Elementary cellular automaton: Difference between revisions
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...............#.......#...............
..............#.#.....#.#..............
</pre>
=={{header|Rust}}==
<lang Rust>
fn main() {
struct ElementaryCA {
rule: u8,
state: u64,
}
impl ElementaryCA {
fn new(rule: u8) -> (u64, ElementaryCA) {
let out = ElementaryCA {
rule,
state: 1,
};
(out.state, out)
}
fn next(&mut self) -> u64 {
let mut next_state = 0u64;
let state = self.state;
for i in 0..64 {
next_state |= (((self.rule as u64)>>(7 & (state.rotate_left(1).rotate_right(i as u32)))) & 1)<<i;
}
self.state = next_state;
self.state
}
}
fn rep_u64(val: u64) -> String {
let mut out = String::new();
for i in (0..64).rev() {
if 1<<i & val != 0 {
out = out + "\u{2588}";
} else {
out = out + "-";
}
}
out
}
let (i, mut thirty) = ElementaryCA::new(154);
println!("{}",rep_u64(i));
for _ in 0..32 {
let s = thirty.next();
println!("{}", rep_u64(s));
}
}
</lang>
{{out}}
<pre>
---------------------------------------------------------------█
█-------------------------------------------------------------█-
-█-----------------------------------------------------------█--
█-█---------------------------------------------------------█-█-
---█-------------------------------------------------------█----
--█-█-----------------------------------------------------█-█---
-█---█---------------------------------------------------█---█--
█-█-█-█-------------------------------------------------█-█-█-█-
-------█-----------------------------------------------█--------
------█-█---------------------------------------------█-█-------
-----█---█-------------------------------------------█---█------
----█-█-█-█-----------------------------------------█-█-█-█-----
---█-------█---------------------------------------█-------█----
--█-█-----█-█-------------------------------------█-█-----█-█---
-█---█---█---█-----------------------------------█---█---█---█--
█-█-█-█-█-█-█-█---------------------------------█-█-█-█-█-█-█-█-
---------------█-------------------------------█----------------
--------------█-█-----------------------------█-█---------------
-------------█---█---------------------------█---█--------------
------------█-█-█-█-------------------------█-█-█-█-------------
-----------█-------█-----------------------█-------█------------
----------█-█-----█-█---------------------█-█-----█-█-----------
---------█---█---█---█-------------------█---█---█---█----------
--------█-█-█-█-█-█-█-█-----------------█-█-█-█-█-█-█-█---------
-------█---------------█---------------█---------------█--------
------█-█-------------█-█-------------█-█-------------█-█-------
-----█---█-----------█---█-----------█---█-----------█---█------
----█-█-█-█---------█-█-█-█---------█-█-█-█---------█-█-█-█-----
---█-------█-------█-------█-------█-------█-------█-------█----
--█-█-----█-█-----█-█-----█-█-----█-█-----█-█-----█-█-----█-█---
-█---█---█---█---█---█---█---█---█---█---█---█---█---█---█---█--
█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-█-
----------------------------------------------------------------
</pre>
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