More moves implemented

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

@@ -0,0 +1,31 @@
+using PkmnLib.Plugin.Gen7.Scripts.Side;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Moves;
+
+[Script(ScriptCategory.Move, "echoed_voice")]
+public class EchoedVoice : Script
+{
+    /// <inheritdoc />
+    public override void ChangeDamageModifier(IExecutingMove move, IPokemon target, byte hit, ref float modifier)
+    {
+        var battleData = move.User.BattleData;
+        if (battleData == null)
+            return;
+        var side = battleData.Battle.Sides[battleData.SideIndex];
+        var echoedVoiceData = side.VolatileScripts.Get<EchoedVoiceData>();
+        if (echoedVoiceData == null)
+            return;
+
+        modifier *= 2;
+    }
+
+    /// <inheritdoc />
+    public override void OnSecondaryEffect(IExecutingMove move, IPokemon target, byte hit)
+    {
+        var battleData = move.User.BattleData;
+        if (battleData == null)
+            return;
+        var side = battleData.Battle.Sides[battleData.SideIndex];
+        side.VolatileScripts.Add(new EchoedVoiceData());
+    }
+}