-found way to downcast and created new struct

10 files changed, 113 insertions, 15 deletions

diff --git a/Cargo.lock b/Cargo.lock
index 748be5c..8172406 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,4 +1,9 @@
 [[package]]
+name = "downcast"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
 name = "dtoa"
 version = "0.4.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
@@ -83,6 +88,7 @@ dependencies = [
 name = "space"
 version = "0.1.0"
 dependencies = [
+ "downcast 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_derive 1.0.27 (registry+https://github.com/rust-lang/crates.io-index)",
  "serde_json 1.0.9 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -123,6 +129,7 @@ version = "0.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [metadata]
+"checksum downcast 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "242756f88358d71447a37780b71b1cb180a276bd214765ee2d81dfe7c90e59bb"
 "checksum dtoa 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "09c3753c3db574d215cba4ea76018483895d7bff25a31b49ba45db21c48e50ab"
 "checksum itoa 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "8324a32baf01e2ae060e9de58ed0bc2320c9a2833491ee36cd3b4c414de4db8c"
 "checksum libc 0.2.36 (registry+https://github.com/rust-lang/crates.io-index)" = "1e5d97d6708edaa407429faa671b942dc0f2727222fb6b6539bf1db936e4b121"
diff --git a/Cargo.toml b/Cargo.toml
index 689c76f..ce4e48e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,3 +8,4 @@ serde = "1.0"
 serde_derive = "1.0"
 serde_json = "1.0"
 termion = "1.5.1"
+downcast = "0.8"
diff --git a/src/astroid.rs b/src/astroid.rs
new file mode 100644
index 0000000..dd47123
--- /dev/null
+++ b/src/astroid.rs
@@ -0,0 +1,33 @@
+use mass::Mass;
+extern crate serde_json;
+
+#[derive(Serialize, Deserialize, Debug)]
+pub struct Astroid {
+    name        : String,
+    location    : (isize, isize, isize),
+}
+
+impl Mass for Astroid {
+    fn new(name : &str, location : (isize, isize, isize)) -> Astroid {
+        Astroid {
+            name : String::from(name),
+            location : location,
+        }
+    }
+
+    fn name(&self) -> &String {
+        &self.name
+    }
+
+    fn location(&self) -> (isize, isize, isize) {
+        self.location
+    }
+
+    fn set_location(&mut self, location : (isize, isize, isize)) {
+        self.location = location;
+    }
+
+    fn serialize(&self) ->String {
+        serde_json::to_string(self).unwrap()
+    }
+}
diff --git a/src/bin/client.rs b/src/bin/client.rs
index 6f4a8fc..2e8dd45 100644
--- a/src/bin/client.rs
+++ b/src/bin/client.rs
@@ -6,6 +6,7 @@ use std::net::TcpStream;
 extern crate space;
 use space::dashboard::Dashboard;
 use space::engines::Engines;
+use space::navigation::Navigation;
 use space::module::{Module, from_primitive};
 
 
@@ -46,6 +47,6 @@ fn main() {
     match module {
         Module::Dashboard => Dashboard(buff_r),
         Module::Engines => Engines(stream),
-        _ => (),
+        Module::Navigation => Navigation(stream, buff_r),
     }
 }
diff --git a/src/bin/server.rs b/src/bin/server.rs
index d2923d8..e042855 100644
--- a/src/bin/server.rs
+++ b/src/bin/server.rs
@@ -4,13 +4,23 @@ use std::net::TcpListener;
 
 extern crate space;
 use space::mass::Mass;
+use space::astroid::Astroid;
 use space::connection::Connection;
 
+
+fn populate() -> Vec<Box<Mass>> {
+    let mut masses : Vec<Box<Mass>> = Vec::new();
+
+    masses.push(Box::new(Astroid::new("cZfAJ", (10, -5, 4))));
+
+    masses
+}
+
 fn main() {
     let listener = TcpListener::bind("localhost:6000").unwrap();
     listener.set_nonblocking(true).unwrap();
 
-    let mut masses : Vec<Box<Mass>>= Vec::new();
+    let mut masses = populate();
 
     let mut connections = Vec::new();
     for stream in listener.incoming() {
diff --git a/src/connection.rs b/src/connection.rs
index 5c086fa..b1a2056 100644
--- a/src/connection.rs
+++ b/src/connection.rs
@@ -24,7 +24,7 @@ impl Connection {
         buff_r.read_line(&mut data).unwrap();
         let name = &data[..data.find(":").unwrap()];
 
