lib/standard/: Removed bin_and/or/xor/not from math

[nit.git] / examples / rosettacode / perlin_noise.nit

diff --git a/examples/rosettacode/perlin_noise.nit b/examples/rosettacode/perlin_noise.nit
index a3352da..0733bbf 100644 (file)
--- a/examples/rosettacode/perlin_noise.nit
+++ b/examples/rosettacode/perlin_noise.nit
@@ -33,9 +33,9 @@ class ImprovedNoise
        # Noise value in [-1..1] at 3d coordinates `x, y, z`
        fun noise(x, y, z: Float): Float
        do
-               var xx = x.to_i.bin_and(255)
-               var yy = y.to_i.bin_and(255)
-               var zz = z.to_i.bin_and(255)
+               var xx = x.to_i & 255
+               var yy = y.to_i & 255
+               var zz = z.to_i & 255
 
                x -= x.floor
                y -= y.floor
@@ -65,10 +65,10 @@ class ImprovedNoise
        # Value at a corner of the grid
        fun grad(hash: Int, x, y, z: Float): Float
        do
-               var h = hash.bin_and(15)
+               var h = hash & 15
                var u = if h < 8 then x else y
                var v = if h < 4 then y else if h == 12 or h == 14 then x else z
-               return (if h.is_even then u else -u) + (if h.bin_and(2) == 0 then v else -v)
+               return (if h.is_even then u else -u) + (if h & 2 == 0 then v else -v)
        end
 end