Make lorax

Assets/Prefabs/Environment/Lorax.prefab

@@ -9,6 +9,7 @@ GameObject:
   serializedVersion: 6
   m_Component:
   - component: {fileID: 6166170817692975782}
+  - component: {fileID: 5133887194504435357}
   m_Layer: 0
   m_Name: Lorax
   m_TagString: Untagged
@@ -30,3 +31,31 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!114 &5133887194504435357
+MonoBehaviour:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 6166170817692975783}
+  m_Enabled: 1
+  m_EditorHideFlags: 0
+  m_Script: {fileID: 11500000, guid: 8df7bcbf7138e33448643b71967f880c, type: 3}
+  m_Name: 
+  m_EditorClassIdentifier: 
+  Terrain: {fileID: 0}
+  Seed: 2
+  Regen: 0
+  SpawnableTrees:
+  - {fileID: 3828898392337730748, guid: b6ff003e05b42fb4e9319ea8bb82d882, type: 3}
+  - {fileID: 6700814859666117554, guid: 410d196d969ed404a883c67749ad3170, type: 3}
+  - {fileID: 2469457951508719009, guid: 46e8ab3179fc53841920eb9ab6986b24, type: 3}
+  Chances: 02000000070000000e000000
+  HeightMin: 7.5
+  HeightMax: 9
+  TreeChance: 0.9
+  CampSize: 8
+  CampMiddle: {x: -1, y: 0, z: -1}
+  RandomNudge: 3
+  Denseness: 3
+  MinimumAdjacency: 3

Assets/Scripts/Lorax.cs

@@ -0,0 +1,87 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[ExecuteAlways]
+public class Lorax : MonoBehaviour {
+
+    public Terrain Terrain;
+
+    [Header("Generic Gen")]
+    public int Seed;
+    public bool Regen = false;
+    public List<GameObject> SpawnableTrees;
+    public List<int> Chances;
+
+    [Header("Generation Details")]
+    public float HeightMin = 7.5f;
+    public float HeightMax = 9;
+    public float TreeChance = 0.9f;
+    public float CampSize = 10f;
+    public Vector3 CampMiddle;
+    public float RandomNudge = 2f;
+    public float Denseness = 4;
+    public float MinimumAdjacency = 1.5f;
+
+    private int LastSeed = -1;
+    private Vector3[][] TreePositions;
+
+    void Start() {
+
+    }
+
+    void Update() {
+        if (Application.isEditor) {
+            if (LastSeed == Seed && !Regen) {
+                return;
+            }
+            Regen = false;
+            LastSeed = Seed;
+            Random.InitState(Seed);
+            for (int x = transform.childCount - 1; x >= 0; x--) {
+                DestroyImmediate(transform.GetChild(0).gameObject);
+            }
+            int cap = (int)Mathf.Floor(500 / Denseness);
+            int[] TotalChances = new int[SpawnableTrees.Count + 1];
+            int Counter = 0;
+            for (int x = 0; x < TotalChances.Length - 1; x++) {
+                TotalChances[x + 1] = Counter + Chances[x];
+                Counter = TotalChances[x + 1];
+            }
+            TreePositions = new Vector3[cap][];
+            for (int y = 0; y < cap; y++) {
+                TreePositions[y] = new Vector3[cap];
+                for (int x = 0; x < cap; x++) {
+                    if (Random.value > TreeChance) {
+                        continue;
+                    }
+                    var pos = new Vector3(x * Denseness - 250 + Random.value * RandomNudge - RandomNudge / 2, 0, y * Denseness - 250 + Random.value * RandomNudge - RandomNudge / 2);
+                    TreePositions[y][x] = pos;
+                    if (x > 0 && (TreePositions[y][x - 1] - pos).magnitude < MinimumAdjacency) {
+                        continue;
+                    }
+                    if (y > 0 && (TreePositions[y - 1][x] - pos).magnitude < MinimumAdjacency) {
+                        continue;
+                    }
+                    if ((pos - CampMiddle).magnitude < CampSize) {
+                        continue;
+                    }
+
+                    var height = Terrain.SampleHeight(pos);
+                    if (height >= HeightMin && height <= HeightMax) {
+                        pos.y = Terrain.transform.position.y + height;
+                        var rand = Random.Range(0, TotalChances[TotalChances.Length - 1]);
+                        var Chosen = SpawnableTrees[0];
+                        for (int curr = TotalChances.Length - 2; curr > 0; curr--) {
+                            if (rand > TotalChances[curr]) {
+                                Chosen = SpawnableTrees[curr];
+                                break;
+                            }
+                        }
+                        var obj = GameObject.Instantiate(Chosen, pos, new Quaternion(), gameObject.transform);
+                    }
+                }
+            }
+        }
+    }
+}

Assets/Scripts/Lorax.cs.meta

@@ -0,0 +1,11 @@
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+guid: 8df7bcbf7138e33448643b71967f880c
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
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