Jruby platform targeted in this gem

bin/roflbalt

@@ -2,4 +2,26 @@
 
 require "roflbalt"
 
-Game.new.run
+
+# JRuby doesn't play nice with STDIN.read_nonblock right now
+# see http://jira.codehaus.org/browse/JRUBY-5165
+# So for now, lets have a Control Panel for our jumping man!
+if RUBY_PLATFORM == "java"
+  if RUBY_VERSION == '1.8.7'
+    STDERR.puts <<WARNING
+WARNING: Your helo ain't going to look right in JRUBY and 1.8 mode.
+Try setting JRUBY_OPTS before your next rofl copter chase:
+  export JRUBY_OPTS==--1.9 
+
+Press enter to continue, or CTRL+C to quit
+WARNING
+  end
+  STDIN.gets
+
+  jruby_game_lib = File.expand_path("../lib", File.dirname(__FILE__)) + '/jruby_game.rb'
+  puts "JRuby detected - loading #{ jruby_game_lib }"
+  require jruby_game_lib
+  JRubyGame.new.run
+else
+  Game.new.run
+end

lib/jruby_game.rb

@@ -0,0 +1,47 @@
+require 'java'
+
+import javax.swing.JFrame
+import javax.swing.JLabel
+import java.awt.event.KeyListener
+import java.awt.Dimension
+
+CONTROL_WIDTH = 400
+CONTROL_HEIGHT = 400
+
+class JRubyGame < Game
+  def initialize
+    setup_frame
+    super
+  end
+
+  def setup_frame
+    @frame = JFrame.new("ROFL Control")
+    @frame.default_close_operation = JFrame::EXIT_ON_CLOSE
+    jlabel = JLabel.new("'q' to Quit, 'n' for New, 'Any Key' for jump!")
+    @frame.add jlabel
+    @frame.pack
+    @frame.set_size( Dimension.new( CONTROL_WIDTH, CONTROL_HEIGHT ) )
+    # Listen for keystrokes, play notes
+    @frame.add_key_listener KeyListener.impl { |name, event|
+      case name
+      when :keyPressed
+        @world.player.jump
+        if event.key_char == 113  # q
+          @frame.visible = false
+          @frame.dispose
+          @run = false
+        elsif event.key_char == 110  # n
+          reset
+        end
+      when :keyReleased
+      end
+    }
+    @frame.visible = true
+  end
+  def on_exit
+    @frame.visible = false
+    @frame.dispose
+    super
+  end
+end
+

lib/roflbalt.rb

@@ -4,6 +4,7 @@
 SCREEN_HEIGHT = 40
 
 class Game
+  attr_accessor :run, :world
   def initialize
     reset
   end
@@ -475,3 +476,5 @@ def char rx, ry, ticks
     " " # Roflcopter crashes from time to time..
   end
 end
+
+

roflbalt.gemspec

@@ -6,10 +6,11 @@ Gem::Specification.new do |gem|
   gem.description   = %q{ASCII side-scrolling game, with ANSI color!}
   gem.summary       = %q{Canabalt-inspired ASCII side-scroller for your terminal, with ANSI color!}
   gem.homepage      = "https://github.com/pda/roflbalt"
+  gem.platform      = 'jruby'
 
   gem.require_paths = %w{ lib }
   gem.executables   = %w{ roflbalt }
-  gem.files         = %w{ bin/roflbalt lib/roflbalt.rb README.md }
+  gem.files         = %w{ bin/roflbalt lib/roflbalt.rb lib/jruby_game.rb README.md }
   gem.name          = "roflbalt"
   gem.version       = "0.0.2"
 end