Add SLIDE_RIGHT

lib/slide_helper.rb

@@ -21,6 +21,7 @@
 # SLIDE_SCALE_LEFT allows the distance left to be scaled (e.g. half
 # normal distance)
 #
+# !SLIDE_RIGHT args
 # !SLIDE_LEFT args
 # !SLIDE_DOWN args
 # !SLIDE_SCALE_LEFT .5 args
@@ -199,6 +200,8 @@ module SlideHelper
                 output += impress_scale_relative(args) + "\n"
             when '!SLIDE_HERE'
                 output += impress_make_slide(args) + "\n"
+            when '!SLIDE_RIGHT'
+                output += impress_slide_right(args) + "\n"
             when '!SLIDE_LEFT'
                 output += impress_slide_left(args) + "\n"
             when '!SLIDE_DOWN'
@@ -277,6 +280,11 @@ module SlideHelper
         ""
     end
 
+    def impress_slide_right(args)
+        @@pos.x -= impress_horiz_mov_unit()
+        impress_make_slide(args)
+    end
+
     def impress_slide_left(args)
         @@pos.x += impress_horiz_mov_unit()
         impress_make_slide(args)