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Location: cpp/openttd-patchpack/source/src/ai/ai_info.cpp
r11049:6eb2c87ed64a
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(svn r15389) -Feature: Add ability to select which base graphics set is used from the Game Options window. The change takes effect when the window is closed. This option can only be used from the intro menu, as reloading graphics during a game may cause issues.
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/** @file ai_info.cpp Implementation of AIFileInfo */
#include "../stdafx.h"
#include <squirrel.h>
#include "../script/squirrel.hpp"
#include "../script/squirrel_helper.hpp"
#include "ai.hpp"
#include "ai_info.hpp"
#include "ai_scanner.hpp"
#include "../settings_type.h"
#include "../openttd.h"
AIConfigItem _start_date_config = {
"start_date",
"The amount of days after the start of the last AI, this AI will start (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
};
AIFileInfo::~AIFileInfo()
{
this->engine->ReleaseObject(this->SQ_instance);
free((void *)this->author);
free((void *)this->name);
free((void *)this->short_name);
free((void *)this->description);
free((void *)this->date);
free((void *)this->instance_name);
free(this->main_script);
free(this->SQ_instance);
}
AILibrary::~AILibrary()
{
free((void *)this->category);
}
const char *AIFileInfo::GetAuthor()
{
if (this->author == NULL) this->author = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetAuthor");
return this->author;
}
const char *AIFileInfo::GetName()
{
if (this->name == NULL) this->name = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetName");
return this->name;
}
const char *AIFileInfo::GetShortName()
{
if (this->short_name == NULL) this->short_name = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetShortName");
return this->short_name;
}
const char *AIFileInfo::GetDescription()
{
if (this->description == NULL) this->description = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetDescription");
return this->description;
}
int AIFileInfo::GetVersion()
{
return this->engine->CallIntegerMethod(*this->SQ_instance, "GetVersion");
}
void AIFileInfo::GetSettings()
{
this->engine->CallMethod(*this->SQ_instance, "GetSettings", NULL, -1);
}
const char *AIFileInfo::GetDate()
{
if (this->date == NULL) this->date = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetDate");
return this->date;
}
const char *AIFileInfo::GetInstanceName()
{
if (this->instance_name == NULL) this->instance_name = this->engine->CallStringMethodStrdup(*this->SQ_instance, "CreateInstance");
return this->instance_name;
}
bool AIFileInfo::CanLoadFromVersion(int version)
{
if (version == -1) return true;
if (!this->engine->MethodExists(*this->SQ_instance, "CanLoadFromVersion")) return (version == this->GetVersion());
HSQUIRRELVM vm = this->engine->GetVM();
int top = sq_gettop(vm);
sq_pushobject(vm, *this->SQ_instance);
sq_pushstring(vm, OTTD2FS("CanLoadFromVersion"), -1);
sq_get(vm, -2);
sq_pushobject(vm, *this->SQ_instance);
sq_pushinteger(vm, version);
sq_call(vm, 2, SQTrue, SQFalse);
HSQOBJECT ret;
sq_getstackobj(vm, -1, &ret);
sq_settop(vm, top);
return sq_objtobool(&ret) != 0;
}
const char *AIFileInfo::GetMainScript()
{
return this->main_script;
}
void AIFileInfo::CheckMethods(SQInteger *res, const char *name)
{
if (!this->engine->MethodExists(*this->SQ_instance, name)) {
char error[1024];
snprintf(error, sizeof(error), "your info.nut/library.nut doesn't have the method '%s'", name);
this->engine->ThrowError(error);
*res = SQ_ERROR;
}
}
/* static */ SQInteger AIFileInfo::Constructor(HSQUIRRELVM vm, AIFileInfo *info, bool library)
{
SQInteger res = 0;
/* Set some basic info from the parent */
info->SQ_instance = MallocT<SQObject>(1);
Squirrel::GetInstance(vm, info->SQ_instance, 2);
/* Make sure the instance stays alive over time */
sq_addref(vm, info->SQ_instance);
info->base = ((AIScanner *)Squirrel::GetGlobalPointer(vm));
info->engine = info->base->GetEngine();
/* Check if all needed fields are there */
info->CheckMethods(&res, "GetAuthor");
