From 714405d4660216562302713afb1987aa00f36b3e Mon Sep 17 00:00:00 2001
From: Joe Ardent <code@ardent.nebcorp.com>
Date: Sat, 10 Dec 2022 15:07:20 -0800
Subject: [PATCH] aoc day10 part1 done

---
 2022-aoc/src/d10.rs | 272 ++++++++++++++++++++++++++++++++++++++++++++
 2022-aoc/src/lib.rs |   1 +
 2 files changed, 273 insertions(+)
 create mode 100644 2022-aoc/src/d10.rs

diff --git a/2022-aoc/src/d10.rs b/2022-aoc/src/d10.rs
new file mode 100644
index 0000000..3d6d932
--- /dev/null
+++ b/2022-aoc/src/d10.rs
@@ -0,0 +1,272 @@
+use aoc_runner_derive::{aoc as aoc_run, aoc_generator};
+
+#[derive(Debug, Clone, PartialEq, Eq)]
+enum Instr {
+    Noop,
+    AddX(i32, u8),
+}
+
+impl Instr {
+    pub fn execute(&mut self) -> Option<i32> {
+        match self {
+            Instr::AddX(val, done) => {
+                if *done == 0 {
+                    Some(*val)
+                } else {
+                    *done -= 1;
+                    None
+                }
+            }
+            Instr::Noop => None,
+        }
+    }
+
+    pub fn addx(val: i32) -> Self {
+        Instr::AddX(val, 1)
+    }
+
+    pub fn is_noop(&self) -> bool {
+        self == &Instr::Noop
+    }
+}
+
+#[derive(Debug, Clone)]
+struct Vm {
+    cycle: usize,
+    x: i32,
+    ip: usize,
+    instrs: Vec<Instr>,
+}
+
+impl Vm {
+    pub fn new(instrs: Vec<Instr>) -> Self {
+        Vm {
+            cycle: 1,
+            x: 1,
+            ip: 0,
+            instrs,
+        }
+    }
+
+    pub fn run(&mut self) -> (usize, i32) {
+        let instr = self.instrs.get_mut(self.ip).unwrap();
+        let out = (self.cycle, self.x);
+        let mut incr = false;
+        if let Some(v) = instr.execute() {
+            self.x += v;
+            incr = true;
+        }
+        if instr.is_noop() {
+            incr = true;
+        }
+        if incr {
+            self.ninst();
+        }
+        self.cycle += 1;
+        out
+    }
+
+    fn ninst(&mut self) {
+        self.ip = (self.ip + 1).min(self.instrs.len() - 1);
+    }
+}
+
+#[aoc_generator(day10)]
+fn parse_input(input: &str) -> Vm {
+    let mut data = Vec::new();
+    for line in input.lines() {
+        match line {
+            "noop" => data.push(Instr::Noop),
+            _ => {
+                let (_, v) = line.split_once(' ').unwrap();
+                data.push(Instr::addx(v.parse().unwrap()));
+            }
+        }
+    }
+    Vm::new(data)
+}
+
+#[aoc_run(day10, part1)]
+fn part1(input: &Vm) -> i32 {
+    let mut out = 0;
+    let mut vm = input.clone();
+    let mut samp = 20;
+    for _ in 0..221 {
+        let (cycle, x) = vm.run();
+        if cycle % samp == 0 {
+            samp += 40;
+            out += cycle as i32 * x;
+        }
+    }
+    out
+}
+
+#[aoc_run(day10, part2)]
+fn part2(input: &Vm) -> u32 {
+    0
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    const INPUT: &str = "addx 15
+addx -11
+addx 6
+addx -3
+addx 5
+addx -1
+addx -8
+addx 13
+addx 4
+noop
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx 5
+addx -1
+addx -35
+addx 1
+addx 24
+addx -19
+addx 1
+addx 16
+addx -11
+noop
+noop
+addx 21
+addx -15
+noop
+noop
+addx -3
+addx 9
+addx 1
+addx -3
+addx 8
+addx 1
+addx 5
+noop
+noop
+noop
+noop
+noop
+addx -36
+noop
+addx 1
+addx 7
+noop
+noop
+noop
+addx 2
+addx 6
+noop
+noop
+noop
+noop
+noop
+addx 1
+noop
+noop
+addx 7
+addx 1
+noop
+addx -13
+addx 13
+addx 7
+noop
+addx 1
+addx -33
+noop
+noop
+noop
+addx 2
+noop
+noop
+noop
+addx 8
+noop
+addx -1
+addx 2
+addx 1
+noop
+addx 17
+addx -9
+addx 1
+addx 1
+addx -3
+addx 11
+noop
+noop
+addx 1
+noop
+addx 1
+noop
+noop
+addx -13
+addx -19
+addx 1
+addx 3
+addx 26
+addx -30
+addx 12
+addx -1
+addx 3
+addx 1
+noop
+noop
+noop
+addx -9
+addx 18
+addx 1
+addx 2
+noop
+noop
+addx 9
+noop
+noop
+noop
+addx -1
+addx 2
+addx -37
+addx 1
+addx 3
+noop
+addx 15
+addx -21
+addx 22
+addx -6
+addx 1
+noop
+addx 2
+addx 1
+noop
+addx -10
+noop
+noop
+addx 20
+addx 1
+addx 2
+addx 2
+addx -6
+addx -11
+noop
+noop
+noop";
+
+    #[test]
+    fn part1_test() {
+        let vm = parse_input(INPUT);
+
+        assert_eq!(part1(&vm), 13140);
+    }
+
+    #[test]
+    fn part2_test() {
+        let vm = parse_input(INPUT);
+        assert_eq!(part2(&vm), 1);
+    }
+}
diff --git a/2022-aoc/src/lib.rs b/2022-aoc/src/lib.rs
index 92358ca..d33246d 100644
--- a/2022-aoc/src/lib.rs
+++ b/2022-aoc/src/lib.rs
@@ -9,5 +9,6 @@ mod d6;
 mod d7;
 mod d8;
 mod d9;
+mod d10;
 
 aoc_lib! { year = 2022 }