From b5896e2d7597e42818a47710da22098d178bf8f6 Mon Sep 17 00:00:00 2001
From: tom barrett <spalf0@gmail.com>
Date: Tue, 27 Feb 2018 06:59:58 -0600
Subject: -now use velocity and position vector, astroids are now randomly
 populated

---
 src/astroid.rs    | 47 +++++++++++++++++++++++++++++++++++------------
 src/bin/server.rs |  8 +++++++-
 src/connection.rs | 18 +++++++++---------
 src/mass.rs       |  6 +++---
 src/navigation.rs | 13 ++++++++-----
 src/ship.rs       | 40 +++++++++++++++++++++++++---------------
 6 files changed, 87 insertions(+), 45 deletions(-)

(limited to 'src')

diff --git a/src/astroid.rs b/src/astroid.rs
index 6aa1807..fb14751 100644
--- a/src/astroid.rs
+++ b/src/astroid.rs
@@ -1,35 +1,58 @@
 use mass::{Mass, Type};
+extern crate rand;
+use self::rand::distributions::Range;
+use astroid::rand::distributions::Sample;
 extern crate serde_json;
+use astroid::rand::Rng;
 
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Astroid {
     name        : String,
     t           : Type,
-    location    : (f64, f64, f64),
+    position    : (f64, f64, f64),
+    velocity    : (f64, f64, f64),
 }
 
-impl Mass for Astroid {
-    fn new(name : &str, location : (f64, f64, f64)) -> Astroid {
+impl Astroid {
+    pub fn new() -> Astroid {
+        let name : String = rand::thread_rng()
+                            .gen_ascii_chars()
+                            .take(8)
+                            .collect();
+        let mut r = Range::new(-50.0, 50.0);
+        let mut rng = rand::thread_rng();
+        let position = (r.sample(&mut rng), r.sample(&mut rng), r.sample(&mut rng));
         Astroid {
-            name : String::from(name),
-            t : Type::Astroid,
-            location : location,
+            name        : name,
+            t           : Type::Astroid,
+            position    : position,
+            velocity    : (0.0, 0.0, 0.0),
         }
     }
+}
 
+impl Mass for Astroid {
     fn name(&self) -> &String {
         &self.name
     }
 
-    fn location(&self) -> (f64, f64, f64) {
-        self.location
-    }
-
-    fn set_location(&mut self, location : (f64, f64, f64)) {
-        self.location = location;
+    fn position(&self) -> (f64, f64, f64) {
+        self.position
     }
 
     fn serialize(&self) ->String {
         serde_json::to_string(self).unwrap()
     }
+
+    fn process(&mut self) {
+        self.position.0 += self.velocity.0;
+        self.position.1 += self.velocity.1;
+        self.position.2 += self.velocity.2;
+    }
+
+    fn give_acceleration(&mut self, acceleration : (f64, f64, f64)) {
+        self.velocity.0 += acceleration.0;
+        self.velocity.1 += acceleration.1;
+        self.velocity.2 += acceleration.2;
+    }
 }
diff --git a/src/bin/server.rs b/src/bin/server.rs
index c327257..36840c1 100644
--- a/src/bin/server.rs
+++ b/src/bin/server.rs
@@ -11,7 +11,9 @@ use space::connection::Connection;
 fn populate() -> Vec<Box<Mass>> {
     let mut masses : Vec<Box<Mass>> = Vec::new();
 
-    masses.push(Box::new(Astroid::new("cZfAJ", (10.0, -5.0, 4.0))));
+    masses.push(Box::new(Astroid::new()));
+    masses.push(Box::new(Astroid::new()));
+    masses.push(Box::new(Astroid::new()));
 
     masses
 }
@@ -32,6 +34,10 @@ fn main() {
                 }
                 connections.retain(|connection| connection.open);
 
+                for mass in masses.iter_mut() {
+                    mass.process();
+                }
+
                 sleep(Duration::from_millis(100));
             }
         }
diff --git a/src/connection.rs b/src/connection.rs
index db258e4..bcd4a30 100644
--- a/src/connection.rs
+++ b/src/connection.rs
@@ -64,16 +64,16 @@ impl Connection {
                 }
             }
             Module::Engines => {
-                let mut location = masses[self.index].location();
+                let mut acceleration = (0.0, 0.0, 0.0);
                 let mut data = String::new();
                 match self.buff_r.read_line(&mut data) {
                     Ok(result) => match data.as_bytes() {
-                        b"5\n" => location.0 += 1.0,
-                        b"0\n" => location.0 -= 1.0,
-                        b"8\n" => location.1 += 1.0,
-                        b"2\n" => location.1 -= 1.0,
-                        b"4\n" => location.2 += 1.0,
-                        b"6\n" => location.2 -= 1.0,
+                        b"5\n" => acceleration.0 += 1.0,
+                        b"0\n" => acceleration.0 -= 1.0,
+                        b"8\n" => acceleration.1 += 1.0,
+                        b"2\n" => acceleration.1 -= 1.0,
+                        b"4\n" => acceleration.2 += 1.0,
+                        b"6\n" => acceleration.2 -= 1.0,
                         _ => {
                             if result == 0 {
                                 self.open = false;
@@ -82,13 +82,13 @@ impl Connection {
                     },
                     Err(_error) => (),
                 }
-                masses[self.index].set_location(location);
+                masses[self.index].give_acceleration(acceleration);
             }
             Module::Navigation => {
                 let ship = &masses[self.index].downcast_ref::<Ship>().unwrap();
 
