Add interactive chat client example

examples/09_interactive_terminal_client.rb

@@ -0,0 +1,67 @@
+#!/usr/bin/env ruby
+# frozen_string_literal: true
+
+require_relative '../lib/teeworlds_client'
+
+args = { verbose: false, ip: nil, port: nil }
+
+ARGV.each do |arg|
+  if ['--help', '-h'].include?(arg)
+    puts 'usage: teeworlds.rb [OPTIONS..] [host] [port]'
+    puts 'options:'
+    puts '  --help|-h        show this help'
+    puts '  --verbose|-v     verbose output'
+    puts 'example:'
+    puts '  teeworlds.rb --verbose localhost 8303'
+    exit(0)
+  elsif ['--verbose', '-v'].include?(arg)
+    args[:verbose] = true
+  elsif args[:ip].nil?
+    args[:ip] = arg
+  elsif args[:port].nil?
+    args[:port] = arg.to_i
+  end
+end
+
+args[:ip] = args[:ip] || '127.0.0.1'
+args[:port] = args[:port] || 8303
+
+client = TeeworldsClient.new(verbose: args[:verbose])
+
+client.on_chat do |_, msg|
+  puts "[chat] #{msg}"
+end
+
+client.on_client_info do |ctx|
+  puts "'#{ctx.data[:player].name}' joined the game"
+end
+
+client.on_client_drop do |ctx|
+  unless ctx.data[:silent]
+    reason = ctx.data[:reason] ? " (#{ctx.data[:reason]})" : ''
+    puts "'#{ctx.data[:player].name}' left the game#{reason}"
+  end
+end
+
+Signal.trap('INT') do
+  client.disconnect
+  exit
+end
+
+# connect and detach thread
+client.connect(args[:ip], args[:port], detach: true)
+
+def on_input(client, input)
+  case input
+  when ':quit'
+    return false
+  else
+    client.send_chat(input)
+  end
+  true
+end
+
+loop do
+  input = $stdin.gets.chomp
+  break unless on_input(client, input)
+end