add flatbuffers

flatbuffers/src/main.rs

@@ -0,0 +1,30 @@
+#[allow(dead_code, unused_imports)]
+mod monster_generated;
+
+use flatbuffers::FlatBufferBuilder;
+use monster_generated::my_game::sample::Monster;
+use monster_generated::my_game::sample::MonsterArgs;
+
+// https://github.com/frol/flatc-rust/blob/master/examples/tutorial/src/main.rs
+fn main() {
+    let mut fbb = FlatBufferBuilder::new();
+
+    let name = fbb.create_string("Sample Name!");
+
+    let monster = Monster::create(&mut fbb, &MonsterArgs {
+        mana: 150,
+        hp: 80,
+        name: Some(name),
+        ..Default::default()
+    });
+
+    fbb.finish(monster, None);
+
+    let buff = fbb.finished_data();
+
+    println!("FlatBuffers: {}", hex::encode(&buff));
+
+    let monster_2 = flatbuffers::get_root::<Monster>(&buff);
+    println!("Monster hp: {}", monster_2.hp());
+    println!("Monster name: {:?}", monster_2.name());
+}