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manabrew_engine/trigger/
trigger_discarded_all.rs

1use serde::{Deserialize, Serialize};
2
3use crate::event::RunParams;
4use crate::game::GameState;
5use crate::parsing::{keys, Params};
6use crate::spellability::SpellAbility;
7use crate::trigger::TriggerType;
8
9use super::trigger::TriggerBehavior;
10
11#[derive(Debug, Clone, Serialize, Deserialize)]
12pub struct TriggerDiscardedAll {
13    pub valid_card: Option<crate::parsing::CompiledSelector>,
14    pub valid_player: Option<crate::parsing::CompiledSelector>,
15}
16
17impl TriggerDiscardedAll {
18    pub fn parse(params: &Params) -> Box<dyn TriggerBehavior> {
19        Box::new(Self {
20            valid_card: params.selector_cloned(keys::VALID_CARD),
21            valid_player: params.selector_cloned(keys::VALID_PLAYER),
22        })
23    }
24}
25
26#[typetag::serde]
27impl TriggerBehavior for TriggerDiscardedAll {
28    fn trigger_type(&self) -> TriggerType {
29        TriggerType::DiscardedAll
30    }
31
32    fn perform_test(
33        &self,
34        trigger: &super::trigger::Trigger,
35        params: &RunParams,
36        game: &GameState,
37    ) -> bool {
38        let _host_card = trigger.base.card_trait_base.host_card_id();
39        let _host_controller = trigger.base.card_trait_base.host_controller(game);
40        trigger.matches_optional_valid_card_filter(&self.valid_card, params.card, game)
41            && trigger.matches_optional_valid_player_filter(&self.valid_player, params.player, game)
42    }
43
44    fn set_triggering_objects(
45        &self,
46        _trigger: &super::trigger::Trigger,
47        sa: &mut SpellAbility,
48        params: &RunParams,
49        _game: &GameState,
50    ) {
51        // Java: filters cards with ValidCard via CardLists.getValidCards, then sets Cards, Amount, Player, Cause
52        // TODO: ValidCard filtering skipped — free function has no access to trigger params (hasParam/getParam)
53        if let Some(cards) = params.cards.as_ref() {
54            let csv = cards
55                .iter()
56                .map(|c| c.0.to_string())
57                .collect::<Vec<_>>()
58                .join(",");
59            sa.set_triggering_object(crate::ability::AbilityKey::Cards, &csv);
60            sa.set_triggering_object(crate::ability::AbilityKey::Amount, cards.len().to_string());
61        }
62        if let Some(p) = params.player {
63            sa.set_triggering_object(crate::ability::AbilityKey::Player, p.0.to_string());
64        }
65        // TODO: AbilityKey.Cause is a SpellAbility in Java, cannot be stored as String easily
66    }
67
68    fn get_important_stack_objects(
69        &self,
70        _trigger: &super::trigger::Trigger,
71        sa: &SpellAbility,
72    ) -> String {
73        format!(
74            "Player: {}, Amount: {}",
75            sa.get_triggering_object(crate::ability::AbilityKey::Player)
76                .unwrap_or_default(),
77            sa.get_triggering_object(crate::ability::AbilityKey::Amount)
78                .unwrap_or_default()
79        )
80    }
81}