info->CheckMethods(&res, "GetName");
info->CheckMethods(&res, "GetShortName");
info->CheckMethods(&res, "GetDescription");
info->CheckMethods(&res, "GetVersion");
info->CheckMethods(&res, "GetDate");
info->CheckMethods(&res, "CreateInstance");
if (library) {
info->CheckMethods(&res, "GetCategory");
}
/* Abort if one method was missing */
if (res != 0) return res;
info->main_script = strdup(info->base->GetMainScript());
return 0;
}
/* static */ SQInteger AIInfo::Constructor(HSQUIRRELVM vm)
{
/* Get the AIInfo */
SQUserPointer instance;
sq_getinstanceup(vm, 2, &instance, 0);
AIInfo *info = (AIInfo *)instance;
SQInteger res = AIFileInfo::Constructor(vm, info, false);
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")) {
info->GetSettings();
}
/* 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;
SQInteger res = AIFileInfo::Constructor(vm, info, false);
if (res != 0) return res;
/* 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;
}
AIInfo::~AIInfo()
{
/* Free all allocated strings */
for (AIConfigItemList::iterator it = this->config_list.begin(); it != this->config_list.end(); it++) {
free((char *)(*it).name);
free((char *)(*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();
}
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;
sq_getstring(vm, -2, &sqkey);
const char *key = FS2OTTD(sqkey);
if (strcmp(key, "name") == 0) {
const SQChar *sqvalue;
sq_getstring(vm, -1, &sqvalue);
config.name = strdup(FS2OTTD(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 = (char *)strchr(config.name, '=')) != NULL) *s = '_';
while ((s = (char *)strchr(config.name, ',')) != NULL) *s = '_';
items |= 0x001;
} else if (strcmp(key, "description") == 0) {
const SQChar *sqdescription;
sq_getstring(vm, -1, &sqdescription);
config.description = strdup(FS2OTTD(sqdescription));
items |= 0x002;
} else if (strcmp(key, "min_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.min_value = res;
items |= 0x004;
} else if (strcmp(key, "max_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.max_value = res;
items |= 0x008;
} else if (strcmp(key, "easy_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.easy_value = res;
items |= 0x010;
} else if (strcmp(key, "medium_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.medium_value = res;
items |= 0x020;
} else if (strcmp(key, "hard_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.hard_value = res;
items |= 0x040;
} else if (strcmp(key, "random_deviation") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.random_deviation = res;
items |= 0x200;
} else if (strcmp(key, "custom_value") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.custom_value = res;
items |= 0x080;
} else if (strcmp(key, "step_size") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
config.step_size = res;
} else if (strcmp(key, "flags") == 0) {
SQInteger res;
sq_getinteger(vm, -1, &res);
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;
sq_getstring(vm, -2, &sq_setting_name);
const char *setting_name = FS2OTTD(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;
sq_getstring(vm, -2, &sq_key);
sq_getstring(vm, -1, &sq_label);
/* Because squirrel doesn't support identifiers starting with a digit,
* we skip the first character. */
const char *key_string = FS2OTTD(sq_key);
int key = atoi(key_string + 1);
const char *label = FS2OTTD(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()
{
return &this->config_list;
}
const AIConfigItem *AIInfo::GetConfigItem(const char *name)
{
for (AIConfigItemList::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)
{
for (AIConfigItemList::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, true);
if (res != 0) {
delete library;
return res;
}
/* Register the Library to the base system */
library->base->RegisterLibrary(library);
return 0;
}
const char *AILibrary::GetCategory()
{
if (this->category == NULL) this->category = this->engine->CallStringMethodStrdup(*this->SQ_instance, "GetCategory");
return this->category;
}
/* 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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