Getting started with implementing an explicit AI, based on the Essentials one.

PkmnLib.Dynamic/AI/AIHelpers.cs

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+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Static;
+using PkmnLib.Static.Moves;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Dynamic.AI;
+
+public static class AIHelpers
+{
+    public static uint CalculateDamageEstimation(IMoveData move, IPokemon user, IPokemon target,
+        IDynamicLibrary library)
+    {
+        var hitData = new CustomHitData
+        {
+            BasePower = move.BasePower,
+            Effectiveness = library.StaticLibrary.Types.GetEffectiveness(move.MoveType, target.Types),
+            Type = move.MoveType,
+        };
+        return library.DamageCalculator.GetDamage(null, move.Category, user, target, 1, 0, hitData);
+    }
+
+    private class CustomHitData : IHitData
+    {
+        /// <inheritdoc />
+        public bool IsCritical => false;
+
+        /// <inheritdoc />
+        public ushort BasePower { get; init; }
+
+        /// <inheritdoc />
+        public float Effectiveness { get; init; }
+
+        /// <inheritdoc />
+        public uint Damage => 0;
+
+        /// <inheritdoc />
+        public TypeIdentifier? Type { get; init; }
+
+        /// <inheritdoc />
+        public bool IsContact => false;
+
+        /// <inheritdoc />
+        public bool HasFailed => false;
+
+        /// <inheritdoc />
+        public void Fail()
+        {
+        }
+
+        /// <inheritdoc />
+        public void SetFlag(StringKey flag)
+        {
+        }
+
+        /// <inheritdoc />
+        public bool HasFlag(StringKey flag) => false;
+    }
+}