Adds Assurance effect

Scripts/Interfaces/AttackUseHistory.astypedef

@@ -0,0 +1,7 @@
+type AttackUseHistory {
+    const HistoryElement@ Previous { get const; };
+    HistoryElementKind Kind { get const; };
+    uint TurnNumber { get const; };
+    const HistoryElement@ opImplCast() const;
+    const ExecutingMove@ Move { get const; };
+}

Scripts/Interfaces/Battle.astypedef

@@ -6,6 +6,7 @@ type Battle {
     ChoiceQueue@ TurnQueue { get const; };
     narray<BattleSide>@ Sides { get const; };
     narray<BattleParty>@ Parties { get const; };
+    BattleHistory@ History { get const; };
     bool CanUse(BaseTurnChoice@ choice);
     ref@ AddVolatile(const constString &in name);
     void RemoveVolatile(const constString &in name) const;

Scripts/Interfaces/BattleHistory.astypedef

@@ -0,0 +1,5 @@
+type BattleHistory {
+    const HistoryElement@ TopElement { get const; };
+    const AttackUseHistory@ GetLastUsedAttack() const;
+    const DamageHistory@ GetLastDamageOnTarget(Pokemon@ target) const;
+}

Scripts/Interfaces/DamageHistory.astypedef

@@ -0,0 +1,9 @@
+type DamageHistory {
+    const HistoryElement@ Previous { get const; };
+    HistoryElementKind Kind { get const; };
+    uint TurnNumber { get const; };
+    const HistoryElement@ opImplCast() const;
+    Pokemon@ Target { get const; };
+    uint Amount { get const; };
+    DamageSource Source { get const; };
+}

Scripts/Interfaces/HistoryElement.astypedef

@@ -0,0 +1,4 @@
+type HistoryElement {
+    const DamageHistory@ opCast() const;
+    const AttackUseHistory@ opCast() const;
+}

Scripts/Interfaces/HistoryElementKind.astypedef

@@ -0,0 +1,4 @@
+enum HistoryElementKind {
+	AttackUse = 0,
+	Damage = 1,
+}