This entered the code path which warned about ambiguous use of variables in action functions and as a result ran afoul of subsequent error checks.
Since ZScript has no global scope resolution operator, this needs to ignore all non-static class symbols and try to look up any of these as global identifiers.
src/scripting/decorate/thingdef_parse.cpp:80:11: error: no viable conversion from 'const FName' to 'FString'
src/scripting/zscript/zcc_compile.cpp:1359:26: error: use of undeclared identifier 'Name_globalfreeze'; did you mean 'NAME_globalfreeze'?
# Conflicts:
# src/scripting/zscript/zcc_compile.cpp
If we ever want to refactor the global level data these must not reference the 'level' variable.
The main parts of the map loader cannot use this information, because it can only be created after running the node builder, so it got its own set of index functions instead.
Visual C++ will never statically initialize a class instance where a member field has a default value set, so the DEFINE_ACTION_FUNCTION variants without a direct native call need to be handled differently. The easiest way to do this is to leave out the nullptr default and omit the value in the initializer list. For trailing fields this will always get them nulled.
Unlike the other classes, the places where variables from this class were accessed were quite scattered so there isn't much scriptified code. Instead, most of these places are now using the script variable access methods.
This was the last remaining subclass of AActor, meaning that class Actor can now be opened for user-side extensions.
This was the only code using the ViewBob member variable.
This also moves the range check for this variable to its application, because a badly behaved mod can just as easily change it at run time instead of just setting an absurdly large value in the class definition.
This should be less of a drag on the playsim than having each light a separate actor. A quick check with ZDCMP2 showed that the light processing time was reduced to 1/3rd from 0.5 ms to 0.17 ms per tic.
It's also one native actor class less.
Add 'useowncoloradd_{top,mid,bottom}' sidedef properties to the UDMF
spec
Only use side's additive colors if 'useowncoloradd_(top|mid|bottom)' is
set.
Rename UseOwnColors flag to UseOwnSpecialColors
Add UseOwnAdditiveColor flag to side_t::part
Add EnableAdditiveColor to side_t
Add Side.EnableAdditiveColor to ZScript API
Sector.SetAdditiveColor actually called Sector.SetSpecialColor
Add use boolean property, used to determine whether or not to override the sector's additive wall colour with the side's additive colour.
The new specification is more flexible, and allows assigning additive
colors to individual parts of a sector (walls, sprites, flats) and even
individual parts of a side (top, middle, bottom)
Add AdditiveColors arrays to sector_t and side_t::part
Initialize AdditiveColors arrays to 0
Export AdditiveColors to ZScript
Save AdditiveColors in saved game files
Use colors from AdditiveColors arrays when setting the additive color
for the render state
Add code to parse the new UDMF additive color properties
Remove additive color slot from sector color/part enum
Add SetAdditiveColor to sector_t and side_t
Add GetAdditiveColor to side_t
Export new methods and additive color arrays to ZScript
NOFRICTION disables all friction effects on the thing it's set on
(including the speed cap from water/crouching), and NOFRICTIONBOUNCE
disables the "bounce off walls on an icy floor" effect on the thing
it's set on.
Making callstack resolving operational will require a little bit more effort
src/scripting/vm/jit_runtime.cpp:900:31: error: use of undeclared identifier 'frames'
src/scripting/vm/jit_runtime.cpp:903:23: error: use of undeclared identifier 'cnt'
For ad-hoc Dehacked state functions no ArgFlags are created, in this case they can just be assumed to not be relevant here, because none of these function produces reference arguments.
- disallow bool as a return value for direct native calls because it only sets the lowest 8 bits of the return register.
- changed return type for several functions from bool to int where the return type was the only thing blocking use as direct native call.
