optimized the Lua func binding so that the script will not eval again

src/main/java/emu/grasscutter/game/dungeons/DungeonChallenge.java

@@ -138,7 +138,9 @@ public class DungeonChallenge {
 		getScene().getDungeonSettleObservers().forEach(o -> o.onDungeonSettle(getScene()));
 
 		if(!stage){
-			getScene().getScriptManager().callEvent(EventType.EVENT_DUNGEON_SETTLE, new ScriptArgs(this.isSuccess() ? 1 : 0));
+			getScene().getScriptManager().callEvent(EventType.EVENT_DUNGEON_SETTLE,
+					// TODO record the time in PARAM2 and used in action
+					new ScriptArgs(this.isSuccess() ? 1 : 0, 100));
 		}
 	}
 

src/main/java/emu/grasscutter/game/world/WorldDataManager.java

@@ -26,7 +26,7 @@ public class WorldDataManager {
     }
 
     public synchronized void load(){
-    	try(InputStream is = DataLoader.load("ChestReward.json", false); InputStreamReader isr = new InputStreamReader(is)) {
+    	try(InputStream is = DataLoader.load("ChestReward.json"); InputStreamReader isr = new InputStreamReader(is)) {
             List<ChestReward> chestReward = Grasscutter.getGsonFactory().fromJson(
             		isr,
                     TypeToken.getParameterized(List.class, ChestReward.class).getType());

src/main/java/emu/grasscutter/scripts/SceneScriptManager.java

@@ -20,16 +20,11 @@ import org.luaj.vm2.LuaError;
 import org.luaj.vm2.LuaValue;
 import org.luaj.vm2.lib.jse.CoerceJavaToLua;
 
-import javax.script.Bindings;
-import javax.script.ScriptException;
 import java.util.*;
 
 public class SceneScriptManager {
 	private final Scene scene;
-	private final ScriptLib scriptLib;
-	private final LuaValue scriptLibLua;
 	private final Map<String, Integer> variables;
-	private Bindings bindings;
 	private SceneMeta meta;
 	private boolean isInit;
 	/**
@@ -50,8 +45,6 @@ public class SceneScriptManager {
 	private Int2ObjectMap<Set<SceneGroup>> loadedGroupSetPerBlock;
 	public SceneScriptManager(Scene scene) {
 		this.scene = scene;
-		this.scriptLib = new ScriptLib(this);
-		this.scriptLibLua = CoerceJavaToLua.coerce(this.scriptLib);
 		this.triggers = new HashMap<>();
 		this.currentTriggers = new Int2ObjectOpenHashMap<>();
 
@@ -74,18 +67,6 @@ public class SceneScriptManager {
 		return scene;
 	}
 
-	public ScriptLib getScriptLib() {
-		return scriptLib;
-	}
-	
-	public LuaValue getScriptLibLua() {
-		return scriptLibLua;
-	}
-
-	public Bindings getBindings() {
-		return bindings;
-	}
-
 	public SceneConfig getConfig() {
 		if(!isInit){
 			return null;
@@ -162,11 +143,6 @@ public class SceneScriptManager {
 	}
 
 	private void init() {
-		// Create bindings
-		bindings = ScriptLoader.getEngine().createBindings();
-		// Set variables
-		bindings.put("ScriptLib", getScriptLib());
-
 		var meta = ScriptLoader.getSceneMeta(getScene().getId());
 		if (meta == null){
 			return;
@@ -186,14 +162,7 @@ public class SceneScriptManager {
 	}
 	
 	public void loadGroupFromScript(SceneGroup group) {
-		group.load(getScene().getId(), meta.context);
-
-		try {
-			// build the trigger for this scene
-			group.getScript().eval(getBindings());
-		} catch (ScriptException e) {
-			Grasscutter.getLogger().error("Could not build the trigger for this scene", e);
-		}
+		group.load(getScene().getId());
 
 		group.variables.forEach(var -> this.getVariables().put(var.name, var.value));
 		this.sceneGroups.put(group.id, group);
@@ -284,47 +253,55 @@ public class SceneScriptManager {
 	// Events
 	
