manabrew_engine/trigger/
trigger_attacker_blocked.rs

1use serde::{Deserialize, Serialize};
2
3use crate::{
4    event::RunParams,
5    game::GameState,
6    parsing::{keys, Params},
7    spellability::SpellAbility,
8    trigger::TriggerType,
9};
10
11use super::trigger::TriggerBehavior;
12
13#[derive(Debug, Clone, Serialize, Deserialize)]
14pub struct TriggerAttackerBlocked {
15    pub valid_card: Option<crate::parsing::CompiledSelector>,
16}
17
18impl TriggerAttackerBlocked {
19    pub fn parse(params: &Params) -> Box<dyn TriggerBehavior> {
20        Box::new(Self {
21            valid_card: params.selector_cloned(keys::VALID_CARD),
22        })
23    }
24}
25
26#[typetag::serde]
27impl TriggerBehavior for TriggerAttackerBlocked {
28    fn trigger_type(&self) -> TriggerType {
29        TriggerType::AttackerBlocked
30    }
31
32    fn perform_test(
33        &self,
34        trigger: &super::trigger::Trigger,
35        params: &RunParams,
36        game: &GameState,
37    ) -> bool {
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        if let Some(attacker) = params.attacker {
49            sa.set_triggering_object(crate::ability::AbilityKey::Attacker, attacker.0.to_string());
50        }
51        if let Some(blockers) = params.blocker_ids.as_ref() {
52            let csv = blockers
53                .iter()
54                .map(|c| c.0.to_string())
55                .collect::<Vec<_>>()
56                .join(",");
57            sa.set_triggering_object(crate::ability::AbilityKey::Blockers, &csv);
58        }
59        if let Some(p) = params.defending_player {
60            sa.set_triggering_object(crate::ability::AbilityKey::DefendingPlayer, p.0.to_string());
61        }
62        if let Some(c) = params.attacked_card {
63            sa.set_triggering_object(crate::ability::AbilityKey::Defender, c.0.to_string());
64        } else if let Some(p) = params.attacked_player {
65            sa.set_triggering_object(crate::ability::AbilityKey::Defender, p.0.to_string());
66        }
67    }
68
69    fn get_important_stack_objects(
70        &self,
71        _trigger: &super::trigger::Trigger,
72        sa: &SpellAbility,
73    ) -> String {
74        let attacker = sa
75            .get_triggering_object(crate::ability::AbilityKey::Attacker)
76            .unwrap_or("");
77        let num_blockers = sa
78            .get_triggering_object(crate::ability::AbilityKey::Blockers)
79            .map(|s| {
80                if s.is_empty() {
81                    0
82                } else {
83                    s.split(',').count()
84                }
85            })
86            .unwrap_or(0);
87        format!("Attacker: {attacker}, Number Blockers: {num_blockers}")
88    }
89}
manabrew_engine/trigger/trigger_attacker_blocked.rs

manabrew_engine/trigger/
trigger_attacker_blocked.rs
