truelight@9361: /* $Id$ */
truelight@9361: 
rubidium@9430: /** @file ai_object.cpp handles the commands-related functions of the AIObject class */
truelight@9361: 
rubidium@9430: #include "ai_object.hpp"
truelight@9441: #include "../../command.h"
rubidium@9430: #include "../../player.h"
rubidium@9511: #include "table/strings.h" // for signs.h
rubidium@9511: #include "../../signs.h" // for _new_sign_id
truelight@9441: #include "../ai.h"
rubidium@9444: #include "../ai_threads.h"
truelight@9361: 
truelight@9450: void AIObject::SetDoCommandDelay(uint ticks)
truelight@9450: {
truelight@9450: 	assert(ticks > 0);
truelight@9450: 	AIObject::GetDoCommandStruct(_current_player)->delay = ticks;
truelight@9450: }
truelight@9450: 
truelight@9450: uint AIObject::GetDoCommandDelay()
truelight@9450: {
truelight@9450: 	return AIObject::GetDoCommandStruct(_current_player)->delay;
truelight@9450: }
truelight@9450: 
truelight@9473: void AIObject::SetDoCommandMode(AIModeProc *proc, AIObject *instance)
truelight@9450: {
truelight@9450: 	AIObject::GetDoCommandStruct(_current_player)->mode = proc;
truelight@9473: 	AIObject::GetDoCommandStruct(_current_player)->mode_instance = instance;
truelight@9450: }
truelight@9450: 
truelight@9450: AIModeProc *AIObject::GetDoCommandMode()
truelight@9450: {
truelight@9450: 	return AIObject::GetDoCommandStruct(_current_player)->mode;
truelight@9450: }
truelight@9450: 
truelight@9473: AIObject *AIObject::GetDoCommandModeInstance()
truelight@9473: {
truelight@9473: 	return AIObject::GetDoCommandStruct(_current_player)->mode_instance;
truelight@9473: }
truelight@9473: 
glx@9629: void AIObject::SetDoCommandCosts(Money value)
truelight@9414: {
glx@9629: 	AIObject::GetDoCommandStruct(_current_player)->costs = CommandCost(value);
truelight@9414: }
truelight@9414: 
glx@9629: void AIObject::IncreaseDoCommandCosts(Money value)
truelight@9414: {
glx@9629: 	AIObject::GetDoCommandStruct(_current_player)->costs.AddCost(value);
truelight@9452: }
truelight@9452: 
glx@9629: Money AIObject::GetDoCommandCosts()
truelight@9452: {
glx@9629: 	return AIObject::GetDoCommandStruct(_current_player)->costs.GetCost();
truelight@9414: }
truelight@9414: 
truelight@9496: void AIObject::SetNewVehicleID(VehicleID vehicle)
truelight@9496: {
truelight@9496: 	AIObject::GetDoCommandStruct(_current_player)->new_vehicle_id = vehicle;
truelight@9496: }
truelight@9496: 
truelight@9496: VehicleID AIObject::GetNewVehicleID()
truelight@9496: {
truelight@9496: 	return AIObject::GetDoCommandStruct(_current_player)->new_vehicle_id;
truelight@9496: }
truelight@9496: 
rubidium@9511: void AIObject::SetNewSignID(SignID sign)
rubidium@9511: {
rubidium@9511: 	AIObject::GetDoCommandStruct(_current_player)->new_sign_id = sign;
rubidium@9511: }
rubidium@9511: 
rubidium@9511: SignID AIObject::GetNewSignID()
rubidium@9511: {
rubidium@9511: 	return AIObject::GetDoCommandStruct(_current_player)->new_sign_id;
rubidium@9511: }
rubidium@9511: 
truelight@9682: void *&AIObject::GetEventPointer()
truelight@9680: {
truelight@9682: 	return AIObject::GetDoCommandStruct(_current_player)->event_data;
truelight@9680: }
truelight@9680: 
truelight@9450: AIObject::AIDoCommandStruct *AIObject::GetDoCommandStruct(PlayerID player)
truelight@9450: {
truelight@9450: 	/* Storage for data on per-AI level */
truelight@9450: 	static AIObject::AIDoCommandStruct command_struct[MAX_PLAYERS];
truelight@9682: 	static bool initialized = false;
truelight@9682: 
truelight@9682: 	/* Make sure all memory is NULL when we start */
truelight@9682: 	if (!initialized) {
truelight@9682: 		initialized = true;
truelight@9682: 		memset(&command_struct, 0, sizeof(command_struct));
truelight@9682: 	}
truelight@9450: 
