update: use Terminal proxy

exe/firew0rks

@@ -1,22 +1,31 @@
 #!/usr/bin/env ruby
-require_relative "../lib/firew0rks.rb"
-require 'reline'
+require_relative "../lib/firew0rks"
+require_relative "../lib/firew0rks/terminal"
 
-terminal = Reline::ANSI.new
-terminal.hide_cursor
+def setup
+  Terminal.open_buffer
+  Terminal.hide_cursor
+  Terminal.clear_screen
+end
+
+def clean_up
+  Terminal.close_buffer
+  Terminal.clear_screen
+  Terminal.show_cursor
+end
 
 trap("INT") {
-  terminal.show_cursor
+  clean_up
   puts ""
   puts "Bye."
   exit 0
 }
 
-
 begin
+  setup
   Fireworks.new.run
 rescue => error
   puts error
 ensure
-  terminal.show_cursor
+  clean_up
 end

lib/firew0rks.rb

@@ -3,6 +3,7 @@
 require_relative "firew0rks/version"
 require_relative "firew0rks/frame"
 require_relative "firew0rks/error"
+require_relative "firew0rks/terminal"
 
 
 class Fireworks
@@ -14,7 +15,7 @@ def initialize
 
 
   def clear_screen
-    $stdout.clear_screen
+    Terminal.clear_buffer
   end
 
   def init_screen
@@ -27,7 +28,7 @@ def render
         if !@first_frame
           $stdout.print @backspace_adjust
         end
-
+        clear_screen
         $stdout.print content
         @first_frame = false
         sleep(0.05)

lib/firew0rks/terminal.rb

@@ -0,0 +1,34 @@
+# ANSI_escape_code
+# Ref: https://xn--rpa.cc/irl/term.html
+# https://en.wikipedia.org/wiki/ANSI_escape_code#CSIsection
+
+class Terminal
+  class << self
+
+    def clear_buffer
+      print "\x1b[3J"
+    end
+
+    def clear_screen
+      print "\x1b[2J"
+    end
+
+    def hide_cursor
+      print "\x1b[?25l"
+    end
+
+    def show_cursor
+      print "\x1b[?25h"
+    end
+
+    def open_buffer
+      # 打开特殊缓存
+      print "\x1b[?1049h"
+    end
+
+    def close_buffer
+      # 关闭特殊缓存
+      print "\x1b[?1049l"
+    end
+  end
+end