chore: remove unused dependencies

.gitignore

@@ -1,19 +1,14 @@
-bin/
-lib/
-CMakeFiles/
-cmake_install.cmake
-CMakeCache.txt
-Makefile
+/bin/
+/lib/
+/build/
 
 # Qt
-.lupdate/
-*.pro.user*
-CMakeLists.txt.user*
-*_autogen/
+/*.pro.user*
+/CMakeLists.txt.user*
 
 # Clangd
 /compile_commands.json
 /.cache
 
 # Gdb
-.gdb_history
+/.gdb_history

CMakeLists.txt

@@ -1,11 +1,11 @@
-cmake_minimum_required(VERSION 3.5.0)
+cmake_minimum_required(VERSION 3.31..)
 set(CMAKE_CXX_STANDARD 17)
 project(openblocks VERSION 0.1.0)
 set(OpenGL_GL_PREFERENCE "GLVND")
 
 set( CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin )
 set( CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
-set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/lib )
+set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/lib )
 
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 

assets/shaders/phong.fs

@@ -53,6 +53,7 @@ uniform int numPointLights;
 uniform DirLight sunLight;
 uniform Material material;
 uniform sampler2DArray studs;
+uniform float transparency;
 
 // Functions
 
@@ -72,7 +73,7 @@ void main() {
     }
     
     vec4 studPx = texture(studs, vec3(vTexCoords, vSurfaceZ));
-    FragColor = vec4(mix(result, vec3(studPx), studPx.w), 1);
+    FragColor = vec4(mix(result, vec3(studPx), studPx.w), 1) * (1-transparency);
 }
 
 vec3 calculateDirectionalLight(DirLight light) {

client/CMakeLists.txt

@@ -1,4 +1,7 @@
+find_package(SDL2 REQUIRED)
+include_directories(${SDL2_INCLUDE_DIRS})
+
 find_package(glfw3 REQUIRED)
 
 add_executable(client "src/main.cpp")
-target_link_libraries(client PRIVATE openblocks glfw)
+target_link_libraries(client PRIVATE ${SDL2_LIBRARIES} openblocks glfw)

core/CMakeLists.txt

@@ -1,24 +1,15 @@
 find_package(OpenGL REQUIRED COMPONENTS OpenGL)
 
-find_package(SDL2 REQUIRED)
-include_directories(${SDL2_INCLUDE_DIRS})
-
 find_package(GLEW REQUIRED)
 include_directories(${GLEW_INCLUDE_DIRS})
 
-find_package(GLUT REQUIRED)
-include_directories(${GLUT_INCLUDE_DIRS})
-
 find_package(OpenGL)
 find_package(glm CONFIG REQUIRED)
-# find_package(assimp REQUIRED)
 find_package(ReactPhysics3D REQUIRED)
 find_package(pugixml REQUIRED)
 
-file(MAKE_DIRECTORY bin)
-
 file(GLOB_RECURSE SOURCES "src/*.cpp" "src/*.h")
 add_library(openblocks ${SOURCES})
 set_target_properties(openblocks PROPERTIES OUTPUT_NAME "openblocks")
-target_link_libraries(openblocks ${SDL2_LIBRARIES} ${GLEW_LIBRARIES} ${GLUT_LIBRARIES} OpenGL::GL OpenGL::GLU ReactPhysics3D::ReactPhysics3D pugixml::pugixml)
+target_link_libraries(openblocks ${GLEW_LIBRARIES} OpenGL::GL ReactPhysics3D::ReactPhysics3D pugixml::pugixml)
 target_include_directories(openblocks PUBLIC "src" "../include")

core/src/datatypes/base.cpp

@@ -4,7 +4,7 @@
 #define IMPL_WRAPPER_CLASS(CLASS_NAME, WRAPPED_TYPE, TYPE_NAME) Data::CLASS_NAME::CLASS_NAME(WRAPPED_TYPE in) : value(in) {} \
 Data::CLASS_NAME::~CLASS_NAME() = default; \
 Data::CLASS_NAME::operator const WRAPPED_TYPE() const { return value; } \
-const Data::TypeInfo Data::CLASS_NAME::TYPE = { .name = TYPE_NAME, .deserializer = &Data::CLASS_NAME::Deserialize }; \
+const Data::TypeInfo Data::CLASS_NAME::TYPE = { .name = TYPE_NAME, .deserializer = &Data::CLASS_NAME::Deserialize, .fromString = &Data::CLASS_NAME::FromString }; \
 const Data::TypeInfo& Data::CLASS_NAME::GetType() const { return Data::CLASS_NAME::TYPE; }; \
 void Data::CLASS_NAME::Serialize(pugi::xml_node* node) const { node->text().set(std::string(this->ToString())); }
 
@@ -45,6 +45,11 @@ Data::Variant Data::Bool::Deserialize(pugi::xml_node* node) {
     return Data::Bool(node->text().as_bool());
 }
 
