diff --git a/ai/ai.c b/ai/ai.c
deleted file mode 100644
--- a/ai/ai.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/* $Id$ */
-
-#include "../stdafx.h"
-#include "../openttd.h"
-#include "../variables.h"
-#include "../command.h"
-#include "../network/network.h"
-#include "ai.h"
-#include "default/default.h"
-
-/**
- * Dequeues commands put in the queue via AI_PutCommandInQueue.
- */
-static void AI_DequeueCommands(PlayerID player)
-{
-	AICommand *com, *entry_com;
-
-	entry_com = _ai_player[player].queue;
-
-	/* It happens that DoCommandP issues a new DoCommandAI which adds a new command
-	 *  to this very same queue (don't argue about this, if it currently doesn't
-	 *  happen I can tell you it will happen with AIScript -- TrueLight). If we
-	 *  do not make the queue NULL, that commands will be dequeued immediatly.
-	 *  Therefor we safe the entry-point to entry_com, and make the queue NULL, so
-	 *  the new queue can be safely built up. */
-	_ai_player[player].queue = NULL;
-	_ai_player[player].queue_tail = NULL;
-
-	/* Dequeue all commands */
-	while ((com = entry_com) != NULL) {
-		_current_player = player;
-
-		_cmd_text = com->text;
-		DoCommandP(com->tile, com->p1, com->p2, com->callback, com->procc);
-
-		/* Free item */
-		entry_com = com->next;
-		free(com->text);
-		free(com);
-	}
-}
-
-/**
- * Needed for SP; we need to delay DoCommand with 1 tick, because else events
- *  will make infinite loops (AIScript).
- */
-static void AI_PutCommandInQueue(PlayerID player, TileIndex tile, uint32 p1, uint32 p2, uint procc, CommandCallback* callback)
-{
-	AICommand *com;
-
-	if (_ai_player[player].queue_tail == NULL) {
-		/* There is no item in the queue yet, create the queue */
-		_ai_player[player].queue = malloc(sizeof(AICommand));
-		_ai_player[player].queue_tail = _ai_player[player].queue;
-	} else {
-		/* Add an item at the end */
-		_ai_player[player].queue_tail->next = malloc(sizeof(AICommand));
-		_ai_player[player].queue_tail = _ai_player[player].queue_tail->next;
-	}
-
-	/* This is our new item */
-	com = _ai_player[player].queue_tail;
-
-	/* Assign the info */
-	com->tile  = tile;
-	com->p1    = p1;
-	com->p2    = p2;
-	com->procc = procc;
-	com->callback = callback;
-	com->next  = NULL;
-	com->text  = NULL;
-
-	/* Copy the cmd_text, if needed */
-	if (_cmd_text != NULL) {
-		com->text = strdup(_cmd_text);
-		_cmd_text = NULL;
-	}
-}
-
-/**
- * Executes a raw DoCommand for the AI.
- */
-int32 AI_DoCommandCc(TileIndex tile, uint32 p1, uint32 p2, uint32 flags, uint procc, CommandCallback* callback)
-{
-	PlayerID old_lp;
-	int32 res = 0;
-	const char* tmp_cmdtext;
-
-	/* If you enable DC_EXEC with DC_QUERY_COST you are a really strange
-	 *   person.. should we check for those funny jokes?
