manabrew-engine 0.4.1

Magic: The Gathering rules engine — a Rust port of Forge
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

use forge_foundation::ZoneType;

use crate::card::{valid_filter, Card};
use crate::staticability::StaticMode;

pub fn is_wither_damage(cards: &[Card], source_card: &Card) -> bool {
    let _perf_scope =
        crate::perf::ParamsLookupScopeGuard::enter(crate::perf::ParamsLookupScope::StaticAbility);
    for source in cards.iter().filter(|c| c.zone == ZoneType::Battlefield) {
        for st_ab in source
            .static_abilities
            .iter()
            .filter(|sa| sa.check_mode(&StaticMode::WitherDamage))
        {
            if matches_valid_card(st_ab.ir.valid_card.as_ref(), source_card, source) {
                return true;
            }
        }
    }
    false
}

fn matches_valid_card(
    valid: Option<&crate::parsing::CompiledSelector>,
    card: &Card,
    source: &Card,
) -> bool {
    valid_filter::matches_valid_card_selector_opt(valid, card, source)
}