+Data::Variant Data::Bool::FromString(std::string string) {
+    return Data::Bool(string[0] == 't' || string[0] == 'T' || string[0] == '1' || string[0] == 'y' || string[0] == 'Y');
+}
+
+
 const Data::String Data::Int::ToString() const {
     return Data::String(std::to_string(value));
 }
@@ -53,6 +58,11 @@ Data::Variant Data::Int::Deserialize(pugi::xml_node* node) {
     return Data::Int(node->text().as_int());
 }
 
+Data::Variant Data::Int::FromString(std::string string) {
+    return Data::Int(std::stoi(string));
+}
+
+
 const Data::String Data::Float::ToString() const {
     return Data::String(std::to_string(value));
 }
@@ -61,6 +71,11 @@ Data::Variant Data::Float::Deserialize(pugi::xml_node* node) {
     return Data::Float(node->text().as_float());
 }
 
+Data::Variant Data::Float::FromString(std::string string) {
+    return Data::Float(std::stof(string));
+}
+
+
 const Data::String Data::String::ToString() const {
     return *this;
 }
@@ -68,3 +83,7 @@ const Data::String Data::String::ToString() const {
 Data::Variant Data::String::Deserialize(pugi::xml_node* node) {
     return Data::String(node->text().as_string());
 }
+
+Data::Variant Data::String::FromString(std::string string) {
+    return Data::String(string);
+}

core/src/datatypes/base.h

@@ -16,15 +16,18 @@ public: \
     virtual const Data::String ToString() const override; \
     virtual void Serialize(pugi::xml_node* node) const override; \
     static Data::Variant Deserialize(pugi::xml_node* node); \
+    static Data::Variant FromString(std::string); \
 };
 
 namespace Data {
     class Variant;
     typedef std::function<Data::Variant(pugi::xml_node*)> Deserializer;
+    typedef std::function<Data::Variant(std::string)> FromString;
 
     struct TypeInfo {
         std::string name;
         Deserializer deserializer;
+        FromString fromString;
         TypeInfo(const TypeInfo&) = delete;
     };
 

core/src/datatypes/cframe.cpp

@@ -10,6 +10,7 @@
 // #include "meta.h" // IWYU pragma: keep
 
 const Data::CFrame Data::CFrame::IDENTITY(glm::vec3(0, 0, 0), glm::mat3(1.f));
+ const Data::CFrame Data::CFrame::YToZ(glm::vec3(0, 0, 0), glm::mat3(glm::vec3(1, 0, 0), glm::vec3(0, 0, 1), glm::vec3(0, 1, 0)));
 
 Data::CFrame::CFrame(float x, float y, float z, float R00, float R01, float R02, float R10, float R11, float R12, float R20, float R21, float R22)
     : translation(x, y, z)

core/src/datatypes/cframe.h

@@ -31,6 +31,7 @@ namespace Data {
         ~CFrame();
 
         static const CFrame IDENTITY;
+        static const CFrame YToZ;
 
         virtual const TypeInfo& GetType() const override;
         static const TypeInfo TYPE;

core/src/objects/handles.cpp

@@ -67,8 +67,9 @@ std::optional<HandleFace> Handles::RaycastHandle(rp3d::Ray ray) {
     for (HandleFace face : HandleFace::Faces) {
         Data::CFrame cframe = GetCFrameOfHandle(face);
         // Implement manual detection via boxes instead of... this shit
-        rp3d::RigidBody* body = world->createRigidBody(cframe);
-        body->addCollider(common.createBoxShape(Data::Vector3(.5, .5, .5)), rp3d::Transform::identity());
+        // This code also hardly works, and is not good at all... Hooo nope.
+        rp3d::RigidBody* body = world->createRigidBody(Data::CFrame::IDENTITY + cframe.Position());
+        body->addCollider(common.createBoxShape(cframe.Rotation() * Data::Vector3(HandleSize(face) / 2.f)), rp3d::Transform::identity());
 
         rp3d::RaycastInfo info;
         if (body->raycast(ray, info)) {
@@ -81,3 +82,9 @@ std::optional<HandleFace> Handles::RaycastHandle(rp3d::Ray ray) {
 
     return std::nullopt;
 }
+
+Data::Vector3 Handles::HandleSize(HandleFace face) {
+    if (handlesType == HandlesType::MoveHandles)
+        return glm::vec3(0.5f, 0.5f, 2.f);
+    return glm::vec3(1,1,1);
+}

core/src/objects/handles.h

@@ -24,12 +24,20 @@ class HandleFace {
     static std::array<HandleFace, 6> Faces;
 };
 
+enum HandlesType {
+    MoveHandles,
+    ScaleHandles,
+    RotateHandles,
+};
+
 class Handles : public Instance {
 public:
     const static InstanceType TYPE;
 
     bool active;
     std::optional<std::weak_ptr<Part>> adornee;
+    HandlesType handlesType;
+
     // inline std::optional<std::weak_ptr<Part>> GetAdornee() { return adornee; }
     // inline void SetAdornee(std::optional<std::weak_ptr<Part>> newAdornee) { this->adornee = newAdornee; updateAdornee(); };
 
