Raycast / Clip between two blocks

[Sinsei]

I created an item that i can use to check if the player can see the center of a specific block like this:

 

public static boolean lineOfSight(int maxRange, Entity player, BlockPos pos)
    {
        Vec3 vec3 = player.getEyePosition();
        Vec3 vec31 = pos.getCenter();
        if (vec31.distanceTo(vec3) > maxRange) { return false; }
        else
        {
            BlockHitResult result = player.level().clip(new ClipContext(vec3, vec31, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, player));
            return result.getBlockPos().getCenter().equals(pos.getCenter());
        }
    }

 This works as far as i need it.

 

Now i wanted to create a block that can do the same. In this case: If the block can see the center of a specific block. I tried it in a similar way:

    public static boolean lineOfSight(int maxRange, Level pLevel, Vec3 posFrom, BlockPos posTo)
    {
        Vec3 vec31 = posTo.getCenter();
        if (vec31.distanceTo(posFrom) > maxRange) { return false; }
        else
        {
            BlockHitResult result = pLevel.clip(new ClipContext(posFrom, vec31, ClipContext.Block.COLLIDER, ClipContext.Fluid.NONE, null));
            return result.getBlockPos().getCenter().equals(posTo.getCenter());
        }
    }

But obviously this does not work, because this method always returns false. The explanation is simple: The block only can see itself, because i raycast/clip from inside of my block.

 

Is there a simple way to use clip and skip this initial block where the raycast is coming from?

[scientistknight1]

I'd advise moving the starting position to just outside the block in the direction of the target position.