manabrew-engine 0.2.3

Magic: The Gathering rules engine — a Rust port of Forge
Documentation 
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//! Move exiled cards to graveyard as a cost. Mirrors Java's `CostExiledMoveToGrave`.

use forge_foundation::ZoneType;

use crate::game::GameState;
use crate::ids::CardId;

/// Execute the exiled-move-to-grave payment for selected cards.
/// Mirrors Java's `CostExiledMoveToGrave.doPayment()`.
pub fn pay_as_decided_cards(game: &mut GameState, cards: &[CardId]) -> bool {
    for &cid in cards {
        let owner = game.card(cid).owner;
        game.move_card(cid, ZoneType::Graveyard, owner);
    }
    true
}

pub const HASH_LKI: &str = "MovedToGrave";
pub const HASH_CARDS: &str = "MovedToGraveCards";

pub fn payment_order(part: &super::CostPart) -> i32 {
    part.payment_order()
}

pub fn can_pay(
    game: &crate::game::GameState,
    _available_mana: &crate::mana::ManaPool,
    source: crate::ids::CardId,
    player: crate::ids::PlayerId,
    _ability: Option<&crate::spellability::SpellAbility>,
    part: &super::CostPart,
) -> bool {
    let super::CostPart::ExiledMoveToGrave {
        amount,
        type_filter,
    } = part
    else {
        return false;
    };
    let exiled = super::get_exiled_targets(game, type_filter).len() as i32;
    exiled >= amount.resolve(game, source, player)
}

pub fn pay_with_decision(
    game: &mut GameState,
    _player: crate::ids::PlayerId,
    _source: CardId,
    _part: &super::CostPart,
    decision: &crate::cost::payment_decision::PaymentDecision,
) -> bool {
    if let crate::cost::payment_decision::PaymentDecision::Cards(cards) = decision {
        return pay_as_decided_cards(game, cards);
    }
    false
}