Added receive() and send_receive functions for Connection struct + added get_block() function for Minecraft struct

src/lib.rs

@@ -1,16 +1,22 @@
 use std::io::prelude::*;
 use std::net::TcpStream;
-use std::io::{Result as IoResult, Error};
+use std::io::{Result as IoResult, Error, BufReader};
 
 #[cfg(test)]
 mod tests {
-    use crate::create;
+    use crate::{create, Vec3};
 
     #[test]
     fn it_works() {
         assert_eq!(2 + 2, 4);
         let mut mc = create("localhost:4711");
+        let position = Vec3 {
+            x: -2,
+            y: 8,
+            z: -2
+        };
         mc.post_to_chat("Test");
+        println!(mc.get_block(position));
     }
 }
 
@@ -22,7 +28,7 @@ struct Connection {
     stream:TcpStream
 }
 
-struct Vec3 {
+pub struct Vec3 {
     x:i32,
     y:i32,
     z:i32
@@ -32,20 +38,36 @@ impl Connection {
     pub fn send(&mut self, msg:&str) {
         self.stream.write(&format!("{}\n", msg).as_bytes());
     }
+
+    pub fn receive(&mut self) -> &str {
+        let mut reader = BufReader::new(&self.stream);
+        let mut line = String::new();
+        reader.read_line(&mut line);
+        line.as_str()
+    }
+
+    pub fn send_receive(&mut self, msg:&str) -> &str {
+        self.send(msg);
+        self.receive()
+    }
 }
 
 impl Minecraft {
     pub fn post_to_chat(&mut self, msg:&str) {
         self.conn.send(&format!("chat.post({})", msg));
     }
+
+    pub fn get_block(&mut self, pos:Vec3) -> &str{
+        self.conn.send_receive(&format!("world.getBlock({},{},{})", pos.x, pos.y, pos.z))
+    }
 }
 
 pub fn create(adress:&str) -> Minecraft {
     let mut stream = TcpStream::connect(adress);
     match stream {
         Ok(_) => {}
-        Err(e) => {
-            panic!(e)
+        Err(_) => {
+            panic!("Failed to connect to the API! Is Minecraft running?")
         }
     }
     Minecraft {