These were creating dangerous interdependencies. It is better to do explicit conversions when needed.
As an added plus, this means that zstring.h no longer depends on name.h which was very annoying.
It's an optional extension of deprecated keyword:
deprecated("2.4", "use ModernFunction instead") int OldFunction();
deprecated("3.5", "use ModernVariable instead") int OldVariable;
Usage of such members will produce the following report:
Script warning, ":zscript.txt" line 123:
Accessing deprecated function OldFunction - deprecated since 2.4.0, use ModernFunction instead
Script warning, ":zscript.txt" line 456:
Accessing deprecated member variable OldVariable - deprecated since 3.5.0, use ModernVariable instead
LevelLocals on the left side of.a function call will now always be remapped to 'Level', which will either remap to the same-named instance variable or the global deprecated one.
In a few degenerate cases where there is a conflicting local variable named 'level' it may error out but that is unavoidable here but this is very unlikely.
UI always runs on the primary level, so this does not need the ability to operate on multiple levels. Additionally, this can later be set to null when running play code so that scope violations result in an abort.
It has been like this initially but was changed when ZDoom gained an overly complicated polymorphic class descriptor object that required a lot of support code. All these complications have long been removed but these methods remained. Since they prevent a class from being moved to the script side entirely they had to be removed.
This was the last major blocker to make Weapon a purely scripted class, the only remaining native method is Serialize which is of no concern for the coming work.
For the varargs functions that used the Type field to validate their parameters, now a hidden additional argument is passed which contains a byte array with the type info for the current call's arguments. Since this is static per call location it can be better prepared once when the code is being compiled instead of being put in a runtime created array for each invocation. Everything else uses the per-function instance of the same data.
The only thing that still needed the type field with a VMValue is the defaults array, so this uses a different struct type now to store its data.
This is mainly to allow retroactive addition to existing virtual functions without breaking existing content.
The MeansOfDeath fix for Actor.Die would not be possible without such handling.
This data is game critical and may only be altered by code that knows what is allowed and what not. It must never be altered by any user code ever.
However, since the SkyViewpoint actors need to set up some relations between themselves and the default sky portals the previously purely internal 'internal' flag has been exported as a new keyword.
Due to how the VM handles default parameters, these must always be identical to the parent to prevent undefined behavior.
So now, if such parameters are encountered, the compiler will either abort (for script version >= 3.3) or print a warning (for older versions.)
Any defaults being specified for older versions will be ignored, though, and the defaults of the parent function be copied to the override.
The order of processing is different here so when the property gets parsed there are no states to delete.
To fix this the property just flags the class and lets the ZScript state compiler deal with this as needed.
This is to ensure that the Class pointer can be set right on creation. ZDoom had always depended on handling this lazily which poses some problems for the VM.
So now there is a variadic Create<classtype> function taking care of that, but to ensure that it gets used, direct access to the new operator has been blocked.
This also neccessitated making DArgs a regular object because they get created before the type system is up. Since the few uses of DArgs are easily controllable this wasn't a big issue.
- did a bit of optimization on the bots' decision making whether to pick up a health item or not.
