//- put in pathfinder file
//- change all uses of getBlockId and getBlockMetadata that use the world reference to these interface functions

private synchronized int getBlockId(int x, int y, int z) {
        if (!ModLoader.getMinecraftInstance().theWorld.checkChunksExist(x, 0, z , x, 128, z)) return 10;
        return ModLoader.getMinecraftInstance().theWorld.getBlockId(x, y, z);
    }

    private synchronized int getBlockMetadata(int x, int y, int z) {
        if (!ModLoader.getMinecraftInstance().theWorld.checkChunksExist(x, 0, z , x, 128, z)) return 0;
        return ModLoader.getMinecraftInstance().theWorld.getBlockMetadata(x, y, z);
    }