init

Makefile

@@ -0,0 +1,18 @@
+CC=gcc
+CFLAGS=-O1 -DDEBUG -g -ggdb -std=c23
+LIBS=`pkg-config sdl3 --cflags --libs`
+
+OBJ = main.o
+
+all: mobiground
+
+%.o: %.c # Add all .o and .c files to compiler
+	$(CC) -c -o $@ $< $(CFLAGS) # compile, generate, all output, prerequisite implicit rule, compile flags.
+
+mobiground: $(OBJ)
+	$(CC) -o $@ $^ $(CFLAGS) $(LIBS)
+
+.PHONY: clean
+
+clean:
+	rm -f *.o mobiground

main.c

@@ -0,0 +1,82 @@
+#include <stdio.h> // for fprintf()
+#include <stdlib.h> // for exit()
+
+#include <SDL3/SDL.h>
+#include <SDL3/SDL_main.h> // only include this one in the source file with main()!
+
+
+SDL_Window* window = NULL;
+SDL_Renderer* renderer = NULL;
+
+static void panic ( const char *text ) __attribute__((noreturn));
+
+void panic ( const char *text )
+{
+  fprintf(stderr, "ERROR: %s. %s\n", text, SDL_GetError());
+  SDL_DestroyRenderer(renderer);
+  SDL_DestroyWindow(window);
+  SDL_Quit();
+  exit(1);
+}
+
+int main( int argc, char* argv[] )
+{
+    const int WIDTH = 640;
+    const int HEIGHT = 480;
+    bool loopShouldStop = false;
+
+    if (!SDL_Init(SDL_INIT_VIDEO))
+    {
+        panic("SDL_Init failed");
+    }
+
+    window = SDL_CreateWindow("Hello SDL", WIDTH, HEIGHT, 0);
+    if (!window) 
+    {
+      panic("SDL_CreateWindow");
+    }
+
+    renderer = SDL_CreateRenderer(window, 0);
+    if (!renderer) 
+    {
+    panic("SDL_CreateRenderer");
+    }
+
+    SDL_SetRenderDrawColor(renderer, 255, 64, 0, 255);
+    SDL_RenderClear(renderer);
+    SDL_RenderPresent(renderer);
+
+    while (!loopShouldStop)
+    {
+        SDL_Event e;
+        SDL_zero(e);
+        while (SDL_PollEvent(&e))
+        {
+            switch (e.type)
+            {
+                case SDL_EVENT_KEY_DOWN:
+                    switch (e.key.mod)
+                    {
+                        case SDL_KMOD_LCTRL:
+                            switch (e.key.key)
+                            {
+                                case SDLK_Q:
+                                    SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_INFORMATION, "Hello OOPS!", "OOPS!", window);
+                                    break;
+                            }
+                            break;
+                    }
+                    break;
+                case SDL_EVENT_QUIT:
+                    loopShouldStop = true;
+                    break;
+                default:
+                    break;
+            }
+        }
+    }
+    SDL_DestroyRenderer(renderer);
+    SDL_DestroyWindow(window);
+    SDL_Quit();
+    exit(0);
+}