Trait ContextAccess

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pub trait ContextAccess {
Show 16 methods    // Required methods
    fn global(&self, idx: u32) -> &Value;
    fn set_global(&mut self, idx: u32, value: Value);
    fn visit_count(&self, id: DefinitionId) -> u32;
    fn increment_visit(&mut self, id: DefinitionId);
    fn set_visit_count(&mut self, id: DefinitionId, count: u32);
    fn turn_count(&self, id: DefinitionId) -> Option<u32>;
    fn set_turn_count(&mut self, id: DefinitionId, turn: u32);
    fn turn_index(&self) -> u32;
    fn increment_turn_index(&mut self);
    fn set_turn_index(&mut self, index: u32);
    fn rng_seed(&self) -> i32;
    fn set_rng_seed(&mut self, seed: i32);
    fn previous_random(&self) -> i32;
    fn set_previous_random(&mut self, val: i32);
    fn next_random<R: StoryRng>(&self, seed: i32) -> i32;
    fn random_sequence<R: StoryRng>(&self, seed: i32, count: usize) -> Vec<i32>;
}

Expand description

Trait for accessing and mutating story execution state.

This is the interface between the VM and the mutable story state. World implements it directly, as does the ContextView routing view. ObservedContext wraps an implementor and fires WriteObserver callbacks on mutations. Consumers can also implement this trait themselves to plug in custom observers (e.g. bevy events) or alternate storage backends.

This does NOT include Program, resolver, or any immutable data — it’s purely the mutable state surface.

Required Methods§

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fn set_visit_count(&mut self, id: DefinitionId, count: u32)

Set a visit count directly, rather than incrementing it. Used by crate::load_state to reconcile a durable save, whose entries carry absolute counts rather than deltas.

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