From 3b6eac356b50210937ac893e807f1716732ae606 Mon Sep 17 00:00:00 2001
From: Antoine Pilote <antoinepilote1@hotmail.com>
Date: Thu, 6 Jul 2023 18:10:14 -0400
Subject: [PATCH] Added ReadPixel method to framebuffers

---
 Nuake/src/Rendering/Buffers/Framebuffer.cpp | 8 ++++++++
 Nuake/src/Rendering/Buffers/Framebuffer.h   | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/Nuake/src/Rendering/Buffers/Framebuffer.cpp b/Nuake/src/Rendering/Buffers/Framebuffer.cpp
index 1b6f5b1b..0c559944 100644
--- a/Nuake/src/Rendering/Buffers/Framebuffer.cpp
+++ b/Nuake/src/Rendering/Buffers/Framebuffer.cpp
@@ -126,6 +126,14 @@ namespace Nuake
 		glBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
 	}
 
+	int FrameBuffer::ReadPixel(uint32_t attachment, const Vector2 coords)
+	{
+		glReadBuffer(GL_COLOR_ATTACHMENT0 + attachment);
+		int pixelData;
+		glReadPixels((int)coords.x, (int)coords.y, 1, 1, GL_RED_INTEGER, GL_INT, &pixelData);
+		return pixelData;
+	}
+
 	void FrameBuffer::SetDrawBuffer(GLenum draw)
 	{
 		Bind();
diff --git a/Nuake/src/Rendering/Buffers/Framebuffer.h b/Nuake/src/Rendering/Buffers/Framebuffer.h
index ead1fe22..b2eb76a8 100644
--- a/Nuake/src/Rendering/Buffers/Framebuffer.h
+++ b/Nuake/src/Rendering/Buffers/Framebuffer.h
@@ -38,6 +38,8 @@ namespace Nuake
 		void SetSize(const Vector2& size) { m_Size = size; }
 		void UpdateSize(Vector2 size);
 
+
+		int ReadPixel(uint32_t attachment, const Vector2 coords);
 		void SetDrawBuffer(GLenum draw);
 		void SetReadBuffer(GLenum read);
 	};