@@ -39,6 +47,7 @@ public:
     bool worldMode = false;
     Data::CFrame GetCFrameOfHandle(HandleFace face);
     Data::CFrame PartCFrameFromHandlePos(HandleFace face, Data::Vector3 newPos);
+    Data::Vector3 HandleSize(HandleFace face);
     std::optional<HandleFace> RaycastHandle(rp3d::Ray ray);
 
     static inline std::shared_ptr<Handles> New() { return std::make_shared<Handles>(); };

core/src/objects/part.cpp

@@ -69,33 +69,37 @@ Part::Part(PartConstructParams params): Instance(&TYPE), cframe(Data::CFrame(par
                 .type = &Data::Bool::TYPE,
                 .codec = fieldCodecOf<Data::Bool, bool>(),
                 .updateCallback = memberFunctionOf(&Part::onUpdated, this)
-            } }, { "Position", {
+            }}, { "Position", {
                 .backingField = &cframe,
                 .type = &Data::Vector3::TYPE,
                 .codec = cframePositionCodec(),
                 .updateCallback = memberFunctionOf(&Part::onUpdated, this),
                 .flags = PropertyFlags::PROP_NOSAVE
-            } }, { "Rotation", {
+            }}, { "Rotation", {
                 .backingField = &cframe,
                 .type = &Data::Vector3::TYPE,
                 .codec = cframeRotationCodec(),
                 .updateCallback = memberFunctionOf(&Part::onUpdated, this),
                 .flags = PropertyFlags::PROP_NOSAVE
-            } }, { "CFrame", {
+            }}, { "CFrame", {
                 .backingField = &cframe,
                 .type = &Data::CFrame::TYPE,
                 .codec = fieldCodecOf<Data::CFrame>(),
                 .updateCallback = memberFunctionOf(&Part::onUpdated, this),
-            } }, { "Size", {
+            }}, { "Size", {
                 .backingField = &size,
                 .type = &Data::Vector3::TYPE,
                 .codec = fieldCodecOf<Data::Vector3, glm::vec3>(),
                 .updateCallback = memberFunctionOf(&Part::onUpdated, this)
-            } }, { "Color", {
+            }}, { "Color", {
                 .backingField = &color,
                 .type = &Data::Color3::TYPE,
                 .codec = fieldCodecOf<Data::Color3>(),
-            } }
+            }}, { "Transparency", {
+                .backingField = &transparency,
+                .type = &Data::Float::TYPE,
+                .codec = fieldCodecOf<Data::Float, float>(),
+            }}
         }
     });
 }

core/src/objects/part.h

@@ -32,6 +32,7 @@ public:
     Data::CFrame cframe;
     glm::vec3 size;
     Data::Color3 color;
+    float transparency = 0.f;
     bool selected = false;
     
     bool anchored = false;

core/src/rendering/renderer.cpp

@@ -67,6 +67,11 @@ void renderInit(GLFWwindow* window, int width, int height) {
 
 void renderParts() {
     glDepthMask(GL_TRUE);
+    glEnable(GL_CULL_FACE);
+    glCullFace(GL_BACK);
+    glFrontFace(GL_CW);
+    glEnable(GL_BLEND);
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 
     // Use shader
     shader->use();
@@ -111,12 +116,17 @@ void renderParts() {
     // Pass in the camera position
     shader->set("viewPos", camera.cameraPos);
 
-    // TODO: Same as todo in src/physics/simulation.cpp
+    // Sort by nearest
+    std::map<float, std::shared_ptr<Part>> sorted;
     for (InstanceRef inst : workspace()->GetChildren()) {
         if (inst->GetClass()->className != "Part") continue;
         std::shared_ptr<Part> part = std::dynamic_pointer_cast<Part>(inst);
+        if (part->transparency > 0.00001) {
+            float distance = glm::length(glm::vec3(Data::Vector3(camera.cameraPos) - part->position()));
+            sorted[distance] = part;
+        } else {
             glm::mat4 model = part->cframe;
-        if (inst->name == "camera") model = camera.getLookAt();
+            if (part->name == "camera") model = camera.getLookAt();
             model = glm::scale(model, part->size);
             shader->set("model", model);
             shader->set("material", Material {
@@ -127,14 +137,39 @@ void renderParts() {
             glm::mat3 normalMatrix = glm::mat3(glm::transpose(glm::inverse(model)));
             shader->set("normalMatrix", normalMatrix);
             shader->set("texScale", part->size);
+            shader->set("transparency", part->transparency);
 
