Compare commits
8 Commits
day3-part2
...
master
| Author | SHA1 | Date |
|---|---|---|
 Avril
|
774c71d5d4
|
2 years ago |
|
Avril
|
6a2aefc1d9
|
2 years ago |
|
Avril
|
bfccf7a426
|
2 years ago |
|
Avril
|
2eb60791bf
|
2 years ago |
|
Avril
|
99a39cf5dc
|
2 years ago |
|
Avril
|
253ee34a91
|
2 years ago |
|
Avril
|
873fe958fd
|
2 years ago |
|
Avril
|
2ec0a5ba7a
|
2 years ago |
@ -0,0 +1,2 @@
|
||||
# Rework a more efficient one usinc `memchr2()`
|
||||
We can `memchr2('\n','\n', mapped_file_memory)` on a `mmap()`'d input file to find the grouping seperators, and process each group in parallel
|
||||
@ -0,0 +1,312 @@
|
||||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
||||
|
||||
[[package]]
|
||||
name = "addr2line"
|
||||
version = "0.19.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a76fd60b23679b7d19bd066031410fb7e458ccc5e958eb5c325888ce4baedc97"
|
||||
dependencies = [
|
||||
"gimli",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "adler"
|
||||
version = "1.0.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f26201604c87b1e01bd3d98f8d5d9a8fcbb815e8cedb41ffccbeb4bf593a35fe"
|
||||
|
||||
[[package]]
|
||||
name = "aho-corasick"
|
||||
version = "0.7.20"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cc936419f96fa211c1b9166887b38e5e40b19958e5b895be7c1f93adec7071ac"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "arrayvec"
|
||||
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|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8da52d66c7071e2e3fa2a1e5c6d088fec47b593032b254f5e980de8ea54454d6"
|
||||
|
||||
[[package]]
|
||||
name = "atty"
|
||||
version = "0.2.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
|
||||
dependencies = [
|
||||
"hermit-abi",
|
||||
"libc",
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "backtrace"
|
||||
version = "0.3.67"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "233d376d6d185f2a3093e58f283f60f880315b6c60075b01f36b3b85154564ca"
|
||||
dependencies = [
|
||||
"addr2line",
|
||||
"cc",
|
||||
"cfg-if",
|
||||
"libc",
|
||||
"miniz_oxide",
|
||||
"object",
|
||||
"rustc-demangle",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "cc"
|
||||
version = "1.0.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
|
||||
|
||||
[[package]]
|
||||
name = "cfg-if"
|
||||
version = "1.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
|
||||
|
||||
[[package]]
|
||||
name = "color-eyre"
|
||||
version = "0.6.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5a667583cca8c4f8436db8de46ea8233c42a7d9ae424a82d338f2e4675229204"
|
||||
dependencies = [
|
||||
"backtrace",
|
||||
"eyre",
|
||||
"indenter",
|
||||
"once_cell",
|
||||
"owo-colors",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "day14"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"color-eyre",
|
||||
"jemallocator",
|
||||
"linebuffer",
|
||||
"log",
|
||||
"pretty_env_logger",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "env_logger"
|
||||
version = "0.7.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "44533bbbb3bb3c1fa17d9f2e4e38bbbaf8396ba82193c4cb1b6445d711445d36"
|
||||
dependencies = [
|
||||
"atty",
|
||||
"humantime",
|
||||
"log",
|
||||
"regex",
|
||||
"termcolor",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "eyre"
|
||||
version = "0.6.8"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "4c2b6b5a29c02cdc822728b7d7b8ae1bab3e3b05d44522770ddd49722eeac7eb"
|
||||
dependencies = [
|
||||
"indenter",
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||||
"once_cell",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "fs_extra"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
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|
||||
[[package]]
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||||
name = "gimli"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dec7af912d60cdbd3677c1af9352ebae6fb8394d165568a2234df0fa00f87793"
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[[package]]
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name = "hermit-abi"
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version = "0.1.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
|
||||
dependencies = [
|
||||
"libc",
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]
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||||
|
||||
[[package]]
|
||||
name = "humantime"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "df004cfca50ef23c36850aaaa59ad52cc70d0e90243c3c7737a4dd32dc7a3c4f"
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dependencies = [
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"quick-error",
|
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]
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|
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[[package]]
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name = "indenter"
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version = "0.3.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ce23b50ad8242c51a442f3ff322d56b02f08852c77e4c0b4d3fd684abc89c683"
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[[package]]
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name = "jemalloc-sys"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"cc",
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"fs_extra",
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"libc",
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]
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|
||||
[[package]]
|
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name = "jemallocator"
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version = "0.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "16c2514137880c52b0b4822b563fadd38257c1f380858addb74a400889696ea6"
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dependencies = [
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||||
"jemalloc-sys",
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"libc",
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]
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[[package]]
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name = "libc"
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version = "0.2.138"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
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||||
|
||||
[[package]]
|
||||
name = "linebuffer"
|
||||
version = "0.1.1"
|
||||
dependencies = [
|
||||
"arrayvec",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "log"
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||||
version = "0.4.17"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "memchr"
|
||||
version = "2.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
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[[package]]
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name = "miniz_oxide"
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version = "0.6.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b275950c28b37e794e8c55d88aeb5e139d0ce23fdbbeda68f8d7174abdf9e8fa"
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dependencies = [
|
||||
"adler",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "object"
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version = "0.30.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "239da7f290cfa979f43f85a8efeee9a8a76d0827c356d37f9d3d7254d6b537fb"
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||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "once_cell"
|
||||
version = "1.16.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
|
||||
|
||||
[[package]]
|
||||
name = "owo-colors"
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||||
version = "3.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c1b04fb49957986fdce4d6ee7a65027d55d4b6d2265e5848bbb507b58ccfdb6f"
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||||
|
||||
[[package]]
|
||||
name = "pretty_env_logger"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "926d36b9553851b8b0005f1275891b392ee4d2d833852c417ed025477350fb9d"
|
||||
dependencies = [
|
||||
"env_logger",
|
||||
"log",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quick-error"
|
||||
version = "1.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "a1d01941d82fa2ab50be1e79e6714289dd7cde78eba4c074bc5a4374f650dfe0"
|
||||
|
||||
[[package]]
|
||||
name = "regex"
|
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version = "1.7.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e076559ef8e241f2ae3479e36f97bd5741c0330689e217ad51ce2c76808b868a"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-syntax"
|
||||
version = "0.6.28"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "456c603be3e8d448b072f410900c09faf164fbce2d480456f50eea6e25f9c848"
|
||||
|
||||
[[package]]
|
||||
name = "rustc-demangle"
|
||||
version = "0.1.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7ef03e0a2b150c7a90d01faf6254c9c48a41e95fb2a8c2ac1c6f0d2b9aefc342"
|
||||
|
||||
[[package]]
|
||||
name = "termcolor"
|
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version = "1.1.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
|
||||
dependencies = [
|
||||
"winapi-util",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi"
|
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version = "0.3.9"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
|
||||
dependencies = [
|
||||
"winapi-i686-pc-windows-gnu",
|
||||
"winapi-x86_64-pc-windows-gnu",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-i686-pc-windows-gnu"
|
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version = "0.4.0"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||
|
||||
[[package]]
|
||||
name = "winapi-util"
|
||||
version = "0.1.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
|
||||
dependencies = [
|
||||
"winapi",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "winapi-x86_64-pc-windows-gnu"
|
||||
version = "0.4.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
||||
@ -0,0 +1,29 @@
|
||||
[package]
|
||||
name = "day14"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[profile.release]
|
||||
opt-level = 3
|
||||
lto = "fat"
|
||||
codegen-units = 1
|
||||
strip=true
|
||||
|
||||
[profile.symbols]
|
||||
inherits="release"
|
||||
#incremental=true
|
||||
strip=false
|
||||
|
||||
[features]
|
||||
default= ["jemallocator"]
|
||||
|
||||
status = ["jemallocator/profiling", "pretty_env_logger"]
|
||||
|
||||
[dependencies]
|
||||
color-eyre = { version = "0.6.2", default-features = false }
|
||||
jemallocator = { version = "0.5.0", optional = true }
|
||||
linebuffer = { path = "/home/avril/work/linebuffer" }
|
||||
log = "0.4.17"
|
||||
pretty_env_logger = { version = "0.4.0", optional = true }
|
||||
@ -0,0 +1,180 @@
|
||||
//! Grid of lines and sands
|
||||
use super::*;
|
||||
use std::{
|
||||
collections::BTreeMap,
|
||||
borrow::Cow,
|
||||
|
||||
fmt,
|
||||
};
|
||||
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Default, Copy)]
|
||||
#[repr(u8)]
|
||||
pub enum Cell
|
||||
{
|
||||
#[default]
|
||||
Air = b'.',
|
||||
Wall = b'#',
|
||||
Settled = b'O',
|
||||
Falling = b'~',
|
||||
Source = b'+',
|
||||
}
|
||||
|
||||
impl From<Cell> for u8
|
||||
{
|
||||
#[inline(always)]
|
||||
fn from(from: Cell) -> Self
|
||||
{
|
||||
from as u8
|
||||
}
|
||||
}
|
||||
|
||||
impl fmt::Display for Cell
|
||||
{
|
||||
#[inline]
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "{}", u8::from(*self) as char)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#[derive(Debug, Clone, Default, PartialEq, Eq, PartialOrd, Ord, Hash)]
|
||||
pub struct Grid
|
||||
{
|
||||
map: BTreeMap<Point, Cell>,
|
||||
}
|
||||
|
||||
impl Grid
|
||||
{
|
||||
#[inline]
|
||||
pub const fn new() -> Self
|
||||
{
|
||||
Self {
|
||||
map: BTreeMap::new(),
|
||||
}
|
||||
}
|
||||
|
||||
#[inline(always)]
|
||||
pub fn insert_single(&mut self, point: Point, cell: Cell) -> Option<Cell>
|
||||
{
|
||||
self.map.insert(point, cell)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn draw_line_with<F>(&mut self, line: Line, mut with: F)
|
||||
where F: for<'a> FnMut(&'a Point) -> Cell
|
||||
{
|
||||
for point in line.unroll() {
|
||||
let cell = with(&point);
|
||||
self.map.insert(point, cell);
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn draw_line(&mut self, line: Line, cell: Cell)
|
||||
{
|
||||
self.draw_line_with(line, move |_| cell)
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn draw_lines_with<I,F>(&mut self, line: I, mut with: F)
|
||||
where F: for<'a> FnMut(&'a Point) -> Cell,
|
||||
I: IntoIterator<Item = Line>
|
||||
{
|
||||
for point in line.into_iter().map(|x| x.normalised().unroll()).flatten() {
|
||||
let cell = with(&point);
|
||||
self.map.insert(point, cell);
|
||||
}
|
||||
}
|
||||
|
||||
/// Draw these lines with this cell
|
||||
#[inline]
|
||||
pub fn draw_lines(&mut self, lines: impl IntoIterator<Item = Line>, cell: Cell)
|
||||
{
|
||||
self.draw_lines_with(lines, move |_| cell)
|
||||
}
|
||||
|
||||
/// Add the source to the grid
|
||||
#[inline(always)]
|
||||
pub fn draw_source(&mut self, source: Point)
|
||||
{
|
||||
self.map.insert(source, Cell::Source);
|
||||
}
|
||||
}
|
||||
|
||||
/// Create a new sparse grid, returns the point.
|
||||
///
|
||||
/// A sparse grid does not draw air, only the specified `walls`.
|
||||
#[inline]
|
||||
pub fn sparse_grid(walls: Lines) -> (grid::Grid, Point)
|
||||
{
|
||||
let mut grid = grid::Grid::new();
|
||||
// Add source
|
||||
grid.draw_source(ORIGIN_POINT);
|
||||
|
||||
// Draw walls
|
||||
grid.draw_lines(walls, Cell::Wall);
|
||||
|
||||
(grid, ORIGIN_POINT)
|
||||
}
|
||||
|
||||
// Non-drawing grid functions
|
||||
impl Grid
|
||||
{
|
||||
/// Number of points in the grid
|
||||
#[inline]
|
||||
pub fn len(&self) -> usize
|
||||
{
|
||||
self.map.len()
|
||||
}
|
||||
|
||||
/// Find the highest point in the collection
|
||||
#[inline(always)]
|
||||
pub fn find_high_bound(&self) -> Point
|
||||
{
|
||||
let x = self.map.keys().max_by(|a, b| u64::cmp(&a.x, &b.x)).map(|x| x.x).unwrap_or(0);
|
||||
let y = self.map.keys().max_by(|a, b| u64::cmp(&a.y, &b.y)).map(|y| y.y).unwrap_or(0);
|
||||
Point{ x, y }
|
||||
}
|
||||
|
||||
/// Find the lowest point in the collection
|
||||
#[inline(always)]
|
||||
pub fn find_low_bound(&self) -> Point
|
||||
{
|
||||
let x = self.map.keys().min_by(|a, b| u64::cmp(&a.x, &b.x)).map(|x| x.x).unwrap_or(0);
|
||||
let y = self.map.keys().min_by(|a, b| u64::cmp(&a.y, &b.y)).map(|y| y.y).unwrap_or(0);
|
||||
Point{ x, y }
|
||||
}
|
||||
|
||||
/// Find the low and high bound as a flattened line
|
||||
#[inline]
|
||||
pub fn find_bound(&self) -> Line
|
||||
{
|
||||
let start = self.find_low_bound();
|
||||
let end = self.find_high_bound();
|
||||
Line{ start, end }
|
||||
}
|
||||
|
||||
/// Iterate over a sparse grid, bounded by `bound`, any not set cells will be drawn with air.
|
||||
#[inline]
|
||||
pub fn iterate_sparse<'g>(&'g self, bound: Line) -> impl Iterator<Item = &'g Cell> + 'g
|
||||
{
|
||||
const AIR: Cell = Cell::Air;
|
||||
//let mut grid = start.map.iter().fuse().peekable();
|
||||
bound.normalised().unroll().into_iter()
|
||||
.map(move |point| {
|
||||
if let Some(cell) = self.map.get(&point) {
|
||||
// Contains the point, return that reference
|
||||
return cell;
|
||||
}
|
||||
/*
|
||||
if let Some(&(next_wall, cell)) = grid.peek() {
|
||||
if next_wall == &point {
|
||||
// Take this point off the iterator if it matches
|
||||
return grid.next().unwrap().1;
|
||||
}
|
||||
}*/
|
||||
&AIR
|
||||
})
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,359 @@
|
||||
#![feature(repr_simd)]
|
||||
|
||||
#[macro_use] extern crate log;
|
||||
|
||||
use std::{
|
||||
str,
|
||||
io,
|
||||
iter,
|
||||
path::Path,
|
||||
fmt,
|
||||
};
|
||||
|
||||
use color_eyre::{
|
||||
eyre::{
|
||||
self, eyre,
|
||||
WrapErr as _,
|
||||
},
|
||||
Help as _, SectionExt as _,
|
||||
};
|
||||
|
||||
use linebuffer::prelude::*;
|
||||
|
||||
#[cfg(feature="jemallocator")]
|
||||
const _:() = {
|
||||
use jemallocator::Jemalloc;
|
||||
|
||||
#[global_allocator]
|
||||
static GLOBAL: Jemalloc = Jemalloc;
|
||||
};
|
||||
|
||||
mod grid;
|
||||
|
||||
/// Base coordinate
|
||||
pub type Coord = u64;
|
||||
|
||||
/// A point is a vector
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Copy)]
|
||||
#[repr(simd)]
|
||||
pub struct Point {
|
||||
pub x: Coord,
|
||||
pub y: Coord,
|
||||
}
|
||||
|
||||
impl fmt::Display for Point
|
||||
{
|
||||
#[inline]
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "{},{}", self.x, self.y)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl str::FromStr for Point
|
||||
{
|
||||
type Err = <u64 as str::FromStr>::Err;
|
||||
#[inline]
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
let (x, y) = s.split_once(',').unwrap_or((s, "0"));
|
||||
Ok(Self {
|
||||
x: x.parse()?,
|
||||
y: y.parse()?,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
/// A `Line` is potentially two X any Ys
|
||||
#[derive(Debug, Clone, PartialEq, Eq, Hash, PartialOrd, Ord, Copy)]
|
||||
pub struct Line {
|
||||
start: Point,
|
||||
end: Point,
|
||||
}
|
||||
|
||||
impl fmt::Display for Line
|
||||
{
|
||||
#[inline]
|
||||
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result
|
||||
{
|
||||
write!(f, "{} -> {}", self.start, self.end)
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl From<Point> for (Coord, Coord)
|
||||
{
|
||||
#[inline]
|
||||
fn from(from: Point) -> Self
|
||||
{
|
||||
(from.x, from.y)
|
||||
}
|
||||
}
|
||||
|
||||
impl From<(Coord, Coord)> for Point
|
||||
{
|
||||
#[inline(always)]
|
||||
fn from((x,y): (Coord, Coord)) -> Self
|
||||
{
|
||||
Self {x,y}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl Line {
|
||||
|
||||
fn normalised(self) -> Self
|
||||
{
|
||||
let x = std::cmp::min(self.start.x, self.end.x);
|
||||
let y = std::cmp::min(self.start.y, self.end.y);
|
||||
let start = Point {x,y};
|
||||
|
||||
let x = std::cmp::max(self.start.x, self.end.x);
|
||||
let y = std::cmp::max(self.start.y, self.end.y);
|
||||
let end = Point {x,y};
|
||||
|
||||
Self {
|
||||
start, end
|
||||
}
|
||||
}
|
||||
#[inline]
|
||||
fn normalise(&mut self)
|
||||
{
|
||||
*self = self.clone().normalised();
|
||||
}
|
||||
#[inline]
|
||||
pub fn over_horizontal(&self) -> impl IntoIterator<Item = Point> + 'static
|
||||
{
|
||||
let x = self.start.x;
|
||||
let y = self.start.y;
|
||||
(self.start.x..=self.end.x).map(move |x| (x, y).into())
|
||||
}
|
||||
#[inline]
|
||||
pub fn over_vertical(&self) -> impl IntoIterator<Item = Point> + 'static
|
||||
{
|
||||
let x = self.start.x;
|
||||
(self.start.y..=self.end.y).map(move |y| (x, y).into())
|
||||
}
|
||||
|
||||
#[inline]
|
||||
pub fn unroll(&self) -> impl IntoIterator<Item = Point> + 'static
|
||||
{
|
||||
self.over_horizontal().into_iter()
|
||||
.chain(self.over_vertical().into_iter())
|
||||
}
|
||||
}
|
||||
|
||||
/// A single parsed line into `Line`s.
|
||||
#[derive(Debug, Clone, Default)]
|
||||
pub struct Lines {
|
||||
lines: Vec<Line>,
|
||||
}
|
||||
|
||||
impl IntoIterator for Lines
|
||||
{
|
||||
type Item= Line;
|
||||
type IntoIter = std::vec::IntoIter<Line>;
|
||||
|
||||
#[inline]
|
||||
fn into_iter(self) -> Self::IntoIter
|
||||
{
|
||||
self.lines.into_iter()
|
||||
}
|
||||
}
|
||||
|
||||
impl FromIterator<Lines> for Lines
|
||||
{
|
||||
#[inline]
|
||||
fn from_iter<I: IntoIterator<Item=Lines>>(lines: I) -> Self
|
||||
{
|
||||
Self {
|
||||
lines: Self::flattening(lines).into_iter().collect(),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl FromIterator<Line> for Lines
|
||||
{
|
||||
#[inline]
|
||||
fn from_iter<I: IntoIterator<Item=Line>>(lines: I) -> Self
|
||||
{
|
||||
Self {
|
||||
lines: lines.into_iter().collect()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl Lines {
|
||||
#[inline]
|
||||
pub fn concat(mut self, next: impl IntoIterator<Item = Line>) -> Self
|
||||
{
|
||||
self.lines.extend(next);
|
||||
self
|
||||
}
|
||||
#[inline(always)]
|
||||
pub fn flattening<'a, T: 'a>(lines: impl IntoIterator<Item = T> + 'a) -> impl IntoIterator<Item = Line> + 'a
|
||||
where T: IntoIterator<Item = Line>
|
||||
|
||||
{
|
||||
lines.into_iter().map(|x| x.into_iter()).flatten()
|
||||
}
|
||||
#[inline]
|
||||
pub fn flatten(lines: impl IntoIterator<Item = Self>) -> Self
|
||||
{
|
||||
lines.into_iter().collect()
|
||||
}
|
||||
}
|
||||
|
||||
impl str::FromStr for Lines
|
||||
{
|
||||
type Err = <Point as str::FromStr>::Err;
|
||||
#[inline]
|
||||
fn from_str(s: &str) -> Result<Self, Self::Err> {
|
||||
let mut next = s.split(" -> ").peekable();
|
||||
let mut lines = Vec::new();
|
||||
while let Some(start) = next.next()
|
||||
{
|
||||
let Some(second) = next.peek() else { continue };
|
||||
lines.push(Line {
|
||||
start: start.parse()?,
|
||||
end: second.parse()?
|
||||
})
|
||||
}
|
||||
Ok(Self{lines})
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
struct Input {
|
||||
all: Lines,
|
||||
}
|
||||
|
||||
impl Input
|
||||
{
|
||||
/// Size of all non-unzipped (H+V) lines
|
||||
#[inline]
|
||||
pub fn zipped_len(&self) -> usize
|
||||
{
|
||||
self.all.lines.len()
|
||||
}
|
||||
}
|
||||
|
||||
impl FromIterator<Lines> for Input
|
||||
{
|
||||
#[inline]
|
||||
fn from_iter<I: IntoIterator<Item=Lines>>(iter: I) -> Self
|
||||
{
|
||||
Self{ all: Lines::flatten(iter.into_iter()) }
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
impl Input {
|
||||
#[inline(always)]
|
||||
pub fn parse<R: io::Read>(reader: R) -> eyre::Result<Self>
|
||||
{
|
||||
Self::from_parser(ParsedLines::new(reader))
|
||||
}
|
||||
#[inline]
|
||||
pub fn from_parser<R: io::Read>(lines: ParsedLines<R, forward::FromStr<Lines>>) -> eyre::Result<Self>
|
||||
{
|
||||
struct ParsedIter<T: io::Read>(ParsedLines<T, forward::FromStr<Lines>>);
|
||||
impl<T: io::Read> Iterator for ParsedIter<T>
|
||||
{
|
||||
type Item = Result<Lines, linebuffer::lines::LineParseError<std::num::ParseIntError>>;
|
||||
#[inline(always)]
|
||||
fn next(&mut self) -> Option<Self::Item>
|
||||
{
|
||||
self.0.try_next()
|
||||
}
|
||||
}
|
||||
impl<T: io::Read> iter::FusedIterator for ParsedIter<T>
|
||||
where ParsedLines<T, forward::FromStr<Lines>>: iter::FusedIterator{}
|
||||
|
||||
ParsedIter(lines).enumerate().map(|(i,x)| x.wrap_err("Failed to parse single line").with_section(move || i.header("Line number is"))).collect()
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn load_input_from(from: impl AsRef<Path>) -> eyre::Result<impl io::Read + 'static>
|
||||
{
|
||||
std::fs::OpenOptions::new()
|
||||
.read(true)
|
||||
.open(&from)
|
||||
.with_section(|| format!("{:?}", from.as_ref()).header("File name was"))
|
||||
}
|
||||
|
||||
/// Input filename
|
||||
const INPUT_FILENAME: &'static str = "input";
|
||||
/// Starting point of sand falling
|
||||
const ORIGIN_POINT: Point = Point { x: 500, y: 0 };
|
||||
|
||||
fn init() -> eyre::Result<()>
|
||||
{
|
||||
color_eyre::install()?;
|
||||
#[cfg(feature="status")]
|
||||
pretty_env_logger::init();
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn draw_grid<W: io::Write>(mut to: W, bound: Line, grid: &grid::Grid) -> io::Result<()>
|
||||
{
|
||||
for cells in grid.iterate_sparse(bound).chunk((bound.end.x - bound.start.x) as usize)
|
||||
{
|
||||
for cell in cells {
|
||||
write!(&mut to, "{}", cell)?;
|
||||
}
|
||||
write!(&mut to, "\n")?;
|
||||
}
|
||||
Ok(())
|
||||
}
|
||||
|
||||
/// Simulate the grid falling from `origin` in `grid`.
|
||||
fn simulate(grid: &mut grid::Grid, origin: &Point) -> eyre::Result<()>
|
||||
{
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn main() -> eyre::Result<()> {
|
||||
init().wrap_err("Failed to install handlers and hooks")?;
|
||||
|
||||
// Parsed input
|
||||
let input = {
|
||||
// Input file
|
||||
let input = load_input_from(INPUT_FILENAME)
|
||||
.wrap_err("Failed to open input file")?;
|
||||
|
||||
// Parse input
|
||||
Input::parse(input)
|
||||
.wrap_err("Failed to parse input")?
|
||||
};
|
||||
|
||||
if cfg!(feature="status") {
|
||||
debug!("Read {} zipped lines from input", input.zipped_len());
|
||||
|
||||
trace!("Input is:\n```{input:#?}```");
|
||||
}
|
||||
|
||||
//Draw lines into grid before starting simulation of sand from `origin`.
|
||||
let (mut grid, origin) = grid::sparse_grid(input.all);
|
||||
|
||||
debug!("Read {} unzipped lines", grid.len());
|
||||
|
||||
//TODO: Simulate falling, adding and counting each stopped particle until the sand drops below the bottom of the lowest vertical line.
|
||||
simulate(&mut grid, &origin)
|
||||
.wrap_err("Failed to simulate grid")?;
|
||||
|
||||
// Draw grid
|
||||
if cfg!(feature="status")
|
||||
{
|
||||
let bound = grid.find_bound();
|
||||
debug!("Current map (bound: {}):", bound);
|
||||
draw_grid(io::stderr().lock(), bound, &grid).wrap_err("Failed to draw grid to stderr")?;
|
||||
}
|
||||
|
||||
|
||||
Ok(())
|
||||
}
|
||||
Loading…
Reference in new issue