Added seed generation

Author: BloodyFish

Assets/Scenes/SampleScene.unity

@@ -470,6 +470,8 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: ece66b02246203c45951653135a8fb29, type: 3}
   m_Name: 
   m_EditorClassIdentifier: 
+  inputSeed: 
+  seed: 0
   blockList: {fileID: 11400000, guid: e11aa234015dacb49ab4a67b64d1ccce, type: 2}
   contenentalnessToHeight: {fileID: 11400000, guid: e27670e7568ea9f4c91c9d63ed3db114, type: 2}
   useGreedyMeshing: 1

Assets/Voxels/Blocks/Block.cs

@@ -3,6 +3,6 @@
 [CreateAssetMenu(menuName = "VoxelStuff/Block")]
 public class Block : ScriptableObject
 {
-    public byte block_ID;
+    [HideInInspector] public byte block_ID;
     public Color vertexColor;
 }

Assets/Voxels/Scripts/Generation.cs

@@ -1,9 +1,13 @@
 using UnityEngine;
+using UnityEngine.InputSystem.Controls;
 
 public class Generation : MonoBehaviour
 {
     public static Generation instance;
+    [SerializeField] string inputSeed;
+    [HideInInspector] public long seed;
 
+
     public static float BLOCK_SIZE = 0.25f;
     public BlockList blockList;
     public Spline contenentalnessToHeight;
@@ -19,19 +23,42 @@ private void Awake()
     }
     private void Start()
     {
+        GenerateSeed();
+
         contentalness_1 = new Noise(Chunk.CHUNK_WIDTH, Chunk.CHUNK_LENGTH, 0.075f, Noise.NoiseType.PERLIN);
         contentalness_2 = new Noise(Chunk.CHUNK_WIDTH, Chunk.CHUNK_LENGTH, 0.1f, Noise.NoiseType.SIMPLEX);
         contentalness_3 = new Noise(Chunk.CHUNK_WIDTH, Chunk.CHUNK_LENGTH, 1f, Noise.NoiseType.SIMPLEX);
 
         Chunk.InititalizeChunks();
 
     }
-
+    
+    public void GenerateSeed()
+    {
+        if(string.IsNullOrWhiteSpace(inputSeed))
+        {
+            System.Random random = new System.Random();
+            seed = random.Next();
+            inputSeed = seed.ToString();
+        } 
+        else 
+        {   
+            int intSeed;
+            if(int.TryParse(inputSeed, out intSeed))
+            {
+                seed = intSeed;
+            }
+            else
+            {
+                seed = inputSeed.GetHashCode();
+            }
+        }
+    }
 
     public static float GetContenentalness(float xCoord, float zCoord)
     {
         float low = contentalness_1.GetNoise(xCoord, zCoord, 10); // [0, 10]
-        float mid = contentalness_2.GetNoise(xCoord, zCoord, 7); // less impact
+        float mid = contentalness_2.GetNoise(xCoord, zCoord, 8); // less impact
         float high = contentalness_3.GetNoise(xCoord,zCoord, 2); // subtle variation
 
         float combined = (low * 0.75f) + (mid * 0.5f) + (high * 0.15f);

Assets/Voxels/Scripts/Noise.cs

@@ -1,4 +1,6 @@
+using System;
 using Unity.Mathematics;
+using UnityEngine;
 
 public class Noise
 {
@@ -20,14 +22,20 @@ public Noise(float width, float length, float scale, NoiseType noiseType)
 
     public float GetNoise(float x, float y, int expansion)
     {
+        System.Random rand = new System.Random(Generation.instance.seed.GetHashCode()); // Convert the long seed into a unique int
+        float randNumX = rand.Next(-10000, 10000); // First number in sequence
+        float randNumY = rand.Next(-10000, 10000); // Second number in sequence
+        float2 offset = new float2(randNumX, randNumY);
+
         float raw = 0;
+        float2 value = new float2(x / width, y / length) * scale + offset;
         switch (chosenNoiseType)
         {
             case NoiseType.PERLIN:
-                raw = noise.cnoise(new float2(x / width * scale, y / length * scale)); // Returns [-1, 1];
+                raw = noise.cnoise(value); // Returns [-1, 1];
                 break;
             case NoiseType.SIMPLEX:
-                raw = noise.snoise(new float2(x / width * scale, y / length * scale));
+                raw = noise.snoise(value);
                 break;
         }