Desert Strife AI - Version 1

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class AI
{
    public class AIMove
    {
        public ArmyView Army;
        public TileView Target;

        public AIMove(ArmyView army, TileView target)
        {
            Army = army;
            Target = target;
        }
    }

    public static AIMove RunAI(List<ArmyView> allies, List<ArmyView> enemies, TileView[,] world)
    {
        foreach (var ally in allies)
        {
            if (!ally.CanMove) continue;

            //move towards closest enemy
            ArmyView closestEnemy = null;
            int closestDistance = int.MaxValue;
            foreach (var enemy in enemies)
            {
                //can find path to target?
                if (PathFinder.FindPath(world, ally.CurrentTile.Position, enemy.CurrentTile.Position, ally.TeamID) == null)
                    continue;

                //check if closest target
                float distance = Distance(ally, enemy);
                if (distance < closestDistance)
                {
                    distance = closestDistance;
                    closestEnemy = enemy;
                }
            }
            return new AIMove(ally, closestEnemy.CurrentTile);
        }
        return null;
    }

    private static float Distance(ArmyView army1, ArmyView army2)
    {
        return Vector2.Distance(army1.Position, army2.Position);
    }
}