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Location: cpp/openttd-patchpack/source/src/ai/ai_info.cpp - annotation
r15869:3237cbc42f75
12.1 KiB
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(svn r20561) -Fix: compiler warning
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r10696:8dfe83e30d01 r10696:8dfe83e30d01 r10696:8dfe83e30d01 r10696:8dfe83e30d01 r10696:8dfe83e30d01 r10696:8dfe83e30d01 | /* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file ai_info.cpp Implementation of AIFileInfo */
#include "../stdafx.h"
#include <squirrel.h>
#include "../script/squirrel.hpp"
#include "../script/squirrel_helper.hpp"
#include "ai_info.hpp"
#include "ai_scanner.hpp"
#include "../settings_type.h"
#include "../openttd.h"
#include "../debug.h"
#include "../rev.h"
/** Configuration for AI start date, every AI has this setting. */
AIConfigItem _start_date_config = {
"start_date",
"Number of days to start this AI after the previous one (give or take)",
AI::START_NEXT_MIN,
AI::START_NEXT_MAX,
AI::START_NEXT_MEDIUM,
AI::START_NEXT_EASY,
AI::START_NEXT_MEDIUM,
AI::START_NEXT_HARD,
AI::START_NEXT_DEVIATION,
30,
AICONFIG_NONE,
NULL
};
AILibrary::~AILibrary()
{
free((void *)this->category);
}
/* static */ SQInteger AIFileInfo::Constructor(HSQUIRRELVM vm, AIFileInfo *info)
{
SQInteger res = ScriptFileInfo::Constructor(vm, info);
if (res != 0) return res;
info->base = ((AIScanner *)Squirrel::GetGlobalPointer(vm));
return 0;
}
/**
* Check if the API version provided by the AI is supported.
* @param api_version The API version as provided by the AI.
*/
static bool CheckAPIVersion(const char *api_version)
{
return strcmp(api_version, "0.7") == 0 || strcmp(api_version, "1.0") == 0 || strcmp(api_version, "1.1") == 0;
}
/* static */ SQInteger AIInfo::Constructor(HSQUIRRELVM vm)
{
/* Get the AIInfo */
SQUserPointer instance = NULL;
if (SQ_FAILED(sq_getinstanceup(vm, 2, &instance, 0)) || instance == NULL) return sq_throwerror(vm, _SC("Pass an instance of a child class of AIInfo to RegisterAI"));
AIInfo *info = (AIInfo *)instance;
SQInteger res = AIFileInfo::Constructor(vm, info);
if (res != 0) return res;
AIConfigItem config = _start_date_config;
config.name = strdup(config.name);
config.description = strdup(config.description);
info->config_list.push_back(config);
/* Check if we have settings */
if (info->engine->MethodExists(*info->SQ_instance, "GetSettings")) {
if (!info->GetSettings()) return SQ_ERROR;
}
if (info->engine->MethodExists(*info->SQ_instance, "MinVersionToLoad")) {
if (!info->engine->CallIntegerMethod(*info->SQ_instance, "MinVersionToLoad", &info->min_loadable_version)) return SQ_ERROR;
} else {
info->min_loadable_version = info->GetVersion();
}
/* When there is an UseAsRandomAI function, call it. */
if (info->engine->MethodExists(*info->SQ_instance, "UseAsRandomAI")) {
if (!info->engine->CallBoolMethod(*info->SQ_instance, "UseAsRandomAI", &info->use_as_random)) return SQ_ERROR;
} else {
info->use_as_random = true;
}
/* Try to get the API version the AI is written for. */
if (info->engine->MethodExists(*info->SQ_instance, "GetAPIVersion")) {
if (!info->engine->CallStringMethodStrdup(*info->SQ_instance, "GetAPIVersion", &info->api_version)) return SQ_ERROR;
if (!CheckAPIVersion(info->api_version)) {
DEBUG(ai, 1, "Loading info.nut from (%s.%d): GetAPIVersion returned invalid version", info->GetName(), info->GetVersion());
return SQ_ERROR;
}
} else {
info->api_version = strdup("0.7");
}
/* Remove the link to the real instance, else it might get deleted by RegisterAI() */
sq_setinstanceup(vm, 2, NULL);
/* Register the AI to the base system */
info->base->RegisterAI(info);
return 0;
}
/* static */ SQInteger AIInfo::DummyConstructor(HSQUIRRELVM vm)
{
/* Get the AIInfo */
SQUserPointer instance;
sq_getinstanceup(vm, 2, &instance, 0);
