salas en archivos coas súas salidas

Cargo.lock

@@ -2,6 +2,88 @@
 # It is not intended for manual editing.
 version = 3
 
+[[package]]
+name = "itoa"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.43"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0a2ca2c61bc9f3d74d2886294ab7b9853abd9c1ad903a3ac7815c58989bb7bab"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+dependencies = [
+ "proc-macro2",
+]
+
 [[package]]
 name = "reentrada"
 version = "0.1.0"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+
+[[package]]
+name = "serde"
+version = "1.0.144"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0f747710de3dcd43b88c9168773254e809d8ddbdf9653b84e2554ab219f17860"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.144"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "94ed3a816fb1d101812f83e789f888322c34e291f894f19590dc310963e87a00"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.85"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e55a28e3aaef9d5ce0506d0a14dbba8054ddc7e499ef522dd8b26859ec9d4a44"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.99"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "58dbef6ec655055e20b86b15a8cc6d439cca19b667537ac6a1369572d151ab13"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c4f5b37a154999a8f3f98cc23a628d850e154479cd94decf3414696e12e31aaf"

Cargo.toml

@@ -6,3 +6,5 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+serde = { version = "1.0.144", features = ["derive"]}
+serde_json = "1.0.85"

locations/0.json

@@ -0,0 +1,10 @@
+{
+    "tag": "0",
+    "descripcion": "Pasillo oscuro, luz pulsante.",
+    "salidas": {
+        "norte": "1",
+        "este": "",
+        "sur": "",
+        "oeste": ""
+    }
+}

locations/1.json

@@ -0,0 +1,10 @@
+{
+    "tag": "1",
+    "descripcion": "Puente de mando. Humo denso.",
+    "salidas": {
+        "norte": "",
+        "este": "2",
+        "sur": "0",
+        "oeste": ""
+    }
+}

locations/2.json

@@ -0,0 +1,10 @@
+{
+    "tag": "2",
+    "descripcion": "Vainas criogénicas. Sonido de alarma.",
+    "salidas": {
+        "norte": "",
+        "este": "",
+        "sur": "",
+        "oeste": "1"
+    }
+}

src/main.rs

@@ -14,7 +14,7 @@ fn main() {
 
     let mut command = rlib::Command::new();
     let mut output: String;
-    let mut player = Player{name: "manolo".to_string(), location: 0};
+    let mut player = Player{name: "manolo".to_string(), location: "0".to_string()};
 
     // main loop
     while command.verb != "salir" {

src/player.rs

@@ -1,4 +1,4 @@
 pub struct Player {
     pub name: String,
-    pub location: usize,
+    pub location: String,
 }

src/rlib.rs

@@ -1,5 +1,5 @@
 use std::io::{self, Write};
-use crate::rlocation::{Location, execute_go, execute_look};
+use crate::rlocation::execute_go;
 use crate::player::Player;
 
 pub struct Command {
@@ -50,7 +50,11 @@ pub fn update_state(player: &mut Player, command: &Command) -> String {
     match command.verb.as_str() {
         "salir" => output = format!("Saliendo.\nGracias por jugar! :D"),
         "mirar" => output = format!("Está muy oscuro, no puedes ver nada excepto la luz pulsante."),
-        "ir" => output = execute_go(player, command.noun.to_string()),
+        "ir" => output = execute_go(player, command.noun.as_str()),
+        "n" => output = execute_go(player, "n"),
+        "e" => output = execute_go(player, "e"),
+        "s" => output = execute_go(player, "s"),
+        "o" => output = execute_go(player, "o"),
         _ => output = format!("No se como hacer eso."),
     }
 

src/rlocation.rs

@@ -1,43 +1,78 @@
 use crate::player::Player;
+use serde::Deserialize;
+use std::fs::File;
+use std::io::Read;
 
-#[derive(Debug)]
-pub struct Location<'a> {
-    descripcion: &'a str,
-    tag: &'a str,
+#[derive(Debug, Deserialize)]
+#[allow(dead_code)] // evita os warnings de que non se le o campo
+pub struct Location {
+    tag: String, // tamén é o nome do arquivo, mentras non se implementa bbdd
+    descripcion: String,
+    salidas: Salidas,
 }
 
-const LOCATIONS: &'static [Location] = &[
-    Location {descripcion: "Pasillo principal.", tag: "pasillo"},
-    Location {descripcion: "Sala de máquinas.", tag: "maquinas"},
-    Location {descripcion: "Vainas criogénicas.", tag: "vainas"}
-];
+#[derive(Debug, Deserialize)]
+#[allow(dead_code)] // evita os warnings de que non se le o campo
+pub struct Salidas {
+    norte: String,
+    este: String,
+    sur: String,
+    oeste: String,
+}
 
-pub fn execute_look(tag: String) -> String {
+pub fn execute_look(_tag: String) -> String {
     let salida = "";
 
     return salida.to_string();
 }
 
-pub fn execute_go(player: &mut Player, tag: String) -> String {
-    let salida;
+pub fn execute_go(player: &mut Player, coord: &str) -> String {
+    let output: String;
 
-    if tag != "" {
-        for (pos, e) in LOCATIONS.iter().enumerate() {
-            // println!("Element at position {}: {:?}", pos, e.tag);
-            if tag == e.tag {
-                if pos == player.location {
-                    salida = "No te puedes acercar mucho más...";
+    if coord != "" {
+        let tag: String;
+        let player_location = &player.location;
+        let current_location = get_location(player_location.to_string());
+
+        match coord {
+            "n" => tag = current_location.salidas.norte,
+            "e" => tag = current_location.salidas.este,
+            "s" => tag = current_location.salidas.sur,
+            "o" => tag = current_location.salidas.oeste,
+            "norte" => tag = current_location.salidas.norte,
+            "este" => tag = current_location.salidas.este,
+            "sur" => tag = current_location.salidas.sur,
+            "oeste" => tag = current_location.salidas.oeste,
+            _ => return String::from("No existe esa dirección.")
+        };
+        if tag.as_str() != "" {
+            let location = get_location(tag);
+            if location.tag == player.location {
+                output = String::from("No te puedes acercar mucho más...");
             } else {
-                    player.location = pos;
-                    salida = e.descripcion;
+                player.location = location.tag;
+                output = location.descripcion;
             }
-                return salida.to_string();
-            }
-        }
-        salida = "No encuentro ese lugar..."
         } else {
-        salida = "No entiendo a donde quieres ir...";
+            output = String::from("No existe esa salida.");
+        }
+    } else {
+        output = String::from("No entiendo a donde quieres ir. Debes elegir una coordenada correspondiente a las salidas de esta sala.");
     }
 
-    return salida.to_string();
+    return output.to_string();
+}
+
+// get_location le o arquivo de localización e devolve o json
+fn get_location(tag: String) -> Location {
+    let dir = "locations";
+    let path = format!("{}/{}.json", dir, tag);
+
+    let mut file = File::open(path).expect("Localización non atopada.");
+    let mut data = String::new();
+    file.read_to_string(&mut data).expect("Error durante a lectura da localización.");
+
+    let location: Location = serde_json::from_str(&data).expect("JSON was not well-formatted");
+
+    location
 }