basic level generator

Assets/Code/Gameplay/Level/LevelBuilder.cs

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+using System.Collections.Generic;
+using UnityEngine;
+
+public class LevelBuilder : MonoBehaviour
+{
+    [Header("Tile Settings")]
+    [SerializeField] private GameObject[] tilePrefabs;
+    [SerializeField] private float tileLength = 6f;
+    [SerializeField] private int numberOfTiles = 20;
+    [SerializeField] private Transform playerTransform;
+
+    [Header("Environment Settings")]
+    [SerializeField] private GameObject[] treePrefabs;
+
+    [SerializeField] private float sideOffset = 10f;
+    [SerializeField] private float treeRandomSpread = 2f;
+
+    private readonly List<GameObject> _activeTiles = new();
+    private readonly List<GameObject> _activeEnvironment = new();
+    private float _spawnZ;
+
+    private void Start()
+    {
+        for (var i = 0; i < numberOfTiles; i++)
+        {
+            SpawnTile(i < 5 ? 0 : Random.Range(0, tilePrefabs.Length));
+        }
+    }
+
+    private void Update()
+    {
+        if (playerTransform.position.z - 35 > _spawnZ - numberOfTiles * tileLength)
+        {
+            SpawnTile(Random.Range(0, tilePrefabs.Length));
+            DeleteTile();
+        }
+    }
+
+    private void SpawnTile(int tileIndex)
+    {
+        var tile = Instantiate(tilePrefabs[tileIndex], transform.forward * _spawnZ, transform.rotation);
+        _activeTiles.Add(tile);
+
+        SpawnEnvironment(_spawnZ);
+
+        _spawnZ += tileLength;
+    }
+
+    private void SpawnEnvironment(float zPos)
+    {
+        var envContainer = new GameObject("EnvGroup_" + zPos);
+        envContainer.transform.SetParent(transform);
+
+        CreateTree(-sideOffset, zPos, envContainer.transform);
+        CreateTree(sideOffset, zPos, envContainer.transform);
+
+        _activeEnvironment.Add(envContainer);
+    }
+
+    private void CreateTree(float xOffset, float zPos, Transform parent)
+    {
+        if (treePrefabs.Length == 0) return;
+
+        var finalX = xOffset + Random.Range(-treeRandomSpread, treeRandomSpread);
+        var finalZ = zPos + Random.Range(-treeRandomSpread, treeRandomSpread);
+        var spawnPos = new Vector3(finalX, 0, finalZ);
+
+        var treePrefab = treePrefabs[Random.Range(0, treePrefabs.Length)];
+        var tree = Instantiate(treePrefab, spawnPos, Quaternion.Euler(0, Random.Range(0, 360), 0));
+        
+        tree.transform.SetParent(parent);
+    }
+
+    private void DeleteTile()
+    {
+        Destroy(_activeTiles[0]);
+        _activeTiles.RemoveAt(0);
+
+        Destroy(_activeEnvironment[0]);
+        _activeEnvironment.RemoveAt(0);
+    }
+}

Assets/Code/Gameplay/Level/LevelBuilder.cs.meta

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+fileFormatVersion: 2
+guid: a596f6fd58984b8086c3494224d3a45e
+timeCreated: 1772874458