base impls for what weapontype needs

src/item/weapon.rs

@@ -1,3 +1,4 @@
+use std::convert::{TryFrom, Into};
 
 use std::io::{Read, Seek};
 use crate::{PSOPacketData, PacketParseError};
@@ -63,6 +64,9 @@ pub enum WeaponSpecial {
     Demons,
 }
 
+pub enum WeaponTypeError {
+    UnknownWeapon(String)
+}
 
 #[derive(Debug, Copy, Clone)]
 pub enum WeaponType {
@@ -81,6 +85,27 @@ impl WeaponType {
     }
 }
 
+impl TryFrom<&str> for WeaponType {
+    type Error = WeaponTypeError;
+    fn try_from(value: &str) -> Result<WeaponType, WeaponTypeError> {
+        match value {
+            "Saber" => Ok(WeaponType::Saber),
+            "Handgun" => Ok(WeaponType::Handgun),
+            "Cane" => Ok(WeaponType::Cane),
+            _ => Err(WeaponTypeError::UnknownWeapon(value.to_string()))
+        }
+    }
+}
+
+impl Into<String> for WeaponType {
+    fn into(self) -> String {
+        match self {
+            WeaponType::Saber => "Saber",
+            WeaponType::Handgun => "Handgun",
+            WeaponType::Cane => "Cane",
+        }.to_string()
+    }
+}
 
 
 #[derive(Debug, Copy, Clone)]