 	public void callEvent(int eventType, ScriptArgs params) {
+		try{
+			ScriptLoader.getScriptLib().setSceneScriptManager(this);
 			for (SceneTrigger trigger : this.getTriggersByEvent(eventType)) {
-			scriptLib.setCurrentGroup(trigger.currentGroup);
-			LuaValue condition = null;
+				try{
+					ScriptLoader.getScriptLib().setCurrentGroup(trigger.currentGroup);
+
+					LuaValue ret = callScriptFunc(trigger.condition, trigger.currentGroup, params);
+					Grasscutter.getLogger().trace("Call Condition Trigger {}", trigger.condition);
+
+					if (ret.isboolean() && ret.checkboolean()) {
+						// the SetGroupVariableValueByGroup in tower need the param to record the first stage time
+						callScriptFunc(trigger.action, trigger.currentGroup, params);
+						Grasscutter.getLogger().trace("Call Action Trigger {}", trigger.action);
+					}
+					//TODO some ret may not bool
+
+				}finally {
+					ScriptLoader.getScriptLib().removeCurrentGroup();
+				}
+			}
+		}finally {
+			// make sure it is removed
+			ScriptLoader.getScriptLib().removeSceneScriptManager();
+		}
+	}
 
-			if (trigger.condition != null && !trigger.condition.isEmpty()) {
-				condition = (LuaValue) this.getBindings().get(trigger.condition);
+	public LuaValue callScriptFunc(String funcName, SceneGroup group, ScriptArgs params){
+		LuaValue funcLua = null;
+		if (funcName != null && !funcName.isEmpty()) {
+			funcLua = (LuaValue) group.getBindings().get(funcName);
 		}
 
 		LuaValue ret = LuaValue.TRUE;
 
-			if (condition != null) {
+		if (funcLua != null) {
 			LuaValue args = LuaValue.NIL;
 
 			if (params != null) {
 				args = CoerceJavaToLua.coerce(params);
 			}
 
-				ScriptLib.logger.trace("Call Condition Trigger {}", trigger);
-				ret = safetyCall(trigger.condition, condition, args);
-			}
-			
-			if (ret.isboolean() && ret.checkboolean()) {
-				if(trigger.action == null || trigger.action.isEmpty()){
-					return;
-				}
-				ScriptLib.logger.trace("Call Action Trigger {}", trigger);
-				LuaValue action = (LuaValue) this.getBindings().get(trigger.action);
-				// TODO impl the param of SetGroupVariableValueByGroup
-				var arg = new ScriptArgs();
-				arg.param2 = 100;
-				var args = CoerceJavaToLua.coerce(arg);
-				safetyCall(trigger.action, action, args);
-			}
-			//TODO some ret may not bool
-			scriptLib.removeCurrentGroup();
+			ret = safetyCall(funcName, funcLua, args);
 		}
+		return ret;
 	}
 
 	public LuaValue safetyCall(String name, LuaValue func, LuaValue args){
 		try{
-			return func.call(this.getScriptLibLua(), args);
+			return func.call(ScriptLoader.getScriptLibLua(), args);
 		}catch (LuaError error){
 			ScriptLib.logger.error("[LUA] call trigger failed {},{},{}",name,args,error.getMessage());
 			return LuaValue.valueOf(-1);

src/main/java/emu/grasscutter/scripts/ScriptLib.java

@@ -10,6 +10,7 @@ import emu.grasscutter.scripts.data.SceneRegion;
 import emu.grasscutter.server.packet.send.PacketCanUseSkillNotify;
 import emu.grasscutter.server.packet.send.PacketGadgetStateNotify;
 import emu.grasscutter.server.packet.send.PacketWorktopOptionNotify;
+import io.netty.util.concurrent.FastThreadLocal;
 import org.luaj.vm2.LuaTable;
 import org.luaj.vm2.LuaValue;
 import org.slf4j.Logger;
@@ -20,15 +21,24 @@ import java.util.Optional;
 
 public class ScriptLib {
 	public static final Logger logger = LoggerFactory.getLogger(ScriptLib.class);
-	private final SceneScriptManager sceneScriptManager;
+	private final FastThreadLocal<SceneScriptManager> sceneScriptManager;
+	private final FastThreadLocal<SceneGroup> currentGroup;
+	public ScriptLib() {
+		this.sceneScriptManager = new FastThreadLocal<>();
+		this.currentGroup = new FastThreadLocal<>();
+	}
+
+	public void setSceneScriptManager(SceneScriptManager sceneScriptManager){
+		this.sceneScriptManager.set(sceneScriptManager);
+	}
 
