I did some coding in Scratch to draw a tree and to let it snow in Minecraft world. Remix it and create your own snow world! (You need a Raspberry Pi with Scratch2MCPI installation.)
- drawCircle : Draw a circle using Sin and Cos functions.
- tree : Trigger drawCircle several times in a row while increasing radius of the circle.
- star : Put the topper star.
- snow : Let it snow! It is using the API getHeight to know the y-coordinate (+1) of the highest block at the location (x, z).