manabrew_engine/ability/effects/
game_win_effect.rs

1use super::{resolve_defined_player, EffectContext};
2use crate::replacement::replacement_handler::{apply_replacements, ReplacementEvent};
3use crate::replacement::ReplacementResult;
4
5/// Resolve `SP$ GameWin` — a player wins the game.
6///
7/// Mirrors Java `GameWinEffect.java`.
8///
9/// # Card script examples
10/// ```text
11/// A:SP$ GameWin | Defined$ You
12/// ```
13/// Struct form of this effect so it can participate in the
14/// `SpellAbilityEffect` trait hierarchy — mirrors Java's
15/// `GameWinEffect` class extending `SpellAbilityEffect`.
16#[manabrew_engine_macros::spell_effect(GameWinEffect)]
17fn resolve(ctx: &mut EffectContext, sa: &crate::spellability::SpellAbility) {
18    let controller = sa.activating_player;
19
20    let defined = sa.defined().unwrap_or("You");
21
22    let winner = resolve_defined_player(defined, controller, ctx.game).unwrap_or(controller);
23
24    if !ctx.game.player(winner).is_alive() {
25        return;
26    }
27
28    // Run GameWin replacement effects.
29    let mut event = ReplacementEvent::GameWin { player: winner };
30    let result = apply_replacements(ctx.game, &mut event);
31    if result == ReplacementResult::Replaced {
32        return;
33    }
34
35    // Set the winner
36    ctx.game.player_mark_won(winner);
37
38    // All other players lose
39    let all_players: Vec<_> = ctx.game.player_order.clone();
40    for &pid in &all_players {
41        if pid != winner {
42            ctx.game
43                .player_mark_lost(pid, crate::replacement::GameLossReason::OpponentWon);
44        }
45    }
46
47    ctx.game.game_over = true;
48    ctx.game.winner = Some(winner);
49}
50
51#[cfg(test)]
52mod tests {
53    use crate::ability::spell_ability_effect::SpellAbilityEffect;
54    use std::collections::HashMap;
55
56    use crate::ability::effects::EffectContext;
57    use crate::agent::PassAgent;
58    use crate::game::GameState;
59    use crate::ids::PlayerId;
60    use crate::mana::ManaPool;
61    use crate::spellability::SpellAbility;
62    use crate::trigger::handler::TriggerHandler;
63
64    #[test]
65    fn game_win_sets_winner() {
66        let mut game = GameState::new(&["Alice", "Bob"], 20);
67        let p0 = PlayerId(0);
68
69        let sa = SpellAbility::new_simple(None, p0, "SP$ GameWin | Defined$ You");
70
71        let mut th = TriggerHandler::new();
72        let mut agents: Vec<Box<dyn crate::agent::PlayerAgent>> =
73            vec![Box::new(PassAgent), Box::new(PassAgent)];
74        let mut mp = vec![ManaPool::default(), ManaPool::default()];
75        let templates = HashMap::new();
76        let templates_variants = HashMap::new();
77        let token_fallback = HashMap::new();
78        let edition_dates: HashMap<String, String> = HashMap::new();
79        let mut rng_adapter = crate::game_rng::ThreadRngAdapter;
80        let mut ctx = EffectContext {
81            game: &mut game,
82            combat: None,
83            agents: &mut agents,
84            trigger_handler: &mut th,
85            token_templates: &templates,
86            token_art_variants: &templates_variants,
87            token_fallback: &token_fallback,
88            edition_dates: &edition_dates,
89            mana_pools: &mut mp,
90            parent_target_card: None,
91            rng: &mut rng_adapter,
92        };
93        super::GameWinEffect::resolve(&mut ctx, &sa);
94
95        assert!(ctx.game.game_over);
96        assert_eq!(ctx.game.winner, Some(p0));
97        assert!(ctx.game.player(p0).has_won);
98        assert!(ctx.game.player(PlayerId(1)).has_lost);
99    }
100}
manabrew_engine/ability/effects/game_win_effect.rs

manabrew_engine/ability/effects/
game_win_effect.rs
