Initial claude dump

editor/main.cpp

@@ -1,5 +1,7 @@
 #include <iostream>
 #include <sophia/application.hpp>
+#include <sophia/components.hpp>
+#include <sophia/entity.hpp>
 
 #include "panels/asset_browser_panel.hpp"
 #include "panels/inspector_panel.hpp"
@@ -15,12 +17,19 @@ class Editor : public sophia::Application {
 
     debugUI().show();
 
-    panels().emplace<SceneHierarchyPanel>();
-    panels().emplace<InspectorPanel>();
+    textures.emplace_back("Checker", createCheckerTexture());
+
+    sophia::SceneHandle sceneHandle = scenes().create();
+    sophia::Scene& scene = scenes().get(sceneHandle);
+    sophia::Entity camera = createDemoScene(scene);
+
+    panels().emplace<SceneHierarchyPanel>(scene, selected);
+    panels().emplace<InspectorPanel>(selected, textures);
     panels().emplace<AssetBrowserPanel>();
     sophia::RenderTargetHandle sceneTarget =
         resources().create<sophia::RenderTarget>();
-    views().create({.scene = scenes().create(), .target = sceneTarget});
+    views().create(
+        {.scene = sceneHandle, .target = sceneTarget, .camera = camera});
     panels().emplace<ViewportPanel>(ui(), sceneTarget);
 
     panels().setDefaultLayout(
@@ -31,6 +40,52 @@ class Editor : public sophia::Application {
   }
 
   void onUpdate(const sophia::FrameInfo& frameInfo) override {}
+
+ private:
+  sophia::Entity createDemoScene(sophia::Scene& scene) {
+    sophia::Entity camera = scene.createEntity("Main Camera");
+    camera.addComponent<sophia::CameraComponent>();
+    scene.setActiveCamera(camera);
+
+    sophia::Entity checker = scene.createEntity("Checker");
+    checker.getComponent<sophia::TransformComponent>().position = {-1.5f, 0.f,
+                                                                   0.f};
+    checker.addComponent<sophia::SpriteComponent>(sophia::SpriteComponent{
+        .texture = textures[0].second, .size = {2.f, 2.f}});
+
+    sophia::Entity red = scene.createEntity("Red");
+    red.getComponent<sophia::TransformComponent>().position = {1.f, -0.5f, 0.f};
+    red.addComponent<sophia::SpriteComponent>(sophia::SpriteComponent{
+        .color = {0.9f, 0.25f, 0.25f, 1.f}, .size = {2.f, 2.f}});
+
+    // Drawn over "Red" because of its higher sort order.
+    sophia::Entity blue = scene.createEntity("Blue (translucent)");
+    blue.getComponent<sophia::TransformComponent>().position = {1.75f, 0.25f,
+                                                                0.f};
+    blue.addComponent<sophia::SpriteComponent>(
+        sophia::SpriteComponent{.color = {0.25f, 0.45f, 0.95f, 0.6f},
+                                .size = {2.f, 2.f},
+                                .sortOrder = 1});
+
+    return camera;
+  }
+
+  sophia::TextureHandle createCheckerTexture() {
+    constexpr sophia::u32 SIZE = 8;
+    std::vector<sophia::u8> pixels(SIZE * SIZE * 4);
+    for (sophia::u32 y = 0; y < SIZE; y++) {
+      for (sophia::u32 x = 0; x < SIZE; x++) {
+        sophia::u8 value = ((x + y) % 2 == 0) ? 230 : 60;
+        sophia::u8* pixel = &pixels[(y * SIZE + x) * 4];
+        pixel[0] = pixel[1] = pixel[2] = value;
+        pixel[3] = 255;
+      }
+    }
+    return resources().create<sophia::Texture>(SIZE, SIZE, std::move(pixels));
+  }
+
+  sophia::Entity selected;
+  InspectorPanel::TextureList textures;
 };
 
 SOPHIA_MAIN(Editor)

editor/panels/inspector_panel.cpp

@@ -3,30 +3,135 @@
 #include <imgui.h>
 
 #include <cstdio>
+#include <sophia/components.hpp>
 
 void InspectorPanel::onUpdate(const sophia::FrameInfo&) {
-  char nameBuf[128];
-  std::snprintf(nameBuf, sizeof(nameBuf), "%s", name.c_str());
-  if (ImGui::InputText("Name", nameBuf, sizeof(nameBuf))) {
-    name = nameBuf;
+  if (!selected) {
+    ImGui::TextDisabled("No entity selected");
+    return;
   }
-  ImGui::Text("Tag: %s", tag.c_str());
+
+  drawTag();
+  ImGui::Separator();
+  drawTransform();
+  drawCamera();
+  drawSprite();
 
   ImGui::Separator();
+  drawAddComponent();
+}
 
-  if (ImGui::CollapsingHeader("Transform", ImGuiTreeNodeFlags_DefaultOpen)) {
-    ImGui::DragFloat3("Position", &position.x, 0.1f);
-    ImGui::DragFloat3("Rotation", &rotation.x, 0.1f);
-    ImGui::DragFloat3("Scale", &scale.x, 0.1f);
-  }
+void InspectorPanel::drawTag() {
+  auto& tag = selected.getComponent<sophia::TagComponent>();
 
