Adds Arena Trap ability

Scripts/Abilities/ArenaTrap.as

@@ -0,0 +1,15 @@
+namespace Gen7 {
+    class ArenaTrap : PkmnScript {
+        void PreventOpponentRunAway(FleeTurnChoice@ choice, bool &inout block){
+            if (block) return;
+            if (SpecialStates::IsRaised(choice.User)) return;
+            block = true;
+        }
+
+        void PreventOpponentSwitch(SwitchTurnChoice@ choice, bool &inout block){
+            if (block) return;
+            if (SpecialStates::IsRaised(choice.User)) return;
+            block = true;
+        }
+    }
+}

Scripts/Interfaces/Pokemon.astypedef

@@ -26,6 +26,7 @@ type Pokemon {
     void SetHeldItem(const Item@ item);
     string Nickname { get const; };
     bool HasType(uint8 type) const;
+    bool HasType(const constString &in type) const;
     void Damage(uint type, DamageSource source);
     void Heal(uint type);
     void OverrideActiveAbility(const string &in ability);
@@ -34,7 +35,7 @@ type Pokemon {
     uint GetBoostedStat(Statistic stat) const;
     uint GetBaseStat(Statistic stat) const;
     int8 GetStatBoost(Statistic stat) const;
-    bool HasVolatile(const constString &in name);
+    bool HasVolatile(const constString &in name) const;
     ref@ AddVolatile(const constString &in name);
     void RemoveVolatile(const constString &in name) const;
     void ClearStatus() const;

Scripts/Pokemon/RaisedUp.as

@@ -0,0 +1,5 @@
+namespace Gen7 {
+    // Empty class to tag the Pokemon as raised up.
+    [Pokemon effect=RaisedUp]
+    class RaisedUp : PkmnScript {}
+}

Scripts/Utilities/SpecialStates.as

@@ -0,0 +1,14 @@
+namespace Gen7 {
+    namespace SpecialStates {
+        bool IsRaised(const Pokemon@ pokemon){
+            if (pokemon.HasType("flying")){
+                return true;
+            }
+            if (pokemon.HasVolatile("RaisedUp")){
+                return true;
+            }
+
+            return false;
+        }
+    }
+}