Support for basic AIs

PkmnLib.Dynamic/AI/RandomAI.cs

@@ -0,0 +1,45 @@
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.Models.Choices;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Dynamic.AI;
+
+/// <summary>
+/// An AI that makes random choices.
+/// </summary>
+public class RandomAI : PokemonAI
+{
+    private IRandom _random;
+    
+    /// <inheritdoc />
+    public RandomAI() : base("Random")
+    {
+        _random = new RandomImpl();
+    }
+
+    /// <inheritdoc />
+    public override ITurnChoice GetChoice(IBattle battle, IPokemon pokemon)
+    {
+        var moves = pokemon.Moves.Where(x => x?.CurrentPp > 0).ToList();
+        while (moves.Count > 0)
+        {
+            var move = moves[_random.GetInt(moves.Count)];
+            var targets = GetValidTargetsForMove(pokemon, move!).ToArray();
+            if (targets.Length == 0)
+            {
+                moves.Remove(move);
+                continue;
+            }
+            var target = targets[_random.GetInt(targets.Length)];
+            var moveTurnChoice = new MoveChoice(pokemon, move!, target.side, target.position);
+            if (battle.CanUse(moveTurnChoice))
+            {
+                return moveTurnChoice;
+            }
+            moves.Remove(move);
+        }
+        return new PassChoice(pokemon);
+    }
+    
+    
+}