From 03009f7d9cd1bc1e996e52603a5cff4374b7910f Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Mon, 26 Dec 2022 17:32:59 +0100
Subject: Reworked scene management around the stack in Session

---
 kurator/src/Log.cpp            |  3 +--
 kurator/src/ScenarioEditor.cpp | 26 +++++++++++++++++++-------
 kurator/src/ScenarioEditor.h   |  5 ++---
 kurator/src/Session.cpp        |  2 ++
 kurator/src/Title.cpp          |  4 ++--
 5 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/kurator/src/Log.cpp b/kurator/src/Log.cpp
index 162e309..0689176 100644
--- a/kurator/src/Log.cpp
+++ b/kurator/src/Log.cpp
@@ -9,7 +9,6 @@
 #include <kurator/stats/events.h>
 
 #include "EventLog.h"
-#include "ScenarioEditor.h"
 #include "Session.h"
 
 
@@ -36,7 +35,7 @@ void
 Log::update(const float)
 {
 	if (IsKeyPressed(KEY_SPACE))
-		session->set(std::make_shared<ScenarioEditor>(session));
+		session->pop();
 }
 
 
diff --git a/kurator/src/ScenarioEditor.cpp b/kurator/src/ScenarioEditor.cpp
index 0b00b02..7025b49 100644
--- a/kurator/src/ScenarioEditor.cpp
+++ b/kurator/src/ScenarioEditor.cpp
@@ -25,7 +25,7 @@ ScenarioEditor::ScenarioEditor(std::shared_ptr<Session> _session) :
 	warbringers {2},
 	eclipses {3},
 	distance {12000},
-	battle {std::make_shared<Battle>(session, scenario())}
+	battle {generate()}
 {
 }
 
@@ -51,13 +51,16 @@ ScenarioEditor::update(float)
 		update |= ImGui::SliderInt("Eclipses", &eclipses, 0, 20);
 		update |= ImGui::SliderFloat("Distance", &distance, 10000, 20000);
 		if (update)
-			battle = std::make_shared<Battle>(session, scenario());
+			battle = generate();
 		if (ImGui::Button("Start"))
-			session->set(std::move(battle));
+			start_battle();
+		ImGui::SameLine();
+		if (ImGui::Button("Back"))
+			session->pop();
 	}
 	ImGui::End();
 	if (IsKeyPressed(KEY_SPACE))
-		session->set(std::move(battle));
+		start_battle();
 }
 
 
@@ -83,10 +86,19 @@ ScenarioEditor::draw() const
 }
 
 
-campaign::Scenario
-ScenarioEditor::scenario() const
+void
+ScenarioEditor::start_battle()
+{
+	session->push(std::move(battle));
+	battle = generate();
+}
+
+
+std::shared_ptr<Scene>
+ScenarioEditor::generate() const
 {
-	return campaign::scenarios::example(teams, anvils, warbringers, eclipses, distance);
+	auto scenario = campaign::scenarios::example(teams, anvils, warbringers, eclipses, distance);
+	return std::make_shared<Battle>(session, std::move(scenario));
 }
 
 
diff --git a/kurator/src/ScenarioEditor.h b/kurator/src/ScenarioEditor.h
index 70ce3a2..ec83965 100644
--- a/kurator/src/ScenarioEditor.h
+++ b/kurator/src/ScenarioEditor.h
@@ -4,8 +4,6 @@
 
 #include <raylib.h>
 
-#include <kurator/campaign/Scenario.h>
-
 #include "Scene.h"
 #include "Session.h"
 
@@ -21,8 +19,9 @@ public:
 	~ScenarioEditor();
 	void update(float dt) override;
 	void draw() const override;
+	void start_battle();
 private:
-	campaign::Scenario scenario() const;
+	std::shared_ptr<Scene> generate() const;
 	std::shared_ptr<Session> session;
 	RenderTexture2D buffer;
 	int teams;
diff --git a/kurator/src/Session.cpp b/kurator/src/Session.cpp
index 9d39d59..59adcae 100644
--- a/kurator/src/Session.cpp
+++ b/kurator/src/Session.cpp
@@ -45,6 +45,8 @@ Session::run()
 		auto scene = scenes.back();
 		rlImGuiBegin();
 		scene->update(GetFrameTime());
+		if (!scenes.empty())
+			scene = scenes.back();
 		BeginDrawing();
 		scene->draw();
 		rlImGuiEnd();
diff --git a/kurator/src/Title.cpp b/kurator/src/Title.cpp
index ffd1b83..30fb209 100644
--- a/kurator/src/Title.cpp
+++ b/kurator/src/Title.cpp
@@ -27,9 +27,9 @@ Title::update(const float)
 	ImGui::SetNextWindowPos({GetScreenWidth()/2.0f, GetScreenHeight()/2.0f}, ImGuiCond_Once, {0.5f, 0.4f});
 	if (ImGui::Begin("Main Menu", nullptr, ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoCollapse)) {
 		if (ImGui::Button("Quick Battle", {-1.0f, 0.0f}))
-			session->set(SceneBuilder(session).battle());
+			session->push(SceneBuilder(session).battle());
 		if (ImGui::Button("Scenario Editor", {-1.0f, 0.0f}))
-			session->set(SceneBuilder(session).scenario_editor());
+			session->push(SceneBuilder(session).scenario_editor());
 		if (ImGui::Button("Exit", {-1.0f, 0.0f}))
 			session->quit();
 	}
-- 
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