Talk:Blood Moon

I could be wrong but it looks like Blood Moons can't happen during a new moon and the chance is 1 in 7. if ((!WorldGen.spawnEye && (moonPhase != 4)) && ((rand.Next(7) == 0) && (netMode != 1))) Has anybody seen one happen on a new moon? Olrad 16:06, 27 June 2011 (UTC)
 * I believe rand.Next(7) would produce a random number from 0 to 7? That'd still be 1 in 8 chance. Also, possible confirmation on the !WorldGen.spawnEye part; I went somewhere well in excess of 70 days without a blood moon, but the night immediately following my killing the Eye, I got a Blood Moon. ... Also the next night, and a few since. 67.183.13.118 23:51, 9 July 2011 (UTC)
 * the rand.Next(n) function returns an integer from 0 to n-1 --GauHelldragon 03:10, 10 July 2011 (UTC)
 * For anyone who doesn't speak computer, the code above roughly translates to:
 * If the Eye of Cthulu is not being spawned this night (that's my assumption for what WorldGen.spawnEye means, correct me if I'm wrong), and the moon's phase is not 4 (which is most likely the new moon), and a random number between 0 and 6 (inclusive) equals 0, and netMode is not 1 (not sure about this), then start a blood moon. Henix Aurorus (Henix879) (talk) 19:02, 9 October 2013 (UTC)

Water Candle edit: Any proof of this behavior? DocHoncho 03:17, 6 July 2011 (UTC)
 * I can post the code for you, if you like. --GauHelldragon2 (talk) 17:47, 19 October 2013 (UTC)

Can a more specific qualifier be put for the point "Monsters will also spawn inside cities, despite the natural spawn protection they give", because what exactly is a "city"? As far as I can tell I haven't seen monsters spawn inside the rooms @ houses which an NPC has claimed. - Spinfx 06:36, 20 July 2011 (UTC)

Maximum Spawns
I think the amount of Maximum spawns during a blood moon is decreased by 30% or so. Could somebody check this up in the code?
 * It's increased by 79.999995231628%, actually. --Lunboks 12:36, 23 July 2011 (UTC)
 * Where did you get that crazy number from?--DoubleFloat 21:11, 25 July 2011 (UTC)
 * From the "decompiled" code. In the real source code, it's probably a static expression that is optimized into this exact number.
 * Hm the code I'm looking at just says NPC.maxSpawns = (int)((float)NPC.maxSpawns * 1.8f); for the bloodMoon block. I'm sure it's some sort of floating point shenanigans. --GauHelldragon 00:12, 26 July 2011 (UTC)

Bad Blood Moon luck?
It's the third night in a row I've had a blood moon (Right now it's a Waxing Gibbous) on one of my saves (EoW defeated, EoC defeated, Skeletron defeated.) Recently I did spawn another EoW with worm food. Is that what's causing it? Or bad luck? or a glitch/bug?

Blood moon 1.2
Water now appears red during blood moon. Ayamaori (talk) 10:40, 2 October 2013 (UTC)

It's also WAY more frequent. The empirical odds of Blood Moon on my first and only 1.2 world thus far are something like 1 in 2 (this is obviously not a maximally accurate measurement, but I have just experienced three in a row). 81.68.152.27 22:42, 2 October 2013 (UTC)

I think that the Harpy/Wyvern spawn altitude is also lower during a bloodmoon and eclipse. The top of my base spawns harpies only during those events. 68.196.61.47 17:38, 19 October 2013 (UTC)
 * It's likely that NPCs in your base are preventing the harpies from normally spawning. During a bloodmoon, NPCs no longer stop enemies from spawning. --GauHelldragon2 (talk) 17:48, 19 October 2013 (UTC)

I also have the major problem of harpies and wyverns spawning at a much lower altitude. This also happens during a halloween moon event and its a serious bug. It has nothing to do with NPCs. It happens on small worlds.

And effects of blood moon aren't gone when it rains. I collected plenty of raincoats from the zombie horde. 93.84.64.42 13:34, 26 December 2013 (UTC)

About the Face Monsters
Apparently someone put a note that said that Face Monsters can spawn during a Blood Moon.

I have removed this note from the page, as I have never seen it myself.

I will be testing the theory thoroughly, and will report my finding later. Until then, please do not re-add the note. Henix Aurorus (Henix879) (talk) 18:57, 9 October 2013 (UTC)

Added a question
Is the condition to get a Blood Moon having MORE than 120 life or AT LEAST 120 life? This page says more than 120, but some other sources say otherwise.
 * After asking (better late than never) a user who can read the code (here) it seems the condition is to have more than 120 life. In addition to that I earlier decided to simply place a 120-life character in a world to see if any Blood Moons would occur (speeding up the time/night-cycle through TShock), and none occurred with 20 nights. NoseOfCthulhu (talk) 22:59, 28 April 2014 (UTC)

new idea
i think blood moon should be summonable for farming purposes who agree with me?
 * Interesting idea, but I doubt many players will see it here. I suggest you head over to the official suggestion forums instead. Just keep in mind that your idea may already have been suggested by other players. NoseOfCthulhu (talk) 20:17, 27 April 2014 (UTC)