byond math is bad math

2024-04-01 18:10:40 -03:00
parent ad68229b8f
commit 9fcce9f100
2 changed files with 6 additions and 5 deletions
@@ -108,7 +108,8 @@
 #define TORADIANS(degrees) ((degrees) * 0.0174532925)

 /// Gets shift x that would be required the bitflag (1<<x)
-#define TOBITSHIFT(bit) ( log(2, bit) )
+/// We need the round because log has floating-point inaccuracy, and if we undershoot at all on list indexing we'll get the wrong index.
+#define TOBITSHIFT(bit) ( round(log(2, bit), 1) )

 // Will filter out extra rotations and negative rotations
 // E.g: 540 becomes 180. -180 becomes 180.