Physics-Terrain

A field of cells generated from a seed, with a ground, overhangs and caves;
bodies of one size that stand on it, walk up and down three cells at a time,
jump and fall; projectiles that fly under gravity and wind, bounce, split in
the air or burst on contact or on a fuse; and explosions that carve a disc out
of the ground, hurt everything in reach and throw it. An integer engine in C,
perl-free, with an XS door whose every method is an XSUB and a versioned C ABI
(include/pt_abi.h) so another module can drive a turn with no Perl frame in
between. It knows nothing about any game; an adapter places its squads by seat
number, plays a turn from an input log or a tick at a time, and reads back the
events in order, the craters, the traces and the end state.

Everything is fixed point at 1/256 of a cell, every division floors, and the
same inputs give the same integers on every platform. The fixtures under t/
were recorded by the JavaScript prototype the engine was transliterated from
and are reproduced bit for bit, which is what lets a browser simulate a turn
live and a server replay the same input log to the same result.

INSTALLATION

To install this module, run the following commands:

	perl Makefile.PL
	make
	make test
	make install

SUPPORT AND DOCUMENTATION

After installing, you can find documentation for this module with the
perldoc command.

    perldoc Physics::Terrain

You can also look for information at:

    RT, CPAN's request tracker (report bugs here)
        https://rt.cpan.org/NoAuth/Bugs.html?Dist=Physics-Terrain

    Search CPAN
        https://metacpan.org/release/Physics-Terrain


LICENSE AND COPYRIGHT

This software is Copyright (c) 2026 by LNATION <email@lnation.org>.

This is free software, licensed under:

  The Artistic License 2.0 (GPL Compatible)