             CUBE_MESH->bind();
-        glDrawArrays(GL_TRIANGLES, 0, 36);
+            glDrawArrays(GL_TRIANGLES, 0, CUBE_MESH->vertexCount);
+        }
+    }
+
+    // TODO: Same as todo in src/physics/simulation.cpp
+    // According to LearnOpenGL, std::map automatically sorts its contents.
+    for (std::map<float, std::shared_ptr<Part>>::reverse_iterator it = sorted.rbegin(); it != sorted.rend(); it++) {
+        std::shared_ptr<Part> part = it->second;
+        glm::mat4 model = part->cframe;
+        if (part->name == "camera") model = camera.getLookAt();
+        model = glm::scale(model, part->size);
+        shader->set("model", model);
+        shader->set("material", Material {
+            .diffuse = part->color,
+            .specular = glm::vec3(0.5f, 0.5f, 0.5f),
+            .shininess = 16.0f,
+        });
+        glm::mat3 normalMatrix = glm::mat3(glm::transpose(glm::inverse(model)));
+        shader->set("normalMatrix", normalMatrix);
+        shader->set("texScale", part->size);
+        shader->set("transparency", part->transparency);
+
+        CUBE_MESH->bind();
+        glDrawArrays(GL_TRIANGLES, 0, CUBE_MESH->vertexCount);
     }
 }
 
 void renderSkyBox() {
     glDepthMask(GL_FALSE);
+    glCullFace(GL_FRONT);
 
     skyboxShader->use();
 
@@ -155,6 +190,7 @@ void renderHandles() {
     if (!editorToolHandles->adornee.has_value() || !editorToolHandles->active) return;
 
     glDepthMask(GL_TRUE);
+    glCullFace(GL_BACK);
     
     // Use shader
     handleShader->use();
@@ -177,7 +213,7 @@ void renderHandles() {
 
     for (auto face : HandleFace::Faces) {
         glm::mat4 model = editorToolHandles->GetCFrameOfHandle(face);
-        model = glm::scale(model, glm::vec3(1,1,1));
+        model = glm::scale(model, (glm::vec3)editorToolHandles->HandleSize(face));
         handleShader->set("model", model);
         handleShader->set("material", Material {
             .diffuse = glm::abs(face.normal),
@@ -187,11 +223,18 @@ void renderHandles() {
         glm::mat3 normalMatrix = glm::mat3(glm::transpose(glm::inverse(model)));
         handleShader->set("normalMatrix", normalMatrix);
 
+        if (editorToolHandles->handlesType == HandlesType::MoveHandles) {
             ARROW_MESH->bind();
             glDrawArrays(GL_TRIANGLES, 0, ARROW_MESH->vertexCount);
+        } else {
+            SPHERE_MESH->bind();
+            glDrawArrays(GL_TRIANGLES, 0, SPHERE_MESH->vertexCount);
+        }
     }
 
     // 2d square overlay
+    glDisable(GL_CULL_FACE);
+
     identityShader->use();
     identityShader->set("aColor", glm::vec3(0.f, 1.f, 1.f));
     

deps.txt

@@ -1,10 +1,9 @@
-glm
-opengl
-assimp
-sdl2
+opengl (Linux: glvnd, Windows: [built-in/none])
 glfw
-glut
 glew
+glm
+sdl2
+stb
 qt6
 reactphysics3d
 pugixml

editor/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.16)
+cmake_minimum_required(VERSION 3.31..)
 
 project(editor VERSION 0.1 LANGUAGES CXX)
 
@@ -65,6 +65,16 @@ endif()
 target_include_directories(editor PUBLIC "../core/src" "../include")
 target_link_libraries(editor PRIVATE openblocks Qt${QT_VERSION_MAJOR}::Widgets)
 
+# Qt6 does not include QOpenGLWidgets as part of Widgets base anymore, so
+# we have to include it manually
+if (${QT_VERSION} GREATER_EQUAL 6)
+    find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS OpenGL OpenGLWidgets)
+    find_package(Qt${QT_VERSION_MAJOR} REQUIRED COMPONENTS OpenGL OpenGLWidgets)
+
+    target_include_directories(editor PUBLIC Qt6::OpenGL Qt6::OpenGLWidgets)
+    target_link_libraries(editor PRIVATE Qt6::OpenGL Qt6::OpenGLWidgets)
+endif()
+
 # Qt for iOS sets MACOSX_BUNDLE_GUI_IDENTIFIER automatically since Qt 6.1.
 # If you are developing for iOS or macOS you should consider setting an
 # explicit, fixed bundle identifier manually though.
@@ -86,6 +96,8 @@ install(TARGETS editor
     RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
 )
 
