable) · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 (const: unstable) · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 (const: unstable) · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 (const: unstable) · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl StructuralPartialEq for GateConsumer

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, !>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.