private void submerge()
{
GreenfootImage background = getBackground();
colorTint++;
background.setColor(new Color(colorTint,colorTint,colorTint));
}
private void submerge()
{
GreenfootImage background = getBackground();
colorTint++;
background.setColor(new Color(colorTint,colorTint,colorTint));
}setBackground(background);