Broken scarytxt

scarytxt/src/game.rs

@@ -0,0 +1,229 @@
+use std::io::{self, Write};
+use std::process;
+
+pub struct Game {
+    encounter: Option<Encounter>,
+    zone: Zone,
+    adventurer: Adventurer,
+    scarers: Vec<Scarer>,
+}
+
+impl Game {
+    pub fn new() -> Game {
+        Game {
+            encounter: None,
+            zone: Zone { width: 4, depth: 4 },
+            adventurer: Adventurer {
+                name: String::from("adv"),
+                h: Humors {
+                    health: 1000,
+                    attack: 1,
+                    critical_pct: 10,
+                },
+                l: Location { x: 0, y: 0 },
+            },
+            scarers: vec![Scarer {
+                name: String::from("Blue Minotaur"),
+                description: String::from("Towering half bull with flaming nostrils"),
+                h: Humors {
+                    health: 4000,
+                    attack: 4,
+                    critical_pct: 2,
+                },
+                l: Location { x: 2, y: 2 },
+            }],
+        }
+    }
+
+    pub fn play(&mut self) {
+        loop {
+            self.step();
+        }
+    }
+
+    fn on(&mut self, event: Event) {
+        match event {
+            Event::ApproachEdge => {
+                println!("// you stand at the edge of the zone");
+            }
+            Event::Encounter(s) => {
+                println!("// !! you encounter an {}", s.name);
+            }
+            Event::Unencounter(s, o) => {
+                println!("// !! you unencountered an {} with outcome {:?}", s.name, o);
+            }
+            Event::Fall => {
+                println!("// you fall out of the zone");
+                process::exit(0);
+            }
+            Event::Step(d) => {
+                println!("// you step {:?}", d);
+            }
+            Event::Miss => {
+                println!("// you brace yourself for the next step");
+            }
+        }
+    }
+
+    pub fn step(&mut self) {
+        {
+            let al = &self.adventurer.l;
+
+            if al.x == 0
+                || al.y == 0
+                || al.x as u8 == self.zone.width
+                || al.y as u8 == self.zone.depth
+            {
+                self.on(Event::ApproachEdge);
+            }
+        }
+
+        let adventurer_loc = Location {
+            x: self.adventurer.l.x,
+            y: self.adventurer.l.y,
+        };
+
+        let evt: Event = Event::Miss;
+
+        for s in self.scarers.iter() {
+            if adventurer_loc == s.l {
+                evt = Event::Encounter(*s);
+            }
+        }
+
+        self.on(evt);
+
+        print!("> ");
+        io::stdout().flush().expect("failed to flush stdout");
+
+        let mut line = String::new();
+        io::stdin()
+            .read_line(&mut line)
+            .expect("failed to read line of input");
+        line = line.trim().to_string();
+
+        match &mut self.encounter {
+            None => { mut self.wandering_step(&line) },
+            Some(e) => { mut self.encounter_step(&line, e) },
+        }
+    }
+
+    fn encounter_step(&self, line: &str, enc: &mut Encounter) {
+        eprintln!(
+            "// this is not an encounter {:?} from line {:?} OK",
+            enc, line
+        );
+    }
+
+    fn wandering_step(&mut self, line: &str) {
+        let v: Vec<&str> = line.split(' ').collect();
+        match v.get(0) {
+            Some(cmd) => {
+                match *cmd {
+                    "help" => {
+                        println!("// maybe try 'loc'");
+                    }
+                    "loc" => {
+                        println!(
+                            "// you stand at ({}, {})",
+                            self.adventurer.l.x, self.adventurer.l.y
+                        );
+                    }
+                    "step" => {
+                        let (mv, dir) = match v.get(1) {
+                            Some(direction) => {
+                                let direction = direction.trim().to_lowercase();
+                                match direction.as_str() {
+                                    "forward" => ((1i8, 0i8), Direction::Forward),
+                                    "back" => ((-1i8, 0i8), Direction::Back),
+                                    "left" => ((0i8, 1i8), Direction::Left),
+                                    "right" => ((0i8, -1i8), Direction::Right),
+                                    _ => {
+                                        println!("unknown direction {}", direction);
+                                        ((0i8, 0i8), Direction::Forward)
+                                    }
+                                }
+                            }
+                            None => ((1i8, 0i8), Direction::Forward),
+                        };
+
+                        let loc = &mut self.adventurer.l;
+                        loc.x += mv.0;
+                        loc.y += mv.1;
+                        println!("// you step {:?}", dir);
+                    }
+                    _ => {
+                        println!("// what is this {}?", cmd);
+                    }
+                };
+            }
+            None => println!("// ..."),
+        }
+    }
+}
+
+#[derive(Debug)]
+enum Direction {
+    Forward,
+    Back,
+    Left,
+    Right,
+}
+
+#[derive(Debug)]
+enum EncounterOutcome {
+    Victory,
+    Defeat,
+}
+
+enum Event {
+    Fall,
+    ApproachEdge,
+    Step(Direction),
+    Encounter(Scarer),
+    Unencounter(Scarer, EncounterOutcome),
+    Miss,
+}
+
+#[derive(Debug)]
+struct Encounter {
+    scarer: Scarer,
+}
+
+#[derive(Debug)]
+struct Humors {
+    health: u16,
+    attack: u8,
+    critical_pct: u8,
+}
+
+#[derive(Debug)]
+struct Location {
+    x: i8,
+    y: i8,
+}
+
+impl PartialEq for Location {
+    fn eq(&self, other: &Self) -> bool {
+        self.x == other.x && self.y == other.y
+    }
+}
+
+struct Adventurer {
+    name: String,
+    h: Humors,
+    l: Location,
+}
+
+#[derive(Debug)]
+struct Scarer {
+    name: String,
+    description: String,
+    h: Humors,
+    l: Location,
+}
+
+struct Zone {
+    width: u8,
+    depth: u8,
+}

