Created example prefab.

src/dawn/prefab/CMakeLists.txt

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+# Copyright (c) 2023 Dominic Masters
+# 
+# This software is released under the MIT License.
+# https://opensource.org/licenses/MIT
+
+target_sources(${DAWN_TARGET_NAME}
+  PRIVATE
+    SimpleSpinningCube.cpp
+)

src/dawn/prefab/SimpleSpinningCube.cpp

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+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#include "SimpleSpinningCube.hpp"
+#include "component/display/MeshRenderer.hpp"
+#include "component/display/material/SimpleTexturedMaterial.hpp"
+#include "display/mesh/CubeMesh.hpp"
+#include "component/SimpleComponent.hpp"
+
+using namespace Dawn;
+
+std::shared_ptr<SceneItem> Dawn::createSimpleSpinningCube(Scene &s) {
+  // Create the scene item.
+  auto cubeItem = s.createSceneItem();
+
+  // Create a simple cube mesh.
+  auto cubeMesh = std::make_shared<Mesh>();
+  cubeMesh->createBuffers(CUBE_VERTICE_COUNT, CUBE_INDICE_COUNT);
+  CubeMesh::buffer(cubeMesh, glm::vec3(-1, -1, -1), glm::vec3(2, 2, 2), 0, 0);
+
+  // Add a renderer to the scene item.
+  auto cubeMeshRenderer = cubeItem->addComponent<MeshRenderer>();
+  cubeMeshRenderer->mesh = cubeMesh;
+
+  // Add a material to the scene item.
+  auto cubeMaterial = cubeItem->addComponent<SimpleTexturedMaterial>();
+  cubeMaterial->setColor(COLOR_MAGENTA);
+
+  // Add a simple event listener component to the scene item.
+  addSimpleComponent(cubeItem, [](auto &cmp, auto &events) {
+    // Note that add component cannot receive a self reference, so we must
+    // capture the component by reference instead.
+    events.push_back(cmp.getScene()->onUnpausedUpdate.listen([&](
+      float_t delta
+    ) {
+      // Since we captured within the lambda, we can access the component
+      // directly.
+      auto item = cmp.getItem();
+      item->setLocalRotation(
+        item->getLocalRotation() *
+        glm::quat(glm::vec3(1, 1, 0) * delta)
+      );
+    }));
+  });
+
+  return cubeItem;
+}

src/dawn/prefab/SimpleSpinningCube.hpp

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+// Copyright (c) 2023 Dominic Masters
+// 
+// This software is released under the MIT License.
+// https://opensource.org/licenses/MIT
+
+#pragma once
+#include "scene/Scene.hpp"
+
+namespace Dawn {
+  std::shared_ptr<SceneItem> createSimpleSpinningCube(Scene &s);
+}