//TreeDemo.java

/**
 A program that draws a fir tree composed of a triangle and
 a rectangle, both drawn using keyboard characters.
*/
public class TreeDemo
{
    public static final int INDENT = 5;
    public static final int TREE_TOP_WIDTH = 21;// must be odd
    public static final int TREE_BOTTOM_WIDTH = 4;
    public static final int TREE_BOTTOM_HEIGHT = 4;

    public static void main(String[] args)
    {
        drawTree(TREE_TOP_WIDTH, TREE_BOTTOM_WIDTH, TREE_BOTTOM_HEIGHT);
    }

    public static void drawTree(int topWidth, int bottomWidth, int bottomHeight)
    {
        System.out.println("       Save the Redwoods!");
        TriangleInterface treeTop = new Triangle(INDENT, topWidth);
        drawTop(treeTop);

        RectangleInterface treeTrunk =
            new Rectangle(INDENT + (topWidth / 2) - (bottomWidth / 2),
                          bottomHeight, bottomWidth);
        drawTrunk(treeTrunk);
    }

    private static void drawTop(TriangleInterface treeTop)
    {
        treeTop.drawAt(1);
    }

    private static void drawTrunk(RectangleInterface treeTrunk)
    {
        treeTrunk.drawHere(); // or treeTrunk.drawAt(0);
    }
}