I have a custom block which rotates depending on players direction but sometimes it doesnt give a poop and rotates in the direction it wants and when it wants

 

AngleVentPipe2.class

@Override
public void onBlockPlacedBy(World world, int x, int y, int z, EntityLivingBase entity, ItemStack itemStack) {
	if(entity == null){
		return;
	}
	TileEntityAngleVentPipe2Block tile = (TileEntityAngleVentPipe2Block) world.getTileEntity(x,y,z);
	tile.direction = MathHelper.floor_double((double)(entity.rotationYaw * 4.0F / 360 / 4));
}

 

TileEntityVentPipe2Block.class

public int direction;

 

TileEntityVentPipe2Renderer.class

 @Override
    public void renderTileEntityAt(TileEntity entity, double x, double y, double z, float scale) {
            GL11.glPushMatrix();
            GL11.glTranslatef((float) x + 0.5F, (float) y + 1.5F, (float) z + 0.5F);

            ResourceLocation textures = (new ResourceLocation(RefStrings.MODID + ":textures/blocks/angleVentPipe2.png")); 

            Minecraft.getMinecraft().renderEngine.bindTexture(textures);

            GL11.glPushMatrix();
            GL11.glRotatef(180F, 0.0F, 0.0F, 1.0F);
            
            //Custom Rotate
            TileEntityAngleVentPipe2Block tile = (TileEntityAngleVentPipe2Block) entity;
            int direction = tile.direction;
            GL11.glRotatef(direction * 90 - 270, 0.0F, 1.0F, 0.0F);
            
            this.model.render((Entity)null, 0.0F, 0.0F, -0.1F, 0.0F, 0.0F, 0.0625F);
            GL11.glPopMatrix();
            GL11.glPopMatrix();
    }

How would I go about doing it with meta data

Could you give me a piece of example code so I can better understand

for(int ox = -1; ox <= 1 && inc; ox++) {
				for(int oz = -1; oz <= 1 && inc; oz++) {
					b = world.getBlock(x+ox, y, z+oz);
					if(b == Blocks.snow_layer || b == this) {
						mm = world.getBlockMetadata(x+ox, y, z+oz);
						if(mm < myMetadata) {
							inc = false;
							world.setBlockMetadataWithNotify(x+ox, y, z+oz, mm+1, 3);
						}
					}

ok and where would this type of code go, I'm sorry for all the questions I just want to get everything down

Where ever you bloody need it.  Seriously.  You want to know the block's metadata?  Get it.  Want to change it?  Set it.  The code snippet I posted is a chunk of code from my own project that is not useful to you except as a demonstration of how that function works.