From 6ad5d6987036d00c05a088c5eb6e97034d89b826 Mon Sep 17 00:00:00 2001
From: GeorgH93 <git@georgh93.eu>
Date: Mon, 7 Aug 2023 21:18:19 +0200
Subject: [PATCH] Add GridDrawable

---
 openVulkanoCpp/Scene/Prefabs/GridDrawable.cpp | 22 ++++++++++++++++
 openVulkanoCpp/Scene/Prefabs/GridDrawable.hpp | 25 +++++++++++++++++++
 .../Scene/GridDrawableVulkanEncoder.cpp       | 24 ++++++++++++++++++
 3 files changed, 71 insertions(+)
 create mode 100644 openVulkanoCpp/Scene/Prefabs/GridDrawable.cpp
 create mode 100644 openVulkanoCpp/Scene/Prefabs/GridDrawable.hpp
 create mode 100644 openVulkanoCpp/Vulkan/Scene/GridDrawableVulkanEncoder.cpp

diff --git a/openVulkanoCpp/Scene/Prefabs/GridDrawable.cpp b/openVulkanoCpp/Scene/Prefabs/GridDrawable.cpp
new file mode 100644
index 0000000..1dffff4
--- /dev/null
+++ b/openVulkanoCpp/Scene/Prefabs/GridDrawable.cpp
@@ -0,0 +1,22 @@
+/*
+ * 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 "GridDrawable.hpp"
+
+namespace openVulkanoCpp::Scene
+{
+	GridDrawable::GridDrawable()
+		: Drawable(DrawEncoder::GetDrawEncoder<GridDrawable>(), DrawPhase::POST)
+	{
+		m_shader.cullMode = CullMode::NONE;
+		m_shader.topology = Topology::TRIANGLE_STRIP;
+		m_shader.AddShaderProgram(ShaderProgramType::VERTEX, "Shader/grid");
+		m_shader.AddShaderProgram(ShaderProgramType::FRAGMENT, "Shader/grid");
+		m_shader.alphaBlend = true;
+
+		SetShader(&m_shader);
+	}
+}
\ No newline at end of file
diff --git a/openVulkanoCpp/Scene/Prefabs/GridDrawable.hpp b/openVulkanoCpp/Scene/Prefabs/GridDrawable.hpp
new file mode 100644
index 0000000..615f83d
--- /dev/null
+++ b/openVulkanoCpp/Scene/Prefabs/GridDrawable.hpp
@@ -0,0 +1,25 @@
+/*
+ * 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 "Scene/Drawable.hpp"
+#include "Scene/Shader.hpp"
+
+namespace openVulkanoCpp::Scene
+{
+	class GridDrawable : public Drawable
+	{
+		Shader m_shader;
+
+	public:
+		GridDrawable();
+
+		[[nodiscard]] Shader& GetShader() { return m_shader; }
+
+		[[nodiscard]] Drawable* Copy() override { return new GridDrawable(); }
+	};
+}
\ No newline at end of file
diff --git a/openVulkanoCpp/Vulkan/Scene/GridDrawableVulkanEncoder.cpp b/openVulkanoCpp/Vulkan/Scene/GridDrawableVulkanEncoder.cpp
new file mode 100644
index 0000000..386390e
--- /dev/null
+++ b/openVulkanoCpp/Vulkan/Scene/GridDrawableVulkanEncoder.cpp
@@ -0,0 +1,24 @@
+/*
+ * 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 "Scene/Prefabs/GridDrawable.hpp"
+#include "VulkanGeometry.hpp"
+#include "Vulkan/VulkanDrawContext.hpp"
+
+using namespace openVulkanoCpp::Scene;
+
+namespace openVulkanoCpp::Vulkan
+{
+	void EncodeGridDrawable(Drawable* instance, Vulkan::VulkanDrawContext* drawContext)
+	{
+		drawContext->commandBuffer.draw(4, 1, 0, 0);
+	}
+}
+
+namespace
+{
+	void* gridDrawableVulkanEncoderReg = DrawEncoder::RegisterVulkanEncodeFunction<GridDrawable>(&openVulkanoCpp::Vulkan::EncodeGridDrawable);
+}
\ No newline at end of file