choice of glider shapes

1 files changed, 17 insertions, 9 deletions

diff --git a/client/index.js b/client/index.js
index 82be8e0..b9b7a03 100644
--- a/client/index.js
+++ b/client/index.js
@@ -3,7 +3,7 @@ import color from './lib/color'
 import kalimba from './lib/kalimba'
 import life from './lib/life'
 import organ from './lib/organ'
-import { browser, requestAudioContext } from './lib/util'
+import { browser, requestAudioContext, choice } from './lib/util'
 
 let instrument = kalimba
 
@@ -55,18 +55,26 @@ function assign(freq, state) {
 function toggle(freq) {
   assign(freq, freq.playing = !freq.playing)
 }
+const gliderShape = [
+  [0,0,0,0,0],
+  [0,1,1,1,0],
+  [0,0,0,1,0],
+  [0,0,1,0,0],
+  [0,0,0,0,0],
+]
+const gliderShapeFlip = gliderShape.map(a => a.reverse())
+const gliderShapes = [
+  gliderShape,
+  gliderShapeFlip,
+  gliderShape.reverse(),
+  gliderShapeFlip.reverse(),
+]
 function glider() {
   const x = Math.floor(Math.random() * ws)
   const y = Math.floor(Math.random() * hs)
   console.log("glider at", x, y)
-  const gliderShape = [
-    [0,0,0,0,0],
-    [0,1,1,1,0],
-    [0,0,0,1,0],
-    [0,0,1,0,0],
-    [0,0,0,0,0],
-  ]
-  weave(x,y,gliderShape)
+  const shape = choice(gliderShapes)
+  weave(x,y,shape)
 }
 function weave (x,y,shape) {
   const xmag = shape.length