source: tags/1.2.0/AI Template/CevoDotNet/Program.cs

using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;

namespace Loader
{
        unsafe static class Program
        {
                delegate void CallPlayerHandler(int command, int player, int* data);

                [DllImport("cevo.dll", CallingConvention = CallingConvention.StdCall)]
                static extern void Run(IntPtr clientPtr);

                static CallPlayerHandler callPlayerHandler;
                static IntPtr clientPtr;
                static IntPtr serverPtr;

                static AIPlugin[] playerPlugin = new AIPlugin[Protocol.nPl];
                //static bool getReadyDone = false;
                static bool breakGameDone = false;

                static void CallPlayer(int command, int player, int* data)
                {
                        if (command >= Protocol.cTurn)
                        {
                                if (player >= 0 && playerPlugin[player] != null)
                                        playerPlugin[player].Call(command, (IntPtr)data);
                        }
                        else
                        {
                                switch (command)
                                {
                                        case Protocol.cInitModule:
                                                {
                                                        serverPtr = ((IntPtr*)data)[0];
                                                        ((int*)data)[2] = 4096; // reserve maximum possible
                                                        break;
                                                }

                                        case Protocol.cNewGame:
                                        case Protocol.cLoadGame:
                                                { // possibly called multiple times per game because loader controls all .NET AIs
                                                        // read string from data
                                                        string assemblyPath = "";
                                                        byte* read = (byte*)(data + 4 + 2 * Protocol.nPl);
                                                        while (*read != 0)
                                                        {
                                                                assemblyPath += (char)*read;
                                                                read++;
                                                        }

                                                        for (int playerX = 0; playerX < Protocol.nPl; playerX++)
                                                                if (data[4 + Protocol.nPl + playerX] != 0)
                                                                { // it's one of the players to use this assembly
                                                                        playerPlugin[playerX] = new AIPlugin(assemblyPath);
                                                                        playerPlugin[playerX].Initialize(playerX, serverPtr, (IntPtr)data, command == Protocol.cNewGame);
                                                                }

                                                        //getReadyDone = false;
                                                        breakGameDone = false;
                                                        break;
                                                }

                                        //case Protocol.cGetReady:
                                        //    { // possibly called multiple times per game because loader controls all .NET AIs
                                        //        if (!getReadyDone)
                                        //        {
                                        //            getReadyDone = true;
                                        //            for (int playerX = 0; playerX < Protocol.nPl; playerX++)
                                        //            {
                                        //                if (playerPlugin[playerX] != null)
                                        //                    playerPlugin[playerX].Call(command, new IntPtr(data));
                                        //            }
                                        //        }
                                        //        break;
                                        //    }

                                        case Protocol.cBreakGame:
                                                { // possibly called multiple times per game because loader controls all .NET AIs
                                                        if (!breakGameDone)
                                                        {
                                                                breakGameDone = true;
                                                                Array.Clear(playerPlugin, 0, Protocol.nPl);
                                                        }
                                                        break;
                                                }
                                }
                        }
                }

                /// <summary>
                /// The main entry point for the application.
                /// </summary>
                [STAThread]
                static void Main()
                {
                        callPlayerHandler = CallPlayer;
                        clientPtr = Marshal.GetFunctionPointerForDelegate(callPlayerHandler);
                        Run(clientPtr);
                }
        }
}