added mc mappings mapper

src/main/kotlin/net/ccbluex/liquidbounce/LiquidBounce.kt

@@ -33,6 +33,7 @@ import net.ccbluex.liquidbounce.script.ScriptManager
 import net.ccbluex.liquidbounce.utils.aiming.RotationManager
 import net.ccbluex.liquidbounce.utils.block.ChunkScanner
 import net.ccbluex.liquidbounce.utils.combat.globalEnemyConfigurable
+import net.ccbluex.liquidbounce.utils.mappings.McMappings
 import org.apache.logging.log4j.LogManager
 
 /**
@@ -66,6 +67,9 @@ object LiquidBounce : Listenable {
         logger.info("Launching $CLIENT_NAME v$CLIENT_VERSION by $CLIENT_AUTHOR")
         logger.debug("Loading from cloud: '$CLIENT_CLOUD'")
 
+        // Load mappings
+        McMappings.load()
+
         // Initialize client features
         EventManager
 

src/main/kotlin/net/ccbluex/liquidbounce/utils/mappings/McMappings.kt

@@ -0,0 +1,76 @@
+/*
+ * This file is part of LiquidBounce (https://github.com/CCBlueX/LiquidBounce)
+ *
+ * Copyright (c) 2016 - 2021 CCBlueX
+ *
+ * LiquidBounce is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * LiquidBounce is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with LiquidBounce. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package net.ccbluex.liquidbounce.utils.mappings
+
+import net.ccbluex.liquidbounce.utils.client.logger
+import net.ccbluex.liquidbounce.utils.io.resource
+import net.fabricmc.mappings.Mappings
+import net.fabricmc.mappings.model.V2MappingsProvider
+
+/**
+ * Tiny mappings
+ *
+ * These are fabric mappings which are being exported when the jar is being built.
+ * It allows you to remap obfuscated environments into readable names.
+ *
+ * This is going to be used for ultralight-databind and our JS script engine.
+ */
+object McMappings {
+
+    var mappings: Mappings? = null
+
+    fun load() {
+        runCatching {
+            mappings = V2MappingsProvider.readTinyMappings(resource("/mappings/mappings.tiny").bufferedReader())
+        }.onFailure {
+            logger.error("Unable to load mappings. Ignore this if you are using a development environment.", it)
+        }
+    }
+
+    fun mapClass(clazz: Class<*>): String {
+        val className = clazz.name.replace('.', '/')
+
+        return mappings?.classEntries?.find {
+            it?.get("intermediary") == className
+        }?.get("named") ?: className
+    }
+
+    fun mapField(clazz: Class<*>, name: String): String {
+        val className = clazz.name.replace('.', '/')
+
+        return mappings?.fieldEntries?.find {
+            val intern = it?.get("intermediary") ?: return@find false
+
+            // todo: check desc
+            intern.owner == className && intern.name == name
+        }?.get("named")?.name ?: name
+    }
+
+    fun mapMethod(clazz: Class<*>, name: String, desc: String): String {
+        val className = clazz.name.replace('.', '/')
+
+        return mappings?.methodEntries?.find {
+            val intern = it?.get("intermediary") ?: return@find false
+
+            intern.owner == className && intern.name == name && intern.desc == desc
+        }?.get("named")?.name ?: name
+    }
+
+}