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author Robert Clarke <clarke.john.robert@gmail.com>2023-02-12 09:44:39 +0100
committer Robert Clarke <clarke.john.robert@gmail.com>2023-02-12 09:44:39 +0100
commitd45323cadee9044d8536f7eb9827a43b36e4bdff (patch)
tree6e2a8aa1d7d2c7e69df8eb6d5a18524b8e8ffa00
parente7ee0ddbefa8f6696aa7b5a001b3a04eb046ba0d (diff)
Everything necessary to register a C++ class with internal state for access within Godot
-rw-r--r--extension/src/Simulation.hpp52
-rw-r--r--extension/src/register_types.cpp51
2 files changed, 82 insertions, 21 deletions
diff --git a/extension/src/Simulation.hpp b/extension/src/Simulation.hpp
new file mode 100644
index 0000000..6ade846
--- /dev/null
+++ b/extension/src/Simulation.hpp
@@ -0,0 +1,52 @@
+#pragma once
+
+#include <godot_cpp/classes/object.hpp>
+#include <godot_cpp/core/class_db.hpp>
+#include <godot_cpp/variant/utility_functions.hpp>
+#include <vector>
+
+namespace OpenVic2 {
+ class Simulation : public godot::Object {
+ std::vector<size_t> exampleProvinces;
+
+ //BEGIN BOILERPLATE
+ GDCLASS(Simulation, godot::Object);
+ static Simulation* _simulation;
+
+ protected:
+ static void _bind_methods() {
+ godot::ClassDB::bind_method(godot::D_METHOD("conductSimulationStep"), &Simulation::conductSimulationStep);
+ godot::ClassDB::bind_method(godot::D_METHOD("queryProvinceSize"), &Simulation::queryProvinceSize);
+ }
+
+ public:
+ inline static Simulation* get_singleton() { return _simulation; }
+
+ inline Simulation() {
+ ERR_FAIL_COND(_simulation != nullptr);
+ _simulation = this;
+
+ exampleProvinces.resize(10, 1);
+ }
+ inline ~Simulation() {
+ ERR_FAIL_COND(_simulation != this);
+ _simulation = nullptr;
+ }
+ //END BOILERPLATE
+
+ inline void conductSimulationStep() {
+ for (size_t x = 0; x < exampleProvinces.size(); x++) {
+ exampleProvinces[x] += (x + 1);
+ }
+ }
+
+ inline size_t queryProvinceSize(size_t provinceID) {
+ if (provinceID >= exampleProvinces.size()) {
+ return 0;
+ }
+ return exampleProvinces[provinceID];
+ }
+ };
+
+ Simulation* Simulation::_simulation = nullptr;
+} \ No newline at end of file
diff --git a/extension/src/register_types.cpp b/extension/src/register_types.cpp
index 775e6c3..4b049ce 100644
--- a/extension/src/register_types.cpp
+++ b/extension/src/register_types.cpp
@@ -6,46 +6,55 @@
#include <godot_cpp/classes/engine.hpp>
#include "TestSingleton.hpp"
+#include "Simulation.hpp"
using namespace godot;
using namespace OpenVic2;
-static TestSingleton *_test_singleton;
+static TestSingleton* _test_singleton;
+static Simulation* _simulation;
void initialize_openvic2_types(ModuleInitializationLevel p_level)
{
- if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
- return;
- }
+ if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
+ return;
+ }
- ClassDB::register_class<TestSingleton>();
+ ClassDB::register_class<TestSingleton>();
+ _test_singleton = memnew(TestSingleton);
+ Engine::get_singleton()->register_singleton("TestSingleton", TestSingleton::get_singleton());
+
+ ClassDB::register_class<Simulation>();
+ _simulation = memnew(Simulation);
+ Engine::get_singleton()->register_singleton("Simulation", Simulation::get_singleton());
- _test_singleton = memnew(TestSingleton);
- Engine::get_singleton()->register_singleton("TestSingleton", TestSingleton::get_singleton());
}
void uninitialize_openvic2_types(ModuleInitializationLevel p_level) {
- if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
- return;
- }
+ if (p_level != MODULE_INITIALIZATION_LEVEL_SCENE) {
+ return;
+ }
+
+ Engine::get_singleton()->unregister_singleton("TestSingleton");
+ memdelete(_test_singleton);
- Engine::get_singleton()->unregister_singleton("TestSingleton");
- memdelete(_test_singleton);
+ Engine::get_singleton()->unregister_singleton("Simulation");
+ memdelete(_test_singleton);
}
extern "C"
{
- // Initialization.
+ // Initialization.
- GDExtensionBool GDE_EXPORT openvic2_library_init(const GDExtensionInterface *p_interface, const GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization)
- {
- GDExtensionBinding::InitObject init_obj(p_interface, p_library, r_initialization);
+ GDExtensionBool GDE_EXPORT openvic2_library_init(const GDExtensionInterface *p_interface, const GDExtensionClassLibraryPtr p_library, GDExtensionInitialization *r_initialization)
+ {
+ GDExtensionBinding::InitObject init_obj(p_interface, p_library, r_initialization);
- init_obj.register_initializer(initialize_openvic2_types);
- init_obj.register_terminator(uninitialize_openvic2_types);
- init_obj.set_minimum_library_initialization_level(MODULE_INITIALIZATION_LEVEL_SCENE);
+ init_obj.register_initializer(initialize_openvic2_types);
+ init_obj.register_terminator(uninitialize_openvic2_types);
+ init_obj.set_minimum_library_initialization_level(MODULE_INITIALIZATION_LEVEL_SCENE);
- return init_obj.init();
- }
+ return init_obj.init();
+ }
} \ No newline at end of file