xCoord, yCoord and zCoord should be used as parameters inside

world.getBlockMetadata

.

 

Are you new to Java as well? If so, I strongly recommend to learn Java outside of MC modding first (there are Java tutorials all over the internet) or you'll have a hard time figuring stuff out.

Thank you very much, I managed to get to a point where the model is rotating, I just need to tweak a few numbers. There is only one thing I don't know how to fix. How do I rotate the model's hitbox as well?

You can't rotate a hitbox, because it's an AxisAlignedBoundingBox. You can only change the start and end coordinates of that hitbox in your Block class. Fences do this for example, or stairs, or ladders, you can look at those.

Couldn't you do something like this:

public AxisAlignedBB rotateBoundingBox(AxisAlignedBB bb, int steps){
    	AxisAlignedBB ret = bb.copy();
    	for(int i = 0; i < steps; i++){
    	ret.minX = bb.maxZ;
    	ret.maxX = bb.minX;
    	ret.minZ = bb.maxX;
    	ret.maxZ = bb.minZ;
    	}
    	return ret;
}

 

Not sure if I got the order of the dimension shifting right, but should be universal.