ref: 20ea83f058cb0ad8463ee6304df974b4ec55404a
parent: 5b6f23990a4006e4811491f336d3a586836fbac2
author: Simon Howard <[email protected]>
date: Sat Sep 6 17:08:54 EDT 2008
Add missing d_event.c. Subversion-branch: /branches/raven-branch Subversion-revision: 1207
--- /dev/null
+++ b/src/d_event.c
@@ -1,0 +1,72 @@
+// Emacs style mode select -*- C++ -*-
+//-----------------------------------------------------------------------------
+//
+// Copyright(C) 1993-1996 Id Software, Inc.
+// Copyright(C) 2005 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.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+// 02111-1307, USA.
+//
+//-----------------------------------------------------------------------------
+//
+// DESCRIPTION: Event handling.
+//
+// Events are asynchronous inputs generally generated by the game user.
+// Events can be discarded if no responder claims them
+//
+//-----------------------------------------------------------------------------
+
+#include <stdlib.h>
+#include "d_event.h"
+
+#define MAXEVENTS 64
+
+static event_t events[MAXEVENTS];
+static int eventhead;
+static int eventtail;
+
+//
+// D_PostEvent
+// Called by the I/O functions when input is detected
+//
+void D_PostEvent (event_t* ev)
+{+ events[eventhead] = *ev;
+ eventhead = (eventhead + 1) % MAXEVENTS;
+}
+
+// Read an event from the queue.
+
+event_t *D_PopEvent(void)
+{+ event_t *result;
+
+ // No more events waiting.
+
+ if (eventtail == eventhead)
+ {+ return NULL;
+ }
+
+ result = &events[eventtail];
+
+ // Advance to the next event in the queue.
+
+ eventtail = (eventtail + 1) % MAXEVENTS;
+
+ return result;
+}
+
+