Not Tested

function onScriptLoad()
{
a <- CreateSprite("100%.png", 900, 160, 0, 0, 0, 255);
b <- CreateSprite("90%.png", 900, 160, 0, 0, 0, 255);
c <- CreateSprite("80%.png", 900, 160, 0, 0, 0, 255);
d <- CreateSprite("70%.png", 900, 160, 0, 0, 0, 255);
e <- CreateSprite("60%.png", 900, 160, 0, 0, 0, 255);
f <- CreateSprite("50%.png", 900, 160, 0, 0, 0, 255);
g <- CreateSprite("40%.png", 900, 160, 0, 0, 0, 255);
h <- CreateSprite("30%.png", 900, 160, 0, 0, 0, 255);
i <- CreateSprite("20%.png", 900, 160, 0, 0, 0, 255);
j <- CreateSprite("10%.png", 900, 160, 0, 0, 0, 255);
k <- CreateSprite("0%.png", 900, 160, 0, 0, 0, 255);
}

function onPlayerHealthChange( player, lastHP, newHP )
{
if ( ( player.Health < 100 ) || ( player.Health == 100 ) )
{
k.HideFromPlayer( player );
a.ShowForPlayer(player);
}
if ( player.Health < 90 )
{
a.HideFromPlayer( player );
b.ShowForPlayer(player);
}
if ( player.Health < 80 )
{
b.HideFromPlayer( player );
c.ShowForPlayer(player);
}
if ( player.Health < 70 )
{
c.HideFromPlayer( player );
d.ShowForPlayer(player);
}
if ( player.Health < 60 )
{
d.HideFromPlayer( player );
e.ShowForPlayer(player);
}
if ( player.Health < 50 )
{
e.HideFromPlayer( player );
f.ShowForPlayer(player);
}
if ( player.Health < 40 )
{
f.HideFromPlayer( player );
g.ShowForPlayer(player);
}
if ( player.Health < 30 )
{
g.HideFromPlayer( player );
h.ShowForPlayer(player);
}
if ( player.Health < 20 )
{
h.HideFromPlayer( player );
i.ShowForPlayer(player);
}
if ( player.Health < 10 )
{
i.HideFromPlayer( player );
j.ShowForPlayer(player);
}
if ( player.Health == 0 )
{
j.HideFromPlayer( player );
k.ShowForPlayer( player );
}
}