/*
* Encog(tm) Core v3.4 - Java Version
* http://www.heatonresearch.com/encog/
* https://github.com/encog/encog-java-core
* Copyright 2008-2016 Heaton Research, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* For more information on Heaton Research copyrights, licenses
* and trademarks visit:
* http://www.heatonresearch.com/copyright
*/
package org.encog.ca.program.conway;
import org.encog.ca.program.basic.BasicProgram;
import org.encog.ca.program.basic.Movement;
import org.encog.ca.universe.Universe;
import org.encog.ca.universe.UniverseCell;
public class ConwayProgram extends BasicProgram {
public ConwayProgram(Universe theSourceUniverse) {
super(Movement.MOVE_8WAY);
this.sourceUniverse = theSourceUniverse;
}
private Universe sourceUniverse;
private Universe targetUniverse;
public void iteration() {
int height = this.sourceUniverse.getRows();
int width = this.targetUniverse.getColumns();
for(int row = 0; row< height; row++ ) {
for(int col = 0; col<width; col++) {
processCell(row,col);
}
}
}
public void processCell(int row, int col) {
Movement[] movements = getMovements();
UniverseCell thisCell = this.sourceUniverse.get(row,col);
UniverseCell targetCell = this.targetUniverse.get(row,col);
int total = 0;
for(Movement movement : movements ) {
int otherRow = row+movement.getRowMovement();
int otherCol = col+movement.getColumnmMovement();
if( this.sourceUniverse.isValid(otherRow,otherCol) ) {
UniverseCell otherCell = this.sourceUniverse.get(otherRow,otherCol);
if( ((int)otherCell.get(0))>0 ) {
total++;
}
}
}
boolean alive = ((int)thisCell.get(0))>0;
if( alive ) {
// 1. Any live cell with fewer than two live neighbors dies, as if caused by under-population.
if( total<2 ) {
alive = false;
}
// 2. Any live cell with two or three live neighbors lives on to the next generation. (not needed)
// 3. Any live cell with more than three live neighbors dies, as if by overcrowding.
if( alive && total>3 ) {
alive = false;
}
} else {
// 4. Any dead cell with exactly three live neighbors becomes a live cell, as if by reproduction.
if( total==3 ) {
alive = true;
}
}
if( alive ) {
targetCell.set(0, 1.0);
} else {
targetCell.set(0, 0.0);
}
}
@Override
public void randomize() {
// TODO Auto-generated method stub
}
/**
* @return the sourceUniverse
*/
public Universe getSourceUniverse() {
return sourceUniverse;
}
/**
* @param sourceUniverse the sourceUniverse to set
*/
public void setSourceUniverse(Universe sourceUniverse) {
this.sourceUniverse = sourceUniverse;
}
/**
* @return the targetUniverse
*/
public Universe getTargetUniverse() {
return targetUniverse;
}
/**
* @param targetUniverse the targetUniverse to set
*/
public void setTargetUniverse(Universe targetUniverse) {
this.targetUniverse = targetUniverse;
}
}