Last active
December 28, 2015 16:19
-
-
Save superwills/7527655 to your computer and use it in GitHub Desktop.
Chance table
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
If you want an event in a game that runs at 60FPS to occur ON AVERAGE (once every 30 seconds), | |
then the probability interval you should use is 0.000555555556. So pick a range, | |
say [0, 0.000555555556]. | |
Call randFloat(0,1) once every frame, and if the random generated is on | |
[0,0.000555555556] then make the event happen. | |
This table is to choose a probability interval (on [0,1]). | |
If you want something to occur on average ONCE per second for a 60 FPS game, | |
then the probability interval for that event should be exactly 1/60 chance | |
of occurring on each frame (0.016667) | |
This assumes your probability selector uses a uniformly distributed float on [0,1]. | |
The formula for the # on the right is CHANCE=1/(FPS*avgTime[in units of seconds]) | |
// 0.0166667 per-frame chance means happens once every SECOND on avg | |
avgTime| CHANCE interval size | |
0:01 | 0.016666666667 | |
0:02 | 0.008333333333 | |
0:03 | 0.005555555556 | |
0:04 | 0.004166666667 | |
0:05 | 0.003333333333 | |
0:06 | 0.002777777778 | |
0:07 | 0.002380952381 | |
0:08 | 0.002083333333 | |
0:09 | 0.001851851852 | |
0:10 | 0.001666666667 | |
0:11 | 0.001515151515 | |
0:12 | 0.001388888889 | |
0:13 | 0.001282051282 | |
0:14 | 0.001190476190 | |
0:15 | 0.001111111111 | |
0:16 | 0.001041666667 | |
0:17 | 0.000980392157 | |
0:18 | 0.000925925926 | |
0:19 | 0.000877192982 | |
0:20 | 0.000833333333 | |
0:21 | 0.000793650794 | |
0:22 | 0.000757575758 | |
0:23 | 0.000724637681 | |
0:24 | 0.000694444444 | |
0:25 | 0.000666666667 | |
0:26 | 0.000641025641 | |
0:27 | 0.000617283951 | |
0:28 | 0.000595238095 | |
0:29 | 0.000574712644 | |
0:30 | 0.000555555556 | |
0:31 | 0.000537634409 | |
0:32 | 0.000520833333 | |
0:33 | 0.000505050505 | |
0:34 | 0.000490196078 | |
0:35 | 0.000476190476 | |
0:36 | 0.000462962963 | |
0:37 | 0.000450450450 | |
0:38 | 0.000438596491 | |
0:39 | 0.000427350427 | |
0:40 | 0.000416666667 | |
0:41 | 0.000406504065 | |
0:42 | 0.000396825397 | |
0:43 | 0.000387596899 | |
0:44 | 0.000378787879 | |
0:45 | 0.000370370370 | |
0:46 | 0.000362318841 | |
0:47 | 0.000354609929 | |
0:48 | 0.000347222222 | |
0:49 | 0.000340136054 | |
0:50 | 0.000333333333 | |
0:51 | 0.000326797386 | |
0:52 | 0.000320512821 | |
0:53 | 0.000314465409 | |
0:54 | 0.000308641975 | |
0:55 | 0.000303030303 | |
0:56 | 0.000297619048 | |
0:57 | 0.000292397661 | |
0:58 | 0.000287356322 | |
0:59 | 0.000282485876 | |
1:00 | 0.000277777778 | |
1:01 | 0.000273224044 | |
1:02 | 0.000268817204 | |
1:03 | 0.000264550265 | |
1:04 | 0.000260416667 | |
1:05 | 0.000256410256 | |
1:06 | 0.000252525253 | |
1:07 | 0.000248756219 | |
1:08 | 0.000245098039 | |
1:09 | 0.000241545894 | |
1:10 | 0.000238095238 | |
1:11 | 0.000234741784 | |
