manabrew_engine/trigger/
trigger_attacks.rs

1use serde::{Deserialize, Serialize};
2
3use crate::parsing::{keys, Params};
4use crate::{event::RunParams, game::GameState, spellability::SpellAbility, trigger::TriggerType};
5
6use super::trigger::TriggerBehavior;
7
8#[derive(Debug, Clone, Serialize, Deserialize)]
9pub struct TriggerAttacks {
10    pub valid_card: Option<crate::parsing::CompiledSelector>,
11    pub alone: bool,
12}
13
14impl TriggerAttacks {
15    pub fn parse(params: &Params) -> Box<dyn TriggerBehavior> {
16        Box::new(Self {
17            valid_card: params.selector_cloned(keys::VALID_CARD),
18            alone: params.is_true(keys::ALONE),
19        })
20    }
21}
22
23#[typetag::serde]
24impl TriggerBehavior for TriggerAttacks {
25    fn trigger_type(&self) -> TriggerType {
26        TriggerType::Attacks
27    }
28
29    fn perform_test(
30        &self,
31        trigger: &super::trigger::Trigger,
32        params: &RunParams,
33        game: &GameState,
34    ) -> bool {
35        if self.alone && params.num_attackers.unwrap_or(0) != 1 {
36            return false;
37        }
38        trigger.matches_optional_valid_card_filter(&self.valid_card, params.attacker, game)
39    }
40
41    fn set_triggering_objects(
42        &self,
43        _trigger: &super::trigger::Trigger,
44        sa: &mut SpellAbility,
45        params: &RunParams,
46        _game: &GameState,
47    ) {
48        // Java: sa.setTriggeringObject(AbilityKey.Defender, runParams.get(AbilityKey.Attacked));
49        if let Some(p) = params.attacked_player {
50            sa.set_triggering_object(crate::ability::AbilityKey::Defender, p);
51        } else if let Some(c) = params.attacked_card {
52            sa.set_triggering_object(crate::ability::AbilityKey::Defender, c);
53        }
54        // Java: sa.setTriggeringObjectsFrom(runParams, AbilityKey.Attacker, AbilityKey.Defenders, AbilityKey.DefendingPlayer);
55        if let Some(attacker) = params.attacker {
56            sa.set_triggering_object(crate::ability::AbilityKey::Attacker, attacker);
57        }
58        // Defenders combines both player and card defender IDs
59        match (
60            params.defenders_player_ids.as_ref(),
61            params.defenders_card_ids.as_ref(),
62        ) {
63            (Some(players), None) => {
64                sa.set_triggering_object(crate::ability::AbilityKey::Defenders, players.clone());
65            }
66            (None, Some(cards)) => {
67                sa.set_triggering_object(crate::ability::AbilityKey::Defenders, cards.clone());
68            }
69            (Some(players), Some(cards)) => {
70                let mut parts: Vec<String> = players.iter().map(|p| p.0.to_string()).collect();
71                parts.extend(cards.iter().map(|c| c.0.to_string()));
72                sa.set_triggering_object(crate::ability::AbilityKey::Defenders, parts.join(","));
73            }
74            (None, None) => {}
75        }
76        if let Some(p) = params.defending_player {
77            sa.set_triggering_object(crate::ability::AbilityKey::DefendingPlayer, p);
78        }
79    }
80
81    fn get_important_stack_objects(
82        &self,
83        _trigger: &super::trigger::Trigger,
84        sa: &SpellAbility,
85    ) -> String {
86        format!(
87            "Attacker: {}",
88            sa.get_triggering_object(crate::ability::AbilityKey::Attacker)
89                .unwrap_or("")
90        )
91    }
92}
manabrew_engine/trigger/trigger_attacks.rs

manabrew_engine/trigger/
trigger_attacks.rs