-  if (ImGui::CollapsingHeader("Mesh Renderer",
-                              ImGuiTreeNodeFlags_DefaultOpen)) {
-    ImGui::Text("Mesh: %s", meshName.c_str());
-    ImGui::Text("Material: %s", materialName.c_str());
-  }
-
-  if (ImGui::CollapsingHeader("Script", ImGuiTreeNodeFlags_DefaultOpen)) {
-    ImGui::Text("%s", scriptName.c_str());
+  char nameBuf[128];
+  std::snprintf(nameBuf, sizeof(nameBuf), "%s", tag.tag.c_str());
+  if (ImGui::InputText("Name", nameBuf, sizeof(nameBuf))) {
+    tag.tag = nameBuf;
+  }
+}
+
+void InspectorPanel::drawTransform() {
+  if (!selected.hasComponent<sophia::TransformComponent>() ||
+      !ImGui::CollapsingHeader("Transform", ImGuiTreeNodeFlags_DefaultOpen)) {
+    return;
+  }
+
+  auto& transform = selected.getComponent<sophia::TransformComponent>();
+  ImGui::DragFloat3("Position", &transform.position.x, 0.1f);
+
+  // 2D only: edits rotation around Z and drops any X/Y rotation.
+  float degrees = glm::degrees(glm::eulerAngles(transform.rotation).z);
+  if (ImGui::DragFloat("Rotation", &degrees, 1.0f)) {
+    transform.rotation =
+        glm::angleAxis(glm::radians(degrees), glm::vec3{0.f, 0.f, 1.f});
+  }
+
+  ImGui::DragFloat3("Scale", &transform.scale.x, 0.1f);
+}
+
+void InspectorPanel::drawCamera() {
+  if (!selected.hasComponent<sophia::CameraComponent>() ||
+      !ImGui::CollapsingHeader("Camera", ImGuiTreeNodeFlags_DefaultOpen)) {
+    return;
+  }
+
+  auto& camera = selected.getComponent<sophia::CameraComponent>();
+  int projection = static_cast<int>(camera.projection);
+  if (ImGui::Combo("Projection", &projection, "Orthographic\0Perspective\0")) {
+    camera.projection =
+        static_cast<sophia::CameraComponent::Projection>(projection);
+  }
+
+  if (camera.projection == sophia::CameraComponent::Projection::Orthographic) {
+    ImGui::DragFloat("Height", &camera.ortho.height, 0.1f, 0.01f, 10000.f);
+  } else {
+    float fov = glm::degrees(camera.perspective.fov);
+    if (ImGui::DragFloat("FOV", &fov, 0.5f, 1.f, 179.f)) {
+      camera.perspective.fov = glm::radians(fov);
+    }
+  }
+}
+
+void InspectorPanel::drawSprite() {
+  if (!selected.hasComponent<sophia::SpriteComponent>()) {
+    return;
+  }
+
+  bool open = true;
+  if (!ImGui::CollapsingHeader("Sprite", &open,
+                               ImGuiTreeNodeFlags_DefaultOpen)) {
+    if (!open) {
+      selected.removeComponent<sophia::SpriteComponent>();
+    }
+    return;
+  }
+
+  auto& sprite = selected.getComponent<sophia::SpriteComponent>();
+
+  const char* current = "None";
+  for (const auto& [name, handle] : textures) {
+    if (handle == sprite.texture) {
+      current = name.c_str();
+    }
+  }
+  if (ImGui::BeginCombo("Texture", current)) {
+    if (ImGui::Selectable("None", !sprite.texture.isValid())) {
+      sprite.texture = sophia::INVALID_HANDLE;
+    }
+    for (const auto& [name, handle] : textures) {
+      if (ImGui::Selectable(name.c_str(), handle == sprite.texture)) {
+        sprite.texture = handle;
+      }
+    }
+    ImGui::EndCombo();
+  }
+
+  ImGui::ColorEdit4("Color", &sprite.color.x);
+  ImGui::DragFloat2("Size", &sprite.size.x, 0.05f);
+  ImGui::SliderFloat2("Pivot", &sprite.pivot.x, 0.f, 1.f);
+  ImGui::DragFloat4("UV Rect", &sprite.uvRect.x, 0.01f);
+  ImGui::DragInt("Sort Order", &sprite.sortOrder);
+
+  if (!open) {
+    selected.removeComponent<sophia::SpriteComponent>();
+  }
+}
+
+void InspectorPanel::drawAddComponent() {
+  if (ImGui::Button("Add Component")) {
+    ImGui::OpenPopup("AddComponent");
+  }
+
+  if (ImGui::BeginPopup("AddComponent")) {
+    if (!selected.hasComponent<sophia::SpriteComponent>() &&
+        ImGui::MenuItem("Sprite")) {
+      selected.addComponent<sophia::SpriteComponent>();
+    }
+    if (!selected.hasComponent<sophia::CameraComponent>() &&
+        ImGui::MenuItem("Camera")) {
+      selected.addComponent<sophia::CameraComponent>();
+    }
+    ImGui::EndPopup();
   }
 }