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_Distance2DSquared(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x6ab): undefined reference to `AActor::PosRelative(AActor const*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_Distance3DSquared(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x75f): undefined reference to `AActor::PosRelative(AActor const*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_Vec3To(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x850): undefined reference to `AActor::PosRelative(AActor const*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_Vec2To(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x930): undefined reference to `AActor::PosRelative(AActor const*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_DistanceBySpeed(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0xa00): undefined reference to `AActor::PosRelative(AActor const*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o:vmthunks_actors.cpp:(.text+0xad3): more undefined references to `AActor::PosRelative(AActor const*) const' follow
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_PosRelative(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x1200): undefined reference to `AActor::PosRelative(sector_t*) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_ClearInterpolation(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x127d): undefined reference to `AActor::ClearInterpolation()'
vmthunks_actors.cpp:(.text+0x1298): undefined reference to `AActor::ClearInterpolation()'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_GetBobOffset(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x135a): undefined reference to `AActor::GetBobOffset(double) const'
CMakeFiles/zdoom.dir/scripting/vmthunks_actors.cpp.o: In function `AF_AActor_Distance2D(VMValue*, int, VMReturn*, int)':
vmthunks_actors.cpp:(.text+0x222b): undefined reference to `AActor::PosRelative(AActor const*) const'
* use I_Error instead of I_FatalError to abort. I_FatalError is only for things that are not recoverable and should not be handled outside of error cleanup and rethrowing.
* only catch CRecoverableError in JitCompile. Everything else should fall through to the outermost catch block.
* Do not I_FatalError out after handling the exception locally. Just print an error and return null, indicating failure.
* The functions had no prototype and caused crashes.
* even after creating a prototype it didn't work because CreateAnonymousFunction was set up incorrectly for the case where a known return type was given.
- offloaded key list generation for alternative HUD to non-UI parts.
This change also revealed a problem with handling empty sprites in the key list so this got fixed, too.
- changed PARAM_STRING to use the passed string by reference instead of by value. The 3 instances where passing by value was needed now use PARAM_STRING_VAL.
On Windows none of this is needed, because we can generate a proper unwind frame for the JITed functions, but even on Linux, it would require manual additions to each single piece of native code that ever gets called from inside a JIT compiled function.
This is an utterly prohibitive proposition because it makes direct native calls a virtual impossibility
So, in order to get the thrown error properly presented both I_Error and ThrowAbortException will now forward to I_FatalError if it is called from inside a JIT context.
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.
This stuff is now kept locally in the bot code so that it doesn't infest the rest of the engine.
And please don't read the new botsupp.txt file as some new means to configure bots! This was merely done to get this data out of the way.
The bots are still broken beyond repair and virtually unusable, even if proper data is provided for all weapons.
Since the only thing it gets used for is swapping out PlayerPawns it can safely skip all global variables that never point to a live player, which allowed to remove quite a bit of code here that stood in the way of scriptifying more content
Null pointers must be allowed and non-object pointers which are not null must be explicitly checked for because the code could crash on them when performing a static_cast on an incorrect type.
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.
Currently used for loading parameters into registers.
For checking parameters of native functions some more work is needed to get the info to the function. Currently it doesn't receive the function descriptor.
src/scripting/vm/jit_call.cpp:164:38: warning: offset of on non-standard-layout type 'VMScriptFunction' [-Winvalid-offsetof]
src/scripting/vm/jit_load.cpp:87:50: warning: offset of on non-standard-layout type 'DObject' [-Winvalid-offsetof]
src/scripting/vm/jit_load.cpp:96:50: warning: offset of on non-standard-layout type 'DObject' [-Winvalid-offsetof]
src/scripting/vm/jit_load.cpp:257:53: warning: offset of on non-standard-layout type 'DObject' [-Winvalid-offsetof]
The amount of support code for this minor optimization was quite large and this stood in the way of streamlining the VM's calling convention, so it was preferable to remove it before moving on.
With a proper count value available this can be done properly. The only relevant targets are the jumps immediately succeeding the IJMP instructions, nothing else.
This removes the last non-vararg cases where a native VM function checks 'numparam'. As of this commit all function calls will pass the complete list of arguments.
This isn't used for the 3 action function calls because it requires an array allocation which would be a bit too costly for something as frequently called as action functions.
They will need a different approach.
There were some issues here:
* a check for mismatching count is too strict because it is legal to omit return values
* it failed to detect returning multiple values in a single expression.
The instruction one free instruction byte so it's now using that to extend its argument's register range to 65535.
For param this is needed because it passes strings by reference and creating an implicit temporary copy for string constants does not work here.
