More moves implemented

Plugins/PkmnLib.Plugin.Gen7/Scripts/Moves/Curse.cs

@@ -0,0 +1,34 @@
+using System.Linq;
+using PkmnLib.Plugin.Gen7.Scripts.Pokemon;
+using PkmnLib.Static;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "curse")]
+public class Curse : Script
+{
+    /// <inheritdoc />
+    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
+    {
+        var battleData = move.User.BattleData;
+        if (battleData == null)
+            return;
+        var typeLibrary = battleData.Battle.Library.StaticLibrary.Types;
+        if (!typeLibrary.TryGetTypeIdentifier("ghost", out var ghostType))
+            return;
+        if (move.User.Types.Contains(ghostType))
+        {
+            move.User.Damage(move.User.CurrentHealth / 2, DamageSource.Misc);
+            if (move.User.CurrentHealth == 0)
+                return;
+            target.Volatile.Add(new GhostCurseEffect(target));
+        }
+        else
+        {
+            EventBatchId batchId = new();
+            move.User.ChangeStatBoost(Statistic.Speed, -1, true, batchId);
+            move.User.ChangeStatBoost(Statistic.Defense, 1, true, batchId);
+            move.User.ChangeStatBoost(Statistic.Attack, 1, true, batchId);
+        }
+    }
+}