Powerups spawn immediately if no warmup time is set.

When playing matches without warmup (g_warmup time 0) powerups spawn immediatly after the map is loaded. This is changing gameplay very much because the player who spawns next to the powerup has a strong benefit compared to other players. By default there was a delayed spawn time to prevent such unfair situations.
NOTE: I talk about un-modded baseq3, not Defrag or any other mod! That is why I opend this ticket here because I don't know if this new powerup behaviour was intended or not.
Feel free to close this issue if the new powerup spawn rules are intended.

[ensiform]

Looks like that it only takes the spawn time delay into account if you use warm-up in code after warm-up changes.

[WofWca]

This also affects single player, regardless of the value of g_warmup.

[WofWca]

I think the Mega Health also doesn't spawn initially, which it should?

Edit: OK, apparently this is intentional:

baseq3a/code/game/g_items.c

Line 26 in 8826b68

#define SPAWN_MEGAHEALTH 10000

[WofWca]

A good place to start figuring it out is 2c65e57.

[WofWca]

OK, this has to do with the removal of this piece of code:

baseq3a/code/game/g_items.c

Lines 698 to 708 in 62f995d

	// powerups don't spawn in for a while
	if ( ent->item->giType == IT_POWERUP ) {
	float respawn;
	respawn = 45 + crandom() * 15;
	ent->s.eFlags |= EF_NODRAW;
	ent->r.contents = 0;
	ent->nextthink = level.time + respawn * 1000;
	ent->think = RespawnItem;
	return;
	}

2c65e57#diff-11cee2877eb837fc7cde2d90788e90622db0399d90441d5c6c6a3ad8df605f2eL698-L709

The intent, according to the commit message, was to spawn powerups during warmup. However, due to such huge negative consequences, I suggest to just bring back that code, until a proper solution is found.

Apparently G_WarmupEnd does not get executed when g_warmup 0 or when playing single player, so FinishSpawningItem is what's responsible for the initial spawns then.