Coding the Snake class

Add the single import statement and the member variables to the Snake class. Be sure to study the code; it will give some insight and understanding to the rest of the Snake class:

import java.util.ArrayList;

class Snake {

    // The location in the grid of all the segments
    private ArrayList<Point> segmentLocations;

    // How big is each segment of the snake?
    private int mSegmentSize;

    // How big is the entire grid
    private Point mMoveRange;

    // Where is the center of the screen
    // horizontally in pixels?
    private int halfWayPoint;

    // For tracking movement Heading
    private enum Heading {
        UP, RIGHT, DOWN, LEFT
    }

    // Start by heading to the right
    private Heading heading = Heading.RIGHT;

    // A bitmap for each direction the head can face
    private Bitmap mBitmapHeadRight;
    private Bitmap mBitmapHeadLeft;
    private Bitmap mBitmapHeadUp;
    private Bitmap mBitmapHeadDown;

    // A bitmap for the...