-	public ScriptLib(SceneScriptManager sceneScriptManager) {
-		this.sceneScriptManager = sceneScriptManager;
-		this.currentGroup = new ThreadLocal<>();
+	public void removeSceneScriptManager(){
+		this.sceneScriptManager.remove();
 	}
 
 	public SceneScriptManager getSceneScriptManager() {
-		return sceneScriptManager;
+		// normally not null
+		return Optional.of(sceneScriptManager.get()).get();
 	}
 
 	private String printTable(LuaTable table){
@@ -40,13 +50,11 @@ public class ScriptLib {
 		sb.append("}");
 		return sb.toString();
 	}
-	private final ThreadLocal<SceneGroup> currentGroup;
 	public void setCurrentGroup(SceneGroup currentGroup){
-		logger.debug("current {}", currentGroup);
 		this.currentGroup.set(currentGroup);
 	}
 	public Optional<SceneGroup> getCurrentGroup(){
-		return Optional.ofNullable(this.currentGroup.get());
+		return Optional.of(this.currentGroup.get());
 	}
 	public void removeCurrentGroup(){
 		this.currentGroup.remove();

src/main/java/emu/grasscutter/scripts/ScriptLoader.java

@@ -29,6 +29,8 @@ public class ScriptLoader {
 	private static ScriptEngineFactory factory;
 	private static String fileType;
 	private static Serializer serializer;
+	private static ScriptLib scriptLib;
+	private static LuaValue scriptLibLua;
 	/**
 	 * suggest GC to remove it if the memory is less
 	 */
@@ -68,6 +70,10 @@ public class ScriptLoader {
 		ctx.globals.set("EventType", CoerceJavaToLua.coerce(new EventType())); // TODO - make static class to avoid instantiating a new class every scene
 		ctx.globals.set("GadgetState", CoerceJavaToLua.coerce(new ScriptGadgetState()));
 		ctx.globals.set("RegionShape", CoerceJavaToLua.coerce(new ScriptRegionShape()));
+
+		scriptLib = new ScriptLib();
+		scriptLibLua = CoerceJavaToLua.coerce(scriptLib);
+		ctx.globals.set("ScriptLib", scriptLibLua);
 	}
 	
 	public static ScriptEngine getEngine() {
@@ -82,6 +88,14 @@ public class ScriptLoader {
 		return serializer;
 	}
 
+	public static ScriptLib getScriptLib() {
+		return scriptLib;
+	}
+
+	public static LuaValue getScriptLibLua() {
+		return scriptLibLua;
+	}
+
 	public static <T> Optional<T> tryGet(SoftReference<T> softReference){
 		try{
 			return Optional.ofNullable(softReference.get());

src/main/java/emu/grasscutter/scripts/data/SceneGroup.java

@@ -10,12 +10,11 @@ import javax.script.Bindings;
 import javax.script.CompiledScript;
 import javax.script.ScriptException;
 import java.util.ArrayList;
-import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
 
-import static emu.grasscutter.Configuration.*;
+import static emu.grasscutter.Configuration.SCRIPT;
 
 @ToString
 @Setter
@@ -40,6 +39,7 @@ public class SceneGroup {
 
 	private transient boolean loaded; // Not an actual variable in the scripts either
 	private transient CompiledScript script;
+	private transient Bindings bindings;
 
 	public boolean isLoaded() {
 		return loaded;
@@ -65,13 +65,19 @@ public class SceneGroup {
 		return suites.get(index - 1);
 	}
 
-	public SceneGroup load(int sceneId, Bindings bindings){
+	public Bindings getBindings() {
+		return bindings;
+	}
+
+	public SceneGroup load(int sceneId){
 		if(loaded){
 			return this;
 		}
 		// Set flag here so if there is no script, we dont call this function over and over again.
 		setLoaded(true);
 
+		this.bindings = ScriptLoader.getEngine().createBindings();
+
 		CompiledScript cs = ScriptLoader.getScriptByPath(
 				SCRIPT("Scene/" + sceneId + "/scene" + sceneId + "_group" + id + "." + ScriptLoader.getScriptType()));
 

src/main/java/emu/grasscutter/scripts/serializer/LuaSerializer.java

@@ -87,6 +87,9 @@ public class LuaSerializer implements Serializer {
 
 			object = (T) constructorCache.get(type).newInstance();
 
+			if(table == null){
+				return object;
+			}
 			LuaValue[] keys = table.keys();
 			for (LuaValue k : keys) {
 				try {