setup Makefile with raylib raygui deps

.gitignore

@@ -1,2 +1,3 @@
 build/
 *~
+*.o

Makefile

@@ -0,0 +1,16 @@
+CC = cc
+CFLAGS = -g -Wall -Iinclude
+SOURCES = $(wildcard src/*.c)
+OBJECTS = $(SOURCES:.c=.o)
+LDFLAGS = -lraylib
+HEADERS = \
+	include/raygui.h
+
+adhd: $(OBJECTS)
+	$(CC) $(CFLAGS) $^ -o $@ $(LDFLAGS)
+
+%.o: %.c $(HEADERS)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+clean:
+	rm -rf $(OBJECTS) adhd

src/main.c

@@ -1,6 +1,38 @@
 #include <stdio.h>
+#include <raygui.h>
+#include <raylib.h>
+
+#define WINDOW_HEIGHT 700
+#define WINDOW_WIDTH 500
+#define OVERLAY_HEIGHT 300
+#define OVERLAY_WIDTH 700
+
+void render_window() {
+  ClearBackground(RAYWHITE);
+  DrawFPS(WINDOW_WIDTH - 50, 10);
+
+  // draw a button for toggle mode
+}
+
+void render_overlay() {
+  ClearBackground(BLANK);
+  DrawFPS(OVERLAY_WIDTH - 50, 10);
+
+  // draw a button to toggle mode
+}
 
 int main(int argc, char *argv[]) {
   printf("Welcome to Flowy.adhd\n");
 
+  InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "Flowy.adhd");
+
+  while (!WindowShouldClose()) {
+    BeginDrawing();
+    render_window();
+    EndDrawing();
+  }
+
+  CloseWindow();
+
+  return 0;
 }