Update for SimpleNoise

Author: monkstone

external_library/gem/geomerative/library/f_agent/f_agent.rb

@@ -12,18 +12,20 @@ def initialize(loc:, increment:)
 
   def motion
     @offset += increment
-    loc.dist(Vec2D.new(noise(offset.x) * width, noise(offset.y) * height))
+    hw = width / 2
+    hh = height / 2
+    loc.dist(Vec2D.new((noise(offset.x) + 1) * hw, (noise(offset.y) + 1) * hh))
   end
 
   def display(xr:, yr:, m_point:)
     no_stroke
-    fill(255, 73)
-    dia = (150 / m_point) * 5
+    fill(255, 100)
+    dia = (150 / m_point) * 7
     # to get weird non-deterministic behaviour of original, created by use of
     # negative inputs to a random range surely not intended, use original:-
     # ellipse(loc.x + random(-xr, xr), loc.y + random(-yr, yr), dia, dia)
-    xr *= -1 if xr < 0 # guards against an invalid hi..low range
-    yr *= -1 if yr < 0
+    xr *= -1 if xr.negative? # guards against an invalid hi..low range
+    yr *= -1 if yr.negative?
     ellipse(loc.x + rand(-xr..xr), loc.y + rand(-yr..yr), dia, dia)
   end
 end

external_library/gem/geomerative/library/font_agent/font_agent.rb

@@ -11,9 +11,9 @@ def initialize(location:)
 
   def motion
     noise_scale = map1d(mouse_x, (0..width), (0.001..0.01))
-    noise_z = map1d(mouse_x, (0..height), (frame_count * 0.0003..frame_count * 0.02))
+    noise_z = map1d(mouse_y, (0..height), (frame_count * 0.0003..frame_count * 0.02))
     noise_vector = loc * noise_scale * noise_z
-    @mot = noise(noise_vector.x, noise_vector.y) * 53
+    @mot = (noise(noise_vector.x, noise_vector.y) + 1) * 26.5
   end
 
   def display(step:)

external_library/gem/geomerative/typo_deform.rb

@@ -1,6 +1,5 @@
 #!/usr/bin/env jruby -w
 
-
 require 'propane'
 require 'geomerative'
 

external_library/gem/geomerative/typo_extra_bright.rb

@@ -19,9 +19,8 @@
 # A series of tutorials for using the Geomerative Library
 # developed by Ricard Marxer.
 # http://www.ricardmarxer.com/geomerative/
+# Hold mouse over bottom of `B` to focus, move away to blur
 #
-# More info on these tutorials and workshops at :
-# www.freeartbureau.org/blog
 # translated for propane by Martin Prout
 class ExtraBright < Propane::App
   load_library :f_agent