Initial commit

src/cli/commands/day002.rs

@@ -0,0 +1,209 @@
+use crate::cli::PathBuf;
+use crate::util::read_lines;
+#[derive(Debug)]
+enum Shape {
+    Rock,
+    Paper,
+    Scissor,
+}
+
+impl Shape {
+    fn get_value(&self) -> u32 {
+        match self {
+            Shape::Rock => 1,
+            Shape::Paper => 2,
+            Shape::Scissor => 3,
+        }
+    }
+}
+
+#[derive(Debug)]
+enum EncrypedShape {
+    A,
+    B,
+    C,
+    X,
+    Y,
+    Z,
+}
+
+impl EncrypedShape {
+    fn from_str(s: &str) -> Self {
+        match Some(s) {
+            Some("A") => EncrypedShape::A,
+            Some("B") => EncrypedShape::B,
+            Some("C") => EncrypedShape::C,
+            Some("X") => EncrypedShape::X,
+            Some("Y") => EncrypedShape::Y,
+            Some("Z") => EncrypedShape::Z,
+            _ => panic!(),
+        }
+    }
+
+    fn get_shape(&self) -> Shape {
+        match self {
+            EncrypedShape::A | EncrypedShape::X => Shape::Rock,
+            EncrypedShape::B | EncrypedShape::Y => Shape::Paper,
+            EncrypedShape::C | EncrypedShape::Z => Shape::Scissor,
+        }
+    }
+
+    fn predict_result(&self) -> RpsResult {
+        match self {
+            EncrypedShape::X => RpsResult::Loss,
+            EncrypedShape::Y => RpsResult::Draw,
+            EncrypedShape::Z => RpsResult::Win,
+            EncrypedShape::A | EncrypedShape::B | EncrypedShape::C => panic!(),
+        }
+    }
+
+    fn get_value(&self) -> u32 {
+        self.get_shape().get_value()
+    }
+}
+
+#[derive(Debug)]
+enum RpsResult {
+    Win,
+    Draw,
+    Loss,
+}
+
+#[derive(Debug)]
+struct RPSPair {
+    op: EncrypedShape,
+    me: EncrypedShape,
+}
+
+impl RPSPair {
+    fn from_vec(v: Vec<&str>) -> Self {
+        RPSPair {
+            op: (EncrypedShape::from_str(v.first().unwrap())),
+            me: (EncrypedShape::from_str(v.last().unwrap())),
+        }
+    }
+
+    fn my_shape_by_predicted_result(&self) -> Shape {
+        match self.op.get_shape() {
+            Shape::Rock => match self.me.predict_result() {
+                RpsResult::Win => Shape::Paper,
+                RpsResult::Draw => Shape::Rock,
+                RpsResult::Loss => Shape::Scissor,
+            },
+            Shape::Paper => match self.me.predict_result() {
+                RpsResult::Win => Shape::Scissor,
+                RpsResult::Draw => Shape::Paper,
+                RpsResult::Loss => Shape::Rock,
+            },
+            Shape::Scissor => match self.me.predict_result() {
+                RpsResult::Win => Shape::Rock,
+                RpsResult::Draw => Shape::Scissor,
+                RpsResult::Loss => Shape::Paper,
+            },
+        }
+    }
+
+    fn get_points(&self, alt: &bool) -> u32 {
+        let extra_points: u32;
+        let r: RpsResult;
+        let mv: u32;
+        if *alt {
+            r = self.me.predict_result();
+            mv = self.my_shape_by_predicted_result().get_value();
+        } else {
+            r = self.get_result();
+            mv = self.me.get_value();
+        }
+        match r {
+            RpsResult::Win => {
+                extra_points = 6;
+            }
+            RpsResult::Draw => {
+                extra_points = 3;
+            }
+            RpsResult::Loss => {
+                extra_points = 0;
+            }
+        }
+        mv + extra_points
+    }
+
+    fn get_result(&self) -> RpsResult {
+        match self.me.get_shape() {
+            Shape::Rock => match self.op.get_shape() {
+                Shape::Rock => RpsResult::Draw,
+                Shape::Paper => RpsResult::Loss,
+                Shape::Scissor => RpsResult::Win,
+            },
+            Shape::Paper => match self.op.get_shape() {
+                Shape::Rock => RpsResult::Win,
+                Shape::Paper => RpsResult::Draw,
+                Shape::Scissor => RpsResult::Loss,
+            },
+            Shape::Scissor => match self.op.get_shape() {
+                Shape::Rock => RpsResult::Loss,
+                Shape::Paper => RpsResult::Win,
+                Shape::Scissor => RpsResult::Draw,
+            },
+        }
+    }
+}
+
+pub fn subcmd_day002(file: &Option<PathBuf>, alt: &bool) {
+    if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
+        let mut my_score: u32 = 0;
+        for line in lines {
+            if let Ok(ln) = line {
+                let pair: RPSPair = RPSPair::from_vec(ln.split(" ").collect::<Vec<&str>>());
+                let my_points: u32 = pair.get_points(alt);
+                let my_value: u32;
+                let my_shape: Shape;
+                let my_result: RpsResult;
+                if *alt {
+                    my_shape = pair.my_shape_by_predicted_result();
+                    my_value = my_shape.get_value();
+                    my_result = pair.me.predict_result();
+                } else {
+                    my_shape = pair.me.get_shape();
+                    my_value = pair.me.get_value();
+                    my_result = pair.get_result();
+                }
+                my_score += my_points;
+                println!(
+                    "op: {:?}({:?}), me: {:?}({:?}), result: {:?},  points: {:?}",
+                    pair.op.get_shape(),
+                    pair.op.get_value(),
+                    my_shape,
+                    my_value,
+                    my_result,
+                    my_points
+                );
+            }
+        }
+        println!("My Total Points: {:?}", my_score)
+    }
+}
+
+pub fn subcmd_day002_op(file: &Option<PathBuf>, alt: &bool) {
+    if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
+        let mut my_score: u32 = 0;
+        for line in lines {
+            if let Ok(ln) = line {
+                let pair: RPSPair = RPSPair::from_vec(ln.split(" ").collect::<Vec<&str>>());
+                my_score += pair.get_points(alt);
+            }
+        }
+        println!("My Total Points: {:?}", my_score)
+    }
+}
+
+pub fn subcmd_day002_iter(file: &Option<PathBuf>, alt: &bool) {
+    if let Ok(lines) = read_lines(file.as_ref().unwrap().as_path()) {
+        let points:u32 = lines
+            .into_iter()
+            .map(|line| RPSPair::from_vec(line.unwrap().split(" ").collect::<Vec<&str>>()))
+            .map(|pair| pair.get_points(alt))
+            .sum();
+        println!("My Total Points: {:?}", points)
+    }
+}