From 8becf9e314eee18aace11783d13f65f3389d3897 Mon Sep 17 00:00:00 2001
From: Benedikt Galbavy <if22b082@technikum-wien.at>
Date: Mon, 8 Jan 2024 19:47:39 +0100
Subject: [PATCH] added more libaries

---
 .gitmodules    |  4 ++++
 CMakeLists.txt | 18 +++++++++++++++++-
 lib/libpng     |  1 +
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 160000 lib/libpng

diff --git a/.gitmodules b/.gitmodules
index fcf267e..f87c05c 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -6,3 +6,7 @@
 	path = lib/SDL_image
 	url = https://github.com/libsdl-org/SDL_image.git
 	branch = release-2.8.x
+[submodule "lib/libpng"]
+	path = lib/libpng
+	url = https://github.com/glennrp/libpng.git
+	branch = libpng16
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 82ef175..82b3b71 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,15 +5,31 @@ project(SDL_Minigame)
 set(CMAKE_CXX_STANDARD 20)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
+# libpng stuff
+set(PNG_SHARED ON CACHE BOOL "" FORCE)
+set(PNG_STATIC OFF CACHE BOOL "" FORCE)
+set(PNG_EXECUTABLES OFF CACHE BOOL "" FORCE) # we only want lib
+set(PNG_TESTS OFF CACHE BOOL "" FORCE) # we only want lib
+set(SKIP_INSTALL_ALL OFF CACHE BOOL "" FORCE) # we only want lib
+
+include_directories(libpng)
+
 add_subdirectory(lib/SDL)
 add_subdirectory(lib/SDL_image)
+add_subdirectory(lib/libpng)
 
 find_package(SDL2 REQUIRED CONFIG REQUIRED COMPONENTS SDL2)
 find_package(SDL2 REQUIRED CONFIG COMPONENTS SDL2main)
 find_package(SDL_image REQUIRED)
 
+find_package(ZLIB REQUIRED)
+
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/libpng)
+
 file(GLOB_RECURSE SOURCES src/*.cpp)
 add_executable(game ${SOURCES})
 
 target_link_libraries(game PRIVATE SDL2::SDL2main)
-target_link_libraries(game PRIVATE SDL2::SDL2 SDL2_image ${SDL2_LIBRARIES} ${SDL_IMAGE_LIBRARIES})
\ No newline at end of file
+target_link_libraries(game PRIVATE SDL2::SDL2 SDL2_image ${SDL2_LIBRARIES} ${SDL_IMAGE_LIBRARIES})
+target_link_libraries(game PRIVATE ZLIB::ZLIB)
+target_link_libraries(game PRIVATE png)
\ No newline at end of file
diff --git a/lib/libpng b/lib/libpng
new file mode 160000
index 0000000..71b9b5e
--- /dev/null
+++ b/lib/libpng
@@ -0,0 +1 @@
+Subproject commit 71b9b5e16ef751d973a3935284382bc344ff9941