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Location: cpp/openttd-patchpack/source/src/script/api/script_controller.cpp
r24794:5703ff4448b2
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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 | /*
* 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 script_controller.cpp Implementation of ScriptControler. */
#include "../../stdafx.h"
#include "../../string_func.h"
#include "../../script/squirrel.hpp"
#include "../../rev.h"
#include "script_controller.hpp"
#include "script_error.hpp"
#include "../script_fatalerror.hpp"
#include "../script_info.hpp"
#include "../script_instance.hpp"
#include "script_log.hpp"
#include "../../ai/ai_gui.hpp"
#include "../../settings_type.h"
#include "../../network/network.h"
#include "../../safeguards.h"
/* static */ void ScriptController::SetCommandDelay(int ticks)
{
if (ticks <= 0) return;
ScriptObject::SetDoCommandDelay(ticks);
}
/* static */ void ScriptController::Sleep(int ticks)
{
if (!ScriptObject::CanSuspend()) {
throw Script_FatalError("You are not allowed to call Sleep in your constructor, Save(), Load(), and any valuator.");
}
if (ticks <= 0) {
ScriptLog::Warning("Sleep() value should be > 0. Assuming value 1.");
ticks = 1;
}
throw Script_Suspend(ticks, nullptr);
}
/* static */ void ScriptController::Break(const char* message)
{
if (_network_dedicated || !_settings_client.gui.ai_developer_tools) return;
ScriptObject::GetActiveInstance()->Pause();
char log_message[1024];
seprintf(log_message, lastof(log_message), "Break: %s", message);
ScriptLog::Log(ScriptLog::LOG_SQ_ERROR, log_message);
/* Inform script developer that his script has been paused and
* needs manual action to continue. */
ShowAIDebugWindow(ScriptObject::GetRootCompany());
if ((_pause_mode & PM_PAUSED_NORMAL) == PM_UNPAUSED) {
ScriptObject::DoCommand(0, PM_PAUSED_NORMAL, 1, CMD_PAUSE);
}
}
/* static */ void ScriptController::Print(bool error_msg, const char *message)
{
ScriptLog::Log(error_msg ? ScriptLog::LOG_SQ_ERROR : ScriptLog::LOG_SQ_INFO, message);
}
ScriptController::ScriptController(CompanyID company) :
ticks(0),
loaded_library_count(0)
{
ScriptObject::SetCompany(company);
}
ScriptController::~ScriptController()
{
for (const auto &item : this->loaded_library) {
free(item.second);
free(item.first);
}
this->loaded_library.clear();
}
/* static */ uint ScriptController::GetTick()
{
return ScriptObject::GetActiveInstance()->GetController()->ticks;
}
/* static */ int ScriptController::GetOpsTillSuspend()
{
return ScriptObject::GetActiveInstance()->GetOpsTillSuspend();
}
/* static */ int ScriptController::GetSetting(const char *name)
{
return ScriptObject::GetActiveInstance()->GetSetting(name);
}
/* static */ uint ScriptController::GetVersion()
{
return _openttd_newgrf_version;
}
/* static */ HSQOBJECT ScriptController::Import(const char *library, const char *class_name, int version)
{
ScriptController *controller = ScriptObject::GetActiveInstance()->GetController();
Squirrel *engine = ScriptObject::GetActiveInstance()->engine;
HSQUIRRELVM vm = engine->GetVM();
ScriptInfo *lib = ScriptObject::GetActiveInstance()->FindLibrary(library, version);
if (lib == nullptr) {
char error[1024];
seprintf(error, lastof(error), "couldn't find library '%s' with version %d", library, version);
throw sq_throwerror(vm, error);
}
/* Internally we store libraries as 'library.version' */
char library_name[1024];
seprintf(library_name, lastof(library_name), "%s.%d", library, version);
strtolower(library_name);
/* Get the current table/class we belong to */
HSQOBJECT parent;
sq_getstackobj(vm, 1, &parent);
char fake_class[1024];
LoadedLibraryList::iterator it = controller->loaded_library.find(library_name);
if (it != controller->loaded_library.end()) {
strecpy(fake_class, (*it).second, lastof(fake_class));
} else {
int next_number = ++controller->loaded_library_count;
/* Create a new fake internal name */
seprintf(fake_class, lastof(fake_class), "_internalNA%d", next_number);
/* Load the library in a 'fake' namespace, so we can link it to the name the user requested */
sq_pushroottable(vm);
sq_pushstring(vm, fake_class, -1);
sq_newclass(vm, SQFalse);
/* Load the library */
if (!engine->LoadScript(vm, lib->GetMainScript(), false)) {
char error[1024];
seprintf(error, lastof(error), "there was a compile error when importing '%s' version %d", library, version);
throw sq_throwerror(vm, error);
}
/* Create the fake class */
sq_newslot(vm, -3, SQFalse);
sq_pop(vm, 1);
controller->loaded_library[stredup(library_name)] = stredup(fake_class);
}
/* Find the real class inside the fake class (like 'sets.Vector') */
sq_pushroottable(vm);
sq_pushstring(vm, fake_class, -1);
if (SQ_FAILED(sq_get(vm, -2))) {
throw sq_throwerror(vm, "internal error assigning library class");
}
sq_pushstring(vm, lib->GetInstanceName(), -1);
if (SQ_FAILED(sq_get(vm, -2))) {
char error[1024];
seprintf(error, lastof(error), "unable to find class '%s' in the library '%s' version %d", lib->GetInstanceName(), library, version);
throw sq_throwerror(vm, error);
}
HSQOBJECT obj;
sq_getstackobj(vm, -1, &obj);
sq_pop(vm, 3);
if (StrEmpty(class_name)) return obj;
/* Now link the name the user wanted to our 'fake' class */
sq_pushobject(vm, parent);
sq_pushstring(vm, class_name, -1);
sq_pushobject(vm, obj);
sq_newclass(vm, SQTrue);
sq_newslot(vm, -3, SQFalse);
sq_pop(vm, 1);
return obj;
}
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