From 3fc4bf4a2ea7c6cff9810b76964dd3c1388c0b3f Mon Sep 17 00:00:00 2001 From: Eduardo Pedroni Date: Tue, 11 Feb 2014 08:30:36 +0000 Subject: Updated README, made a few changes to Chromosome's mutation methods, will be working on that throughout the day --- src/jcgp/population/Chromosome.java | 46 +++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) (limited to 'src/jcgp/population') diff --git a/src/jcgp/population/Chromosome.java b/src/jcgp/population/Chromosome.java index 195b95c..0dc3ff9 100644 --- a/src/jcgp/population/Chromosome.java +++ b/src/jcgp/population/Chromosome.java @@ -123,5 +123,51 @@ public class Chromosome { return nodes[index / Parameters.getColumns()][index % Parameters.getColumns()]; } } + + /** + * Returns a random allowed connection respecting levels back. + * This method may always pick inputs, as they can be picked + * regardless of the column. + * + * @param column the column to use as reference + * @return a random connection + */ + public Connection getRandomConnection(int column) { + + + + return null; + + } + + /** + * Returns a random allowed connection. + * + * This method may always pick inputs, as they can be picked + * regardless of the column. + * + * TODO optimise for less random generations + * + * @param column the column to use as reference + * @param levelsBack whether or not to respect levels back + * @return a random connection + */ + public Connection getRandomConnection(int column, boolean levelsBack) { + + if (levelsBack) { + return getRandomConnection(chromosome, column); + } else { + // choose input or node + int connectionType = Utilities.getRandomInt(inputs.length + (nodes.length * column)); + if (connectionType < inputs.length) { + // input + return chromosome.getInput(getRandomInt(Parameters.getInputs())); + } else { + // node + return chromosome.getNode(getRandomInt(Parameters.getRows()), getRandomInt(column)); + } + } + + } } -- cgit v1.2.3