                 let within_range : Vec<&Box<Mass>> = masses.iter().filter(|mass|
-                distance(ship.location(), mass.location()) < ship.range()).collect();
+                distance(ship.position(), mass.position()) < ship.range()).collect();
 
                 let mut send = String::new();
                 for mass in within_range {
diff --git a/src/mass.rs b/src/mass.rs
index 71723cd..d91b292 100644
--- a/src/mass.rs
+++ b/src/mass.rs
@@ -1,11 +1,11 @@
 use downcast::Any;
 
 pub trait Mass : Any {
-    fn new(name : &str, location : (f64, f64, f64)) -> Self where Self: Sized;
     fn name(&self) -> &String;
-    fn location(&self) -> (f64, f64, f64);
-    fn set_location(&mut self, location : (f64, f64, f64));
+    fn position(&self) -> (f64, f64, f64);
     fn serialize(&self) -> String;
+    fn process(&mut self);
+    fn give_acceleration(&mut self, acceleration : (f64, f64, f64));
 }
 
 #[derive(Serialize, Deserialize, Debug)]
diff --git a/src/navigation.rs b/src/navigation.rs
index cc2221a..4683c0c 100644
--- a/src/navigation.rs
+++ b/src/navigation.rs
@@ -16,7 +16,7 @@ use ship::Ship;
 use math::distance;
 use astroid::Astroid;
 
-pub fn Navigation(name : String, mut stream :TcpStream, mut buff_r : BufReader<TcpStream>){
+pub fn Navigation(name : String, mut stream : TcpStream, mut buff_r : BufReader<TcpStream>){
     let stdout = stdout();
     let mut stdout = stdout.lock().into_raw_mode().unwrap();
     let mut stdin = async_stdin().bytes();
@@ -55,14 +55,16 @@ pub fn Navigation(name : String, mut stream :TcpStream, mut buff_r : BufReader<T
                termion::clear::All,
                termion::cursor::Goto(1,1)).unwrap();
 
-        let location = ship.expect("zz").location();
+        let position = ship.unwrap().position();
         for (i, mass) in masses.iter().enumerate() {
-            write!(stdout, "{}{}) {} {:?} Distance : {}",
+            write!(stdout, "{}{}) {} ({:.2}, {:.2}, {:.2}) Distance : {:.2}",
                    termion::cursor::Goto(1, 2 + i as u16),
                    i,
                    mass.name(),
-                   mass.location(),
-                   distance(mass.location(), location)).unwrap();
+                   mass.position().0,
+                   mass.position().1,
+                   mass.position().2,
+                   distance(mass.position(), position)).unwrap();
         }
 
         match stdin.next() {
@@ -70,6 +72,7 @@ pub fn Navigation(name : String, mut stream :TcpStream, mut buff_r : BufReader<T
                 let c = c.unwrap();
                 let mut send = String::new();
                 send.push(c as char);
+                println!("{}", send);
                 if send.as_bytes() == b"q" {
                     break;
                 }
diff --git a/src/ship.rs b/src/ship.rs
index 078c2c1..30c68d9 100644
--- a/src/ship.rs
+++ b/src/ship.rs
@@ -4,40 +4,50 @@ extern crate serde_json;
 #[derive(Serialize, Deserialize, Debug)]
 pub struct Ship {
     name        : String,
-    location    : (f64, f64, f64),
+    position    : (f64, f64, f64),
+    velocity    : (f64, f64, f64),
     t           : Type,
     r           : f64,
 }
 
 impl Ship {
-    pub fn range(&self) -> f64 {
-        self.r
-    }
-}
-
-impl Mass for Ship {
-    fn new(name : &str, location : (f64, f64, f64)) -> Ship {
+    pub fn new(name : &str, position : (f64, f64, f64)) -> Ship {
         Ship {
             name        : String::from(name),
-            location    : location,
+            position    : position,
+            velocity    : (0.0, 0.0, 0.0),
             t           : Type::Ship,
             r           : 100.0,
         }
     }
 
-    fn name(&self) -> &String {
-        &self.name
+    pub fn range(&self) -> f64 {
+        self.r
     }
+}
 
-    fn location(&self) -> (f64, f64, f64) {
-        self.location
+impl Mass for Ship {
+    fn name(&self) -> &String {
+        &self.name
     }
 
-    fn set_location(&mut self, location : (f64, f64, f64)) {
-        self.location = location;
+    fn position(&self) -> (f64, f64, f64) {
+        self.position
     }
 
     fn serialize(&self) -> String {
         serde_json::to_string(self).unwrap()
     }
+
+    fn process(&mut self) {
+        self.position.0 += self.velocity.0;
+        self.position.1 += self.velocity.1;
+        self.position.2 += self.velocity.2;
+    }
+
+    fn give_acceleration(&mut self, acceleration : (f64, f64, f64)) {
+        self.velocity.0 += acceleration.0;
+        self.velocity.1 += acceleration.1;
+        self.velocity.2 += acceleration.2;
+    }
 }
-- 
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