entity rotation: use normalizeAssign over normalize

This safes a few bytes of memory allocation each call

src/main/java/de/bixilon/minosoft/data/entities/EntityRotation.kt

@@ -1,6 +1,6 @@
 /*
  * Minosoft
- * Copyright (C) 2020-2023 Moritz Zwerger
+ * Copyright (C) 2020-2024 Moritz Zwerger
  *
  * This program 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.
  *
@@ -33,7 +33,7 @@ data class EntityRotation(
                 yawRad.sin * pitchCos,
                 -pitchRad.sin,
                 yawRad.cos * pitchCos
-            ).normalize()
+            ).normalizeAssign()
         }
 
     override fun toString(): String {

src/main/java/de/bixilon/minosoft/gui/rendering/camera/CameraDefinition.kt

@@ -1,6 +1,6 @@
 /*
  * Minosoft
- * Copyright (C) 2020-2023 Moritz Zwerger
+ * Copyright (C) 2020-2024 Moritz Zwerger
  *
  * This program 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.
  *
@@ -21,5 +21,4 @@ object CameraDefinition {
     const val NEAR_PLANE = 0.01f
     const val FAR_PLANE = World.MAX_RENDER_DISTANCE * ProtocolDefinition.SECTION_LENGTH.toFloat()
     val CAMERA_UP_VEC3 = Vec3(0.0f, 1.0f, 0.0f)
-
 }

src/main/java/de/bixilon/minosoft/gui/rendering/camera/MatrixHandler.kt

@@ -165,8 +165,8 @@ class MatrixHandler(
 
     private fun updateFront(front: Vec3) {
         this.front = front
-        this.right = (front cross CAMERA_UP_VEC3).normalize()
-        this.up = (this.right cross front).normalize()
+        this.right = (front cross CAMERA_UP_VEC3).normalizeAssign()
+        this.up = (this.right cross front).normalizeAssign()
     }
 
     private fun updateShaders(cameraPosition: Vec3) {