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/*
* Copyright (c) 1997 - 2001 Hansjrg Malthaner
*
* This file is part of the Simutrans project under the artistic license.
* (see license.txt)
*/
#include <stdio.h>
#include <string.h>
#include "simdebug.h"
#include "simsys.h"
#include "simintr.h"
#include "simwin.h"
#include "player/simplay.h"
#include "simworld.h"
#include "simview.h"
#include "boden/wasser.h"
static karte_t *welt_modell = NULL;
static karte_ansicht_t *welt_ansicht = NULL;
static long last_time;
static bool enabled = false;
#define FRAME_TIME_MULTI (16)
// pause between two frames
static long frame_time = 36*FRAME_TIME_MULTI;
bool reduce_frame_time()
{
if(frame_time > 25*FRAME_TIME_MULTI) {
frame_time -= 1;
if( frame_time>150*FRAME_TIME_MULTI ) {
frame_time -= 8;
}
return true;
}
else {
frame_time = 25*FRAME_TIME_MULTI;
return false;
}
}
bool increase_frame_time()
{
if(frame_time < 255*FRAME_TIME_MULTI) {
frame_time ++;
return true;
} else {
return false;
}
}
long get_frame_time()
{
return frame_time/FRAME_TIME_MULTI;
}
void set_frame_time(long time)
{
frame_time = clamp( time, 10, 250 )*FRAME_TIME_MULTI;
}
void intr_refresh_display(bool dirty)
{
wasser_t::prepare_for_refresh();
dr_prepare_flush();
welt_ansicht->display( dirty );
win_display_flush(welt_modell->get_active_player()->get_konto_als_double());
dr_flush();
}
void interrupt_check()
{
interrupt_check( "0" );
}
// debug version with caller information
void interrupt_check(const char* caller_info)
{
DBG_DEBUG4("interrupt_check", "called from (%s)", caller_info);
if(enabled) {
static uint32 last_ms = 0;
if( !welt_modell->is_fast_forward() || welt_modell->get_zeit_ms() != last_ms ) {
const long now = dr_time();
if((now-last_time)*FRAME_TIME_MULTI < frame_time) {
return;
}
const long diff = ((now - last_time)*welt_modell->get_time_multiplier())/16;
if(diff>0) {
enabled = false;
last_time = now;
welt_modell->sync_step( diff, !welt_modell->is_fast_forward(), true );
enabled = true;
}
}
last_ms = welt_modell->get_zeit_ms();
}
(void)caller_info;
}
void intr_set(karte_t *welt, karte_ansicht_t *view)
{
welt_modell = welt;
welt_ansicht = view;
last_time = dr_time();
enabled = true;
}
/**
* currently only used by the pause tool. Use with care!
* @author Hj. Malthaner
*/
void intr_set_last_time(long time)
{
last_time = time;
}
long intr_get_last_time()
{
return last_time;
}
void intr_disable()
{
enabled = false;
}
void intr_enable()
{
enabled = true;
}
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