From 57a9b20449879efdc2fcaa881038ebfe9bdbec2a Mon Sep 17 00:00:00 2001
From: Camden Dixie O'Brien <cdo@wip.sh>
Date: Thu, 26 Dec 2024 15:34:22 +0000
Subject: [PATCH] Create basic SDL2 application

---
 CMakeLists.txt     |  3 +++
 README             |  4 ++++
 app/CMakeLists.txt |  8 ++++++++
 app/main.c         | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 61 insertions(+)
 create mode 100644 app/CMakeLists.txt
 create mode 100644 app/main.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9a5b240..326baeb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,7 +29,10 @@ add_custom_target(lint
   WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
 )
 
+find_package(SDL2 REQUIRED CONFIG REQUIRED COMPONENTS SDL2 SDL2main)
+
 add_subdirectory(engine)
+add_subdirectory(app)
 
 if (${TESTS})
   enable_testing()
diff --git a/README b/README
index 5f26f43..32c1edc 100644
--- a/README
+++ b/README
@@ -1,5 +1,9 @@
 							   2D GAME
 
+Dependencies:
+
+- SDL2 :: https://www.libsdl.org/
+
 The build is handled with CMake (version 3.10 or later):
 
 	cmake -B build
diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
new file mode 100644
index 0000000..ab763cb
--- /dev/null
+++ b/app/CMakeLists.txt
@@ -0,0 +1,8 @@
+add_executable(game
+  main.c
+)
+set_default_target_options(game)
+target_include_directories(game PUBLIC include)
+
+target_link_libraries(game
+  PRIVATE SDL2::SDL2 SDL2::SDL2main)
diff --git a/app/main.c b/app/main.c
new file mode 100644
index 0000000..1afc48b
--- /dev/null
+++ b/app/main.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) Camden Dixie O'Brien
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+#include <SDL2/SDL.h>
+#include <assert.h>
+
+#define TILESIZE 32
+#define WINWIDTH 30
+#define WINHEIGHT 20
+
+SDL_Window *window;
+SDL_Renderer *renderer;
+
+int main(void)
+{
+	int err = SDL_Init(SDL_INIT_VIDEO);
+	assert(0 == err);
+	window = SDL_CreateWindow(
+	    "2D Game", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED,
+	    TILESIZE * WINWIDTH, TILESIZE * WINHEIGHT, 0);
+	assert(NULL != window);
+	renderer = SDL_CreateRenderer(window, -1, 0);
+	assert(NULL != renderer);
+
+	SDL_Event event;
+	SDL_RenderClear(renderer);
+	while (1) {
+		SDL_PollEvent(&event);
+		switch (event.type) {
+		case SDL_QUIT:
+			goto quit;
+
+		default:
+			break;
+		}
+	}
+
+quit:
+	SDL_DestroyRenderer(renderer);
+	SDL_DestroyWindow(window);
+	SDL_Quit();
+
+	return 0;
+}