manabrew_engine/trigger/
trigger_damage_dealt_once.rs

1use serde::{Deserialize, Serialize};
2
3use crate::card::card_damage_map::DamageTarget;
4use crate::event::RunParams;
5use crate::game::GameState;
6use crate::ids::CardId;
7use crate::parsing::{keys, Params};
8use crate::spellability::SpellAbility;
9use crate::trigger::TriggerType;
10
11use super::trigger::TriggerBehavior;
12
13#[derive(Debug, Clone, Serialize, Deserialize)]
14pub struct TriggerDamageDealtOnce {
15    pub valid_source: Option<crate::parsing::CompiledSelector>,
16    pub valid_target: Option<crate::parsing::CompiledSelector>,
17    pub combat_damage_only: bool,
18}
19
20impl TriggerDamageDealtOnce {
21    pub fn parse(params: &Params) -> Box<dyn TriggerBehavior> {
22        Box::new(Self {
23            valid_source: params.selector_cloned(keys::VALID_SOURCE),
24            valid_target: params.selector_cloned(keys::VALID_TARGET),
25            combat_damage_only: params.is_true(keys::COMBAT_DAMAGE),
26        })
27    }
28}
29
30#[typetag::serde]
31impl TriggerBehavior for TriggerDamageDealtOnce {
32    fn trigger_type(&self) -> TriggerType {
33        TriggerType::DamageDealtOnce
34    }
35
36    fn perform_test(
37        &self,
38        trigger: &super::trigger::Trigger,
39        params: &RunParams,
40        game: &GameState,
41    ) -> bool {
42        if self.combat_damage_only && params.is_combat_damage != Some(true) {
43            return false;
44        }
45        trigger.matches_optional_valid_card_filter(&self.valid_source, params.damage_source, game)
46            && trigger.matches_damage_target_filter(&self.valid_target, params, game, true)
47    }
48
49    fn set_triggering_objects(
50        &self,
51        _trigger: &super::trigger::Trigger,
52        sa: &mut SpellAbility,
53        params: &RunParams,
54        _game: &GameState,
55    ) {
56        if let Some(src) = params.damage_source {
57            sa.set_triggering_object(crate::ability::AbilityKey::Source, src.0.to_string());
58        }
59        if let Some(amount) = params.damage_amount {
60            sa.set_triggering_object(crate::ability::AbilityKey::DamageAmount, amount.to_string());
61        }
62        if let Some(card) = params.damage_target_card {
63            sa.set_triggering_object(crate::ability::AbilityKey::Targets, card.0.to_string());
64        } else if let Some(player) = params.damage_target_player {
65            sa.set_triggering_object(crate::ability::AbilityKey::Targets, player.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        // Java: "Damage Source: " + Source + ", Damaged: " + Targets + ", Amount: " + DamageAmount
75        format!(
76            "Damage Source: {}, Damaged: {}, Amount: {}",
77            sa.get_triggering_object(crate::ability::AbilityKey::Source)
78                .unwrap_or(""),
79            sa.get_triggering_object(crate::ability::AbilityKey::Targets)
80                .unwrap_or(""),
81            sa.get_triggering_object(crate::ability::AbilityKey::DamageAmount)
82                .unwrap_or("")
83        )
84    }
85}
86
87/// Returns the total damage amount from the damage map.
88/// Java: TriggerDamageDealtOnce.getDamageAmount
89///
90/// Note: The Java version filters entries by ValidTarget param; this standalone
91/// function passes all entries through. Filtering will be added when trigger
92/// param context is available.
93pub fn get_damage_amount(params: &RunParams) -> i32 {
94    match params.damage_map.as_ref() {
95        Some(map) => map.total_amount(),
96        None => 0,
97    }
98}
99
100/// Returns the damage target card IDs from the damage map.
101/// Java: TriggerDamageDealtOnce.getDamageTargets
102///
103/// Note: The Java version filters entries by ValidTarget param; this standalone
104/// function returns all target card IDs. Filtering will be added when trigger
105/// param context is available.
106pub fn get_damage_targets(params: &RunParams) -> Vec<CardId> {
107    match params.damage_map.as_ref() {
108        Some(map) => {
109            let mut targets = Vec::new();
110            for (_, target, _) in map.entries() {
111                if let DamageTarget::Card(cid) = target {
112                    if !targets.contains(&cid) {
113                        targets.push(cid);
114                    }
115                }
116            }
117            targets
118        }
119        None => Vec::new(),
120    }
121}
manabrew_engine/trigger/trigger_damage_dealt_once.rs

manabrew_engine/trigger/
trigger_damage_dealt_once.rs
