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Add support for LuaToken to the LuaCall unreal pipeline

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This commit is contained in:
jyelon
2025-02-05 16:08:34 -05:00
parent 07dbec4bef
commit 4023d19247
4 changed files with 59 additions and 13 deletions
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21
Source/Integration/LuaCall.cpp
View File

@@ -30,6 +30,13 @@ void UlxLuaCallLibrary::LuaCallAddStringParameter(UObject *context, const FStrin
sb.write_string(pstring);
}
void UlxLuaCallLibrary::LuaCallAddNameParameter(UObject *context, const FName &pname) {
AIntegrationGameModeBase *mode = AIntegrationGameModeBase::GetFromContext(context);
FlxStreamBuffer &sb = mode->LuaCallGetBuffer();
CheckNotEmpty(sb);
sb.write_simple_dynamic_tag(SimpleDynamicTag::STRING);
sb.write_fname(pname);
}
void UlxLuaCallLibrary::LuaCallAddFloatParameter(UObject *context, double pfloat) {
AIntegrationGameModeBase *mode = AIntegrationGameModeBase::GetFromContext(context);
@@ -47,7 +54,7 @@ void UlxLuaCallLibrary::LuaCallAddVectorParameter(UObject *context, const FVecto
sb.write_simple_dynamic_tag(SimpleDynamicTag::VECTOR);
sb.write_fvector(pvector);
}
void UlxLuaCallLibrary::LuaCallAddBooleanParameter(UObject *context, bool pbool) {
AIntegrationGameModeBase *mode = AIntegrationGameModeBase::GetFromContext(context);
@@ -98,6 +105,7 @@ ELpxSimpleDynamicTag UlxLuaCallLibrary::LuaCallNextResultType(UObject *context)
sb.unread_to(total_reads);
switch (tag) {
case SimpleDynamicTag::STRING: return ELpxSimpleDynamicTag::String;
case SimpleDynamicTag::TOKEN: return ELpxSimpleDynamicTag::Name;
case SimpleDynamicTag::NUMBER: return ELpxSimpleDynamicTag::Float;
case SimpleDynamicTag::VECTOR: return ELpxSimpleDynamicTag::Vector;
case SimpleDynamicTag::BOOLEAN: return ELpxSimpleDynamicTag::Boolean;
@@ -110,8 +118,15 @@ FString UlxLuaCallLibrary::LuaCallGetStringResult(UObject *context) {
FlxStreamBuffer &sb = mode->LuaCallGetResult();
SimpleDynamicTag tag = sb.read_simple_dynamic_tag();
if (tag != SimpleDynamicTag::STRING) FatalBlueprintError(TEXT("expected lua to return a string"));
std::string_view s = sb.read_string_view();
return FString(s.size(), (const UTF8CHAR *)s.data());
return sb.read_fstring();
}
FName UlxLuaCallLibrary::LuaCallGetNameResult(UObject *context) {
AIntegrationGameModeBase *mode = AIntegrationGameModeBase::GetFromContext(context);
FlxStreamBuffer &sb = mode->LuaCallGetResult();
SimpleDynamicTag tag = sb.read_simple_dynamic_tag();
if (tag != SimpleDynamicTag::TOKEN) FatalBlueprintError(TEXT("expected lua to return a name"));
return sb.read_fname();
}
double UlxLuaCallLibrary::LuaCallGetFloatResult(UObject *context) {

9
Source/Integration/LuaCall.h
View File

@@ -7,6 +7,7 @@ UENUM(BlueprintType)
enum class ELpxSimpleDynamicTag : uint8 {
None,
String,
Name,
Float,
Boolean,
Vector
@@ -31,7 +32,10 @@ public:
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static void LuaCallAddStringParameter(UObject *context, const FString &pstring);
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static void LuaCallAddNameParameter(UObject *context, const FName &pname);
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static void LuaCallAddFloatParameter(UObject *context, double pfloat);
@@ -56,6 +60,9 @@ public:
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static FString LuaCallGetStringResult(UObject *context);
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static FName LuaCallGetNameResult(UObject *context);
UFUNCTION(BlueprintCallable, meta = (WorldContext = "context"), Category = "Luprex|Call Lua Function")
static double LuaCallGetFloatResult(UObject *context);

15
Source/Integration/StringDecoder.h
View File

@@ -37,6 +37,11 @@ public:
write_string(std::string_view(utf8str.Get(), utf8str.Length()));
}
void write_fname(const FName &name) {
FTCHARToUTF8 utf8str(name.ToString());
write_string(std::string_view(utf8str.Get(), utf8str.Length()));
}
void write_string(const char *s) {
write_string(std::string_view(s));
}
@@ -53,5 +58,15 @@ public:
double z = read_double();
return FVector(x, y, z);
}
FString read_fstring() {
std::string_view s = read_string_view();
return FString(s.size(), (const UTF8CHAR *)s.data());
}
FName read_fname() {
std::string_view s = read_string_view();
return FName(s.size(), (const UTF8CHAR *)s.data(), FNAME_Add);
}
};