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Attract: play demo for 30 seconds, starts at random timestamp

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- Starting timestamp is not truly "random"
  - Uses a lookup table because I didn't like the PRNG
    distribution
This commit is contained in:
James R 2024-03-18 02:36:10 -07:00
parent 7a5020470d
commit 244d5e1063
2 changed files with 48 additions and 6 deletions
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49
src/f_finale.c
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@ -65,6 +65,9 @@ static tic_t stoptimer;
static boolean keypressed = false;
static tic_t attractcountdown; // Countdown until attract demo ends
static boolean attractcredit; // Show music credit once attract demo begins
static INT32 menuanimtimer; // Title screen: background animation timing
altview_t titlemapcam = {0};
@ -1747,7 +1750,7 @@ void F_TitleScreenTicker(boolean run)
UINT16 mapnum;
UINT8 numstaff;
static boolean use_netreplay = false;
staffbrief_t *brief;
staffbrief_t *brief = NULL;
if ((use_netreplay = !use_netreplay))
{
@ -1785,6 +1788,38 @@ loadreplay:
demo.attract = DEMO_ATTRACT_TITLE;
demo.ignorefiles = true;
demo.loadfiles = false;
attractcountdown = INFTICS;
if (brief)
{
// "Random" table of times to skip forward in the demo.
// I didn't want to use real random functions because I didn't like the distribution.
tic_t table[] = {
0,
15*TICRATE,
brief->lap / 2, // references to brief->lap will skip to the end of Prison replays
0,
40*TICRATE,
brief->lap,
0,
0,
brief->time,
};
UINT8 numintable = sizeof table / sizeof *table;
static UINT8 index = UINT8_MAX;
if (index == UINT8_MAX)
index = M_RandomKey(numintable);
else
index = (index + 1) % numintable;
attractcountdown = min(30*TICRATE, brief->time);
g_fast_forward = min(table[index], brief->time - attractcountdown);
// Show title screen music credit at beginning of demo
attractcredit = true;
}
G_DoPlayDemoEx(dname, dlump);
}
}
@ -1792,6 +1827,18 @@ loadreplay:
void F_AttractDemoTicker(void)
{
keypressed = false;
if (attractcountdown > 0 && !g_fast_forward)
{
if (attractcredit)
{
S_ShowMusicCredit();
attractcredit = false;
}
if (attractcountdown > 0 && !--attractcountdown)
G_CheckDemoStatus();
}
}
// ================

5
src/p_setup.cpp
View file

@ -8858,11 +8858,6 @@ void P_PostLoadLevel(void)
G_BeginRecording(); // I AM NOW READY TO RECORD.
demo.deferstart = true;
if (demo.attract == DEMO_ATTRACT_TITLE)
{
S_ShowMusicCredit();
}
nextmapoverride = 0;
skipstats = 0;