hi ,
I recently learned how to make a snow bomb, all you have to do is put snow, put your Ctype to "sing" and set your tmp to 70. I tried to add it to one of my bombs, the script can place snow but don't want to change Ctype and tmp property. and no error is reported.
here the script : https://pastebin.com/7CLJyc2K
don't pay attention to some variable name :/