+install(FILES $<TARGET_RUNTIME_DLLS:editor> TYPE BIN)
+
 if(QT_VERSION_MAJOR EQUAL 6)
     qt_finalize_executable(editor)
 endif()

editor/mainglwidget.cpp

@@ -138,7 +138,9 @@ void MainGLWidget::handleHandleDrag(QMouseEvent* evt) {
 
     // Apply snapping in the current frame
     glm::vec3 diff = centerPoint - (glm::vec3)editorToolHandles->adornee->lock()->position();
-    if (snappingFactor()) diff = frame * (glm::round(glm::vec3(frame.Inverse() * diff) / snappingFactor()) * snappingFactor());
+    // printf("\n=======\nPre-snap: (%f, %f, %f)\n", diff.x, diff.y, diff.z);
+    if (snappingFactor()) diff = frame.Rotation() * (glm::round(glm::vec3(frame.Inverse().Rotation() * diff) / snappingFactor()) * snappingFactor());
+    // printf("Post-snap: (%f, %f, %f)\n", diff.x, diff.y, diff.z);
 
     switch (mainWindow()->selectedTool) {
         case SelectedTool::SELECT: break;

editor/mainwindow.cpp

@@ -12,15 +12,20 @@
 #include <QAbstractItemView>
 #include <memory>
 #include <optional>
+#include <qglobal.h>
+#include <qwindowdefs.h>
+#include <sstream>
 
 #include "common.h"
 #include "editorcommon.h"
 #include "objects/base/instance.h"
 #include "objects/datamodel.h"
+#include "objects/handles.h"
 #include "physics/simulation.h"
 #include "objects/part.h"
 #include "qfiledialog.h"
-#include "qitemselectionmodel.h"
+#include "qclipboard.h"
+#include "qmimedata.h"
 #include "qobject.h"
 #include "qsysinfo.h"
 
@@ -36,7 +41,7 @@ MainWindow::MainWindow(QWidget *parent)
     timer.start(33, this);
     setMouseTracking(true);
 
-    ConnectSelectionChangeHandler();
+    ui->explorerView->buildContextMenu();
 
     connect(ui->actionToolSelect, &QAction::triggered, this, [&]() { selectedTool = SelectedTool::SELECT; updateToolbars(); });
     connect(ui->actionToolMove, &QAction::triggered, this, [&](bool state) { selectedTool = state ? SelectedTool::MOVE : SelectedTool::SELECT; updateToolbars(); });
@@ -67,21 +72,124 @@ MainWindow::MainWindow(QWidget *parent)
     connect(ui->actionSave, &QAction::triggered, this, [&]() {
         std::optional<std::string> path;
         if (!dataModel->HasFile())
-            path = QFileDialog::getSaveFileName(this, QString::fromStdString("Save " + dataModel->name), "", "*.obl").toStdString();
+            path = openFileDialog("Openblocks Level (*.obl)", ".obl", QFileDialog::AcceptSave, QString::fromStdString("Save " + dataModel->name));
         if (path == "") return;
 
         dataModel->SaveToFile(path);
     });
 
