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manabrew_engine/ability/effects/
camouflage_effect.rs

1//! Camouflage — old-school combat concealment.
2//! Ported from Java's CamouflageEffect: the attacking player divides their
3//! creatures into face-down piles, then combat blockers are randomly assigned.
4//! In digital: we randomize the blocker assignments since the physical
5//! "face-down piles" mechanic can't be faithfully reproduced.
6
7use forge_foundation::ZoneType;
8
9use super::EffectContext;
10
11/// Struct form of this effect so it can participate in the
12/// `SpellAbilityEffect` trait hierarchy — mirrors Java's
13/// `CamouflageEffect` class extending `SpellAbilityEffect`.
14#[manabrew_engine_macros::spell_effect(CamouflageEffect)]
15fn resolve(ctx: &mut EffectContext, sa: &crate::spellability::SpellAbility) {
16    // Camouflage works by randomizing blocker assignments.
17    // In our engine, combat blocking is handled by the combat system.
18    // We mark the source creature so combat resolution knows to randomize.
19    if let Some(source) = sa.source {
20        if ctx.game.card(source).zone == ZoneType::Battlefield {
21            ctx.game
22                .card_mut(source)
23                .svars
24                .insert("Camouflage".to_string(), "True".to_string());
25        }
26    }
27}