package s3mstest.wormgame;

import javax.microedition.lcdui.Graphics;


public class WormFood {
    private int cellX;
    private int cellY;
    private int x;
    private int y;
    private long arenaSize;


    /**
     * Constructor for worm food object.
     * @param pit pit to which the food is associated. (unused currently)
     */
    public WormFood(WormPit pit) {
        arenaSize = WormPit.CellWidth * WormPit.CellHeight;
        regenerate();
    }


    public boolean isAt(int cx, int cy) {
        return ((this.cellX == cx) && (this.cellY == cy));
    }


    public int getX() {
        return cellX;
    }


    public int getY() {
        return cellY;
    }


    public void regenerate() {
        int loc = (int)(System.currentTimeMillis() % arenaSize);
        cellY = (int)(loc / WormPit.CellWidth);
        cellX = (int)(loc % WormPit.CellHeight);
        y = cellY * WormPit.CELL_SIZE; // Cache to save time during paint
        x = cellX * WormPit.CELL_SIZE; // Cache to save time during paint
                                       // If food was generated outside of the board, try a new location

        if (!WormPit.isInBounds(cellX, cellY)) {
            regenerate();
        }
    }

    /**
     * Paint the piece of food.
     * @param g graphics object to receive rendering of food object
     */
    public void paint(Graphics g) {
        g.setColor(WormPit.FOOD_COLOUR);
        g.fillRect(x + 1, y + 1, WormPit.CELL_SIZE - 2, WormPit.CELL_SIZE - 2);
        g.setColor(WormPit.DRAW_COLOUR);
        g.drawRect(x, y, WormPit.CELL_SIZE - 1, WormPit.CELL_SIZE - 1);
    }
}