textgen: Generate CREDIT screen.

This is one of the screens of text shown between demos in the demo
loop. Generate this from the contents of a static text file. I
originally wanted to generate this programatically from the CREDITS
file but there are too many contributors to fit them all on the page.

graphics/text/Makefile

@@ -13,7 +13,7 @@ TEXTGEN_GRAPHICS = \
   m_mess.gif   m_mouse.gif  m_multi.gif  m_player.gif m_serial.gif \
   m_setup.gif  m_sound.gif  m_stat.gif   m_status.gif m_tcpip.gif  \
   m_versen.gif m_video.gif  m_wad.gif    m_wadopt.gif m_weap.gif   \
-  prboom.gif   helpttl.gif                                         \
+  prboom.gif   helpttl.gif  freettl.gif                            \
   m_ultra.gif  wibp1.gif    wibp2.gif    wibp3.gif    wibp4.gif    \
   wicolon.gif  wienter.gif  wif.gif      wifrgs.gif   wipcnt.gif   \
   wiminus.gif  wimstar.gif  wimstt.gif   wiostf.gif   wiosti.gif   \
@@ -37,7 +37,7 @@ TEXTGEN_GRAPHICS = \
   wilv33.gif   wilv34.gif   wilv35.gif   wilv36.gif   wilv37.gif   \
   wilv38.gif
 
-all: $(TEXTGEN_GRAPHICS) help.gif
+all: $(TEXTGEN_GRAPHICS) help.gif credit.gif
 
 # textgen creates multiple outputs, which is awkward to express in
 # make. Use a witness file (graphics.stamp) as suggested in the
@@ -126,6 +126,19 @@ help.gif: helpbg.png helptext2.png
 	    -draw 'image over 0,0 0,0 helptext2.png'     \
 	    help.gif
 
+credtext.png: freettl.gif credit.txt
+	python smtextgen credtext.png 320x200        \
+	   120,5  "file:freettl.gif"                \
+	   10,30  "include:credit.txt"
+
+credtext2.png: credtext.png
+	convert credtext.png -transparent '#00ffff' credtext2.png
+
+credit.gif: helpbg.png credtext2.png
+	convert helpbg.png                             \
+	    -draw 'image over 0,0 0,0 credtext2.png'   \
+	    credit.gif
+
 clean:
 	rm -f $(TEXTGEN_GRAPHICS) helpbg.png help.gif \
 	    helptext.png helptext2.png graphics.stamp *.pyc

graphics/text/config.py

@@ -109,6 +109,8 @@ blue_graphics = {
 red_graphics = {
 	# Title for the HELP/HELP1 screen:
 	'helpttl': 'Help',
+	# Title for CREDIT
+	'freettl': 'Freedoom',
 
 	'm_ngame': 'New Game',
 	'm_option': 'Options',

graphics/text/credit.txt

@@ -0,0 +1,20 @@
+Freedoom is a collaborative effort to
+create a complete free content game.
+It is the combined work of many, many
+different artists, musicians, level
+designers and programmers, more than is
+possible to list on this page alone.
+Thanks go to everyone who has contributed
+and helped to make Freedoom a reality.
+
+Freedoom is distributed as free software
+under the terms of the BSD license, and is
+under continual development and
+improvement. If you like the project and
+want to help make it better, visit the
+Freedoom website:
+
+        http://freedoom.github.io/
+
+Thanks for playing.
+

graphics/text/smtextgen

@@ -154,6 +154,11 @@ command_line = [
 ]
 
 for xy, string in args['strings']:
+	# Allow contents of a file to be included with special prefix:
+	if string.startswith('include:'):
+		with open(string[8:]) as f:
+			string = f.read()
+
 	# Allow special notation to indicate an image file to just draw
 	# rather than rendering a string.
 	if string.startswith('file:'):