got native cpp extension to work

.gitignore

@@ -42,3 +42,4 @@ mono_crash.*.json
 
 # Fork
 Source/.sconsign.dblite
+.vs

.vscode/settings.json

@@ -0,0 +1,7 @@
+{
+	"files.associations": {
+		"*.rmd": "markdown",
+		"xtr1common": "cpp"
+	},
+	"godot_tools.editor_path": "c:\\Projects\\SymbolEngine\\Engine\\gd\\bin\\godot.windows.opt.tools.64.exe"
+}

Editor/gdexample.gdextension

@@ -0,0 +1,12 @@
+[configuration]
+
+entry_symbol = "example_library_init"
+
+[libraries]
+
+linux.64.debug = "bin/libgdexample.linux.debug.64.so"
+linux.64.release = "bin/libgdexample.linux.release.64.so"
+windows.64.debug = "bin/libgdexample.windows.debug.64.dll"
+windows.64.release = "bin/libgdexample.windows.release.64.dll"
+macos.debug = "bin/libgdexample.debug.framework"
+macos.release = "bin/libgdexample.release.framework"

Editor/main.tscn

@@ -1,3 +1,14 @@
-[gd_scene format=3 uid="uid://bqqewt05ne1ad"]
+[gd_scene load_steps=2 format=3 uid="uid://bqqewt05ne1ad"]
+
+[ext_resource type="Texture2D" uid="uid://cnv7sgufjc3fk" path="res://icon.png" id="1_tqon5"]
 
 [node name="main" type="Node"]
+
+[node name="GDExample" type="GDExample" parent="."]
+position = Vector2(7.83596, 18.1283)
+texture = ExtResource( "1_tqon5" )
+
+[node name="Sprite2D" type="Sprite2D" parent="."]
+modulate = Color(1, 0.309804, 0.580392, 1)
+position = Vector2(214, 2)
+texture = ExtResource( "1_tqon5" )

Editor/project.godot

@@ -11,5 +11,10 @@ config_version=5
 [application]
 
 config/name="SymbolEngine"
+run/main_scene="res://main.tscn"
 config/icon="res://icon.png"
 config/features=PackedStringArray("4.0", "Vulkan Clustered")
+
+[native_extensions]
+
+paths=["res://../Source/gdexample.gdextension"]

Source/SConstruct

@@ -1,48 +1,11 @@
-#!python
+#!/usr/bin/env python
 import os
-import glob
+import sys
 
-opts = Variables([], ARGUMENTS)
+RootDir = os.path.abspath("../");
+EditorDir = RootDir + "/Editor"
 
-# Gets the standard flags CC, CCX, etc.
-env = DefaultEnvironment()
-
-ProjPath = os.path.abspath("../");
-print("Project Path: " + ProjPath);
-
-# Define our options
-opts.Add(EnumVariable('target', "Compilation target", 'debug', ['d', 'debug', 'r', 'release']))
-opts.Add(EnumVariable('platform', "Compilation platform", '', ['', 'windows', 'x11', 'linux', 'osx']))
-opts.Add(EnumVariable('p', "Compilation target, alias for 'platform'", '', ['', 'windows', 'x11', 'linux', 'osx']))
-opts.Add(BoolVariable('use_llvm', "Use the LLVM / Clang compiler", 'no'))
-opts.Add(PathVariable('target_path', 'The path where the lib is installed.', ProjPath + '/Engine/gdnative_cpp/bin/'))
-opts.Add(PathVariable('target_name', 'The library name.', 'libgdexample', PathVariable.PathAccept))
-
-# Local dependency paths, adapt them to your setup
-godot_headers_path = ProjPath + "/Engine/gdnative_cpp/godot-headers/"
-cpp_bindings_path = ProjPath + "/Engine/gdnative_cpp/"
-cpp_library = "libgodot-cpp"
-
-GDNative_Src = ProjPath + '/Engine/gdnative_cpp/src/'
-Src = ProjPath + "/Source/"
-
-# only support 64 at this time..
-bits = 64
-
-# Updates the environment with the option variables.
-opts.Update(env)
-
-# Process some arguments
-if env['use_llvm']:
-    env['CC'] = 'clang'
-    env['CXX'] = 'clang++'
-
-if env['p'] != '':
-    env['platform'] = env['p']
-
-if env['platform'] == '':
-    print("No valid target platform selected.")
-    quit();
+env = SConscript(RootDir + "/Engine/gdnative_cpp/SConstruct")
 
