janwas
871cdb6ef9
- error codes now accessed as ERR::NO_MEM, INFO::OK etc. - no more X-macros => the above are now recognized by visual assist - error codes are defined by the module originating them (lib_errors has some generic ones) => no full rebuild when adding some - error descriptions are now in C++ files => can be changed without full rebuild added AT_STARTUP in lib.h. This was SVN commit r4374.
177 lines
3.2 KiB
C++
177 lines
3.2 KiB
C++
/**
|
|
* =========================================================================
|
|
* File : input.cpp
|
|
* Project : 0 A.D.
|
|
* Description : SDL input redirector; dispatches to multiple handlers and
|
|
* : allows record/playback of evs.
|
|
*
|
|
* @author Jan.Wassenberg@stud.uni-karlsruhe.de
|
|
* =========================================================================
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2002 Jan Wassenberg
|
|
*
|
|
* Redistribution and/or modification are also permitted under the
|
|
* terms of the GNU General Public License as published by the
|
|
* Free Software Foundation (version 2 or later, at your option).
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include "precompiled.h"
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "lib.h"
|
|
#include "input.h"
|
|
#include "sdl.h"
|
|
#include "lib/res/file/file.h"
|
|
|
|
const uint MAX_HANDLERS = 8;
|
|
static InHandler handler_stack[MAX_HANDLERS];
|
|
static uint handler_stack_top = 0;
|
|
|
|
void in_add_handler(InHandler handler)
|
|
{
|
|
debug_assert(handler);
|
|
|
|
if(handler_stack_top >= MAX_HANDLERS)
|
|
WARN_ERR_RETURN(ERR::LIMIT);
|
|
|
|
handler_stack[handler_stack_top++] = handler;
|
|
}
|
|
|
|
|
|
// send ev to each handler until one returns IN_HANDLED
|
|
static void dispatch_ev(const SDL_Event_* ev)
|
|
{
|
|
for(int i = (int)handler_stack_top-1; i >= 0; i--)
|
|
{
|
|
debug_assert(handler_stack[i] && ev);
|
|
InReaction ret = handler_stack[i](ev);
|
|
// .. done, return
|
|
if(ret == IN_HANDLED)
|
|
return;
|
|
// .. next handler
|
|
else if(ret == IN_PASS)
|
|
continue;
|
|
// .. invalid return value
|
|
else
|
|
debug_warn("invalid handler return value");
|
|
}
|
|
}
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
static enum
|
|
{
|
|
INIT, // first call to in_record() or in_playback(): register cleanup routine
|
|
IDLE,
|
|
RECORD,
|
|
PLAYBACK
|
|
}
|
|
state = INIT;
|
|
|
|
static FILE* f;
|
|
|
|
u32 game_ticks;
|
|
|
|
static u32 time_adjust = 0;
|
|
static u32 next_ev_time;
|
|
|
|
|
|
void in_stop()
|
|
{
|
|
if(f)
|
|
{
|
|
fclose(f);
|
|
f = 0;
|
|
}
|
|
|
|
state = IDLE;
|
|
}
|
|
|
|
|
|
LibError in_record(const char* fn)
|
|
{
|
|
if(state == INIT)
|
|
atexit(in_stop);
|
|
|
|
in_stop();
|
|
|
|
f = fopen(fn, "wb");
|
|
if(!f)
|
|
WARN_RETURN(ERR::FILE_ACCESS);
|
|
|
|
fwrite(&game_ticks, sizeof(u32), 1, f);
|
|
|
|
state = RECORD;
|
|
|
|
return INFO::OK;
|
|
}
|
|
|
|
|
|
LibError in_playback(const char* fn)
|
|
{
|
|
if(state == INIT)
|
|
atexit(in_stop);
|
|
|
|
in_stop();
|
|
|
|
f = fopen(fn, "rb");
|
|
if(!f)
|
|
WARN_RETURN(ERR::FILE_ACCESS);
|
|
|
|
u32 rec_start_time;
|
|
fread(&rec_start_time, sizeof(u32), 1, f);
|
|
time_adjust = game_ticks-rec_start_time;
|
|
|
|
fread(&next_ev_time, sizeof(u32), 1, f);
|
|
next_ev_time += time_adjust;
|
|
|
|
state = PLAYBACK;
|
|
|
|
return INFO::OK;
|
|
}
|
|
|
|
|
|
|
|
void in_dispatch_event(const SDL_Event_* ev)
|
|
{
|
|
if(state == RECORD)
|
|
{
|
|
fwrite(&game_ticks, sizeof(u32), 1, f);
|
|
fwrite(ev, sizeof(SDL_Event_), 1, f);
|
|
}
|
|
|
|
dispatch_ev(ev);
|
|
}
|
|
|
|
|
|
void in_dispatch_recorded_events()
|
|
{
|
|
SDL_Event_ ev;
|
|
|
|
while(state == PLAYBACK && next_ev_time <= game_ticks)
|
|
{
|
|
fread(&ev, sizeof(SDL_Event_), 1, f);
|
|
|
|
// do this before dispatch_ev(),
|
|
// in case a handler calls in_stop() (setting f to 0)
|
|
if(!fread(&next_ev_time, sizeof(u32), 1, f))
|
|
{
|
|
in_stop();
|
|
exit(0x73c07d);
|
|
// TODO: 'disconnect'?
|
|
}
|
|
next_ev_time += time_adjust;
|
|
|
|
in_dispatch_event(&ev);
|
|
}
|
|
}
|