Struct ReplacementHandler 

pub struct ReplacementHandler { /* private fields */ }

Struct-based replacement handler with loop prevention and optional agent access.

Mirrors Java ReplacementHandler class. The has_run set prevents infinite loops when effects re-trigger themselves.

Usage:

• ReplacementHandler::new().run(game, Some(agents), event) — with agent choice
• apply_replacements(game, event) — free function wrapper (no agent, auto-selects first)

Implementations

impl ReplacementHandler

pub fn new() -> Self

pub fn run( &mut self, game: &mut GameState, agents: Option<&mut [Box<dyn PlayerAgent>]>, runtime: Option<&mut ReplacementRuntime<'_>>, event: &mut ReplacementEvent, ) -> ReplacementResult

Apply all applicable replacement effects to a game event.

Processes effects in CR 616 layer order: CantHappen → Control → Copy → Transform → Other.

When agents is Some and multiple effects match in the same layer, the affected player’s agent is asked to choose via choose_single_replacement_effect().

Mirrors Java ReplacementHandler.run(ReplacementType, Map<AbilityKey,Object>).

Trait Implementations

impl Default for ReplacementHandler

fn default() -> Self

Returns the “default value” for a type.