Tiling.java

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package rlpark.plugin.rltoys.algorithms.representations.tilescoding.hashing;

import java.io.Serializable;

import rlpark.plugin.rltoys.algorithms.representations.discretizer.Discretizer;
import rlpark.plugin.rltoys.utils.Utils;

public class Tiling implements Serializable {
  private static final long serialVersionUID = 4526997497936063389L;
  public final int hashingIndex;
  private final Discretizer[] discretizers;
  private final int[] inputIndexes;
  private final int[] coordinates;

  public Tiling(int hashingIndex, Discretizer[] discretizers, int[] inputIndexes) {
    assert Utils.checkInstanciated(discretizers);
    this.hashingIndex = hashingIndex;
    this.discretizers = discretizers;
    this.inputIndexes = inputIndexes;
    coordinates = new int[inputIndexes.length];
  }

  public int[] tilesCoordinates(double[] inputs) {
    for (int i = 0; i < inputIndexes.length; i++)
      coordinates[i] = discretizers[i].discretize(inputs[inputIndexes[i]]);
    return coordinates;
  }

  public Discretizer[] discretizers() {
    return discretizers;
  }

  public int[] inputIndexes() {
    return inputIndexes;
  }

  @Override
  public String toString() {
    StringBuilder result = new StringBuilder();
    for (int i = 0; i < discretizers.length; i++)
      result.append("i" + inputIndexes[i] + discretizers[i].toString() + "  ");
    return result.toString();
  }
}