Create basic SDL2 application

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)

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;
+}