From c86a191aa7672d72364161d2ad8f73350a35092d Mon Sep 17 00:00:00 2001
From: Gwenhael Le Moine <gwenhael.le.moine@gmail.com>
Date: Wed, 14 Sep 2022 15:59:19 +0200
Subject: [PATCH] fully working ruby/ncurses version

---
 myhunt.rb | 126 +++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 91 insertions(+), 35 deletions(-)

diff --git a/myhunt.rb b/myhunt.rb
index b70394e..89152d2 100755
--- a/myhunt.rb
+++ b/myhunt.rb
@@ -1,5 +1,7 @@
 #!/usr/bin/env ruby
 
+require 'curses'
+
 module MyHunt
   class Cell
     attr_accessor :mine,
@@ -33,7 +35,6 @@ module MyHunt
 
       @width.times do |x|
         @height.times do |y|
-          puts "(#{x}, #{y})"
           @field[[x, y]] = Cell.new( open: x.zero? && y.zero? )
         end
       end
@@ -49,24 +50,6 @@ module MyHunt
       end
     end
 
-    def display
-      puts "nearby: #{count_nearby_mines}"
-      @height.times do |y|
-        @width.times do |x|
-          if [@explorer_x, @explorer_y] == [x, y]
-            putc 'o'
-          elsif [@width, @height] == [x + 1, y + 1]
-            putc '_'
-          elsif @field[[x, y]].open
-            putc @field[[x, y]].mine ? '*' : ' '
-          else
-            putc '█'
-          end
-        end
-        putc "\n"
-      end
-    end
-
     def update_explorer_location( direction )
       case direction
       when 'up'
@@ -103,15 +86,13 @@ module MyHunt
     def move( direction )
       update_explorer_location( direction )
 
-      if @explorer_x == (@width - 1) && @explorer_y == (@height - 1)
-        puts 'Victory'
-      elsif @field[[@explorer_x, @explorer_y]].explore
-        puts 'Blown up'
-      end
+      { dead: @field[[@explorer_x, @explorer_y]].explore,
+        victory: @explorer_x == (@width - 1) && @explorer_y == (@height - 1) }
     end
 
     def count_nearby_mines
       counter = 0
+
       [@explorer_x - 1, @explorer_x, @explorer_x + 1].each do |x|
         [@explorer_y - 1, @explorer_y, @explorer_y + 1].each do |y|
           next if x.negative?
@@ -120,25 +101,100 @@ module MyHunt
           next if y == @height
           next if x == @explorer_x && y == @explorer_y
 
-          puts "(#{x}, #{y})"
-
           counter += 1 if @field[[x, y]].mine
         end
       end
 
       counter
     end
-
-    def debug
-      @height.times { move('down-right') }
-      move( 'right' )
-      @height.times { move('up-right') }
-    end
   end
 end
 
 field = MyHunt::Board.new
 
-field.display
-field.debug
-field.display
+def display_curses( field, state = { dead: false, victory: false } )
+  Curses.setpos 0, 0
+
+  if state[:dead]
+    Curses.addstr 'You died! :('
+  elsif state[:victory]
+    Curses.addstr 'You won!! :)'
+  else
+    Curses.addstr "nearby: #{field.count_nearby_mines}"
+  end
+
+  field.height.times do |y|
+    field.width.times do |x|
+      Curses.setpos y + 2, x
+      if [field.explorer_x, field.explorer_y] == [x, y]
+        Curses.addch 'o'
+      elsif [field.width, field.height] == [x + 1, y + 1]
+        Curses.addch '_'
+      elsif field.field[[x, y]].open
+        Curses.addch field.field[[x, y]].mine ? '*' : ' '
+      else
+        Curses.addch 'H'
+      end
+    end
+  end
+
+  Curses.refresh
+end
+
+Curses.init_screen
+Curses.cbreak
+Curses.noecho
+Curses.stdscr.keypad = true
+at_exit do
+  Curses.close_screen
+end
+finished = false
+
+display_curses( field )
+
+loop do
+  direction = ''
+  ch = Curses.getch
+  if finished
+    begin
+      case ch
+      when 'r'
+        field = MyHunt::Board.new
+        finished = false
+      else
+        break
+      end
+    rescue Curses::RequestDeniedError
+      'prout'
+    end
+  else
+    begin
+      case ch
+      when '1'
+        direction = 'down-left'
+      when '2', Curses::KEY_DOWN
+        direction = 'down'
+      when '3'
+        direction = 'down-right'
+      when '4', Curses::KEY_LEFT
+        direction = 'left'
+      when '6', Curses::KEY_RIGHT
+        direction = 'right'
+      when '7'
+        direction = 'up-left'
+      when '8', Curses::KEY_UP
+        direction = 'up'
+      when '9'
+        direction = 'up-right'
+      when 'q'
+        break
+      end
+    rescue Curses::RequestDeniedError
+      'prout'
+    end
+  end
+
+  state = field.move( direction )
+  finished = state[:dead] || state[:victory]
+  display_curses( field, state )
+end