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Diffstat (limited to 'src/ai/ai_info_dummy.cpp')
| -rw-r--r-- | src/ai/ai_info_dummy.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/ai/ai_info_dummy.cpp b/src/ai/ai_info_dummy.cpp new file mode 100644 index 000000000..a060a0a65 --- /dev/null +++ b/src/ai/ai_info_dummy.cpp @@ -0,0 +1,66 @@ +/* $Id$ */ + +#include <squirrel.h> +#include "../stdafx.h" + +/* The reason this exists in C++, is that a user can trash his ai/ dir, + * leaving no AIs available. The complexity to solve this is insane, and + * therefor the alternative is used, and make sure there is always an AI + * available, no matter what the situation is. By defining it in C++, there + * is simply now way a user can delete it, and therefor safe to use. It has + * to be noted that this AI is complete invisible for the user, and impossible + * to select manual. It is a fail-over in case no AIs are available. + */ + +const SQChar dummy_script_info[] = _SC(" \n\ +class DummyAI extends AIInfo { \n\ + function GetAuthor() { return \"OpenTTD NoAI Developers Team\"; } \n\ + function GetName() { return \"DummyAI\"; } \n\ + function GetDescription() { return \"A Dummy AI that is loaded when your ai/ dir is empty\"; }\n\ + function GetVersion() { return 1; } \n\ + function GetDate() { return \"2008-07-26\"; } \n\ + function CreateInstance() { return \"DummyAI\"; } \n\ +} \n\ + \n\ +RegisterDummyAI(DummyAI()); \n\ +"); + +const SQChar dummy_script[] = _SC(" \n\ +class DummyAI extends AIController { \n\ + function Start() { \n\ + AILog.Error(\"No suitable AI found to load.\"); \n\ + AILog.Error(\"This AI is a dummy AI and won't do anything.\"); \n\ + AILog.Error(\"Please add one or several AIs in your ai/ directory.\"); \n\ + } \n\ +} \n\ +"); + +void AI_CreateAIInfoDummy(HSQUIRRELVM vm) +{ + sq_pushroottable(vm); + + /* Load and run the script */ + if (SQ_SUCCEEDED(sq_compilebuffer(vm, dummy_script_info, scstrlen(dummy_script_info), _SC("dummy"), SQTrue))) { + sq_push(vm, -2); + if (SQ_SUCCEEDED(sq_call(vm, 1, SQFalse, SQTrue))) { + sq_pop(vm, 1); + return; + } + } + NOT_REACHED(); +} + +void AI_CreateAIDummy(HSQUIRRELVM vm) +{ + sq_pushroottable(vm); + + /* Load and run the script */ + if (SQ_SUCCEEDED(sq_compilebuffer(vm, dummy_script, scstrlen(dummy_script), _SC("dummy"), SQTrue))) { + sq_push(vm, -2); + if (SQ_SUCCEEDED(sq_call(vm, 1, SQFalse, SQTrue))) { + sq_pop(vm, 1); + return; + } + } + NOT_REACHED(); +} |