manabrew-engine 0.6.0

Magic: The Gathering rules engine — a Rust port of Forge
Documentation 
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use crate::card::{valid_filter, Card};
use crate::staticability::StaticMode;

pub fn ignore_land_walk(cards: &[Card], attacker: &Card, blocker: &Card, keyword: &str) -> bool {
    for source in cards.iter().filter(|c| c.zone.is_static_ability_source()) {
        for st_ab in source
            .static_abilities
            .iter()
            .filter(|sa| sa.check_mode(&StaticMode::IgnoreLandwalk) && sa.zones_check(source.zone))
        {
            if apply_ignore_landwalk(st_ab, attacker, blocker, keyword, source) {
                return true;
            }
        }
    }
    false
}

/// Alias for `apply_ignore_landwalk` — matches Java naming.
pub fn ignore_land_walk_ability(
    st_ab: &crate::staticability::StaticAbility,
    attacker: &Card,
    blocker: &Card,
    keyword: &str,
    source: &Card,
) -> bool {
    apply_ignore_landwalk(st_ab, attacker, blocker, keyword, source)
}

fn apply_ignore_landwalk(
    st_ab: &crate::staticability::StaticAbility,
    attacker: &Card,
    blocker: &Card,
    keyword: &str,
    source: &Card,
) -> bool {
    if !valid_filter::matches_valid_card_selector_opt(
        st_ab.ir.valid_attacker.as_ref(),
        attacker,
        source,
    ) {
        return false;
    }
    if !valid_filter::matches_valid_card_selector_opt(
        st_ab.ir.valid_blocker.as_ref(),
        blocker,
        source,
    ) {
        return false;
    }
    if let Some(valid_kw) = st_ab.ir.valid_keyword_text.as_deref() {
        if !valid_kw.eq_ignore_ascii_case(keyword) {
            return false;
        }
    }
    true
}