From 8fac46008806a7ab4908d1738a28210e76b74f36 Mon Sep 17 00:00:00 2001
From: Jules Laplace <jules@okfoc.us>
Date: Mon, 23 May 2016 02:43:49 -0400
Subject: choose a mode

---
 js/ui/evolver.js | 20 ++++++++++++++++++++
 js/ui/nopaint.js | 19 +++++++++++++++++--
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/js/ui/evolver.js b/js/ui/evolver.js
index 8e889f4..26ef05d 100644
--- a/js/ui/evolver.js
+++ b/js/ui/evolver.js
@@ -9,6 +9,7 @@ var evolver = (function(){
     population: 10,
     strokes: 1,
     randomize: false,
+    mode: 'all',
   }
   var hash = window.location.search || window.location.hash
   if (hash) {
@@ -35,6 +36,25 @@ var evolver = (function(){
     })
   }
   
+  var modes = {}
+  modes.gray = 'gray'
+  modes.color = 'solid hue erase random'
+  modes.letter = 'letter random-letter'
+  modes.brush = [modes.gray, modes.color, 'smear clone'].join(" ")
+  modes.magic = 'letter random-letter translate scale rotate cycle smear clone'
+
+  if (opt.mode && opt.mode in modes){
+    nopaint.disable_all_tools()
+    nopaint.enable_tools( modes[opt.mode].split(" ") )
+    if (opt.mode == 'magic') {
+      nopaint.tools.translate.opt.weight *= 2
+      nopaint.tools.cycle.opt.weight *= 3
+      nopaint.tools.rotate.opt.weight *= 3
+      nopaint.tools.scale.opt.weight *= 3
+    }
+    nopaint.regenerate_weights()
+  }
+
   console.log(opt)
   
   var step = 0
diff --git a/js/ui/nopaint.js b/js/ui/nopaint.js
index d3741a9..da30e37 100644
--- a/js/ui/nopaint.js
+++ b/js/ui/nopaint.js
@@ -89,6 +89,16 @@ var nopaint = (function(){
   nopaint.add_tool = function(fn){
     nopaint.tools[fn.type] = fn
   }
+  nopaint.disable_all_tools = function(){
+    Object.keys(nopaint.tools).forEach(function(key){
+      nopaint.tools[key].disabled = true
+    })
+  }
+  nopaint.enable_tools = function(keys){
+    keys.forEach(function(key){
+      if (nopaint.tools[key]) nopaint.tools[key].disabled = false
+    })
+  }
   nopaint.get_random_tool = function( last_tool ){
     var n = rand( nopaint.sum )
     for (var i = 0, _len = nopaint.weights.length; i < _len; i++) {
@@ -101,7 +111,11 @@ var nopaint = (function(){
   nopaint.regenerate_weights = function(){
     nopaint.sum = 0
     nopaint.weights = []
-    nopaint.keys = Object.keys( nopaint.tools ).sort(function(a,b){ return nopaint.tools[b].opt.weight-nopaint.tools[a].opt.weight })
+    nopaint.keys = Object.keys( nopaint.tools ).sort(function(a,b){
+      return nopaint.tools[b].opt.weight-nopaint.tools[a].opt.weight
+    }).filter(function(key){
+      return ! nopaint.tools[key].disabled
+    })
     nopaint.keys.forEach(function(key){
       nopaint.sum += nopaint.tools[key].opt.weight
       nopaint.weights.push( nopaint.sum )
@@ -456,7 +470,7 @@ var nopaint = (function(){
   })
 
   var GrayBrush = SolidBrush.extend({
-    type: "hue",
+    type: "gray",
     recolor: function(){
       this.fg = this.bg = rand_gray()
       this.char = " "
@@ -743,6 +757,7 @@ var nopaint = (function(){
     start: function(){
       this.__start()
       this.n = randsign()
+      if (random() < 0.2) this.n *= randint(15)
     },
     shade: function(src, dest, lex, x, y){
       lex.bg += this.n
-- 
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