#True and #False

#True and #False are on/off values: #True for yes, on, done, #False for no, off, not yet. They make conditions short and easy to read.

Without them, a setting is usually written as text:

set %usemagery yes

if %usemagery = yes
  display ok Heal with Magery.
if %usemagery = no
  display ok Heal with bandages.
halt

With them, the condition reads like a sentence:

set %usemagery #True

if %usemagery
  display ok Heal with Magery.
if ! %usemagery
  display ok Heal with bandages.
halt

if %usemagery runs the next line when %usemagery is true; if ! %usemagery turns the test around and runs it when it is false.

Why it has to be #True

#True is the number -1 and #False is 0, the same values comparisons such as %a = 1 give. if, while and until treat only -1 as true. So:

%flag holds	if %flag	if ! %flag
#True (-1)	runs	skips
#False (0)	skips	runs
Text, such as yes	skips	runs: text counts as 0, so yes behaves like #False
1 or any other number	skips	also skips

Set flags with #True and #False, never with yes or 1, and if %flag / if ! %flag always do what they say.

Based on a quick guide by Una from the EasyUO wiki.

Based on the EasyUO wiki, edited for EasyUO Reforged. This text is available under the GNU Free Documentation License 1.2.