I want to write a game which runs in a terminal. I do some terminal coloring and wanted to use some unicode characters for nice ascii art "graphics". But a lot of unicode characters aren't supported in the linux terminal (the non-X terminal, I don't know how you call it... VT100? I mean the terminal which uses the text mode for output, no graphic mode, so the same font as in bios is used to display the text.)
For example, I wanted to draw half character "pixels" using the "half block" characters U+2580 (▀) and U+2584 (▄) but these are not supported in the terminal. (These are only examples - I want to use a lot more special characters...)
Which characters does this font support? Is there any document or table listing these characters? Is this device-dependent or is there any "standard"?