I was thinking of making a tool, that would allow me to take bitmap images and convert them to mc commands, that would recreate these as structures. But unfortunately, mc (java at least, that's what I have) lets me input only one line at a time, which makes this unreasonable. Not even hacks that have to do with falling sand do not seem to work anymore.
Are there mods that would allow me to input a great deal of commands and execute them?
If not, what could be an alternative route?