AIInfo *info = (AIInfo *)instance;
info->api_version = NULL;
SQInteger res = AIFileInfo::Constructor(vm, info);
if (res != 0) return res;
char buf[8];
seprintf(buf, lastof(buf), "%d.%d", GB(_openttd_newgrf_version, 28, 4), GB(_openttd_newgrf_version, 24, 4));
info->api_version = strdup(buf);
/* Remove the link to the real instance, else it might get deleted by RegisterAI() */
sq_setinstanceup(vm, 2, NULL);
/* Register the AI to the base system */
info->base->SetDummyAI(info);
return 0;
}
bool AIInfo::GetSettings()
{
return this->engine->CallMethod(*this->SQ_instance, "GetSettings", NULL, -1);
}
AIInfo::AIInfo() :
min_loadable_version(0),
use_as_random(false),
api_version(NULL)
{
}
AIInfo::~AIInfo()
{
/* Free all allocated strings */
for (AIConfigItemList::iterator it = this->config_list.begin(); it != this->config_list.end(); it++) {
free((void*)(*it).name);
free((void*)(*it).description);
if (it->labels != NULL) {
for (LabelMapping::iterator it2 = (*it).labels->Begin(); it2 != (*it).labels->End(); it2++) {
free(it2->second);
}
delete it->labels;
}
}
this->config_list.clear();
free((void*)this->api_version);
}
bool AIInfo::CanLoadFromVersion(int version) const
{
if (version == -1) return true;
return version >= this->min_loadable_version && version <= this->GetVersion();
}
SQInteger AIInfo::AddSetting(HSQUIRRELVM vm)
{
AIConfigItem config;
memset(&config, 0, sizeof(config));
config.max_value = 1;
config.step_size = 1;
uint items = 0;
/* Read the table, and find all properties we care about */
sq_pushnull(vm);
while (SQ_SUCCEEDED(sq_next(vm, -2))) {
const SQChar *sqkey;
if (SQ_FAILED(sq_getstring(vm, -2, &sqkey))) return SQ_ERROR;
const char *key = SQ2OTTD(sqkey);
if (strcmp(key, "name") == 0) {
const SQChar *sqvalue;
if (SQ_FAILED(sq_getstring(vm, -1, &sqvalue))) return SQ_ERROR;
char *name = strdup(SQ2OTTD(sqvalue));
char *s;
/* Don't allow '=' and ',' in configure setting names, as we need those
* 2 chars to nicely store the settings as a string. */
while ((s = strchr(name, '=')) != NULL) *s = '_';
while ((s = strchr(name, ',')) != NULL) *s = '_';
config.name = name;
items |= 0x001;
} else if (strcmp(key, "description") == 0) {
const SQChar *sqdescription;
if (SQ_FAILED(sq_getstring(vm, -1, &sqdescription))) return SQ_ERROR;
config.description = strdup(SQ2OTTD(sqdescription));
items |= 0x002;
} else if (strcmp(key, "min_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.min_value = res;
items |= 0x004;
} else if (strcmp(key, "max_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.max_value = res;
items |= 0x008;
} else if (strcmp(key, "easy_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.easy_value = res;
items |= 0x010;
} else if (strcmp(key, "medium_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.medium_value = res;
items |= 0x020;
} else if (strcmp(key, "hard_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.hard_value = res;
items |= 0x040;
} else if (strcmp(key, "random_deviation") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.random_deviation = res;
items |= 0x200;
} else if (strcmp(key, "custom_value") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.custom_value = res;
items |= 0x080;
} else if (strcmp(key, "step_size") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.step_size = res;
} else if (strcmp(key, "flags") == 0) {
SQInteger res;
if (SQ_FAILED(sq_getinteger(vm, -1, &res))) return SQ_ERROR;
config.flags = (AIConfigFlags)res;
items |= 0x100;
} else {
char error[1024];
snprintf(error, sizeof(error), "unknown setting property '%s'", key);
this->engine->ThrowError(error);
return SQ_ERROR;
}
sq_pop(vm, 2);
}
sq_pop(vm, 1);
/* Don't allow both random_deviation and AICONFIG_RANDOM to
* be set for the same config item. */
if ((items & 0x200) != 0 && (config.flags & AICONFIG_RANDOM) != 0) {
char error[1024];
