Source:NetHack 3.4.3/src/rnd.c - Revision history

Furey: Fix instructions for linking to a particular line. Current instructions incorrectly link to a different version of NetHack.

2024-06-26T04:50:26Z

Fix instructions for linking to a particular line. Current instructions incorrectly link to a different version of NetHack.

2014-08-03T19:33:38Z

‎rnl

2012-09-10T16:06:07Z

Text replace - "<ref> *\[\[([a-zA-Z][a-zA-Z]*\.[ch])#[Ll]ine([0-9][0-9]*)\]\] *<\/ref>" to "{{refsrc|$1|$2}}"

2011-01-31T19:23:27Z

2011-01-05T09:30:52Z

Text replace - "==Source code references==" to "==References=="

2010-11-20T19:08:44Z

Adding __MIXEDSYNTAXHIGHLIGHT__

2008-05-22T02:16:17Z

Some {{clear}} templates to neaten this a bit

2008-03-04T15:04:33Z

Rnd.c moved to Source:Rnd.c: Robot: moved page

2007-09-27T13:28:27Z

linked to another related source code page

2007-05-06T18:43:24Z

Graph for rne

@@ Line 1: / Line 1: @@
 __MIXEDSYNTAXHIGHLIGHT__
-Below is the full text to src/rnd.c from NetHack 3.4.3. To link to a particular line, write [[rnd.c#line123|<nowiki>[[rnd.c#line123]]</nowiki>]], for example.
+Below is the full text to src/rnd.c from NetHack 3.4.3. To link to a particular line, write [[Source:NetHack 3.4.3/src/rnd.c#line123]], for example.
 This file contains the functions that power NetHack's [[RNG]].

← Older revision		Revision as of 19:33, 3 August 2014
Line 99:		Line 99:

	In the worst case scenario (a very unlucky character with -13 Luck) there is a 251/252 (~=99.6%) of the armor being eroded.		In the worst case scenario (a very unlucky character with -13 Luck) there is a 251/252 (~=99.6%) of the armor being eroded.
		+
		+	When you have neutral (0) luck, rnl(x) is equal to rn2(x), so there is a 3/4 (75%) chance of the armor being eroded.

	Moral: keep your Luck high.		Moral: keep your Luck high.

@@ Line 94: / Line 94: @@
 rnl(x) is the same as rn2, with a chance of a proportion of your [[Luck]] being subtracted from the result. This means very lucky characters tend to see lower values and very unlucky characters tend to see higher values.
-In-game, this is used to make saving throws against your Luck. For example, blessed armor has a saving throw against being eroded by a trap: if rnl(4) is zero, the armor escapes unscathed<ref>[[trap.c#line162]]</ref><ref>[[trap.c#line2666]]</ref><ref>[[trap.c#line2723]]</ref>:
+In-game, this is used to make saving throws against your Luck. For example, blessed armor has a saving throw against being eroded by a trap: if rnl(4) is zero, the armor escapes unscathed{{refsrc|trap.c|162}}{{refsrc|trap.c|2666}}{{refsrc|trap.c|2723}}:
 First, '''i''' is a random integer from 0 to 3. A very lucky character (with +13 Luck) has a rn2(37) chance (36 in 37 ~= 97%) of this being reduced by Luck/3, which in this case rounds to 4. '''i''' cannot be reduced below 0, so it is set to 0. So the other 1 time in 37 there will be a 25% chance of '''i''' being 0. In total, that's a 145/148 chance (~=98%) that the armor will not be eroded.

@@ Line 220: / Line 220: @@
 [[hack.h#line291]] - rn1(x,y) #define
-==Source code references==
+==References==
 <references/>
 [[Category:source code]]

← Older revision		Revision as of 19:08, 20 November 2010
Line 1:		Line 1:
		+	__MIXEDSYNTAXHIGHLIGHT__
	Below is the full text to src/rnd.c from NetHack 3.4.3. To link to a particular line, write [[rnd.c#line123\|<nowiki>[[rnd.c#line123]]</nowiki>]], for example.		Below is the full text to src/rnd.c from NetHack 3.4.3. To link to a particular line, write [[rnd.c#line123\|<nowiki>[[rnd.c#line123]]</nowiki>]], for example.

← Older revision	Revision as of 19:23, 31 January 2011
(No difference)

@@ Line 153: / Line 153: @@
 "Alea iacta est" is Latin for "the die is cast".
 "J.C." refers to Julius Caesar, from whom this [http://en.wikipedia.org/wiki/Alea_iacta_est quote] originates.
+{{clear}}
 ==rne==
@@ Line 194: / Line 184: @@
 [[rne]] returns an exponentially weighted random integer from 1 to a number depending on your [[experience level]]. It is used in-game for deciding the enchantment of randomly generated items.
+{{clear}}
 ==rnz==
@@ Line 234: / Line 213: @@
 [[rnz]] produces a very strange distribution and is used for calculating prayer timeouts, among other things.
+{{clear}}
 == See Also ==

← Older revision	Revision as of 15:04, 4 March 2008
(No difference)

@@ Line 153: / Line 153: @@
 "Alea iacta est" is Latin for "the die is cast".
 "J.C." refers to Julius Caesar, from whom this [http://en.wikipedia.org/wiki/Alea_iacta_est quote] originates.
@@ Line 190: / Line 191: @@
   <span id="line124">124.  </span>
-rne returns an exponentially weighted random integer from 1 to a number depending on your [[experience level]]. It is used in-game for deciding the enchantment of randomly generated items.
+[[Image:rne3.svg|thumb|Probability graph of a call of rne(3) when [[experience level]] is less than 18.]]
 ==rnz==