 # For the reference:
 # - CCFLAGS are compilation flags shared between C and C++
@@ -52,77 +15,24 @@ if env['platform'] == '':
 # - CPPDEFINES are for pre-processor defines
 # - LINKFLAGS are for linking flags
 
-# Check our platform specifics
-if env['platform'] == "osx":
-    env['target_path'] += 'osx/'
-    cpp_library += '.osx'
-    env.Append(CCFLAGS=['-arch', 'x86_64'])
-    env.Append(CXXFLAGS=['-std=c++17'])
-    env.Append(LINKFLAGS=['-arch', 'x86_64'])
-    if env['target'] in ('debug', 'd'):
-        env.Append(CCFLAGS=['-g', '-O2'])
-    else:
-        env.Append(CCFLAGS=['-g', '-O3'])
-
-elif env['platform'] in ('x11', 'linux'):
-    env['target_path'] += 'x11/'
-    cpp_library += '.linux'
-    env.Append(CCFLAGS=['-fPIC'])
-    env.Append(CXXFLAGS=['-std=c++17'])
-    if env['target'] in ('debug', 'd'):
-        env.Append(CCFLAGS=['-g3', '-Og'])
-    else:
-        env.Append(CCFLAGS=['-g', '-O3'])
-
-elif env['platform'] == "windows":
-    env['target_path'] += 'win64/'
-    cpp_library += '.windows'
-    # This makes sure to keep the session environment variables on windows,
-    # that way you can run scons in a vs 2017 prompt and it will find all the required tools
-    env.Append(ENV=os.environ)
-
-    env.Append(CPPDEFINES=['WIN32', '_WIN32', '_WINDOWS', '_CRT_SECURE_NO_WARNINGS'])
-    env.Append(CCFLAGS=['-W3', '-GR'])
-    env.Append(CXXFLAGS='/std:c++17')
-    if env['target'] in ('debug', 'd'):
-        env.Append(CPPDEFINES=['_DEBUG'])
-        env.Append(CCFLAGS=['-EHsc', '-MDd', '-ZI'])
-        env.Append(LINKFLAGS=['-DEBUG'])
-    else:
-        env.Append(CPPDEFINES=['NDEBUG'])
-        env.Append(CCFLAGS=['-O2', '-EHsc', '-MD'])
-
-if env['target'] in ('debug', 'd'):
-    cpp_library += '.debug'
-else:
-    cpp_library += '.release'
-
-cpp_library += '.' + str(bits)
-
-# make sure our binding library is properly includes
-env.Append(CPPPATH=[
-    '.', 
-    godot_headers_path, 
-    cpp_bindings_path + 'include/', 
-    cpp_bindings_path + 'include/core/', 
-    cpp_bindings_path + 'include/gen/'])
-
-env.Append(LIBPATH=[cpp_bindings_path + "/bin"])
-
-env.Append(LIBS=[cpp_library])
-
 # tweak this if you want to use different folders, or more folders, to store your source code in.
-env.Append(CPPPATH=[GDNative_Src])
-env.Append(CPPPATH=[Src])
+env.Append(CPPPATH=["."])
+sources = Glob("./*.cpp")
 
-sources = Glob(GDNative_Src + '/*.cpp') + Glob(Src + '/*cpp')
-
-for thing in sources :
-    print(thing)
-
-library = env.SharedLibrary(target=env['target_path'] + env['target_name'] , source=sources)
+if env["platform"] == "osx":
+    library = env.SharedLibrary(
+        EditorDir + "/bin/libgdexample.{}.{}.framework/libgdexample.{}.{}".format(
+            env["platform"], env["target"], env["platform"], env["target"]
+        ),
+        source=sources,
+    )
+else:
+    library = env.SharedLibrary(
+        EditorDir + "/bin/libgdexample.{}.{}.{}{}".format(
+            env["platform"], env["target"], env["arch_suffix"], env["SHLIBSUFFIX"]
+        ),
+        source=sources,
+    )
 