-        let result = masses.into_iter().position(|ship| ship.get_name() == name);
+        let result = masses.into_iter().position(|ship| ship.name() == name);
         let index = match result {
             Some(index) => index,
             None => { 
@@ -52,7 +52,6 @@ impl Connection {
         }
     }
 
-
     pub fn process(&mut self, masses : &mut Vec<Box<Mass>>) {
         match self.module {
             Module::Dashboard => {
@@ -64,7 +63,7 @@ impl Connection {
                 }
             }
             Module::Engines => {
-                let mut location = masses[self.index].get_location();
+                let mut location = masses[self.index].location();
                 let mut data = String::new();
                 match self.buff_r.read_line(&mut data) {
                     Ok(result) => match data.as_bytes() {
@@ -82,11 +81,32 @@ impl Connection {
                     },
                     Err(_error) => (),
                 }
-                masses[self.index].give_location(location);
+                masses[self.index].set_location(location);
             }
             Module::Navigation => {
-                ()
+                let ship = &masses[self.index].downcast_ref::<Ship>().unwrap();
+
+                let mut within_range = Vec::new();
+                for mass in masses.iter() {
+                    if distance(ship.location(), mass.location()) > ship.range() {
+                        within_range.push(mass);
+                    }
+                }
+                let mut send = String::new();
+                for mass in within_range {
+                    send.push_str(&mass.serialize());
+                    send.push_str("\n");
+                }
+                match self.stream.write(send.as_bytes()) {
+                    Ok(_result) => (),
+                    Err(_error) => self.open = false,
+                }
             }
         }
     }
+
+}
+
+fn distance(l0 : (isize, isize, isize), l1 : (isize, isize, isize)) -> f64 {
+    (((l1.0-l0.0).pow(2) + (l1.1-l0.1).pow(2) + (l1.2-l0.2).pow(2)) as f64).sqrt()
 }
diff --git a/src/lib.rs b/src/lib.rs
index 90fd64b..0611f67 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,11 +1,15 @@
 #[macro_use]
 extern crate serde_derive;
+#[macro_use]
+extern crate downcast;
+
 extern crate termion;
 
 pub mod mass;
 pub mod ship;
 pub mod module;
+pub mod astroid;
 pub mod engines;
 pub mod dashboard;
 pub mod connection;
-
+pub mod navigation;
diff --git a/src/mass.rs b/src/mass.rs
index d1f9d3e..955f84d 100644
--- a/src/mass.rs
+++ b/src/mass.rs
@@ -1,7 +1,11 @@
-pub trait Mass {
+use downcast::Any;
+
+pub trait Mass : Any {
     fn new(name : &str, location : (isize, isize, isize)) -> Self where Self: Sized;
-    fn get_name(&self) -> &String;
-    fn get_location(&self) -> (isize, isize, isize);
-    fn give_location(&mut self, location : (isize, isize, isize));
+    fn name(&self) -> &String;
+    fn location(&self) -> (isize, isize, isize);
+    fn set_location(&mut self, location : (isize, isize, isize));
     fn serialize(&self) -> String;
 }
+
+downcast!(Mass);
diff --git a/src/navigation.rs b/src/navigation.rs
new file mode 100644
index 0000000..b3cd9cf
--- /dev/null
+++ b/src/navigation.rs
@@ -0,0 +1,10 @@
+use std::net::TcpStream;
+use std::io::BufRead;
+use std::io::BufReader;
+
+pub fn Navigation(mut stream :TcpStream, mut buff_r : BufReader<TcpStream>){
+    loop {
+        let mut data = String::new();
+        buff_r.read_line(&mut data).unwrap();
+    }
+}
diff --git a/src/ship.rs b/src/ship.rs
index 715f019..30a27fb 100644
--- a/src/ship.rs
+++ b/src/ship.rs
@@ -5,6 +5,13 @@ extern crate serde_json;
 pub struct Ship {
     name        : String,
     location    : (isize, isize, isize),
+    r           : f64,
+}
+
+impl Ship {
+    pub fn range(&self) -> f64 {
+        self.r
+    }
 }
 
 impl Mass for Ship {
@@ -12,18 +19,19 @@ impl Mass for Ship {
         Ship {
             name        : String::from(name),
             location    : location,
+            r           : 10.0,
         }
     }
 
-    fn get_name(&self) -> &String {
+    fn name(&self) -> &String {
         &self.name
     }
 
-    fn get_location(&self) -> (isize, isize, isize) {
+    fn location(&self) -> (isize, isize, isize) {
         self.location
     }
 
-    fn give_location(&mut self, location : (isize, isize, isize)) {
+    fn set_location(&mut self, location : (isize, isize, isize)) {
         self.location = location;
     }