Added to_h (to hash) method to Vector, Text now tries to convert given text to string instead of assuming it is a string

lib/cyberarm_engine/lib/vector.rb

@@ -160,5 +160,9 @@ module CyberarmEngine
     def to_s
       "X: #{@x}, Y: #{@y}, Z: #{@z}, Weight: #{@weight}"
     end
+
+    def to_h
+      {x: @x, y: @y, z: @z, weight: @weight}
+    end
   end
 end

lib/cyberarm_engine/objects/text.rb

@@ -6,7 +6,7 @@ module CyberarmEngine
     attr_reader :text, :textobject
 
     def initialize(text, options={})
-      @text = text || ""
+      @text = text.to_s || ""
       @options = options
       @size = options[:size] || 18
       @font = options[:font] || "sans-serif"#Gosu.default_font_name