1:12 | 0.000231481481 | |
1:13 | 0.000228310502 | |
1:14 | 0.000225225225 | |
1:15 | 0.000222222222 | |
1:16 | 0.000219298246 | |
1:17 | 0.000216450216 | |
1:18 | 0.000213675214 | |
1:19 | 0.000210970464 | |
1:20 | 0.000208333333 | |
1:21 | 0.000205761317 | |
1:22 | 0.000203252033 | |
1:23 | 0.000200803213 | |
1:24 | 0.000198412698 | |
1:25 | 0.000196078431 | |
1:26 | 0.000193798450 | |
1:27 | 0.000191570881 | |
1:28 | 0.000189393939 | |
1:29 | 0.000187265918 | |
1:30 | 0.000185185185 | |
1:31 | 0.000183150183 | |
1:32 | 0.000181159420 | |
1:33 | 0.000179211470 | |
1:34 | 0.000177304965 | |
1:35 | 0.000175438596 | |
1:36 | 0.000173611111 | |
1:37 | 0.000171821306 | |
1:38 | 0.000170068027 | |
1:39 | 0.000168350168 | |
1:40 | 0.000166666667 | |
1:41 | 0.000165016502 | |
1:42 | 0.000163398693 | |
1:43 | 0.000161812298 | |
1:44 | 0.000160256410 | |
1:45 | 0.000158730159 | |
1:46 | 0.000157232704 | |
1:47 | 0.000155763240 | |
1:48 | 0.000154320988 | |
1:49 | 0.000152905199 | |
1:50 | 0.000151515152 | |
1:51 | 0.000150150150 | |
1:52 | 0.000148809524 | |
1:53 | 0.000147492625 | |
1:54 | 0.000146198830 | |
1:55 | 0.000144927536 | |
1:56 | 0.000143678161 | |
1:57 | 0.000142450142 | |
1:58 | 0.000141242938 | |
1:59 | 0.000140056022 | |
2:00 | 0.000138888889 | |
2:01 | 0.000137741047 | |
2:02 | 0.000136612022 | |
2:03 | 0.000135501355 | |
2:04 | 0.000134408602 | |
2:05 | 0.000133333333 | |
2:06 | 0.000132275132 | |
2:07 | 0.000131233596 | |
2:08 | 0.000130208333 | |
2:09 | 0.000129198966 | |
2:10 | 0.000128205128 | |
2:11 | 0.000127226463 | |
2:12 | 0.000126262626 | |
2:13 | 0.000125313283 | |
2:14 | 0.000124378109 | |
2:15 | 0.000123456790 | |
2:16 | 0.000122549020 | |
2:17 | 0.000121654501 | |
2:18 | 0.000120772947 | |
2:19 | 0.000119904077 | |
2:20 | 0.000119047619 | |
2:21 | 0.000118203310 | |
2:22 | 0.000117370892 | |
2:23 | 0.000116550117 | |
2:24 | 0.000115740741 | |
2:25 | 0.000114942529 | |
2:26 | 0.000114155251 | |
2:27 | 0.000113378685 | |
2:28 | 0.000112612613 | |
2:29 | 0.000111856823 | |
2:30 | 0.000111111111 | |
2:31 | 0.000110375276 | |
2:32 | 0.000109649123 | |
2:33 | 0.000108932462 | |
2:34 | 0.000108225108 | |
2:35 | 0.000107526882 | |
2:36 | 0.000106837607 | |
2:37 | 0.000106157113 | |
2:38 | 0.000105485232 | |
2:39 | 0.000104821803 | |
2:40 | 0.000104166667 | |
2:41 | 0.000103519669 | |
2:42 | 0.000102880658 | |
2:43 | 0.000102249489 | |
2:44 | 0.000101626016 | |
2:45 | 0.000101010101 | |
2:46 | 0.000100401606 | |
2:47 | 0.000099800399 | |
2:48 | 0.000099206349 | |
2:49 | 0.000098619329 | |
2:50 | 0.000098039216 | |
2:51 | 0.000097465887 | |
2:52 | 0.000096899225 | |
2:53 | 0.000096339114 | |
2:54 | 0.000095785441 | |
2:55 | 0.000095238095 | |
2:56 | 0.000094696970 | |
2:57 | 0.000094161959 | |
2:58 | 0.000093632959 | |
2:59 | 0.000093109870 | |
3:00 | 0.000092592593 |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment