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added random tetrimo gen

master
Edward Shen 2019-10-28 02:42:09 -04:00
parent be2dec9584
commit 036953fd2c
Signed by: edward
GPG Key ID: F350507060ED6C90
4 changed files with 156 additions and 2 deletions
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95
Cargo.lock generated Normal file
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@ -0,0 +1,95 @@
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# It is not intended for manual editing.
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1
Cargo.toml
View File

@ -7,3 +7,4 @@ edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.7"

20
src/main.rs
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@ -1,3 +1,19 @@
fn main() {
println!("Hello, world!");
mod random;
#[derive(Debug, Copy, Clone)]
pub enum Tetrino {
I,
O,
T,
S,
Z,
J,
L,
}
fn main() {
let mut rs = random::RandomSystem::new();
for _ in 0..1000000 {
rs.get_tetrino();
}
}

42
src/random.rs Normal file
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@ -0,0 +1,42 @@
use crate::Tetrino;
use rand::{rngs::ThreadRng, seq::SliceRandom, thread_rng};
pub struct RandomSystem {
rng: ThreadRng,
bag: [Tetrino; 7],
cur_pos: usize,
}
impl RandomSystem {
pub fn new() -> Self {
let rng = thread_rng();
RandomSystem {
rng: rng,
bag: [Tetrino::I; 7],
cur_pos: 0,
}
}
pub fn get_tetrino(&mut self) -> Tetrino {
if self.cur_pos == 0 {
self.refresh_bag();
}
let to_return = self.bag[self.cur_pos];
self.cur_pos = (self.cur_pos + 1) % 7;
to_return
}
fn refresh_bag(&mut self) {
self.bag = [
Tetrino::I,
Tetrino::O,
Tetrino::T,
Tetrino::S,
Tetrino::Z,
Tetrino::J,
Tetrino::L,
];
self.bag.shuffle(&mut self.rng);
self.cur_pos = 0;
}
}