kopia lustrzana https://github.com/Jean-MarcHarvengt/MCUME
64 wiersze
1.4 KiB
C
64 wiersze
1.4 KiB
C
//
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// Copyright(C) 1993-1996 Id Software, Inc.
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// Copyright(C) 2005-2014 Simon Howard
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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//
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// DESCRIPTION: Event handling.
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//
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// Events are asynchronous inputs generally generated by the game user.
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// Events can be discarded if no responder claims them
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//
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#include <stdlib.h>
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#include "d_event.h"
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#define MAXEVENTS 64
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static event_t events[MAXEVENTS];
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static int eventhead;
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static int eventtail;
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//
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// D_PostEvent
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// Called by the I/O functions when input is detected
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//
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void D_PostEvent (event_t* ev)
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{
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events[eventhead] = *ev;
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eventhead = (eventhead + 1) % MAXEVENTS;
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}
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// Read an event from the queue.
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event_t *D_PopEvent(void)
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{
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event_t *result;
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// No more events waiting.
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if (eventtail == eventhead)
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{
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return NULL;
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}
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result = &events[eventtail];
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// Advance to the next event in the queue.
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eventtail = (eventtail + 1) % MAXEVENTS;
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return result;
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}
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