forma

• Index

Examples

• async_automata.lua
• binary_space_partition.lua
• bubbles.lua
• cellular_automata.lua
• convex_hull.lua
• corridors.lua
• isolines.lua
• maxrectangle.lua
• perlin.lua
• raycasting.lua
• readme.lua
• sampling.lua
• voronoi.lua

Modules

• forma.cell
• forma.pattern
• forma.primitives
• forma.automata
• forma.multipattern
• forma.neighbourhood
• forma.raycasting

Readme

• README

corridors.lua

-- Combining cellular automata rules
-- Here the way multiple CA rules can be combined into a single ruleset is
-- demonstrated. A asynchronous cellular automata with a complicated ruleset
-- generates an interesting 'corridor' like pattern.

local primitives    = require('forma.primitives')
local automata      = require('forma.automata')
local neighbourhood = require('forma.neighbourhood')

-- Generate a domain, and an initial state ca with one random seed cell
local domain = primitives.square(80,20)
local ca = domain:sample(1)

-- Complicated ruleset, try leaving out or adding more rules
local moore = automata.rule(neighbourhood.moore(),      "B12/S012345678")
local diag  = automata.rule(neighbourhood.diagonal_2(), "B01/S01234")
local vn    = automata.rule(neighbourhood.von_neumann(),"B12/S01234")
local ruleset = {vn, moore, diag}

repeat
    local converged
    ca, converged = automata.async_iterate(ca, domain, ruleset)
until converged

-- Print corridors to screen using box-building characters
local nbh = neighbourhood.von_neumann()
ca:neighbourhood_categories(nbh)
  :print(nbh:category_label(), domain)