Initial work on wasm scripting backend

tests/common/library_loader.rs

@@ -1,7 +1,7 @@
 use std::convert::TryFrom;
 use std::fmt::Debug;
 use std::fs::File;
-use std::io::Read;
+use std::io::{BufReader, Read};
 
 use hashbrown::HashSet;
 use num_traits::PrimInt;
@@ -13,6 +13,7 @@ use pkmn_lib::dynamic_data::Gen7BattleStatCalculator;
 use pkmn_lib::dynamic_data::Gen7DamageLibrary;
 use pkmn_lib::dynamic_data::Gen7MiscLibrary;
 use pkmn_lib::dynamic_data::{DynamicLibrary, EmptyScriptResolver};
+use pkmn_lib::script_implementations::wasm::script_resolver::WebAssemblyScriptResolver;
 use pkmn_lib::static_data::{
     Ability, AbilityLibrary, BattleItemCategory, DataLibrary, EffectParameter, Form, GrowthRateLibrary, Item,
     ItemLibrary, LearnableMoves, LibrarySettings, LookupGrowthRate, MoveData, MoveLibrary, Nature, NatureLibrary,
@@ -32,12 +33,15 @@ pub fn load_library() -> DynamicLibrary {
     load_abilities(&path, data.abilities_mut());
     load_moves(&path, &mut data);
     load_species(&path, &mut data);
+    let mut resolver = WebAssemblyScriptResolver::new();
+    load_wasm(&path, &mut resolver);
+
     let dynamic = DynamicLibrary::new(
         data,
         Box::new(Gen7BattleStatCalculator {}),
         Box::new(Gen7DamageLibrary::new(false)),
         Box::new(Gen7MiscLibrary::new()),
-        Box::new(EmptyScriptResolver {}),
+        Box::new(resolver),
     );
     dynamic
 }
@@ -271,6 +275,14 @@ pub fn load_species(path: &String, library: &mut StaticData) {
     }
 }
 
+fn load_wasm(path: &String, library: &mut WebAssemblyScriptResolver) {
+    let mut file = File::open(path.to_string() + "gen7_scripts_rs.wasm").unwrap();
+    let mut reader = BufReader::new(file);
+    let mut buffer = Vec::new();
+    reader.read_to_end(&mut buffer);
+    library.load_wasm_from_bytes(&buffer);
+}
+
 fn parse_form(name: StringKey, value: &Value, library: &mut StaticData) -> Form {
     let mut abilities = Vec::new();
     for a in value["abilities"].as_array().unwrap() {