snprintf(error, sizeof(error), "Setting both random_deviation and AICONFIG_RANDOM is not allowed");
this->engine->ThrowError(error);
return SQ_ERROR;
}
/* Reset the bit for random_deviation as it's optional. */
items &= ~0x200;
/* Make sure all properties are defined */
uint mask = (config.flags & AICONFIG_BOOLEAN) ? 0x1F3 : 0x1FF;
if (items != mask) {
char error[1024];
snprintf(error, sizeof(error), "please define all properties of a setting (min/max not allowed for booleans)");
this->engine->ThrowError(error);
return SQ_ERROR;
}
this->config_list.push_back(config);
return 0;
}
SQInteger AIInfo::AddLabels(HSQUIRRELVM vm)
{
const SQChar *sq_setting_name;
if (SQ_FAILED(sq_getstring(vm, -2, &sq_setting_name))) return SQ_ERROR;
const char *setting_name = SQ2OTTD(sq_setting_name);
AIConfigItem *config = NULL;
for (AIConfigItemList::iterator it = this->config_list.begin(); it != this->config_list.end(); it++) {
if (strcmp((*it).name, setting_name) == 0) config = &(*it);
}
if (config == NULL) {
char error[1024];
snprintf(error, sizeof(error), "Trying to add labels for non-defined setting '%s'", setting_name);
this->engine->ThrowError(error);
return SQ_ERROR;
}
if (config->labels != NULL) return SQ_ERROR;
config->labels = new LabelMapping;
/* Read the table and find all labels */
sq_pushnull(vm);
while (SQ_SUCCEEDED(sq_next(vm, -2))) {
const SQChar *sq_key;
const SQChar *sq_label;
if (SQ_FAILED(sq_getstring(vm, -2, &sq_key))) return SQ_ERROR;
if (SQ_FAILED(sq_getstring(vm, -1, &sq_label))) return SQ_ERROR;
/* Because squirrel doesn't support identifiers starting with a digit,
* we skip the first character. */
const char *key_string = SQ2OTTD(sq_key);
int key = atoi(key_string + 1);
const char *label = SQ2OTTD(sq_label);
if (config->labels->Find(key) == config->labels->End()) config->labels->Insert(key, strdup(label));
sq_pop(vm, 2);
}
sq_pop(vm, 1);
return 0;
}
const AIConfigItemList *AIInfo::GetConfigList() const
{
return &this->config_list;
}
const AIConfigItem *AIInfo::GetConfigItem(const char *name) const
{
for (AIConfigItemList::const_iterator it = this->config_list.begin(); it != this->config_list.end(); it++) {
if (strcmp((*it).name, name) == 0) return &(*it);
}
return NULL;
}
int AIInfo::GetSettingDefaultValue(const char *name) const
{
for (AIConfigItemList::const_iterator it = this->config_list.begin(); it != this->config_list.end(); it++) {
if (strcmp((*it).name, name) != 0) continue;
/* The default value depends on the difficulty level */
switch ((_game_mode == GM_MENU) ? _settings_newgame.difficulty.diff_level : _settings_game.difficulty.diff_level) {
case 0: return (*it).easy_value;
case 1: return (*it).medium_value;
case 2: return (*it).hard_value;
case 3: return (*it).custom_value;
default: NOT_REACHED();
}
}
/* There is no such setting */
return -1;
}
/* static */ SQInteger AILibrary::Constructor(HSQUIRRELVM vm)
{
/* Create a new AIFileInfo */
AILibrary *library = new AILibrary();
SQInteger res = AIFileInfo::Constructor(vm, library);
if (res != 0) {
delete library;
return res;
}
/* Cache the category */
if (!library->CheckMethod("GetCategory") || !library->engine->CallStringMethodStrdup(*library->SQ_instance, "GetCategory", &library->category)) {
delete library;
return SQ_ERROR;
}
/* Register the Library to the base system */
library->base->RegisterLibrary(library);
return 0;
}
/* static */ SQInteger AILibrary::Import(HSQUIRRELVM vm)
{
SQConvert::SQAutoFreePointers ptr;
const char *library = GetParam(SQConvert::ForceType<const char *>(), vm, 2, &ptr);
const char *class_name = GetParam(SQConvert::ForceType<const char *>(), vm, 3, &ptr);
int version = GetParam(SQConvert::ForceType<int>(), vm, 4, &ptr);
if (!AI::ImportLibrary(library, class_name, version, vm)) return -1;
return 1;
}
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