From 1ae32d48ebf409f0ee75f777624b5d96fc3cdfac Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Sun, 25 Dec 2022 20:56:22 +0100
Subject: Added CLI option to select the starting scene

Usage: kurator -s {Battle,ScenarioEditor}; anything else make it start with Title scene
---
 kurator/CMakeLists.txt       |  2 ++
 kurator/src/SceneBuilder.cpp | 34 ++++++++++++++++++++++++++++++++++
 kurator/src/SceneBuilder.h   | 24 ++++++++++++++++++++++++
 kurator/src/args.cpp         | 30 ++++++++++++++++++++++++++++++
 kurator/src/args.h           | 19 +++++++++++++++++++
 kurator/src/main.cpp         |  8 +++++---
 6 files changed, 114 insertions(+), 3 deletions(-)
 create mode 100644 kurator/src/SceneBuilder.cpp
 create mode 100644 kurator/src/SceneBuilder.h
 create mode 100644 kurator/src/args.cpp
 create mode 100644 kurator/src/args.h

diff --git a/kurator/CMakeLists.txt b/kurator/CMakeLists.txt
index 65f55eb..44b6be9 100644
--- a/kurator/CMakeLists.txt
+++ b/kurator/CMakeLists.txt
@@ -1,12 +1,14 @@
 project(kurator)
 add_executable(
 	${PROJECT_NAME}
+	src/args.cpp
 	src/Battle.cpp
 	src/colors.cpp
 	src/ForceBalance.cpp
 	src/Log.cpp
 	src/main.cpp
 	src/ScenarioEditor.cpp
+	src/SceneBuilder.cpp
 	src/Session.cpp
 	src/Skybox.cpp
 	src/Title.cpp
diff --git a/kurator/src/SceneBuilder.cpp b/kurator/src/SceneBuilder.cpp
new file mode 100644
index 0000000..4fee62e
--- /dev/null
+++ b/kurator/src/SceneBuilder.cpp
@@ -0,0 +1,34 @@
+#include "SceneBuilder.h"
+
+#include <memory>
+#include <string_view>
+#include <utility>
+
+#include "Battle.h"
+#include "ScenarioEditor.h"
+#include "Scene.h"
+#include "Title.h"
+
+
+namespace kurator
+{
+
+
+SceneBuilder::SceneBuilder(std::shared_ptr<Session> _session) :
+	session {std::move(_session)}
+{
+}
+
+
+std::shared_ptr<Scene>
+SceneBuilder::build(std::string_view name) const
+{
+	if (name == "Battle")
+		return std::make_shared<Battle>(session);
+	if (name == "ScenarioEditor")
+		return std::make_shared<ScenarioEditor>(session);
+	return std::make_shared<Title>(session);
+}
+
+
+}  // namespace kurator
diff --git a/kurator/src/SceneBuilder.h b/kurator/src/SceneBuilder.h
new file mode 100644
index 0000000..a567593
--- /dev/null
+++ b/kurator/src/SceneBuilder.h
@@ -0,0 +1,24 @@
+#pragma once
+
+#include <memory>
+#include <string_view>
+
+#include "Scene.h"
+#include "Session.h"
+
+
+namespace kurator
+{
+
+
+class SceneBuilder
+{
+public:
+	explicit SceneBuilder(std::shared_ptr<Session> _session);
+	std::shared_ptr<Scene> build(std::string_view name) const;
+private:
+	std::shared_ptr<Session> session;
+};
+
+
+}  // namespace kurator
diff --git a/kurator/src/args.cpp b/kurator/src/args.cpp
new file mode 100644
index 0000000..cff094e
--- /dev/null
+++ b/kurator/src/args.cpp
@@ -0,0 +1,30 @@
+#include "args.h"
+
+#include <unistd.h>
+
+#include <string_view>
+
+
+namespace kurator
+{
+
+
+Args
+parse_args(int argc, char* argv[])
+{
+	Args args {};
+	int opt;
+	while (-1 != (opt = getopt(argc, argv, "s:"))) {
+		switch (opt) {
+		case 's':
+			args.scene = optarg;
+			break;
+		default:
+			break;  // Ignore any problems and proceed with what you can parse properly.
+		}
+	}
+	return args;
+}
+
+
+}  // namespace kurator
diff --git a/kurator/src/args.h b/kurator/src/args.h
new file mode 100644
index 0000000..9418550
--- /dev/null
+++ b/kurator/src/args.h
@@ -0,0 +1,19 @@
+#pragma once
+
+#include <string_view>
+
+
+namespace kurator
+{
+
+
+struct Args
+{
+	std::string_view scene;
+};
+
+
+auto parse_args(int argc, char* argv[]) -> Args;
+
+
+}  // namespace kurator
diff --git a/kurator/src/main.cpp b/kurator/src/main.cpp
index 5cda6d0..b9ef6a3 100644
--- a/kurator/src/main.cpp
+++ b/kurator/src/main.cpp
@@ -1,13 +1,15 @@
 #include <memory>
 
+#include "args.h"
+#include "SceneBuilder.h"
 #include "Session.h"
-#include "ScenarioEditor.h"
 
 
 int
-main(int, char*[])
+main(int argc, char* argv[])
 {
+	const auto args = kurator::parse_args(argc, argv);
 	auto session = std::make_shared<kurator::Session>();
-	session->set(std::make_shared<kurator::ScenarioEditor>(session));
+	session->set(kurator::SceneBuilder(session).build(args.scene));
 	session->run();
 }
-- 
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