#include <gtk gtk.h=""></gtk>

const double pi = 3.141592653589793;

GtkWidget *window;

GtkWidget *fixed;

GtkWidget *shape;

gboolean play = TRUE;

gboolean hidden = FALSE;

int x = 58;

int y = 75;

double mouse_x = 0.0;

double mouse_y = 0.0;

gboolean timeout(gpointer data) {

  if (play) {

    int w, h;

    gtk_widget_get_size_request(shape, &w, &h);

    if (x + w/2 < mouse_x) x += 5;

    if (x + w/2 > mouse_x) x -= 5;

    if (y + h/2 < mouse_y) y += 5;

    if (y + h/2 > mouse_y) y -= 5;

    gtk_fixed_move(GTK_FIXED(fixed), shape, x, y);

  }

  return TRUE;

}

gboolean restart_timeout(gpointer data) {

  play = TRUE;

  gdk_window_set_cursor(gtk_widget_get_window(window), NULL);

  gtk_widget_queue_draw(shape);

  return FALSE;

}

gboolean shape_draw(GtkWidget *widget, cairo_t *cr, gpointer data) {

  int w, h;

  gtk_widget_get_size_request(widget, &w, &h);

  cairo_set_source_rgba(cr, 0, 0, 1, 1);

  cairo_fill(cr);

  cairo_arc(cr, 10, 10, 10, -pi, -pi/2);

  cairo_line_to(cr, w-10, 0);

  cairo_arc(cr, w-10, 10, 10, -pi/2, 0);

  cairo_line_to(cr, w, h-10);

  cairo_arc(cr, w-10, h-10, 10, 0, pi/2);

  cairo_line_to(cr, 10, h);

  cairo_arc(cr, 10, h-10, 10, pi/2, pi);

  cairo_line_to(cr, 0, 10);

  if (play) cairo_set_source_rgba(cr, 1, 1, 1, 1);

       else cairo_set_source_rgba(cr, 1, 0, 0, 1);

  cairo_fill_preserve(cr);

  cairo_set_source_rgba(cr, 0, 0, 0, 1);

  cairo_stroke(cr);

  return TRUE;

}

gboolean shape_motion(GtkWidget *widget, GdkEventMotion *event, gpointer data) {

  play = FALSE;

  GdkCursor *cursor = gdk_cursor_new_from_name(gtk_widget_get_display(widget), "none");

  gdk_window_set_cursor(gtk_widget_get_window(window), cursor);

  g_object_unref(cursor);

  gtk_widget_queue_draw(shape);

  g_timeout_add(500, restart_timeout, NULL);

  return TRUE;

}

gboolean window_motion(GtkWidget *widget, GdkEventMotion *event, gpointer data) {

  if (!hidden) {

    mouse_x = event->x;

    mouse_y = event->y;

  }

  return TRUE;

}

gboolean shelter_enter(GtkWidget *widget, GdkEvent *event, gpointer data) {

  hidden = TRUE;

  return TRUE;

}

gboolean shelter_leave(GtkWidget *widget, GdkEvent *event, gpointer data) {

  hidden = FALSE;

  return TRUE;

}

void activate(GtkApplication* app, gpointer data) {

  window = gtk_application_window_new(app);

  g_signal_connect(window, "motion-notify-event", G_CALLBACK(window_motion), NULL);

  gtk_widget_add_events(window, GDK_POINTER_MOTION_MASK);

  gtk_window_set_default_size(GTK_WINDOW(window), 700, 500);

  fixed = gtk_fixed_new();

  gtk_container_add(GTK_CONTAINER(window), fixed);

  shape = gtk_drawing_area_new();

  g_signal_connect(shape, "draw", G_CALLBACK(shape_draw), NULL);

  g_signal_connect(shape, "motion-notify-event", G_CALLBACK(shape_motion), NULL);

  gtk_widget_add_events(shape, GDK_POINTER_MOTION_MASK);

  gtk_widget_set_size_request(shape, 86, 61);

  gtk_fixed_put(GTK_FIXED(fixed), shape, x, y);

  GtkWidget *button1 = gtk_button_new_with_label("Sweet Home");

  g_signal_connect(button1, "enter-notify-event", G_CALLBACK(shelter_enter), NULL);

  g_signal_connect(button1, "leave-notify-event", G_CALLBACK(shelter_leave), NULL);

  gtk_widget_add_events(button1, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);

  gtk_widget_set_size_request(button1, 249, 154);

  gtk_fixed_put(GTK_FIXED(fixed), button1, 48, 296);

  GtkWidget *button2 = gtk_button_new_with_label("Another Safe Place");

  g_signal_connect(button2, "enter-notify-event", G_CALLBACK(shelter_enter), NULL);

  g_signal_connect(button2, "leave-notify-event", G_CALLBACK(shelter_leave), NULL);

  gtk_widget_add_events(button2, GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK);

  gtk_widget_set_size_request(button2, 216, 131);

  gtk_fixed_put(GTK_FIXED(fixed), button2, 344, 131);

  gtk_widget_show_all(window);

  g_timeout_add(10, timeout, NULL);

}

int main(int argc, char **argv) {

  GtkApplication *application = gtk_application_new(NULL, 0);

  g_signal_connect(application, "activate", G_CALLBACK(activate), NULL);

  int status = g_application_run(G_APPLICATION(application), argc, argv);

  g_object_unref(application);

  return status;

}