     connect(ui->actionOpen, &QAction::triggered, this, [&]() {
-        std::string path = QFileDialog::getOpenFileName(this, "Load file", "", "*.obl").toStdString();
-        if (path == "") return;
-        std::shared_ptr<DataModel> newModel = DataModel::LoadFromFile(path);
+        std::optional<std::string> path = openFileDialog("Openblocks Level (*.obl)", ".obl", QFileDialog::AcceptOpen);
+        if (!path) return;
+        std::shared_ptr<DataModel> newModel = DataModel::LoadFromFile(path.value());
         dataModel = newModel;
-        delete ui->explorerView->selectionModel();
-        ui->explorerView->reset();
-        ui->explorerView->setModel(new ExplorerModel(dataModel));
-        ConnectSelectionChangeHandler();
+        ui->explorerView->updateRoot(newModel);
+    });
+
+    connect(ui->actionDelete, &QAction::triggered, this, [&]() {
+        for (InstanceRefWeak inst : getSelection()) {
+            if (inst.expired()) continue;
+            inst.lock()->SetParent(std::nullopt);
+        }
+        setSelection(std::vector<InstanceRefWeak> {});
+    });
+
+    connect(ui->actionCopy, &QAction::triggered, this, [&]() {
+        pugi::xml_document rootDoc;
+        for (InstanceRefWeak inst : getSelection()) {
+            if (inst.expired()) continue;
+            inst.lock()->Serialize(&rootDoc);
+        }
+
+        std::ostringstream encoded;
+        rootDoc.save(encoded);
+
+        QMimeData* mimeData = new QMimeData;
+        mimeData->setData("application/xml", QByteArray::fromStdString(encoded.str()));
+        QApplication::clipboard()->setMimeData(mimeData);
+    });
+    connect(ui->actionCut, &QAction::triggered, this, [&]() {
+        pugi::xml_document rootDoc;
+        for (InstanceRefWeak inst : getSelection()) {
+            if (inst.expired()) continue;
+            inst.lock()->Serialize(&rootDoc);
+            inst.lock()->SetParent(std::nullopt);
+        }
+
+        std::ostringstream encoded;
+        rootDoc.save(encoded);
+
+        QMimeData* mimeData = new QMimeData;
+        mimeData->setData("application/xml", QByteArray::fromStdString(encoded.str()));
+        QApplication::clipboard()->setMimeData(mimeData);
+    });
+
+    connect(ui->actionPaste, &QAction::triggered, this, [&]() {
+        const QMimeData* mimeData = QApplication::clipboard()->mimeData();
+        if (!mimeData || !mimeData->hasFormat("application/xml")) return;
+        QByteArray bytes = mimeData->data("application/xml");
+        std::string encoded = bytes.toStdString();
+
+        pugi::xml_document rootDoc;
+        rootDoc.load_string(encoded.c_str());
+
+        for (pugi::xml_node instNode : rootDoc.children()) {
+            InstanceRef inst = Instance::Deserialize(&instNode);
+            workspace()->AddChild(inst);
+        }
+    });
+
+    connect(ui->actionPasteInto, &QAction::triggered, this, [&]() {
+        if (getSelection().size() != 1 || getSelection()[0].expired()) return;
+
+        InstanceRef selectedParent = getSelection()[0].lock();
+
+        const QMimeData* mimeData = QApplication::clipboard()->mimeData();
+        if (!mimeData || !mimeData->hasFormat("application/xml")) return;
+        QByteArray bytes = mimeData->data("application/xml");
+        std::string encoded = bytes.toStdString();
+
+        pugi::xml_document rootDoc;
+        rootDoc.load_string(encoded.c_str());
+
+        for (pugi::xml_node instNode : rootDoc.children()) {
+            InstanceRef inst = Instance::Deserialize(&instNode);
+            selectedParent->AddChild(inst);
+        }
+    });
+
+    connect(ui->actionSaveModel, &QAction::triggered, this, [&]() {
+        std::optional<std::string> path = openFileDialog("Openblocks Model (*.obm)", ".obm", QFileDialog::AcceptSave);
+        if (!path) return;
+        std::ofstream outStream(path.value());
+
+        // Serialized XML for exporting
+        pugi::xml_document modelDoc;
+        pugi::xml_node modelRoot = modelDoc.append_child("openblocks");
+
+        for (InstanceRefWeak inst : getSelection()) {
+            if (inst.expired()) continue;
+            inst.lock()->Serialize(&modelRoot);
+        }
+
+        modelDoc.save(outStream);
+    });
+
+    connect(ui->actionInsertModel, &QAction::triggered, this, [&]() {
+        if (getSelection().size() != 1 || getSelection()[0].expired()) return;
+        InstanceRef selectedParent = getSelection()[0].lock();
+
+        std::optional<std::string> path = openFileDialog("Openblocks Model (*.obm)", ".obm", QFileDialog::AcceptOpen);
+        if (!path) return;
+        std::ifstream inStream(path.value());
+
+        pugi::xml_document modelDoc;
+        modelDoc.load(inStream);
+
+        for (pugi::xml_node instNode : modelDoc.child("openblocks").children("Item")) {
+            InstanceRef inst = Instance::Deserialize(&instNode);
+            selectedParent->AddChild(inst);
+        }
     });
     
     // Update handles
@@ -126,17 +234,6 @@ MainWindow::MainWindow(QWidget *parent)
     syncPartPhysics(ui->mainWidget->lastPart);
 }
 
-void MainWindow::ConnectSelectionChangeHandler() {
-    // connect(ui->explorerView->selectionModel(), &QItemSelectionModel::selectionChanged, this, [&](const QItemSelection &selected, const QItemSelection &deselected) {
-    //     if (selected.count() == 0) return;
-
-    //     std::optional<InstanceRef> inst = selected.count() == 0 ? std::nullopt
-    //         : std::make_optional(((Instance*)selected.indexes()[0].internalPointer())->shared_from_this());
-
-    //     ui->propertiesView->setSelected(inst);
-    // });
-}
-
 static std::chrono::time_point lastTime = std::chrono::steady_clock::now();
 void MainWindow::timerEvent(QTimerEvent* evt) {
     if (evt->timerId() != timer.timerId()) {
@@ -167,6 +264,23 @@ void MainWindow::updateToolbars() {
     if (selectedTool == SelectedTool::MOVE) editorToolHandles->worldMode = true;
     if (selectedTool == SelectedTool::SCALE) editorToolHandles->worldMode = false;
     editorToolHandles->active = selectedTool != SelectedTool::SELECT;
+    editorToolHandles->handlesType =
+      selectedTool == SelectedTool::MOVE ? HandlesType::MoveHandles
+    : selectedTool == SelectedTool::SCALE ? HandlesType::ScaleHandles
+    : selectedTool == SelectedTool::ROTATE ? HandlesType::RotateHandles
+    : HandlesType::ScaleHandles;
+}
+
+std::optional<std::string> MainWindow::openFileDialog(QString filter, QString defaultExtension, QFileDialog::AcceptMode acceptMode, QString title) {
+    QFileDialog dialog(this);
+    if (title != "") dialog.setWindowTitle(title);
+    dialog.setNameFilters(QStringList { filter, "All Files (*)" });
+    dialog.setDefaultSuffix(defaultExtension);
+    dialog.setAcceptMode(acceptMode);
+    if (!dialog.exec())
+        return std::nullopt;
+
+    return dialog.selectedFiles().front().toStdString();
 }
 
