Module replay 

replay: a record of a game re-run by the game’s own rules, with a state hash per step (shuyi_core::state_hash). One record is run twice, which finds luck or state that a run doesn’t own; two records are run side by side. The answer says the first step where the two runs’ hashes differ, and passes if there is none.

What a record is belongs to the game (for a turn game: its seed and its commands, ADR-0003 §2). turns re-runs one over any TurnRules.

A record stamped with what made it (ReplayRun::made) is checked against this build’s stamp (GameTools::made) before anything is compared: one made by another engine, another build of the game or other content is refused, since its runs may differ with no desync, unless the input says any_stamp.

Structs

Difference

Where two runs part.

Record

A record handed to the game: its file’s name and its text.

ReplayInput

What replay re-runs.

ReplayOutput

What replay found.

ReplayRun

One run of a record.

ReplayStep

One step of a run: the state after a command.

Functions

first_difference

The first step where a and b differ, if they do.

replay

replay: input’s records, under root, re-run by game.

text

What replay found, for people.

turns

Re-runs commands from initial by the rules, hashing the state before them and after each: the run of a turn game’s record file. A refused command changes nothing and says why.