From f9467f322fa7dedf6ba23fcfa7c6d87054ba3def Mon Sep 17 00:00:00 2001
From: Georg Hagen <git.georg.hagen@madvoxel.com>
Date: Mon, 1 Jul 2024 14:01:59 +0200
Subject: [PATCH] Add basic map camera controller

---
 .../Controller/MapCameraController.cpp        | 40 ++++++++++++++++++
 .../Controller/MapCameraController.hpp        | 42 +++++++++++++++++++
 2 files changed, 82 insertions(+)
 create mode 100644 openVulkanoCpp/Controller/MapCameraController.cpp
 create mode 100644 openVulkanoCpp/Controller/MapCameraController.hpp

diff --git a/openVulkanoCpp/Controller/MapCameraController.cpp b/openVulkanoCpp/Controller/MapCameraController.cpp
new file mode 100644
index 0000000..42150e3
--- /dev/null
+++ b/openVulkanoCpp/Controller/MapCameraController.cpp
@@ -0,0 +1,40 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include "MapCameraController.hpp"
+#include "Input/InputManager.hpp"
+#include "Scene/Camera.hpp"
+
+namespace OpenVulkano
+{
+	MapCameraController::MapCameraController(Scene::Camera* camera) : CameraController(camera)
+	{
+		auto input = Input::InputManager::GetInstance();
+		m_actionUp = input->GetAction("map_up");
+		m_actionSide = input->GetAction("map_side");
+	}
+
+	void MapCameraController::Tick()
+	{
+		if (!GetCamera()) return;
+		auto input = Input::InputManager::GetInstance();
+		Math::Vector3f_SIMD vec = m_dirUp * input->GetAxis(m_actionUp) + m_dirSide * input->GetAxis(m_actionSide);
+		vec /= GetCamera()->GetZoom();
+		vec /= GetCamera()->GetContentScaleFactor();
+
+		GetCamera()->SetMatrix(Math::Utils::translate(vec) * GetCamera()->GetMatrix());
+	}
+
+	void MapCameraController::SetDefaultKeybindings()
+	{
+		m_actionUp->BindKey(Input::InputKey::Controller::AXIS_LEFT_Y);
+		m_actionUp->BindKey(Input::InputKey::Touch::AXIS_PAN_Y);
+		m_actionUp->BindKey(Input::InputKey::Mouse::AXIS_Y);
+		m_actionSide->BindKey(Input::InputKey::Controller::AXIS_LEFT_X);
+		m_actionSide->BindKey(Input::InputKey::Touch::AXIS_PAN_X);
+		m_actionSide->BindKey(Input::InputKey::Mouse::AXIS_X);
+	}
+}
diff --git a/openVulkanoCpp/Controller/MapCameraController.hpp b/openVulkanoCpp/Controller/MapCameraController.hpp
new file mode 100644
index 0000000..803f18a
--- /dev/null
+++ b/openVulkanoCpp/Controller/MapCameraController.hpp
@@ -0,0 +1,42 @@
+/*
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include "CameraController.hpp"
+#include "Math/Math.hpp"
+
+namespace OpenVulkano
+{
+	namespace Input
+	{
+		class InputAction;
+	}
+
+	class MapCameraController final : public CameraController
+	{
+		Input::InputAction* m_actionSide;
+		Input::InputAction* m_actionUp;
+
+		Math::Vector3f_SIMD m_dirUp;
+		Math::Vector3f_SIMD m_dirSide;
+
+	public:
+		MapCameraController(Scene::Camera* camera = nullptr);
+
+		~MapCameraController() override = default;
+
+		void SetDir(const Math::Vector3f_SIMD& up, const Math::Vector3f_SIMD& side)
+		{
+			m_dirUp = up;
+			m_dirSide = side;
+		}
+
+		void Tick() override;
+
+		void SetDefaultKeybindings();
+	};
+}
\ No newline at end of file