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@ r24498:e9114d9ab04a
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Location: cpp/openttd-patchpack/source/src/ai/ai_scanner.cpp
r24498:e9114d9ab04a
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Fix #6468: don't store version of AIs-started-via-console in name
You can do: "startai myai.3", which starts version 3 of "myai".
This is very useful for testing save/load code between different
versions of your AI.
However, when using this syntax, the AI got saved as "myai.3" as
name of the AI, instead of "myai". This caused several problems,
like indicating to the user the AI could not be found, but still
load the AI. But in all cases, the AI never got the chance to
load the saved data, making the whole reason this exists pointless.
By splitting the name and version already in the console command,
the code becomes simpler and AIs started this way now follow the
normal flow after initialization.
You can do: "startai myai.3", which starts version 3 of "myai".
This is very useful for testing save/load code between different
versions of your AI.
However, when using this syntax, the AI got saved as "myai.3" as
name of the AI, instead of "myai". This caused several problems,
like indicating to the user the AI could not be found, but still
load the AI. But in all cases, the AI never got the chance to
load the saved data, making the whole reason this exists pointless.
By splitting the name and version already in the console command,
the code becomes simpler and AIs started this way now follow the
normal flow after initialization.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 | /*
* 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_scanner.cpp allows scanning AI scripts */
#include "../stdafx.h"
#include "../debug.h"
#include "../network/network.h"
#include "../core/random_func.hpp"
#include "../script/squirrel_class.hpp"
#include "ai_info.hpp"
#include "ai_scanner.hpp"
#include "../safeguards.h"
AIScannerInfo::AIScannerInfo() :
ScriptScanner(),
info_dummy(nullptr)
{
}
void AIScannerInfo::Initialize()
{
ScriptScanner::Initialize("AIScanner");
ScriptAllocatorScope alloc_scope(this->engine);
/* Create the dummy AI */
free(this->main_script);
this->main_script = stredup("%_dummy");
extern void Script_CreateDummyInfo(HSQUIRRELVM vm, const char *type, const char *dir);
Script_CreateDummyInfo(this->engine->GetVM(), "AI", "ai");
}
void AIScannerInfo::SetDummyAI(class AIInfo *info)
{
this->info_dummy = info;
}
AIScannerInfo::~AIScannerInfo()
{
delete this->info_dummy;
}
void AIScannerInfo::GetScriptName(ScriptInfo *info, char *name, const char *last)
{
seprintf(name, last, "%s", info->GetName());
}
void AIScannerInfo::RegisterAPI(class Squirrel *engine)
{
AIInfo::RegisterAPI(engine);
}
AIInfo *AIScannerInfo::SelectRandomAI() const
{
uint num_random_ais = 0;
for (ScriptInfoList::const_iterator it = this->info_single_list.begin(); it != this->info_single_list.end(); it++) {
AIInfo *i = static_cast<AIInfo *>((*it).second);
if (i->UseAsRandomAI()) num_random_ais++;
}
if (num_random_ais == 0) {
DEBUG(script, 0, "No suitable AI found, loading 'dummy' AI.");
return this->info_dummy;
}
/* Find a random AI */
uint pos;
if (_networking) {
pos = InteractiveRandomRange(num_random_ais);
} else {
pos = RandomRange(num_random_ais);
}
/* Find the Nth item from the array */
ScriptInfoList::const_iterator it = this->info_single_list.begin();
#define GetAIInfo(it) static_cast<AIInfo *>((*it).second)
while (!GetAIInfo(it)->UseAsRandomAI()) it++;
for (; pos > 0; pos--) {
it++;
while (!GetAIInfo(it)->UseAsRandomAI()) it++;
}
return GetAIInfo(it);
#undef GetAIInfo
}
AIInfo *AIScannerInfo::FindInfo(const char *nameParam, int versionParam, bool force_exact_match)
{
if (this->info_list.size() == 0) return nullptr;
if (nameParam == nullptr) return nullptr;
char ai_name[1024];
strecpy(ai_name, nameParam, lastof(ai_name));
strtolower(ai_name);
if (versionParam == -1) {
/* We want to load the latest version of this AI; so find it */
if (this->info_single_list.find(ai_name) != this->info_single_list.end()) return static_cast<AIInfo *>(this->info_single_list[ai_name]);
return nullptr;
}
if (force_exact_match) {
/* Try to find a direct 'name.version' match */
char ai_name_tmp[1024];
seprintf(ai_name_tmp, lastof(ai_name_tmp), "%s.%d", ai_name, versionParam);
strtolower(ai_name_tmp);
if (this->info_list.find(ai_name_tmp) != this->info_list.end()) return static_cast<AIInfo *>(this->info_list[ai_name_tmp]);
return nullptr;
}
AIInfo *info = nullptr;
int version = -1;
/* See if there is a compatible AI which goes by that name, with the highest
* version which allows loading the requested version */
ScriptInfoList::iterator it = this->info_list.begin();
for (; it != this->info_list.end(); it++) {
AIInfo *i = static_cast<AIInfo *>((*it).second);
if (strcasecmp(ai_name, i->GetName()) == 0 && i->CanLoadFromVersion(versionParam) && (version == -1 || i->GetVersion() > version)) {
version = (*it).second->GetVersion();
info = i;
}
}
return info;
}
void AIScannerLibrary::Initialize()
{
ScriptScanner::Initialize("AIScanner");
}
void AIScannerLibrary::GetScriptName(ScriptInfo *info, char *name, const char *last)
{
AILibrary *library = static_cast<AILibrary *>(info);
seprintf(name, last, "%s.%s", library->GetCategory(), library->GetInstanceName());
}
void AIScannerLibrary::RegisterAPI(class Squirrel *engine)
{
AILibrary::RegisterAPI(engine);
}
AILibrary *AIScannerLibrary::FindLibrary(const char *library, int version)
{
/* Internally we store libraries as 'library.version' */
char library_name[1024];
seprintf(library_name, lastof(library_name), "%s.%d", library, version);
strtolower(library_name);
/* Check if the library + version exists */
ScriptInfoList::iterator iter = this->info_list.find(library_name);
if (iter == this->info_list.end()) return nullptr;
return static_cast<AILibrary *>((*iter).second);
}
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