feat: update utils to current birb

sonic-radiance.love/birb/utils/math.lua

@@ -105,6 +105,34 @@ function Math.lengthdir(lenght, dir)
   return x, y
 end
 
+-- 3D MATH FUNCTIONS
+-- Basic math calculations for 3D
+
+function Math.getMiddlePoint3D(x1, y1, z1, x2, y2, z2)
+  local newx, newy, newz, vecx, vecy, vecz
+
+  vecx = math.max(x1, x2) - math.min(x1, x2)
+  vecy = math.max(y1, y2) - math.min(y1, y2)
+  vecz = math.max(z1, z2) - math.min(z1, z2)
+
+  newx = math.min(x1, x2) + (vecx / 2)
+  newy = math.min(y1, y2) + (vecy / 2)
+  newz = math.min(z1, z2) + (vecz / 2)
+
+  return newx, newy, newz
+end
+
+function Math.pointDistance3D(x1, y1, z1, x2, y2, z2)
+  local vecx, vecy, vecz
+
+  vecx = math.max(x1, x2) - math.min(x1, x2)
+  vecy = math.max(y1, y2) - math.min(y1, y2)
+  vecz = math.max(z1, z2) - math.min(z1, z2)
+
+  return math.sqrt(vecx^2 + vecy^2 + vecz^2)
+
+end
+
 -- STRING FUNCTIONS
 -- Transform into string numbers
 

sonic-radiance.love/birb/utils/table.lua

@@ -1,8 +1,7 @@
 -- loveutils.table : simple functions for table manipulation and computation.
--- TODO: could be a part of loveutils.math ?
 
 --[[
-  Copyright © 2019 Kazhnuz
+  Copyright © 2021 Kazhnuz
 
   Permission is hereby granted, free of charge, to any person obtaining a copy of
   this software and associated documentation files (the "Software"), to deal in