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Add scripting API events in Visual Script

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This commit is contained in:
Wojtek Figat
2021-01-22 10:55:13 +01:00
parent 4042d466d3
commit cbbfb16628
11 changed files with 708 additions and 38 deletions
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69
Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cpp.cs
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@@ -1091,19 +1091,19 @@ namespace Flax.Build.Bindings
{
if (!useScripting)
continue;
CppIncludeFiles.Add("Engine/Scripting/ManagedCLR/MEvent.h");
var paramsCount = eventInfo.Type.GenericArgs.Count;
// C# event invoking wrapper (calls C# event from C++ delegate)
CppIncludeFiles.Add("Engine/Scripting/ManagedCLR/MEvent.h");
contents.Append(" ");
if (eventInfo.IsStatic)
contents.Append("static ");
contents.AppendFormat("void {0}_ManagedWrapper(", eventInfo.Name);
for (var i = 0; i < eventInfo.Type.GenericArgs.Count; i++)
for (var i = 0; i < paramsCount; i++)
{
if (i != 0)
contents.Append(", ");
contents.Append(eventInfo.Type.GenericArgs[i]);
contents.Append(" arg" + i);
contents.Append(eventInfo.Type.GenericArgs[i]).Append(" arg" + i);
}
contents.Append(')').AppendLine();
contents.Append(" {").AppendLine();
@@ -1112,11 +1112,11 @@ namespace Flax.Build.Bindings
contents.AppendFormat(" mmethod = {1}::GetStaticClass()->GetMethod(\"Internal_{0}_Invoke\", {2});", eventInfo.Name, classTypeNameNative, eventInfo.Type.GenericArgs.Count).AppendLine();
contents.Append(" CHECK(mmethod);").AppendLine();
contents.Append(" MonoObject* exception = nullptr;").AppendLine();
if (eventInfo.Type.GenericArgs.Count == 0)
if (paramsCount == 0)
contents.AppendLine(" void** params = nullptr;");
else
contents.AppendLine($" void* params[{eventInfo.Type.GenericArgs.Count}];");
for (var i = 0; i < eventInfo.Type.GenericArgs.Count; i++)
contents.AppendLine($" void* params[{paramsCount}];");
for (var i = 0; i < paramsCount; i++)
{
var paramType = eventInfo.Type.GenericArgs[i];
var paramName = "arg" + i;
@@ -1139,7 +1139,7 @@ namespace Flax.Build.Bindings
contents.Append("bool bind)").AppendLine();
contents.Append(" {").AppendLine();
contents.Append(" Function<void(");
for (var i = 0; i < eventInfo.Type.GenericArgs.Count; i++)
for (var i = 0; i < paramsCount; i++)
{
if (i != 0)
contents.Append(", ");
@@ -1156,6 +1156,56 @@ namespace Flax.Build.Bindings
contents.Append(" else").AppendLine();
contents.AppendFormat(" {0}{1}.Unbind(f);", bindPrefix, eventInfo.Name).AppendLine();
contents.Append(" }").AppendLine().AppendLine();
// Generic scripting event invoking wrapper (calls scripting code from C++ delegate)
CppIncludeFiles.Add("Engine/Scripting/Events.h");
contents.Append(" ");
if (eventInfo.IsStatic)
contents.Append("static ");
contents.AppendFormat("void {0}_Wrapper(", eventInfo.Name);
for (var i = 0; i < paramsCount; i++)
{
if (i != 0)
contents.Append(", ");
contents.Append(eventInfo.Type.GenericArgs[i]).Append(" arg" + i);
}
contents.Append(')').AppendLine();
contents.Append(" {").AppendLine();
if (paramsCount == 0)
contents.AppendLine(" Variant* params = nullptr;");
else
contents.AppendLine($" Variant params[{eventInfo.Type.GenericArgs.Count}];");
for (var i = 0; i < paramsCount; i++)
{
var paramType = eventInfo.Type.GenericArgs[i];
var paramName = "arg" + i;
var paramValue = GenerateCppWrapperNativeToVariant(buildData, paramType, classInfo, paramName);
contents.Append($" params[{i}] = {paramValue};").AppendLine();
}
contents.AppendLine($" ScriptingEvents::Event({(eventInfo.IsStatic ? "nullptr" : "(ScriptingObject*)this")}, Span<Variant>(params, {paramsCount}), {classTypeNameNative}::TypeInitializer, StringView(TEXT(\"{eventInfo.Name}\"), {eventInfo.Name.Length}));");
contents.Append(" }").AppendLine().AppendLine();
// Scripting event wrapper binding method (binds/unbinds generic wrapper to C++ delegate)
contents.AppendFormat(" static void {0}_Bind(", eventInfo.Name);
contents.AppendFormat("{0}* obj, void* instance, bool bind)", classTypeNameNative).AppendLine();
contents.Append(" {").AppendLine();
contents.Append(" Function<void(");
for (var i = 0; i < paramsCount; i++)
{
if (i != 0)
contents.Append(", ");
contents.Append(eventInfo.Type.GenericArgs[i]);
}
contents.Append(")> f;").AppendLine();
if (eventInfo.IsStatic)
contents.AppendFormat(" f.Bind<{0}_Wrapper>();", eventInfo.Name).AppendLine();
else
contents.AppendFormat(" f.Bind<{1}Internal, &{1}Internal::{0}_Wrapper>(({1}Internal*)instance);", eventInfo.Name, classTypeNameInternal).AppendLine();
contents.Append(" if (bind)").AppendLine();
contents.AppendFormat(" {0}{1}.Bind(f);", bindPrefix, eventInfo.Name).AppendLine();
contents.Append(" else").AppendLine();
contents.AppendFormat(" {0}{1}.Unbind(f);", bindPrefix, eventInfo.Name).AppendLine();
contents.Append(" }").AppendLine().AppendLine();
}
// Fields
@@ -1299,6 +1349,9 @@ namespace Flax.Build.Bindings
foreach (var eventInfo in classInfo.Events)
{
contents.AppendLine($" ADD_INTERNAL_CALL(\"{classTypeNameManagedInternalCall}::Internal_{eventInfo.Name}_Bind\", &{eventInfo.Name}_ManagedBind);");
// Register scripting event binder
contents.AppendLine($" ScriptingEvents::EventsTable[Pair<ScriptingTypeHandle, StringView>({classTypeNameNative}::TypeInitializer, StringView(TEXT(\"{eventInfo.Name}\"), {eventInfo.Name.Length}))] = (void(*)(ScriptingObject*, void*, bool)){classTypeNameInternal}Internal::{eventInfo.Name}_Bind;");
}
foreach (var fieldInfo in classInfo.Fields)
{