feat: module 02 action queue

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

course/02-action-queue/expansion/solution/rust/src/content/mod.rs

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+//! Content: card definitions. Only this directory may name specific cards.
+//!
+//! Each effect is a small Rust function that returns engine actions. Module 5
+//! replaces these functions with card data the engine interprets.
+
+use crate::engine::{Action, CardDef, CardLibrary, TriggerOn};
+
+/// Every card this game knows.
+pub fn library() -> CardLibrary {
+    CardLibrary::new(vec![
+        // Fictional test minion with no text.
+        CardDef::minion("Test Filler", 1, 1),
+        // "Whenever a friendly minion takes damage, gain 1 Armor."
+        CardDef::minion("Armorsmith", 1, 4).on(TriggerOn::FriendlyMinionDamaged, |c| {
+            vec![Action::GainArmor {
+                player: c.owner,
+                amount: 1,
+            }]
+        }),
+        // "Whenever this minion takes damage, draw a card."
+        CardDef::minion("Acolyte of Pain", 1, 4).on(TriggerOn::SelfDamaged, |c| {
+            vec![Action::Draw { player: c.owner }]
+        }),
+        // Fictional: "Whenever a minion takes damage, deal 1 damage to the enemy hero."
+        CardDef::minion("Test Echo", 1, 5).on(TriggerOn::AnyMinionDamaged, |c| {
+            vec![Action::Damage {
+                targets: vec![c.enemy_hero()],
+                amount: 1,
+            }]
+        }),
+        // Fictional: "Whenever a hero takes damage, gain +1 Attack."
+        CardDef::minion("Test Reactor", 1, 5).on(TriggerOn::HeroDamaged, |c| {
+            vec![Action::GainAttack {
+                id: c.minion(),
+                amount: 1,
+            }]
+        }),
+        // Expansion Drop: "Whenever a minion takes damage, gain +1 Attack."
+        CardDef::minion("Frothing Berserker", 2, 4).on(TriggerOn::AnyMinionDamaged, |c| {
+            vec![Action::GainAttack {
+                id: c.minion(),
+                amount: 1,
+            }]
+        }),
+        // "Deal 1 damage to ALL minions."
+        CardDef::spell("Whirlwind", |c| {
+            vec![Action::Damage {
+                targets: c.world.minions_in_play(),
+                amount: 1,
+            }]
+        }),
+    ])
+}

course/02-action-queue/expansion/solution/ts/src/content/index.ts

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+// Content: card definitions. Only this directory may name specific cards.
+//
+// Each effect is a small function that returns engine actions. Module 5
+// replaces these functions with card data the engine interprets.
+
+import { CardLibrary, minion, spell } from "../engine";
+
+/** Every card this game knows. */
+export function library(): CardLibrary {
+  return new CardLibrary([
+    // Fictional test minion with no text.
+    minion("Test Filler", 1, 1),
+    // "Whenever a friendly minion takes damage, gain 1 Armor."
+    minion("Armorsmith", 1, 4, [
+      { on: "friendlyMinionDamaged", effect: (c) => [{ type: "gainArmor", player: c.owner, amount: 1 }] },
+    ]),
+    // "Whenever this minion takes damage, draw a card."
+    minion("Acolyte of Pain", 1, 4, [{ on: "selfDamaged", effect: (c) => [{ type: "draw", player: c.owner }] }]),
+    // Fictional: "Whenever a minion takes damage, deal 1 damage to the enemy hero."
+    minion("Test Echo", 1, 5, [
+      { on: "anyMinionDamaged", effect: (c) => [{ type: "damage", targets: [c.enemyHero()], amount: 1 }] },
+    ]),
+    // Fictional: "Whenever a hero takes damage, gain +1 Attack."
+    minion("Test Reactor", 1, 5, [
+      { on: "heroDamaged", effect: (c) => [{ type: "gainAttack", id: c.minion(), amount: 1 }] },
+    ]),
+    // Expansion Drop: "Whenever a minion takes damage, gain +1 Attack."
+    minion("Frothing Berserker", 2, 4, [
+      { on: "anyMinionDamaged", effect: (c) => [{ type: "gainAttack", id: c.minion(), amount: 1 }] },
+    ]),
+    // "Deal 1 damage to ALL minions."
+    spell("Whirlwind", (c) => [{ type: "damage", targets: c.world.minionsInPlay(), amount: 1 }]),
+  ]);
+}