starting to make Teliva apps more testable

Tasteful apps should only perform side-effects through 'window'
arguments rather than the 'curses' module directly. It's ok however to
read constants like curses.A_NORMAL or curses.stdscr().

There are some limitations, unfortunately. Ncurses wasn't designed with
testability in mind. For example, there's no way to curs_set or
assume_default_colors without the 'curses' module. Oh well.

1 files changed, 4 insertions, 4 deletions

diff --git a/life.tlv b/life.tlv
index 804ae49..e592669 100644
--- a/life.tlv
+++ b/life.tlv
@@ -110,14 +110,14 @@
   render:
     >function render(window)
     >  window:clear()
-    >  curses.attron(curses.color_pair(1))
+    >  window:attron(curses.color_pair(1))
     >  for line=1,lines do
     >    for col=1,cols do
     >      window:addstr(utf8(glyph[grid_char_to_glyph_index(grid_char(line, col))]))
     >    end
     >  end
-    >  curses.attroff(curses.color_pair(1))
-    >  curses.refresh()
+    >  window:attroff(curses.color_pair(1))
+    >  window:refresh()
     >end
 - __teliva_timestamp: original
   state:
@@ -291,7 +291,7 @@
     >  -- main loop
     >  while true do
     >    render(window)
-    >    c = curses.getch()
+    >    c = window:getch()
     >    update(window, c)
     >    step()
     >  end