manabrew_engine/ability/effects/
change_zone_resolve_effect.rs

1//! ChangeZoneResolve effect — resolves accumulated zone changes.
2//!
3//! Mirrors Java's `ChangeZoneResolveEffect.java`.
4//! Triggers zone-change events for all cards that moved during
5//! a batched zone-change operation.
6
7use super::EffectContext;
8
9/// Resolve accumulated zone change triggers.
10/// In practice this is handled by the zone-change bookkeeping in the engine;
11/// this effect serves as the explicit resolution point matching Java's pattern.
12/// Struct form of this effect so it can participate in the
13/// `SpellAbilityEffect` trait hierarchy — mirrors Java's
14/// `ChangeZoneResolveEffect` class extending `SpellAbilityEffect`.
15#[manabrew_engine_macros::spell_effect(ChangeZoneResolveEffect)]
16fn resolve(ctx: &mut EffectContext, sa: &crate::spellability::SpellAbility) {
17    if let Some(table) = sa.change_zone_table.as_ref() {
18        table.trigger_changes_zone_all(ctx.trigger_handler, ctx.game, Some(sa));
19        return;
20    }
21    if let Some(table) = ctx.game.pending_change_zone_table.clone() {
22        table.trigger_changes_zone_all(ctx.trigger_handler, ctx.game, Some(sa));
23        ctx.game.clear_pending_change_zone_table();
24    }
25}
26
27#[cfg(test)]
28mod tests {
29    use crate::ability::spell_ability_effect::SpellAbilityEffect;
30    use std::collections::HashMap;
31
32    use forge_foundation::{CardTypeLine, ColorSet, ManaCost, ZoneType};
33
34    use crate::ability::effects::change_zone_effect;
35    use crate::ability::effects::EffectContext;
36    use crate::agent::{PassAgent, PlayerAgent};
37    use crate::card::Card;
38    use crate::game::GameState;
39    use crate::ids::{CardId, PlayerId};
40    use crate::mana::ManaPool;
41    use crate::spellability::SpellAbility;
42    use crate::trigger::handler::TriggerHandler;
43
44    #[test]
45    fn change_zone_resolve_clears_pending_table() {
46        let mut game = GameState::new(&["A", "B"], 20);
47        let p0 = PlayerId(0);
48        let c = Card::new(
49            CardId(0),
50            "X".to_string(),
51            p0,
52            CardTypeLine::parse("Creature"),
53            ManaCost::parse(""),
54            ColorSet::COLORLESS,
55            Some(1),
56            Some(1),
57            vec![],
58            vec![],
59        );
60        let cid = game.create_card(c);
61        game.ensure_pending_change_zone_table();
62        game.move_card(cid, ZoneType::Battlefield, p0);
63
64        let sa = SpellAbility::new_simple(Some(cid), p0, "DB$ ChangeZoneResolve");
65        let mut th = TriggerHandler::new();
66        let mut agents: Vec<Box<dyn PlayerAgent>> = vec![Box::new(PassAgent), Box::new(PassAgent)];
67        let mut pools = vec![ManaPool::default(), ManaPool::default()];
68        let templates = HashMap::new();
69        let templates_variants = HashMap::new();
70        let token_fallback = HashMap::new();
71        let edition_dates: HashMap<String, String> = HashMap::new();
72        let mut rng = crate::game_rng::ThreadRngAdapter;
73        let mut ctx = EffectContext {
74            game: &mut game,
75            combat: None,
76            agents: &mut agents,
77            trigger_handler: &mut th,
78            token_templates: &templates,
79            token_art_variants: &templates_variants,
80            token_fallback: &token_fallback,
81            edition_dates: &edition_dates,
82            mana_pools: &mut pools,
83            parent_target_card: None,
84            rng: &mut rng,
85        };
86
87        super::ChangeZoneResolveEffect::resolve(&mut ctx, &sa);
88        assert!(ctx.game.pending_change_zone_table.is_none());
89    }
90}
manabrew_engine/ability/effects/change_zone_resolve_effect.rs

manabrew_engine/ability/effects/
change_zone_resolve_effect.rs