scarytxt/src/main.rs

@@ -1,116 +1,5 @@
-use std::io::{self,Write};
+pub mod game;
 
-fn main() -> io::Result<()> {
-    let game = build_game();
-
-    println!("// you enter the zone");
-    loop {
-        print!("> ");
-        io::stdout().flush();
-
-        match game.in_battle {
-            false => {
-
-        let mut line = String::new();
-        io::stdin().read_line(&mut line)?;
-        match line.trim() {
-            "help"  => {
-                println!("// maybe try 'loc'");
-            },
-            "loc" => {
-                println!("// you stand at ({}, {})", game.adventurer.l.x, game.adventurer.l.y);
-            },
-            "step forward" => {
-                let loc = game.adventurer.l;
-                loc.x += 1;
-                println!("// you step forward");
-                for s in game.scarers.iter() {
-                    if (loc.x, loc.y) == (s.l.x, s.l.y) {
-                        println!("// oh no it's an {}", s.name)
-                    }
-                }
-            },
-            _ => {
-                println!("// what is this {}?", line.trim())
-            }
-        }
-            },
-            true => {
-            }
-        }
-    };
-    Ok(())
-}
-
-fn build_game() -> Game {
-    Game {
-        in_battle: false,
-        zone: Zone {
-            width: 4,
-            depth: 4,
-        },
-        adventurer: Adventurer {
-            name: String::from("adv"),
-            h: Humors {
-                health: 1000,
-                attack: 1,
-                critical_pct: 10,
-            },
-            l: Location {
-                x: 0,
-                y: 0,
-            }
-        },
-        scarers: vec![
-            Scarer {
-                name: String::from("Blue Minotaur"),
-                description: String::from("Towering half bull with flaming nostrils"),
-                h: Humors {
-                    health: 4000,
-                    attack: 4,
-                    critical_pct: 2,
-                },
-                l: Location {
-                    x: 2,
-                    y: 2,
-                },
-            },
-        ],
-    }
-}
-
-struct Humors {
-    health: u16,
-    attack: u8,
-    critical_pct: u8,
-}
-
-struct Location {
-    x: u8,
-    y: u8,
-}
-
-struct Adventurer {
-    name: String,
-    h: Humors,
-    l: Location,
-}
-
-struct Scarer {
-    name: String,
-    description: String,
-    h: Humors,
-    l: Location,
-}
-
-struct Zone {
-    width: u8,
-    depth: u8,
-}
-
-struct Game {
-    in_battle: bool,
-    zone: Zone,
-    adventurer: Adventurer,
-    scarers: Vec<Scarer>,
+fn main() {
+    game::Game::new().play();
 }