zephyrdoom, doom: Clean implementation sources

IMPORTANT: The commit does not change functionality of the code!

The commit contains the following changes:
- Clean up of redundant/deprecated comments;
- Clean up of redundant whitespaces and new lines;
- Fix of spacing within lines;
- Unify C comments to C89 and C98 code structure (/**/ instead of //);
- Fix too long lines;
- Unify comments among files;
- Unify TODO sections within the code;
- Remove deprecated sections of code;
- Fix combining and dividing of conditions and loops;
- Fix typos;
- Fix various definitions of functions';

Additionally, the source code structure has been unified using default auto
formatter of C/C++ code which is up to date with recent standards.

In Visual Studio code if not enabled by default, the key combination is
Shift + Alt + F

Some exceptions have been applied for better readability due to Doxygen,
Chocolate Doom custom parser documentation and various directives available in
the code.

Author: Amonare

zephyrdoom/src/doom/am_map.c

@@ -1,53 +1,55 @@
-//
-// Copyright(C) 1993-1996 Id Software, Inc.
-// Copyright(C) 2005-2014 Simon Howard
-//
-// This program is free software; you can redistribute it and/or
-// modify it under the terms of the GNU General Public License
-// as published by the Free Software Foundation; either version 2
-// of the License, or (at your option) any later version.
-//
-// This program is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// DESCRIPTION:
-//  AutoMap module.
-//
+/*
+ * Copyright(C) 1993-1996 Id Software, Inc.
+ * Copyright(C) 2005-2014 Simon Howard
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * DESCRIPTION:
+ * AutoMap module.
+ */
 
 #ifndef __AMMAP_H__
 #define __AMMAP_H__
 
 #include "d_event.h"
 #include "m_cheat.h"
 
-// Used by ST StatusBar stuff.
-// NRFD-NOTE: Decreased size of data in event_t
-// #define AM_MSGHEADER (('a'<<24)+('m'<<16))
-// #define AM_MSGENTERED (AM_MSGHEADER | ('e'<<8))
-// #define AM_MSGEXITED (AM_MSGHEADER | ('x'<<8))
+/*
+ * // TODO
+ * // NRFD-NOTE: Decreased size of data in event_t
+ * // Used by ST StatusBar stuff.
+ * #define AM_MSGHEADER (('a'<<24)+('m'<<16))
+ * #define AM_MSGENTERED (AM_MSGHEADER | ('e'<<8))
+ * #define AM_MSGEXITED (AM_MSGHEADER | ('x'<<8))
+ */
 
 #define AM_MSGHEADER 0x4000
 #define AM_MSGENTERED (AM_MSGHEADER | 0x0E00)
 #define AM_MSGEXITED (AM_MSGHEADER | 0X0F00)
 
-// Called by main loop.
-boolean AM_Responder (event_t* ev);
+/* Called by main loop. */
+boolean AM_Responder(event_t *ev);
 
-// Called by main loop.
-void AM_Ticker (void);
+/* Called by main loop. */
+void AM_Ticker(void);
 
-// Called by main loop,
-// called instead of view drawer if automap active.
-void AM_Drawer (void);
-
-// Called to force the automap to quit
-// if the level is completed while it is up.
-void AM_Stop (void);
+/* Called by main loop. Called instead of view drawer if automap active. */
+void AM_Drawer(void);
 
+/*
+ * Called to force the automap to quit,
+ * if the level is completed while it is up.
+ */
+void AM_Stop(void);
 
 extern cheatseq_t cheat_amap;
 
-
-#endif
+#endif /* __AMMAP_H__ */