editor/panels/inspector_panel.hpp

@@ -1,25 +1,31 @@
 #pragma once
 
-#include <glm/glm.hpp>
+#include <sophia/entity.hpp>
 #include <sophia/frame_info.hpp>
+#include <sophia/handles.hpp>
 #include <sophia/ui/panel.hpp>
 #include <string>
+#include <utility>
+#include <vector>
 
 class InspectorPanel : public sophia::Panel {
  public:
-  InspectorPanel() : Panel{{.name = "Inspector"}} {}
+  // Stand-in for an asset browser: the textures a sprite can pick from.
+  using TextureList =
+      std::vector<std::pair<std::string, sophia::TextureHandle>>;
+
+  InspectorPanel(sophia::Entity& selected, const TextureList& textures)
+      : Panel{{.name = "Inspector"}}, selected{selected}, textures{textures} {}
 
   void onUpdate(const sophia::FrameInfo& frameInfo) override;
 
  private:
-  std::string name = "Player";
-  std::string tag = "Player";
+  void drawTag();
+  void drawTransform();
+  void drawCamera();
+  void drawSprite();
+  void drawAddComponent();
 
-  glm::vec3 position{0.0f, 1.0f, 0.0f};
-  glm::vec3 rotation{0.0f, 0.0f, 0.0f};
-  glm::vec3 scale{1.0f, 1.0f, 1.0f};
-
-  std::string meshName = "player_capsule.fbx";
-  std::string materialName = "player_mat";
-  std::string scriptName = "PlayerController.lua";
+  sophia::Entity& selected;
+  const TextureList& textures;
 };

editor/panels/scene_hierarchy_panel.cpp

@@ -2,31 +2,31 @@
 
 #include <imgui.h>
 
-void SceneHierarchyPanel::drawNode(const Node& node) {
-  if (node.children.empty()) {
+#include <sophia/components.hpp>
+
+void SceneHierarchyPanel::onUpdate(const sophia::FrameInfo&) {
+  if (ImGui::Button("+ Sprite")) {
+    selected = scene.createEntity("Sprite");
+    selected.addComponent<sophia::SpriteComponent>();
+  }
+
+  ImGui::Separator();
+
+  // Flat for now: there is no parent/child component yet.
+  scene.forEachEntity([this](sophia::Entity entity) {
     ImGuiTreeNodeFlags flags = ImGuiTreeNodeFlags_Leaf |
                                ImGuiTreeNodeFlags_NoTreePushOnOpen |
                                ImGuiTreeNodeFlags_SpanAvailWidth;
-    if (node.name == selected) {
+    if (entity == selected) {
       flags |= ImGuiTreeNodeFlags_Selected;
     }
-    ImGui::TreeNodeEx(node.name.c_str(), flags);
+
+    const std::string& name = entity.getComponent<sophia::TagComponent>().tag;
+    ImGui::PushID(static_cast<int>(static_cast<sophia::u32>(entity)));
+    ImGui::TreeNodeEx(name.c_str(), flags);
     if (ImGui::IsItemClicked()) {
-      selected = node.name;
+      selected = entity;
     }
-    return;
-  }
-
-  if (ImGui::TreeNodeEx(node.name.c_str(), ImGuiTreeNodeFlags_SpanAvailWidth)) {
-    for (const Node& child : node.children) {
-      drawNode(child);
-    }
-    ImGui::TreePop();
-  }
-}
-
-void SceneHierarchyPanel::onUpdate(const sophia::FrameInfo&) {
-  for (const Node& node : nodes) {
-    drawNode(node);
-  }
+    ImGui::PopID();
+  });
 }

editor/panels/scene_hierarchy_panel.hpp

@@ -1,32 +1,20 @@
 #pragma once
 
+#include <sophia/entity.hpp>
 #include <sophia/frame_info.hpp>
+#include <sophia/scene.hpp>
 #include <sophia/ui/panel.hpp>
-#include <string>
-#include <vector>
 
 class SceneHierarchyPanel : public sophia::Panel {
  public:
-  SceneHierarchyPanel() : Panel{{.name = "Scene Hierarchy", .locked = true}} {}
+  SceneHierarchyPanel(sophia::Scene& scene, sophia::Entity& selected)
+      : Panel{{.name = "Scene Hierarchy", .locked = true}},
+        scene{scene},
+        selected{selected} {}
 
   void onUpdate(const sophia::FrameInfo& frameInfo) override;
 
  private:
-  struct Node {
-    std::string name;
-    std::vector<Node> children;
-  };
-
-  void drawNode(const Node& node);
-
-  std::vector<Node> nodes = {
-      {"Main Camera", {}},
-      {"Directional Light", {}},
-      {"Ground", {}},
-      {"Player", {}},
-      {"Enemies", {{"Enemy_01", {}}, {"Enemy_02", {}}, {"Enemy_03", {}}}},
-      {"Props", {{"Crate_01", {}}, {"Crate_02", {}}}},
-  };
-
-  std::string selected;
+  sophia::Scene& scene;
+  sophia::Entity& selected;
 };