From 321103ea84cf61f58a26d59700284d84f11833f5 Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sat, 15 Jun 2024 17:35:13 +0100
Subject: Move main application loop into the library

---
 ui/mainApplication.cpp | 34 ++++++++++++++++++++++++++++++++++
 ui/mainApplication.h   | 18 ++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 ui/mainApplication.cpp
 create mode 100644 ui/mainApplication.h

(limited to 'ui')

diff --git a/ui/mainApplication.cpp b/ui/mainApplication.cpp
new file mode 100644
index 0000000..08f49a4
--- /dev/null
+++ b/ui/mainApplication.cpp
@@ -0,0 +1,34 @@
+#include "mainApplication.h"
+#include "game/gamestate.h"
+#include "game/worldobject.h"
+
+void
+MainApplication::mainLoop()
+{
+	auto t_start = std::chrono::high_resolution_clock::now();
+	while (isRunning) {
+		processInputs();
+		const auto t_end = std::chrono::high_resolution_clock::now();
+		const auto t_passed = std::chrono::duration_cast<TickDuration>(t_end - t_start);
+
+		if (gameState) {
+			gameState->world.apply(&WorldObject::tick, t_passed);
+		}
+		windows.apply(&Window::tick, t_passed);
+		windows.apply(&Window::refresh);
+
+		t_start = t_end;
+	}
+}
+
+void
+MainApplication::processInputs()
+{
+	for (SDL_Event e; SDL_PollEvent(&e);) {
+		if (e.type == SDL_QUIT) {
+			isRunning = false;
+			return;
+		}
+		windows.applyOne(&Window::handleInput, e);
+	}
+}
diff --git a/ui/mainApplication.h b/ui/mainApplication.h
new file mode 100644
index 0000000..a6cb126
--- /dev/null
+++ b/ui/mainApplication.h
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "applicationBase.h"
+#include "collection.h"
+#include "window.h"
+
+class MainApplication : public ApplicationBase {
+public:
+	using Windows = Collection<Window>;
+	void mainLoop();
+
+protected:
+	Windows windows;
+
+private:
+	void processInputs();
+	bool isRunning {true};
+};
-- 
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