Daytime Hostiles - Simply mobs spawn all the time!

[Cinder]

I'm trying to create a modpack that takes place in an apocalypse, but I don't really like how mobs only spawn at night except for one inside one of the mods (the mob aptly named "Day Zombie"). If possible, could someone make a small mod that allows all the other hostile mobs spawn during the day as well? Only at a reduced rate to stop swarming players?

[Torezu]

Here's the problem you'll have with that: spawning is controlled by light level.  Mods like Crafting Dead remove the light level controls, but that also means you can't really adequately keep unwanted things like creepers from spawning inside your base.

 

If you could solve that problem, well...you might have a pretty nice idea.

[planetguy]

To let mobs spawn all day but have safe areas still be possible, you could make mobs ignore skylight when checking if they can spawn.

 

If you wanted mobs to spawn all day and all night, you would probably want them to not burn in daylight - otherwise they'd spawn and immediately die, leaving item drops, and be replaced by freshly spawned mobs, and so on forever until all the items make your computer melt down.

[Lethosos]

You could have the daylight undead spawn in with helmets, pumpkins, or their own mobhead on--that will keep them from getting nuked by the sun.