// SampleGridTester.java
// A sample tester program for CS 10 assignment 3, part 1, Fall 2008.
// We might use a different one to grade your ColorGrid.java.
// cmc, 10/21/08

import java.awt.Color;

public class SampleGridTester {

    public static void main(String[] args) {

        ColorGrid grid = new ColorGrid(40, 40, Color.GREEN.darker());
        int rows = grid.rows();
        int columns = grid.columns();
        for (int i = 10; i < rows-10; i++) {
            for (int j = 10; j < columns-10; j++) {
                int red = 255 * i * j / 1000;
                int blue = 255 - red;
                grid.set(i, j, new Color(red, 0, blue));
            }
            grid.brighten(i, i);
            grid.darken(i, columns - i - 1);
        }

        grid.brighten(0, 0, 0, 38);
        grid.brighten(1, 0, 38, 0);
        grid.darken(39, 1, 39, 39);
        grid.darken(1, 39, 38, 39);

        grid.set(10, 10, 10, columns-11, Color.YELLOW);
        grid.set(rows-11, 10, rows-11, columns-11, Color.YELLOW);
        grid.set(11, 10, rows-12, 10, Color.YELLOW);
        grid.set(11, columns-11, rows-12, columns-11, Color.YELLOW);

        Color[][] colors = grid.grid();
        CS10Display.showGrid(colors);

        // verify the grid() method returns a *copy* of Color array
        Color[][] copy = grid.grid();
        if (copy == colors)
            System.out.println("grid() method returns original array, not a copy");
    }    
}