Fixed save_checkpoint() and restore_checkpoint() functions

src/lib.rs

@@ -22,12 +22,6 @@ mod tests {
             z: 10
         };
         mc.post_to_chat("Test");
-        println!("{}",mc.get_block(position1));
-        println!("{:?}",mc.get_block_with_data(position1));
-        mc.set_block(position1,18,1);
-        mc.set_blocks(position1,position2,18,1);
-        println!("{}",mc.get_height(position1));
-        mc.setting("world_immutable", false);
     }
 }
 
@@ -89,12 +83,12 @@ impl Minecraft {
         self.conn.send_receive(&format!("world.getHeight({},{})", pos.x,pos.z)).parse::<u8>().unwrap()
     }
 
-    fn save_checkpoint(&mut self) {
-        self.conn.send("world.checkpoint.save");
+    pub fn save_checkpoint(&mut self) {
+        self.conn.send("world.checkpoint.save()");
     }
 
-    fn restore_checkpoint(&mut self) {
-        self.conn.send("world.checkpoint.restore");
+    pub fn restore_checkpoint(&mut self) {
+        self.conn.send("world.checkpoint.restore()");
     }
 
     pub fn setting(&mut self, setting:&str, status:bool) {