Add waf buildscripts, add updated game_launch

engine/wscript

@@ -0,0 +1,80 @@
+#! /usr/bin/env python
+# encoding: utf-8
+# mittorn, 2018
+
+from waflib import Logs
+import os
+
+top = '.'
+
+def options(opt):
+	# stub
+	return
+
+def configure(conf):
+	# check for dedicated server build
+	if conf.options.DEDICATED:
+		conf.check( lib='rt' )
+		conf.env.append_unique('DEFINES', 'SINGLE_BINARY')
+		conf.env.append_unique('DEFINES', 'XASH_DEDICATED')
+	else:
+		# TODO: add way to specify SDL2 path, move to separate function
+		try:
+			conf.check_cfg(
+				path='sdl2-config', 
+				args='--cflags --libs', 
+				package='', 
+				msg='Checking for SDL2', 
+				uselib_store='SDL2')
+		except conf.errors.ConfigurationError:
+			conf.fatal('SDL2 not availiable! If you want to build dedicated server, specify --dedicated')
+		conf.env.append_unique('DEFINES', 'XASH_SDL')
+
+def get_subproject_name(ctx):
+	return os.path.basename(os.path.realpath(str(ctx.path)))
+
+def build(bld):
+	bld.load_envs()
+	bld.env = bld.all_envs[get_subproject_name(bld)]
+
+	# basic build: dedicated only, no dependencies
+	if bld.env.DEST_OS != 'win32':
+		libs = [ 'DL', 'M', 'PTHREAD' ]
+	
+	source = bld.path.ant_glob([
+		'common/*.c',
+		'common/imagelib/*.c',
+		'common/soundlib/*.c',
+		'common/soundlib/libmpg/*.c',
+		'server/*.c'])
+
+	# add client files and sdl2 library
+	if not bld.env.DEDICATED:
+		libs.append( 'SDL2' )
+		source += bld.path.ant_glob([
+			'client/*.c',
+			'client/vgui/*.c',
+			'client/avi/*.c',
+			'platform/sdl/*.c'])
+	else:
+		if(bld.env.DEST_OS == 'linux'):
+			libs.append('RT')
+	
+	includes = ['common', 'server', 'client', 'client/vgui', '.', '../common', '../pm_shared' ]
+
+	if(bld.env.SINGLE_BINARY):
+		bld(
+			source   = source,
+			target   = 'xash',
+			features = 'c cprogram',
+			includes = includes,
+			use      = libs
+		)
+	else:
+		bld.shlib(
+			source   = source,
+			target   = 'xash',
+			features = 'c',
+			includes = includes,
+			use      = libs
+		)