Add current SDL2 port with TODOs

CMakeLists.txt

@@ -46,8 +46,7 @@ target_include_directories(iniparser
 # alex4
 
 add_executable(alex4
-	src/main.c
-	src/main.h
+	src/alex4.h
 	src/actor.c
 	src/actor.h
 	src/bullet.c
@@ -76,12 +75,14 @@ add_executable(alex4
 	src/token.h
 	src/unix.c
 	src/unix.h
-	src/sdl_wrapper.c
-	src/sdl_wrapper.h
 	src/sound.c
 	src/sound.h
 	src/misc.c
 	src/misc.h
+	src/main.c
+	src/main.h
+	src/sdl_port.c
+	src/sdl_port.h
 )
 
 # optional

TODO.md

@@ -0,0 +1,10 @@
+# TODO
+
+- migrate `set_display_switch_*` functions, pause when focus lost
+- sin/cos tables, fixtoi, itofix
+  - custom ending is broken
+  - pointer in menu does not wobble
+- keyboard polling
+- gamepad support
+- possible memleaks in data loading/unloading
+- masked_blit/blit do not make a difference in transparency

src/alex4.h

@@ -0,0 +1,38 @@
+/**************************************************************
+ *         _____    __                       _____            *
+ *        /  _  \  |  |    ____  ___  ___   /  |  |           *
+ *       /  /_\  \ |  |  _/ __ \ \  \/  /  /   |  |_          *
+ *      /    |    \|  |__\  ___/  >    <  /    ^   /          *
+ *      \____|__  /|____/ \___  >/__/\_ \ \____   |           *
+ *              \/            \/       \/      |__|           *
+ *                                                            *
+ **************************************************************
+ *    (c) Free Lunch Design 2003                              *
+ *    by Johan Peitz - http://www.freelunchdesign.com         *
+ *    SDL2 port by carstene1ns - https:/f4ke.de/dev/alex4     *
+ **************************************************************
+ *    This source code is released under the The GNU          *
+ *    General Public License (GPL). Please refer to the       *
+ *    document license.txt in the source directory or         *
+ *    http://www.gnu.org for license information.             *
+ **************************************************************/
+
+#ifndef ALEX4_H
+#define ALEX4_H
+
+// version string
+#define GAME_TITLE_STR "Alex the Allegator 4"
+#define GAME_VERSION_STR "v1.3"
+
+#ifndef DATADIR
+#define DATADIR "./"
+#endif
+
+// debug stuff
+//#define SHOW_TILES
+//#define NO_SOUND
+//#define DEBUG_SOUND
+//#define NO_INTRO
+//#define NO_CREDITS
+
+#endif