 MainWindow::~MainWindow()

editor/mainwindow.h

@@ -7,6 +7,7 @@
 #include "qmenu.h"
 #include <QMainWindow>
 #include <QLineEdit>
+#include <qfiledialog.h>
 
 enum SelectedTool {
     SELECT,
@@ -44,6 +45,7 @@ private:
 
     void updateToolbars();
     void timerEvent(QTimerEvent*) override;
-    void ConnectSelectionChangeHandler();
+    
+    std::optional<std::string> openFileDialog(QString filter, QString defaultExtension, QFileDialog::AcceptMode acceptMode, QString title = "");
 };
 #endif // MAINWINDOW_H

editor/mainwindow.ui

@@ -41,7 +41,7 @@
      <x>0</x>
      <y>0</y>
      <width>1027</width>
-     <height>22</height>
+     <height>30</height>
     </rect>
    </property>
    <widget class="QMenu" name="menuFile">
@@ -115,6 +115,12 @@
    <addaction name="actionToolScale"/>
    <addaction name="actionToolRotate"/>
    <addaction name="separator"/>
+   <addaction name="actionDelete"/>
+   <addaction name="actionCopy"/>
+   <addaction name="actionCut"/>
+   <addaction name="actionPaste"/>
+   <addaction name="actionPasteInto"/>
+   <addaction name="separator"/>
    <addaction name="actionGridSnap1"/>
    <addaction name="actionGridSnap05"/>
    <addaction name="actionGridSnapOff"/>
@@ -315,6 +321,113 @@
     <enum>QAction::MenuRole::NoRole</enum>
    </property>
   </action>
+  <action name="actionCopy">
+   <property name="icon">
+    <iconset theme="edit-copy"/>
+   </property>
+   <property name="text">
+    <string>Copy</string>
+   </property>
+   <property name="toolTip">
+    <string>Copy objects to clipboard</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+C</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionCut">
+   <property name="icon">
+    <iconset theme="edit-cut"/>
+   </property>
+   <property name="text">
+    <string>Cut</string>
+   </property>
+   <property name="toolTip">
+    <string>Cut objects into clipboard</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+X</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionPaste">
+   <property name="icon">
+    <iconset theme="edit-paste"/>
+   </property>
+   <property name="text">
+    <string>Paste</string>
+   </property>
+   <property name="toolTip">
+    <string>Paste objects from clipboard</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+V</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionPasteInto">
+   <property name="icon">
+    <iconset theme="edit-paste"/>
+   </property>
+   <property name="text">
+    <string>Paste Into</string>
+   </property>
+   <property name="toolTip">
+    <string>Paste objects from clipboard into selected object</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Shift+V</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionDelete">
+   <property name="icon">
+    <iconset theme="edit-delete"/>
+   </property>
+   <property name="text">
+    <string>Delete Object</string>
+   </property>
+   <property name="toolTip">
+    <string>Delete selected objects</string>
+   </property>
+   <property name="shortcut">
+    <string>Del</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionSaveModel">
+   <property name="text">
+    <string>Save Model to File</string>
+   </property>
+   <property name="toolTip">
+    <string>Saves objects to file as XML model</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
+  <action name="actionInsertModel">
+   <property name="text">
+    <string>Insert Model from File</string>
+   </property>
+   <property name="toolTip">
+    <string>Insert model from XML file</string>
+   </property>
+   <property name="menuRole">
+    <enum>QAction::MenuRole::NoRole</enum>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>

editor/panes/explorermodel.cpp

@@ -234,6 +234,12 @@ bool ExplorerModel::dropMimeData(const QMimeData *data, Qt::DropAction action, i
     return true;
 }
 
+void ExplorerModel::updateRoot(InstanceRef newRoot) {
+    beginResetModel();
+    rootItem = newRoot;
+    endResetModel();
+}
+
 QMimeData* ExplorerModel::mimeData(const QModelIndexList& indexes) const {
     // application/x-openblocks-instance-pointers
     DragDropSlot* slot = new DragDropSlot();

editor/panes/explorermodel.h

@@ -1,18 +1,12 @@
 #pragma once
 
 #include "objects/base/instance.h"
-#include "objects/part.h"
 #include "qabstractitemmodel.h"
 #include "qevent.h"
-#include "qmenu.h"
 #include "qnamespace.h"
-#include "qtreeview.h"
 #include <QOpenGLWidget>
 #include <QWidget>
-#include <memory>
 
