package kata.gameoflife.a20170806;

// Oxford:
// "Establish or indicate who or what (someone or something) is."
// This could also be LocateCell.
// Oxford:
// "Discover the exact place or position of."

/**
  * Game of Life Kata.
  * Copyright (c) 2017, Peter Kofler, licensed under BSD License.
  */
public class LocateCell {

    final int x;
    final int y;

    public LocateCell(int x, int y) {
        this.x = x;
        this.y = y;
    }

    // A class with no methods. What does it do? At the moment nothing - it is a dummy.
    // So we do not know.

    @Override
    public int hashCode() {
        return 31 * x + y;
    }

    @Override
    public boolean equals(Object o) {
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        LocateCell that = (LocateCell) o;
        return this.x == that.x && this.y == that.y;
    }

    // P has two integers, internal, and it can return a list of all coordinates
    // around it. What does it do? It calculates the positions of the adjacent cells.
    // What is the verb for that? Hm. Maybe being a coordinate is a different thing,
    // that would support two classes. Because equals is a method.

    @Override
    public String toString() {
        return "[" + x + "," + y + "]";
    }
}