From ec2e197c9342b04cae6ef24cb293eabe57100dc8 Mon Sep 17 00:00:00 2001
From: scratko <m@scratko.xyz>
Date: Fri, 22 Nov 2024 02:31:26 +0300
Subject: Program termination

Termination of the program while the computer is solving the algorithm
(by esc key)
---
 main.cpp               | 18 +++++++++++++++++-
 solution_algorithm.cpp |  1 +
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/main.cpp b/main.cpp
index d1646e1..539130d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -9,10 +9,26 @@
 #include "gameplay.hpp"
 #include "menu_callbacks.hpp"
 
+class MainWindow : public Fl_Window {
+public:
+    MainWindow(int w, int h, const char *title) : Fl_Window(w, h, title) {}
+    /*
+     * Ending program by esc key while the computer is solving a puzzle
+     */
+    int handle(int event) {
+        if(event == FL_KEYDOWN && Fl::event_length() != 0 &&
+                                                Fl::event_key() == FL_Escape)
+        {
+               exit(0);
+        }
+        return Fl_Window::handle(event);
+    }
+};
+
 int main()
 {
     srand(time(nullptr));
-    Fl_Window *win = new Fl_Window(320, 355, "Picture puzzle");
+    MainWindow *win = new MainWindow(320, 355, "Picture puzzle");
     GameParams *params = GameParams::SetUpParams(win);
     Fl_Sys_Menu_Bar *sys_bar = new Fl_Sys_Menu_Bar(0, 0, 355, 20, nullptr);
     sys_bar->add("&File/&New game", nullptr, new_game_callback, params);
diff --git a/solution_algorithm.cpp b/solution_algorithm.cpp
index f0b7861..d96374b 100644
--- a/solution_algorithm.cpp
+++ b/solution_algorithm.cpp
@@ -178,6 +178,7 @@ void ASearch::ShowSolution(Node *goal)
         (*puzzle_pos)->position(goal->state[i].x, goal->state[i].y);
         gp->win->redraw();
         Fl::flush();
+        Fl::check();
         usleep(40000);
     }
 }
-- 
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