Solved Testing for blocks in vision

How would I check to see if a group of blocks are in a player's vision, not just his/her target block?

 

Try with the method getLineOfSight from LivingEntity. Player is one of them.

 

Here's a method I use in one of my plugins to check if a player can see a block

Code:java

 
public boolean canSee(Player player, Location loc2)
{
    Location loc1 = player.getEyeLocation();
    Location locat = loc2.clone();
    Vector toBlock = locat.subtract(loc1).toVector().normalize();
    Vector playerLook = loc1.getDirection().normalize();
    float angle = toBlock.angle(playerLook);
 
    return (angle < 1.0F) && //Checks if the block can be in the players FOV
                (((CraftWorld) loc1.getWorld()).getHandle().a(Vec3D.a(loc1.getX(), loc1.getY() +
                player.getEyeHeight(), loc1.getZ()), Vec3D.a(loc2.getX(), loc2.getY(), loc2.getZ())) == null);
                //Checks if there are no blocks between the player and the block. Doesn't take into account transparent blocks
}