manabrew_engine/ability/effects/
draft_effect.rs

1//! Draft — draft a card from a spellbook (Conspiracy/Arena).
2//! Ported from Java's DraftEffect: picks cards from a spellbook list,
3//! presents 3 random options, player chooses one, it goes to hand.
4
5use super::EffectContext;
6use crate::parsing::keys;
7
8/// Struct form of this effect so it can participate in the
9/// `SpellAbilityEffect` trait hierarchy — mirrors Java's
10/// `DraftEffect` class extending `SpellAbilityEffect`.
11#[manabrew_engine_macros::spell_effect(DraftEffect)]
12fn resolve(ctx: &mut EffectContext, sa: &crate::spellability::SpellAbility) {
13    let source = match sa.source {
14        Some(s) => s,
15        None => return,
16    };
17    let controller = sa.activating_player;
18
19    // Get spellbook names
20    let spellbook = match sa.ir.spellbook_text.as_deref() {
21        Some(sb) => sb
22            .split(',')
23            .map(|s| s.trim().replace(';', ","))
24            .collect::<Vec<_>>(),
25        None => return,
26    };
27
28    let num_to_draft = super::resolve_numeric_svar(ctx.game, sa, "DraftNum", 1).max(1) as usize;
29
30    for _ in 0..num_to_draft {
31        if spellbook.is_empty() {
32            break;
33        }
34        // In full implementation: present 3 random options from spellbook to player
35        // For now, auto-select first option (agent would choose)
36        let chosen_name =
37            &spellbook[ctx.rng.next_int(spellbook.len() as i32) as usize % spellbook.len()];
38
39        // Remember the drafted card name on source
40        if sa.param_is_true(keys::REMEMBER_DRAFTED) {
41            ctx.game
42                .card_mut(source)
43                .set_s_var("DraftedCard", chosen_name.clone());
44        }
45    }
46    let _ = controller; // used in full impl for zone changes
47}
manabrew_engine/ability/effects/draft_effect.rs

manabrew_engine/ability/effects/
draft_effect.rs
