manabrew_engine/ability/effects/
reverse_turn_order_effect.rs

1use super::EffectContext;
2
3/// Resolve `SP$ ReverseTurnOrder` — reverse the player turn order.
4///
5/// Mirrors Java `ReverseTurnOrderEffect.java`.
6///
7/// # Card script examples
8/// ```text
9/// A:SP$ ReverseTurnOrder
10/// ```
11/// Struct form of this effect so it can participate in the
12/// `SpellAbilityEffect` trait hierarchy — mirrors Java's
13/// `ReverseTurnOrderEffect` class extending `SpellAbilityEffect`.
14#[manabrew_engine_macros::spell_effect(ReverseTurnOrderEffect)]
15fn resolve(ctx: &mut EffectContext, _sa: &crate::spellability::SpellAbility) {
16    ctx.game.player_order.reverse();
17}
18
19#[cfg(test)]
20mod tests {
21    use crate::ability::spell_ability_effect::SpellAbilityEffect;
22    use std::collections::HashMap;
23
24    use crate::ability::effects::EffectContext;
25    use crate::agent::PassAgent;
26    use crate::game::GameState;
27    use crate::ids::PlayerId;
28    use crate::mana::ManaPool;
29    use crate::spellability::SpellAbility;
30    use crate::trigger::handler::TriggerHandler;
31
32    #[test]
33    fn reverse_turn_order() {
34        let mut game = GameState::new(&["Alice", "Bob"], 20);
35        let p0 = PlayerId(0);
36        assert_eq!(game.player_order, vec![PlayerId(0), PlayerId(1)]);
37
38        let sa = SpellAbility::new_simple(None, p0, "SP$ ReverseTurnOrder");
39
40        let mut th = TriggerHandler::new();
41        let mut agents: Vec<Box<dyn crate::agent::PlayerAgent>> =
42            vec![Box::new(PassAgent), Box::new(PassAgent)];
43        let mut mp = vec![ManaPool::default(), ManaPool::default()];
44        let templates = HashMap::new();
45        let templates_variants = HashMap::new();
46        let token_fallback = HashMap::new();
47        let edition_dates: HashMap<String, String> = HashMap::new();
48        let mut rng_adapter = crate::game_rng::ThreadRngAdapter;
49        let mut ctx = EffectContext {
50            game: &mut game,
51            combat: None,
52            agents: &mut agents,
53            trigger_handler: &mut th,
54            token_templates: &templates,
55            token_art_variants: &templates_variants,
56            token_fallback: &token_fallback,
57            edition_dates: &edition_dates,
58            mana_pools: &mut mp,
59            parent_target_card: None,
60            rng: &mut rng_adapter,
61        };
62        super::ReverseTurnOrderEffect::resolve(&mut ctx, &sa);
63
64        assert_eq!(ctx.game.player_order, vec![PlayerId(1), PlayerId(0)]);
65    }
66}
manabrew_engine/ability/effects/reverse_turn_order_effect.rs

manabrew_engine/ability/effects/
reverse_turn_order_effect.rs
