class Text
Text renderer using Unicode half-height block characters
Definitions
BLOCKS
Unicode block characters for different combinations
Implementation
BLOCKS = {
[false, false] => " ", # Both light - single space
[false, true] => "▄", # Top light, bottom dark
[true, false] => "▀", # Top dark, bottom light
[true, true] => "█" # Both dark - full block
}.freeze