/*
* Artificial Intelligence for Humans
* Volume 2: Nature Inspired Algorithms
* Java Version
* http://www.aifh.org
* http://www.jeffheaton.com
*
* Code repository:
* https://github.com/jeffheaton/aifh
*
* Copyright 2014 by Jeff Heaton
*
* 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 com.heatonresearch.aifh.examples.capstone.alife.milestone3;
import com.heatonresearch.aifh.examples.capstone.alife.milestone1.PlantUniverse;
import com.heatonresearch.aifh.examples.capstone.alife.milestone1.PlantUniverseCell;
import com.heatonresearch.aifh.examples.capstone.alife.milestone2.PlantGrowth;
import com.heatonresearch.aifh.examples.capstone.alife.milestone2.PlantPhysics;
import com.heatonresearch.aifh.genetic.genome.DoubleArrayGenome;
import com.heatonresearch.aifh.learning.MLMethod;
import com.heatonresearch.aifh.learning.score.ScoreFunction;
/**
* This class is used to score the plant. Plants are scored for how green they are after a specified
* number of iterations.
*/
public class PlantScore implements ScoreFunction {
/**
* {@inheritDoc}
*/
@Override
public double calculateScore(final MLMethod algo) {
DoubleArrayGenome genome = (DoubleArrayGenome) algo;
PlantUniverse universe = new PlantUniverse();
universe.reset();
PlantPhysics physics = new PlantPhysics();
PlantGrowth growth = new PlantGrowth();
// Run the generations.
for (int i = 0; i < PlantUniverse.EVALUATION_CYCLES; i++) {
physics.runPhysics(universe);
growth.runGrowth(universe, genome.getData());
}
// Count the amount of green.
int count = 0;
double sum = 0;
for (int row = 0; row < PlantUniverse.UNIVERSE_HEIGHT; row++) {
for (int col = 0; col < PlantUniverse.UNIVERSE_WIDTH; col++) {
PlantUniverseCell cell = universe.getCell(row, col);
if (cell.isAlive()) {
if (row >= PlantUniverse.GROUND_LINE) {
sum += 0.5;
} else {
sum += cell.getLeafyness();
}
}
count++;
}
}
return sum / count;
}
/**
* {@inheritDoc}
*/
@Override
public boolean shouldMinimize() {
return false; //To change body of implemented methods use File | Settings | File Templates.
}
}