-	 */
-
-	/* The test already resets _cmd_text, so backup the pointer */
-	tmp_cmdtext = _cmd_text;
-
-	/* First, do a test-run to see if we can do this */
-	res = DoCommand(tile, p1, p2, flags & ~DC_EXEC, procc);
-	/* The command failed, or you didn't want to execute, or you are quering, return */
-	if (CmdFailed(res) || !(flags & DC_EXEC) || (flags & DC_QUERY_COST)) {
-		return res;
-	}
-
-	/* Restore _cmd_text */
-	_cmd_text = tmp_cmdtext;
-
-	/* If we did a DC_EXEC, and the command did not return an error, execute it
-	 * over the network */
-	if (flags & DC_AUTO)     procc |= CMD_AUTO;
-	if (flags & DC_NO_WATER) procc |= CMD_NO_WATER;
-
-	/* NetworkSend_Command needs _local_player to be set correctly, so
-	 * adjust it, and put it back right after the function */
-	old_lp = _local_player;
-	_local_player = _current_player;
-
-#ifdef ENABLE_NETWORK
-	/* Send the command */
-	if (_networking) {
-		/* Network is easy, send it to his handler */
-		NetworkSend_Command(tile, p1, p2, procc, callback);
-	} else {
-#else
-	{
-#endif
-		/* If we execute BuildCommands directly in SP, we have a big problem with events
-		 *  so we need to delay is for 1 tick */
-		AI_PutCommandInQueue(_current_player, tile, p1, p2, procc, callback);
-	}
-
-	/* Set _local_player back */
-	_local_player = old_lp;
-
-	return res;
-}
-
-
-int32 AI_DoCommand(TileIndex tile, uint32 p1, uint32 p2, uint32 flags, uint procc)
-{
-	return AI_DoCommandCc(tile, p1, p2, flags, procc, NULL);
-}
-
-
-/**
- * Run 1 tick of the AI. Don't overdo it, keep it realistic.
- */
-static void AI_RunTick(PlayerID player)
-{
-	extern void AiNewDoGameLoop(Player *p);
-
-	Player *p = GetPlayer(player);
-	_current_player = player;
-
-	if (_patches.ainew_active) {
-		AiNewDoGameLoop(p);
-	} else {
-		/* Enable all kind of cheats the old AI needs in order to operate correctly... */
-		_is_old_ai_player = true;
-		AiDoGameLoop(p);
-		_is_old_ai_player = false;
-	}
-}
-
-
-/**
- * The gameloop for AIs.
- *  Handles one tick for all the AIs.
- */
-void AI_RunGameLoop(void)
-{
-	/* Don't do anything if ai is disabled */
-	if (!_ai.enabled) return;
-
-	/* Don't do anything if we are a network-client, or the AI has been disabled */
-	if (_networking && (!_network_server || !_patches.ai_in_multiplayer)) return;
-
-	/* New tick */
-	_ai.tick++;
-
-	/* Make sure the AI follows the difficulty rule.. */
-	assert(_opt.diff.competitor_speed <= 4);
-	if ((_ai.tick & ((1 << (4 - _opt.diff.competitor_speed)) - 1)) != 0) return;
-
-	/* Check for AI-client (so joining a network with an AI) */
-	if (!_networking || _network_server) {
-		/* Check if we want to run AIs (server or SP only) */
-		const Player* p;
-
-		FOR_ALL_PLAYERS(p) {
-			if (p->is_active && p->is_ai) {
-				/* This should always be true, else something went wrong... */
-				assert(_ai_player[p->index].active);
-
-				/* Run the script */
-				AI_DequeueCommands(p->index);
-				AI_RunTick(p->index);
-			}
-		}
-	}
-
-	_current_player = OWNER_NONE;
-}
-
-/**
- * A new AI sees the day of light. You can do here what ever you think is needed.
- */
-void AI_StartNewAI(PlayerID player)
-{
-	assert(IsValidPlayer(player));
-
-	/* Called if a new AI is booted */
-	_ai_player[player].active = true;
-}
-
-/**
- * This AI player died. Give it some chance to make a final puf.
- */
-void AI_PlayerDied(PlayerID player)
-{
-	/* Called if this AI died */
-	_ai_player[player].active = false;
-}
-
-/**
- * Initialize some AI-related stuff.
- */
-void AI_Initialize(void)
-{
-	/* First, make sure all AIs are DEAD! */
-	AI_Uninitialize();
-
-	memset(&_ai, 0, sizeof(_ai));
-	memset(&_ai_player, 0, sizeof(_ai_player));
-
-	_ai.enabled = true;
-}
-
-/**
- * Deinitializer for AI-related stuff.
- */
-void AI_Uninitialize(void)
-{
-	const Player* p;
-
-	FOR_ALL_PLAYERS(p) {
-		if (p->is_active && p->is_ai) AI_PlayerDied(p->index);
-	}
-}