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Guards DT_PROB and DT_PROB_RATE macros against scenarios where they're used as if they were procs. (#54397)

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Timberpoes
2020-10-15 18:37:19 +01:00
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parent a6740b8796
commit 9cdf146bfd
1 changed files with 2 additions and 2 deletions
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code/__DEFINES/maths.dm
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@@ -214,10 +214,10 @@
/// Converts a probability/second chance to probability/delta_time chance
/// For example, if you want an event to happen with a 10% per second chance, but your proc only runs every 5 seconds, do `if(prob(100*DT_PROB_RATE(0.1, 5)))`
#define DT_PROB_RATE(prob_per_second, delta_time) (1 - (1 - prob_per_second) ** delta_time)
#define DT_PROB_RATE(prob_per_second, delta_time) (1 - (1 - (prob_per_second)) ** (delta_time))
/// Like DT_PROB_RATE but easier to use, simply put `if(DT_PROB(10, 5))`
#define DT_PROB(prob_per_second_percent, delta_time) (prob(100*DT_PROB_RATE(prob_per_second_percent/100, delta_time)))
#define DT_PROB(prob_per_second_percent, delta_time) (prob(100*DT_PROB_RATE((prob_per_second_percent)/100, (delta_time))))
// )
#define GET_TRUE_DIST(a, b) (a == null || b == null) ? -1 : max(abs(a.x -b.x), abs(a.y-b.y), abs(a.z-b.z))