Per-cell context handed to rules that need to know "where" and "when" they are firing. More...

#include <ca-traits.H>

Collaboration diagram for Aleph::CA::Cell_Context< Rank >:

Public Attributes
std::size_t	step = 0
	Index of the step that is currently being computed (0-based).

Coord_Vec< Rank >	coord {}
	Cell coordinate inside the current frame.

Detailed Description

template<std::size_t Rank>
struct Aleph::CA::Cell_Context< Rank >

Per-cell context handed to rules that need to know "where" and "when" they are firing.

Phase 8 introduces stochastic rules that derive deterministic, per-cell pseudo-random number generators from (step, coord). The CA engine fills a Cell_Context<Rank> once per cell and forwards it to the rule via apply_rule(). Deterministic rules remain unaffected because apply_rule() only forwards the context when the rule explicitly accepts it.

Template Parameters