From 3239829e39c7c81dbf31c53be0f3b59886b597c8 Mon Sep 17 00:00:00 2001
From: Deficuet <Deficuet@hotmail.com>
Date: Sat, 21 Jan 2023 14:43:34 -0700
Subject: [PATCH] replace list of objects with map

---
 .../io/github/deficuet/unitykt/ImportContext.kt      |  2 +-
 .../kotlin/io/github/deficuet/unitykt/PPtrUtils.kt   |  4 ++--
 .../io/github/deficuet/unitykt/UnityAssetManager.kt  | 10 +++++++++-
 .../github/deficuet/unitykt/file/SerializedFile.kt   | 12 +++++-------
 .../kotlin/io/github/deficuet/unitykt/util/utils.kt  | 10 +++++-----
 src/main/kotlin/io/github/deficuet/unitykt/utils.kt  |  4 ++++
 6 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/src/main/kotlin/io/github/deficuet/unitykt/ImportContext.kt b/src/main/kotlin/io/github/deficuet/unitykt/ImportContext.kt
index cb68731f..79d1d0f9 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/ImportContext.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/ImportContext.kt
@@ -28,7 +28,7 @@ class ImportContext: AssetBundleFile {
     /**
      * All [Object] loaded from this file.
      */
-    val objects = mutableListOf<Object>()
+    val objects = mutableMapOf<Long, Object>()
 
     internal constructor(
         filePath: String, manager: UnityAssetManager,
diff --git a/src/main/kotlin/io/github/deficuet/unitykt/PPtrUtils.kt b/src/main/kotlin/io/github/deficuet/unitykt/PPtrUtils.kt
index ef7150ee..3ef59237 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/PPtrUtils.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/PPtrUtils.kt
@@ -6,8 +6,8 @@ import io.github.deficuet.unitykt.data.PPtr
 inline fun <reified O: Object> PPtr<O>.getObj(): O? {
     if (obj != null) return obj
     getManager()?.let { manager ->
-        if (mPathID in manager.objectDict) {
-            val objFound = manager.objectDict.getValue(mPathID)
+        if (mPathID in manager.objects) {
+            val objFound = manager.objects.getValue(mPathID)
             return if (objFound is O) {
                 obj = objFound
                 obj
diff --git a/src/main/kotlin/io/github/deficuet/unitykt/UnityAssetManager.kt b/src/main/kotlin/io/github/deficuet/unitykt/UnityAssetManager.kt
index e41c9354..5288cc88 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/UnityAssetManager.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/UnityAssetManager.kt
@@ -28,7 +28,15 @@ class UnityAssetManager: Closeable {
     /**
      * All Objects loaded except [io.github.deficuet.unitykt.data.AssetBundle]
      */
-    val objects get() = contexts.flatMap { context -> context.objects.filter { it.mPathID != 1L } }
+    val objects get() = contexts.flatMap { context ->
+        sequence {
+            for (obj in context.objects) {
+                if (obj.key != 1L) {
+                    yield(obj.value)
+                }
+            }
+        }
+    }
 
     /**
      * Multi-dictionary of objects associated with their mPathID
diff --git a/src/main/kotlin/io/github/deficuet/unitykt/file/SerializedFile.kt b/src/main/kotlin/io/github/deficuet/unitykt/file/SerializedFile.kt
index d23238e1..0309c2f7 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/file/SerializedFile.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/file/SerializedFile.kt
@@ -189,9 +189,7 @@ class SerializedFile(
     var buildType = BuildType("")
         private set
     val externals: List<FileIdentifier>
-    val objects: List<Object>
-    val objectDict: Map<Long, Object>
-        get() = objects.associateBy { it.mPathID }
+    val objects: Map<Long, Object>
 
     init {
         if (hVersion >= FormatVersion.Unknown_9) {
@@ -324,7 +322,7 @@ class SerializedFile(
             reader.readStringUntilNull()
         } else ""
         //region readObjects
-        val objectList = mutableListOf<Object>()
+        val objectMap = mutableMapOf<Long, Object>()
         for (info in objectInfoList) {
             val obj = when (info.type) {
                 ClassIDType.Animation -> Animation(this, info)
@@ -358,10 +356,10 @@ class SerializedFile(
                 ClassIDType.ResourceManager -> ResourceManager(this, info)
                 else -> Object(this, info)
             }
-            objectList.add(obj)
+            objectMap[obj.mPathID] = obj
         }
-        objects = objectList
-        root.objects.addAll(objects)
+        objects = objectMap
+        root.objects.putAll(objects)
         objectInfoList.clear()
         //endregion
     }
diff --git a/src/main/kotlin/io/github/deficuet/unitykt/util/utils.kt b/src/main/kotlin/io/github/deficuet/unitykt/util/utils.kt
index e1ed7e27..b3c2a5c9 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/util/utils.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/util/utils.kt
@@ -22,8 +22,8 @@ internal fun ByteArray.decodeToString(charset: Charset = Charsets.UTF_8) =
 internal fun ByteArray.toHalf(): Float {
     if (size != 2) throw IllegalStateException("There should be 2 bytes only")
     val intValue = this[0].toIntBits().shl(8).or(this[1].toIntBits())
-    var mantissa = intValue and 0x03FF
-    var exp = intValue and 0x7C00
+    var mantissa = intValue.and(0x03FF)
+    var exp = intValue.and(0x7C00)
     if (exp == 0x7C00) exp = 0x3FC00
     else if (exp != 0) {
         exp += 0x1C000
@@ -35,10 +35,10 @@ internal fun ByteArray.toHalf(): Float {
     } else if (mantissa != 0) {
         exp = 0x1C400
         do {
-            mantissa = mantissa shl 1
+            mantissa = mantissa.shl(1)
             exp -= 0x400
-        } while (mantissa and 0x400 == 0)
-        mantissa = mantissa and 0x3FF
+        } while (mantissa.and(0x400) == 0)
+        mantissa = mantissa.and(0x3FF)
     }
     return Float.fromBits(
         intValue.and(0x8000).shl(16).or(exp.or(mantissa).shl(13))
diff --git a/src/main/kotlin/io/github/deficuet/unitykt/utils.kt b/src/main/kotlin/io/github/deficuet/unitykt/utils.kt
index 7e17eddb..e3e89a16 100644
--- a/src/main/kotlin/io/github/deficuet/unitykt/utils.kt
+++ b/src/main/kotlin/io/github/deficuet/unitykt/utils.kt
@@ -72,4 +72,8 @@ inline fun <reified T: Object> List<Object>.objectFromPathID(pathId: Long): T {
     return first { it.mPathID == pathId } as T
 }
 
+inline fun <reified T: Object> Map<Long, Object>.getAs(pathId: Long): T {
+    return this[pathId].cast()
+}
+
 inline fun <reified T> Any?.cast(): T = this as T
\ No newline at end of file