manabrew_engine/replacement/
replace_begin_phase.rs

1//! Replacement logic for `Event$ BeginPhase`.
2//!
3//! Mirrors Java `ReplaceBeginPhase.java` in `forge/game/replacement/`.
4
5use crate::card::Card;
6use crate::game::GameState;
7use crate::ids::CardId;
8
9use super::replacement_effect::ReplacementEffect;
10use super::replacement_handler::ReplacementEvent;
11use super::replacement_result::ReplacementResult;
12use super::replacement_type::ReplacementType;
13use crate::card_trait_base::CardTrait;
14
15/// Mirrors Java `ReplaceBeginPhase.canReplace()`.
16pub fn can_replace(
17    effect: &ReplacementEffect,
18    event: &ReplacementEvent,
19    _game: &GameState,
20    source_card: &Card,
21) -> bool {
22    if effect.event != ReplacementType::BeginPhase {
23        return false;
24    }
25    let (player, phase) = match event {
26        ReplacementEvent::BeginPhase { player, phase } => (*player, *phase),
27        _ => return false,
28    };
29    if let Some(valid) = effect.ir.valid_player_selector.as_ref() {
30        if !effect.matches_compiled_valid_player(valid, player, source_card) {
31            return false;
32        }
33    }
34    if !effect.matches_phase(phase) {
35        return false;
36    }
37    true
38}
39
40/// Mirrors Java `ReplacementHandler.executeReplacement()` for BeginPhase.
41pub fn execute(
42    effect: &ReplacementEffect,
43    _event: &mut ReplacementEvent,
44    _game: &GameState,
45    _source_card_id: CardId,
46) -> ReplacementResult {
47    if effect.prevents() || effect.has_skip() {
48        return ReplacementResult::Skipped;
49    }
50    ReplacementResult::Replaced
51}
manabrew_engine/replacement/replace_begin_phase.rs

manabrew_engine/replacement/
replace_begin_phase.rs