 Default(library)
 
-# Generates help for the -h scons option.
-Help(opts.GenerateHelpText(env))

Source/gdexample.cpp

@@ -3,18 +3,18 @@
 
 namespace godot {
 
+
 #pragma region GodotRT
-void GDExample::_register_methods()
+void GDExample::_bind_methods()
 {
-	register_method("_process", &GDExample::_process);
 }
 
-void GDExample::_init()
-{
-	time_passed = 0.f;
-}
+// void GDExample::_init()
+// {
+// 	time_passed = 0.f;
+// }
 
-void GDExample::_process(float delta)
+void GDExample::_process(double delta)
 {
 	time_passed += delta;
 
@@ -29,9 +29,12 @@ void GDExample::_process(float delta)
 #pragma endregion GodotRT
 
 GDExample::GDExample() 
-{}
+{
+	time_passed = 0.f;
+}
 
 GDExample::~GDExample()
 {}
 
-}
+
+} // godot

Source/gdexample.h

@@ -1,13 +1,13 @@
 #pragma once
 
-#include <godot.hpp>
-#include <Sprite.hpp>
+#include <godot_cpp/godot.hpp>
+#include <godot_cpp/classes/sprite2d.hpp>
 
 namespace godot {
 
-class GDExample : public Sprite
+class GDExample : public Sprite2D
 {
-	GODOT_CLASS(GDExample, Sprite)
+	GDCLASS(GDExample, Sprite2D)
 
 public:
 
@@ -16,10 +16,10 @@ public:
 #pragma endregion Data
 
 #pragma region GodotRT
-	static	void	_register_methods();
+	static	void _bind_methods();
 
-	void	_init();
-	void	_process(float delta);
+	 //void	_init() override;
+	void	_process(double delta) override;
 #pragma endregion GodotRT
 
 	GDExample();

Source/gdlibrary.h

@@ -1,26 +0,0 @@
-#pragma once
-
-#include "gdexample.h"
-
-#define gd_export(Type_) \
-extern "C" Type_ GDN_Export
-
-gd_export(void)
-godot_gdnative_init(godot_gdnative_init_options* o) 
-{
-	godot::Godot::gdnative_init(o);
-}
-
-gd_export(void)
-godot_gdnative_terminate(godot_gdnative_terminate_options* o)
-{
-	godot:Godot::gdnative_terminate(o);
-}
-
-gd_export(void)
-godot_nativescript_init(void* handle)
-{
-	godot::Godot::nativescript_init(handle);
-
-	godot::register_class<godot::GDExample>();
-}

Source/register_types.cpp

@@ -0,0 +1,43 @@
+#include "register_types.h"
+
+#include "gdexample.h"
+
+
+namespace godot {
+
+void register_types(ModuleInitializationLevel p_level)
+{
+	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE)
+		return;
+
+	ClassDB::register_class<GDExample>();
+}
+
+void unregister_types(ModuleInitializationLevel p_level)
+{
+	if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE)
+		return;
+
+	// Nothing for now...
+}
+
+extern "C" 
+{
+	GDNativeBool GDN_EXPORT 
+	example_library_init(
+		GDNativeInterface const* 				p_interface, 
+		GDNativeExtensionClassLibraryPtr const 	p_library, 
+		GDNativeInitialization* 				r_initialization) 
+	{
+		godot::GDExtensionBinding::InitObject 
+		init_obj(p_interface, p_library, r_initialization);
+		init_obj.register_initializer(register_types);
+		init_obj.register_terminator(unregister_types);
+		init_obj.set_minimum_library_initialization_level(MODULE_INITIALIZATION_LEVEL_SCENE);
+
+		return init_obj.init();
+	}
+}
+
+} // godot
+

Source/register_types.h

@@ -0,0 +1,4 @@
+#pragma once
+
+void register_types();
+void unregister_types();

editor.bat

@@ -1,5 +1,5 @@
 cd Engine\gd\bin\
 
-start godot.windows.tools.64.exe
+start godot.windows.opt.tools.64.exe
 
 exit