Many more tests and fixes

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/FollowMeEffect.cs

@@ -0,0 +1,42 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Pokemon;
+
+[Script(ScriptCategory.Side, "follow_me")]
+public class FollowMeEffect : Script, IScriptChangeIncomingTargets, IScriptOnEndTurn, IScriptOnFaint, IScriptOnSwitchOut
+{
+    private readonly IPokemon _user;
+
+    public FollowMeEffect(IPokemon user)
+    {
+        _user = user;
+    }
+
+    /// <inheritdoc />
+    public void ChangeIncomingTargets(IMoveChoice moveChoice, ref IReadOnlyList<IPokemon?> targets)
+    {
+        if (targets.Count != 1)
+            return;
+        if (moveChoice.ChosenMove.MoveData.HasFlag(MoveFlags.NoRedirection))
+            return;
+
+        if (moveChoice.User.BattleData?.SideIndex == _user.BattleData?.SideIndex)
+            return;
+        targets = [_user];
+    }
+
+    public void OnEndTurn(IScriptSource owner, IBattle battle)
+    {
+        RemoveSelf();
+    }
+
+    public void OnFaint(IPokemon pokemon, DamageSource source)
+    {
+        if (pokemon == _user)
+            RemoveSelf();
+    }
+
+    public void OnSwitchOut(IPokemon oldPokemon, byte position)
+    {
+        if (oldPokemon == _user)
+            RemoveSelf();
+    }
+}

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/LuckyChantEffect.cs

@@ -0,0 +1,21 @@
+namespace PkmnLib.Plugin.Gen7.Scripts.Side;
+
+[Script(ScriptCategory.Side, "lucky_chant")]
+public class LuckyChantEffect : Script, IScriptBlockIncomingCriticalHit, IScriptOnEndTurn
+{
+    private int _turnsLeft = 5;
+
+    /// <inheritdoc />
+    public void OnEndTurn(IScriptSource owner, IBattle battle)
+    {
+        _turnsLeft--;
+        if (_turnsLeft > 0)
+            return;
+        RemoveSelf();
+    }
+
+    public void BlockIncomingCriticalHit(IExecutingMove move, IPokemon target, byte hit, ref bool block)
+    {
+        block = true;
+    }
+}

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/MistEffect.cs

@@ -1,13 +1,24 @@
 namespace PkmnLib.Plugin.Gen7.Scripts.Side;
 
 [Script(ScriptCategory.Side, "mist")]
-public class MistEffect : Script, IScriptPreventStatBoostChange
+public class MistEffect : Script, IScriptPreventStatBoostChange, IScriptOnEndTurn
 {
+    private int _turnsRemaining = 5;
+
     /// <inheritdoc />
     public void PreventStatBoostChange(IPokemon target, Statistic stat, sbyte amount, bool selfInflicted,
         ref bool prevent)
     {
+        if (selfInflicted)
+            return;
         if (amount < 0)
             prevent = true;
     }
+
+    public void OnEndTurn(IScriptSource owner, IBattle battle)
+    {
+        _turnsRemaining--;
+        if (_turnsRemaining == 0)
+            RemoveSelf();
+    }
 }

Plugins/PkmnLib.Plugin.Gen7/Scripts/Side/RainbowEffect.cs

@@ -3,7 +3,7 @@ namespace PkmnLib.Plugin.Gen7.Scripts.Side;
 [Script(ScriptCategory.Side, "rainbow_effect")]
 public class RainbowEffect : Script, IScriptChangeEffectChance, IScriptOnEndTurn
 {
-    private int _turns = 5;
+    private int _turns = 4;
 
     /// <inheritdoc />
     public void ChangeEffectChance(IExecutingMove move, IPokemon target, byte hit, ref float chance)