Short:        Amiga port of a popular logic game
Author:       Grzegorz Kraszewski, MorphOS port by uploader
Uploader:     polluks+aminet sdf lonestar org (Stefan Haubenthal)
Type:         game/think
Version:      0.1
Architecture: ppc-morphos
Kurz:         Amiga-Port eines beliebten Logikspiels
URL:          https://www.chiark.greenend.org.uk/~sgtatham/puzzles/doc/untangle.html

# Untangle
Amiga port of a popular logic game.

## The Game
Untangle is a logic puzzle, where the player faces a set of dots connected
by lines. Usually the set is untidy, many lines cross another ones. The
game goal is to untangle lines by moving dots, so finally no line cross
another.

## Project Goals
* Game should be system friendly, working in a window on Workbench, using
  only documented APIs.
* Minimum system version is 3.0.
* RTG (graphic cards) should be supported out of the box. Without dedicated
  code paths and explicit opening of RTG libraries, if possible.
* Would be nice if it works on MorphOS, AmigaOS 4, AROS using M68k
  emulation built into these operating systems.
* Should be comfortably playable on stock A1200, stock A500 is not a Holy
  Grail, but why not.

## Building
Project is developed on a real Amiga 1200 with 68020 @ 28 MHz and 64 MB
fast RAM. Compiler used is native GCC 2.95.3 with usual GeekGadgets
environment, and "make" tool. To build the game just enter

    make

in a shell.
At the moment test level file ("level.iff") is built manually from
assembler source "level.s" with

vasm -Fbin level.s -o level.iff

It implies that "vasm" assembler is also installed. This is a temporary
solution, I plan to add feature of creation and saving levels in the game
itself.

## Installation
Executable may be copied anywhere. "level.iff" file should be in the same
directory as executable. It runs from shell as well as from Workbench. For
now there is no icon for it.

## Usage
After starting select "New" from menu (or `RAmiga + n` from keyboard) to
load the test level.

## Requirements
* Amiga with any processor (code is compiled for 68000).
* Kickstart/Workbench 3.0 or higher.
* For now there is no detection of non-square pixel display modes, so dots
  are distorted on, for example, "PAL HighRes".