Monsters play emotions from hand

Assets/Battle/BattleController.cs

@@ -35,6 +35,7 @@ public class BattleController : MonoBehaviour, IBattleEffectApplier, IBattleEffe
     private EnergyPool monsterEnergy;
     private InsightLevel insightLevel;
     private HandPlayability<HeroCard> heroHandPlayability;
+    private HandPlayability<MonsterCard> monsterHandPlayability;
 
     private delegate void BattleStateChangedAction();
     private event BattleStateChangedAction OnBattleStateChanged;
@@ -129,6 +130,9 @@ public class BattleController : MonoBehaviour, IBattleEffectApplier, IBattleEffe
         this.heroHandPlayability = new HandPlayability<HeroCard>(
             this.state, this.heroEnergy, TeamChoice.Heroes, this.heroDeck);
         this.OnBattleStateChanged += this.heroHandPlayability.NotifyBattleStateChanged;
+        this.monsterHandPlayability = new HandPlayability<MonsterCard>(
+            this.state, this.monsterEnergy, TeamChoice.Monsters, this.monsterDeck);
+        this.OnBattleStateChanged += this.monsterHandPlayability.NotifyBattleStateChanged;
 
         this.battlePlayerControls.Init(
             this.heroDeck, this.monsterDeck, this.playArea, this.insightLevel,
@@ -220,10 +224,6 @@ public class BattleController : MonoBehaviour, IBattleEffectApplier, IBattleEffe
         yield return new WaitForSeconds(0.5f);
         
         // Start of monster turn
-        // TODO: Play emotions from hand
-        if (this.monsterEnergy.MaxEnergy < 9) {
-            this.monsterEnergy.DropOneEmotion();
-        }
         foreach (BattleMonster monster in this.monsters) {
             monster.ResetBlock();
         }
@@ -288,7 +288,7 @@ public class BattleController : MonoBehaviour, IBattleEffectApplier, IBattleEffe
     }
 
     public bool CanUseMonsterCard(MonsterCard card) {
-        return !this.state.HeroTurn && card.Owner.CanUseCard(card) && this.monsterEnergy.CanPayForCard(card);
+        return this.monsterHandPlayability.IsPlayable(card);
     }
 
     public BattleDeck<HeroCard> GetHeroDeck() {

Assets/Battle/CardsMonsters/EagernessMCard.cs

@@ -0,0 +1,17 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class EagernessMCard : MonsterCard
+{
+    public EagernessMCard(BattleParticipant owner)
+        : base(owner, MCardId.Eagerness, "Eagerness", 0, CardType.Emotion,
+            "1 Energy") {
+    }
+
+    public override IEnumerator Use(IBattleEffectApplier effectApplier,
+            MonsterViewpoint viewpoint) {
+        effectApplier.Apply(new DropEmotionEffect(1, this.owner.Team));
+        yield break;
+    }
+}

Assets/Battle/CardsMonsters/EagernessMCard.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 0b071ea4a665da14989cc845ee07936a
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Battle/CheatBattle.cs

@@ -42,24 +42,31 @@ public class CheatBattle: MonoBehaviour
             MonsterId.Bat,
         };
 
-        MCardId[] mCardIds = new MCardId[10] {
+        MCardId[] mCardIds = new MCardId[17] {
+            MCardId.Eagerness,
+            MCardId.Eagerness,
+            MCardId.Eagerness,
             MCardId.GraniteDefense,
             MCardId.GraniteDefense,
             MCardId.GolemCharge,
             MCardId.GolemFist,
 
+            MCardId.Eagerness,
+            MCardId.Eagerness,
             MCardId.VampireFangs,
             MCardId.VampireFangs,
             MCardId.Whirlwind,
 
+            MCardId.Eagerness,
+            MCardId.Eagerness,
             MCardId.VampireFangs,
             MCardId.VampireFangs,
             MCardId.Whirlwind,
         };
-        int[] mCardOwnerIndexes = new int[10] {
-            0, 0, 0, 0,
-            1, 1, 1,
-            2, 2, 2,
+        int[] mCardOwnerIndexes = new int[17] {
+            0, 0, 0, 0, 0, 0, 0,
+            1, 1, 1, 1, 1,
+            2, 2, 2, 2, 2,
         };
         BattleParameters parameters = new BattleParameters();
         parameters.SetHeroes(heroIds, hCardIds, hCardOwnerIndexes);

Assets/Battle/MonsterCardDatabase.cs

@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using UnityEngine;
 
 public enum MCardId {
+    Eagerness,
     QuickSwiftDeath,
     VampireFangs,
     Whirlwind,
@@ -21,6 +22,8 @@ public class MonsterCardDatabase : CardDatabase<MonsterCard>
         MCardId monsterCardId = (MCardId) id;
         switch (monsterCardId)
         {
+            case MCardId.Eagerness:
+                return new EagernessMCard(owner);
             case MCardId.QuickSwiftDeath:
                 return new QuickSwiftDeathMCard(owner);
             case MCardId.VampireFangs: