(svn r15045) -Add [NoAI API CHANGE]: in info.nut you can now have (optional) a CanLoadFromVersion(version), which should return true/false, to indicate if you can load a savegame made with your AI of version 'version'

-Add [NoAI API CHANGE]: in main.nut the Load() function now should be Load(version, data), where 'version' is the version of your AI which made the savegame
-Codechange [NoAI]: various of function renames to make things more sane
-Add [NoAI]: push the 'version' of the AI through various of layers
-Codechange [NoAI]: various of code cleanups
-Add [NoAI]: store the version of the AI in the savegame too

1 files changed, 19 insertions, 2 deletions

diff --git a/src/ai/ai_info.cpp b/src/ai/ai_info.cpp
index 80f6f9e8d..e55affaa5 100644
--- a/src/ai/ai_info.cpp
+++ b/src/ai/ai_info.cpp
@@ -70,9 +70,26 @@ const char *AIFileInfo::GetInstanceName()
 	return this->instance_name;
 }
 
-bool AIFileInfo::AllowStartup()
+bool AIFileInfo::CanLoadFromVersion(int version)
 {
-	return true;
+	if (version == -1) return true;
+	if (!this->engine->MethodExists(*this->SQ_instance, "CanLoadFromVersion")) return true;
+
+	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);
 }
 
 const char *AIFileInfo::GetDirName()