truelight@9454: 	return &command_struct[player];
truelight@9454: }
truelight@9450: 
truelight@9454: void AIObject::ResetInternalPlayerData()
truelight@9454: {
truelight@9454: 	AIObject::AIDoCommandStruct *command_struct = GetDoCommandStruct(_current_player);
truelight@9454: 	command_struct->mode = NULL;
truelight@9454: 	command_struct->delay = 1;
glx@9629: 	command_struct->costs = CommandCost();
truelight@9682: 	if (command_struct->event_data != NULL) AIEventController::FreeEventPointer();
truelight@9682: 	command_struct->event_data = NULL;
truelight@9450: }
truelight@9450: 
truelight@9695: bool AIObject::DoCommand(TileIndex tile, uint32 p1, uint32 p2, uint procc, bool water_protection)
truelight@9361: {
truelight@9486: 	uint32 flags = 0;
truelight@9361: 	PlayerID old_lp;
glx@9629: 	CommandCost res;
truelight@9361: 	const char* tmp_cmdtext;
truelight@9361: 
truelight@9486: 	if (procc != CMD_LANDSCAPE_CLEAR) flags |= DC_AUTO;
truelight@9695: 	if (water_protection) flags |= DC_NO_WATER;
truelight@9486: 
truelight@9361: 	/* The test already resets _cmd_text, so backup the pointer */
truelight@9361: 	tmp_cmdtext = _cmd_text;
truelight@9361: 
truelight@9361: 	/* First, do a test-run to see if we can do this */
truelight@9486: 	res = ::DoCommand(tile, p1, p2, flags, procc);
truelight@9450: 	/* The command failed, so return */
truelight@9452: 	if (::CmdFailed(res)) return false;
truelight@9450: 
truelight@9473: 	/* Restore _cmd_text */
truelight@9473: 	_cmd_text = tmp_cmdtext;
truelight@9473: 
truelight@9450: 	/* Check what the callback wants us to do */
truelight@9486: 	if (AIObject::GetDoCommandMode() != NULL && !AIObject::GetDoCommandMode()(tile, p1, p2, procc, res)) {
glx@9629: 		AIObject::IncreaseDoCommandCosts(res.GetCost());
truelight@9452: 		return true;
truelight@9452: 	}
truelight@9361: 
truelight@9361: 	/* If we did a DC_EXEC, and the command did not return an error, execute it
truelight@9361: 	 * over the network */
truelight@9361: 	if (flags & DC_AUTO)     procc |= CMD_AUTO;
truelight@9361: 	if (flags & DC_NO_WATER) procc |= CMD_NO_WATER;
truelight@9361: 
truelight@9361: #ifdef ENABLE_NETWORK
truelight@9361: 	/* Send the command */
truelight@9361: 	if (_networking) {
truelight@9406: 		/* NetworkSend_Command needs _local_player to be set correctly, so
truelight@9406: 		 * adjust it, and put it back right after the function */
truelight@9406: 		old_lp = _local_player;
truelight@9406: 		_local_player = _current_player;
truelight@9441: 		::NetworkSend_Command(tile, p1, p2, procc, CcAI);
truelight@9441: 		_local_player = old_lp;
truelight@9406: 
truelight@9441: 		/* Suspend the AI till the command is really executed */
truelight@9508: 		AI_SuspendPlayer(_current_player, -(int)AIObject::GetDoCommandDelay());
truelight@9441: 		/* Check if the callback still agrees with us, else return error */
truelight@9441: 		if (!AI_GetCallbackResult(_current_player)) res = CMD_ERROR;
truelight@9361: 	} else {
truelight@9361: #else
truelight@9361: 	{
truelight@9361: #endif
truelight@9361: 		/* For SinglePlayer we execute the command immediatly */
truelight@9441: 		::DoCommandP(tile, p1, p2, NULL, procc);
truelight@9496: 		/* Store some values inside the AIObject static memory */
truelight@9496: 		AIObject::SetNewVehicleID(_new_vehicle_id);
rubidium@9511: 		AIObject::SetNewSignID(_new_sign_id);
truelight@9496: 
truelight@9441: 		/* Suspend the AI player for 1 tick, so it simulates MultiPlayer */
truelight@9473: 		AI_SuspendPlayer(_current_player, AIObject::GetDoCommandDelay());
truelight@9361: 	}
truelight@9361: 
truelight@9452: 	if (::CmdFailed(res)) return false;
truelight@9452: 
glx@9629: 	AIObject::IncreaseDoCommandCosts(res.GetCost());
truelight@9452: 	return true;
truelight@9361: }