Module rip 

RIPscrip 1.54 graphics: the vector scenes, buttons and clickable mouse regions of RIPterm-era BBSes, drawn on a 640x350 EGA canvas under the 80x43 text screen.

A RIP line starts with !| at the beginning of a line and holds commands separated by |, each a command letter (with a level digit before it for level 1 commands) and its parameters, mostly two-digit base-36 “MegaNums”. A backslash at the end of a line continues it on the next; \|, \\ and \! are literal characters in text.

Drawing follows the Borland BGI the format was built on: colors are indices into a 16-entry palette of the EGA’s 64 colors, lines have a style and thickness, areas are filled with one of BGI’s patterns, and circles are corrected for the EGA’s tall pixels. Text uses the 8x8 font, scaled up for larger sizes; BGI’s vector fonts (Borland’s own files) are drawn in it too.

Left out: icon files (1I, 1W), scene files and file queries (1R, 1F), variables (1D) and RIP’s block-mode file transfers.

Structs

MouseRegion

A clickable area: when clicked, text is sent to the BBS.

Rip

Enums

Feed

What Rip::byte did with a byte.

Constants

COLS

The text screen over the canvas: 80x43 in the 8x8 font.

HEIGHT

ROWS

VERSION_REPLY

What a RIP terminal answers to ESC [ !: RIPscrip, version 1.54.

WIDTH

Functions

ega_rgb

One of the EGA’s 64 colors (bits: secondary R G B, primary R G B).