-// #ifndef EXPLORERMODEL_H
-// #define EXPLORERMODEL_H
 
 class ExplorerModel : public QAbstractItemModel {
     Q_OBJECT
@@ -42,6 +36,8 @@ public:
     Qt::DropActions supportedDropActions() const override;
     InstanceRef fromIndex(const QModelIndex index) const;
     QModelIndex ObjectToIndex(InstanceRef item);
+
+    void updateRoot(InstanceRef newRoot);
 private:
     InstanceRef rootItem;
     QModelIndex toIndex(InstanceRef item);

editor/panes/explorerview.cpp

@@ -1,13 +1,16 @@
 #include "explorerview.h"
 #include "explorermodel.h"
+#include "mainwindow.h"
+#include "../ui_mainwindow.h"
 #include "common.h"
 #include "objects/base/instance.h"
-#include "objects/workspace.h"
 #include "qabstractitemmodel.h"
-#include "qaction.h"
-#include "qnamespace.h"
+#include <qaction.h>
+#include <qnamespace.h>
 #include <qitemselectionmodel.h>
 
+#define M_mainWindow dynamic_cast<MainWindow*>(window())
+
 ExplorerView::ExplorerView(QWidget* parent):
     QTreeView(parent),
     model(ExplorerModel(std::dynamic_pointer_cast<Instance>(dataModel))) {
@@ -57,8 +60,6 @@ ExplorerView::ExplorerView(QWidget* parent):
             this->selectionModel()->select(index, QItemSelectionModel::SelectionFlag::Select);
         }
     });
-
-    buildContextMenu();
 }
 
 ExplorerView::~ExplorerView() {
@@ -67,19 +68,23 @@ ExplorerView::~ExplorerView() {
 void ExplorerView::keyPressEvent(QKeyEvent* event) {
     switch (event->key()) {
     case Qt::Key_Delete:
-        actionDelete->trigger();
+        M_mainWindow->ui->actionDelete->trigger();
         break;
     }
 }
 
 void ExplorerView::buildContextMenu() {
-    // This will leak memory. Anyway...
-    contextMenu.addAction(this->actionDelete = new QAction(QIcon("assets/icons/editor/delete"), "Delete"));
-
-    connect(actionDelete, &QAction::triggered, this, [&]() {
-        QModelIndexList selectedIndexes = this->selectionModel()->selectedIndexes();
-        for (QModelIndex index : selectedIndexes) {
-            model.fromIndex(index)->SetParent(std::nullopt);
-        }
-    });
+    contextMenu.addAction(M_mainWindow->ui->actionDelete);
+    contextMenu.addSeparator();
+    contextMenu.addAction(M_mainWindow->ui->actionCopy);
+    contextMenu.addAction(M_mainWindow->ui->actionCut);
+    contextMenu.addAction(M_mainWindow->ui->actionPaste);
+    contextMenu.addAction(M_mainWindow->ui->actionPasteInto);
+    contextMenu.addSeparator();
+    contextMenu.addAction(M_mainWindow->ui->actionSaveModel);
+    contextMenu.addAction(M_mainWindow->ui->actionInsertModel);
+}
+
+void ExplorerView::updateRoot(InstanceRef newRoot) {
+    model.updateRoot(newRoot);
 }

editor/panes/explorerview.h

@@ -20,18 +20,10 @@ public:
 
     void keyPressEvent(QKeyEvent*) override;
     // void dropEvent(QDropEvent*) override;
+
+    void buildContextMenu();
+    void updateRoot(InstanceRef newRoot);
 private:
     ExplorerModel model;
     QMenu contextMenu;
-
-    // TODO: Move these to a separate top-level namespace so these can be
-    // accessed from multiple locations
-    QAction* actionDelete;
-    QAction* actionCopy;
-    QAction* actionCut;
-    QAction* actionPaste;
-    QAction* actionPasteInto;
-    QAction* actionSelectChildren;
-
-    void buildContextMenu();
 };

editor/panes/propertiesmodel.cpp

@@ -56,10 +56,10 @@ bool PropertiesModel::setData(const QModelIndex &index, const QVariant &value, i
 
     switch (role) {
     case Qt::EditRole:
-        if (meta.type != &Data::String::TYPE)
+        if (!meta.type->fromString)
             return false;
 
-        selectedItem->SetPropertyValue(propertyName, value.toString().toStdString());
+        selectedItem->SetPropertyValue(propertyName, meta.type->fromString(value.toString().toStdString()));
         return true;
     case Qt::CheckStateRole:
         if (meta.type != &Data::Bool::TYPE)

run.sh

@@ -1,7 +1,9 @@
+if [ $# -eq 0 ] || ([ "$1" != "editor" ] && [ "$1" != "client" ]); then echo "Argument missing, must be 'client' or 'editor'"; exit; fi
+
 [ "$2" = "-debug" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=Debug
 [ "$2" = "-release" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=Release
 [ "$2" = "-reldbg" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=RelWithDebInfo
 
 [ "$3" = "-gdb" ] && PRE_COMMAND="gdb -ex run "
 
-cmake $CMAKE_OPTS . && cmake --build . && $PRE_COMMAND ./bin/$1
+cmake -Bbuild $CMAKE_OPTS . && (cd build; cmake --build .; cd ..) && $PRE_COMMAND ./build/bin/$1