From f138311d2d2e0cc9ba0496d523bb46f2c1c9fb73 Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Wed, 20 Sep 2023 23:58:58 -0700
Subject: Copy from the PlasticSCM repo, replace vendored glm wtih conan

---
 source/30-game/World.cpp | 79 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 source/30-game/World.cpp

(limited to 'source/30-game/World.cpp')

diff --git a/source/30-game/World.cpp b/source/30-game/World.cpp
new file mode 100644
index 0000000..83b9a10
--- /dev/null
+++ b/source/30-game/World.cpp
@@ -0,0 +1,79 @@
+#include "World.hpp"
+
+#include "GameObject.hpp"
+#include "PodVector.hpp"
+
+#include <glad/glad.h>
+
+namespace ProjectBrussel_UNITY_ID {
+template <typename TFunction>
+void CallGameObjectRecursive(GameObject* start, TFunction&& func) {
+	PodVector<GameObject*> stack;
+	stack.push_back(start);
+
+	while (!stack.empty()) {
+		auto obj = stack.back();
+		stack.pop_back();
+
+		for (auto child : obj->GetChildren()) {
+			stack.push_back(child);
+		}
+
+		func(obj);
+	}
+}
+} // namespace ProjectBrussel_UNITY_ID
+
+GameWorld::GameWorld()
+	: mRoot{ new GameObject(this) } {
+}
+
+GameWorld::~GameWorld() {
+	if (mAwakened) {
+		Resleep();
+	}
+
+	delete mRoot;
+}
+
+const GameObject& GameWorld::GetRoot() const {
+	return *mRoot;
+};
+
+void GameWorld::Awaken() {
+	using namespace ProjectBrussel_UNITY_ID;
+
+	if (mAwakened) {
+		return;
+	}
+
+	CallGameObjectRecursive(mRoot, [](GameObject* obj) { obj->Awaken(); });
+	mAwakened = true;
+}
+
+void GameWorld::Resleep() {
+	using namespace ProjectBrussel_UNITY_ID;
+
+	if (!mAwakened) {
+		return;
+	}
+
+	CallGameObjectRecursive(mRoot, [](GameObject* obj) { obj->Resleep(); });
+	mAwakened = false;
+}
+
+void GameWorld::Update() {
+	using namespace ProjectBrussel_UNITY_ID;
+
+	CallGameObjectRecursive(mRoot, [this](GameObject* obj) {
+		obj->Update();
+	});
+}
+
+GameObject& GameWorld::GetRoot() {
+	return *mRoot;
+}
+
+bool GameWorld::IsAwake() const {
+	return mAwakened;
+}
-- 
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