From bfee7fe4aecd859cd7880f42d485a718b224d2f2 Mon Sep 17 00:00:00 2001
From: Nathan Mills <38995150+Quipyowert2@users.noreply.github.com>
Date: Thu, 10 Oct 2024 19:55:33 -0700
Subject: [PATCH] Prevent drawing on atlas once generated by making it
 readonly.

---
 libgag/include/SDLGraphicContext.h | 2 +-
 libgag/src/Sprite.cpp              | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/libgag/include/SDLGraphicContext.h b/libgag/include/SDLGraphicContext.h
index cc6ad107..2c42a2fb 100644
--- a/libgag/include/SDLGraphicContext.h
+++ b/libgag/include/SDLGraphicContext.h
@@ -440,7 +440,7 @@ namespace GAGCore
 		std::vector <float> texCoords;
 		unsigned int vbo;
 		unsigned int texCoordBuffer;
-		std::unique_ptr<DrawableSurface> atlas = nullptr;
+		std::unique_ptr<const DrawableSurface> atlas = nullptr;
 #endif
 		Color actColor;
 	
diff --git a/libgag/src/Sprite.cpp b/libgag/src/Sprite.cpp
index ffbec675..6cdef83a 100644
--- a/libgag/src/Sprite.cpp
+++ b/libgag/src/Sprite.cpp
@@ -134,7 +134,7 @@ namespace GAGCore
 		int tileHeight = images[0]->getH();
 		int sheetWidth = tileWidth * (static_cast<int>(sqrt(numImages)) + 1);
 		int sheetHeight = tileHeight * (static_cast<int>(sqrt(numImages)) + 1);
-		atlas = make_unique<DrawableSurface>(sheetWidth, sheetHeight);
+		std::unique_ptr<DrawableSurface> atlas = make_unique<DrawableSurface>(sheetWidth, sheetHeight);
 		int x = 0, y = 0;
 		for (auto image: images)
 		{
@@ -158,6 +158,7 @@ namespace GAGCore
 			image->sprite = this;
 			image->setRes(sheetWidth, sheetHeight);
 		}
+		this->atlas = std::move(atlas);
 		glGenBuffers(1, &vbo);
 		glGenBuffers(1, &texCoordBuffer);
 #endif