7. Format
So far, the mallets were just simple circles.
They must have handles.
To move a mallet and its handle as a group, you define translate in transform attribute of group tag.
It is not a pair of attributes like cx and cy of circle element.
But you can still handle it as a pair of values by using stasc format tag.
In
Table.ss.xml, for example, transform attribute of your mallet is controlled as follows:
<ss:attribute target="transform">
<ss:format>translate(<ss:item name="YouX">160</ss:item> 400)</ss:format>
</ss:attribute>
Initial value of the transform attribute is "translate(160 400)" and the x coordinate is refered as YouX.