using System.Collections.Generic; using UnityEngine; public class Road : MonoBehaviour { public GameObject floorPrefab; public GameObject stripePrefab; public GameObject edgePrefab; public GameObject barrierPrefab; public GameObject barPrefab; public GameObject wallPrefab; public GameObject coinPrefab; public GameObject magnetPrefab; public GameObject shieldPrefab; public int chunkCount = 7; public float chunkLength = 20f; public float laneWidth = 2.5f; public int safeChunks = 2; private List chunks = new List(); private GameManager game; private int made; void Start() { game = FindFirstObjectByType(); for (int i = 0; i < chunkCount; i++) { Transform chunk = new GameObject("Chunk").transform; chunk.position = new Vector3(0f, 0f, i * chunkLength); Instantiate(floorPrefab, chunk.position + new Vector3(0f, -0.25f, 0f), Quaternion.identity, chunk); for (int d = 0; d < 4; d++) { float z = -7.5f + d * 5f; Instantiate(stripePrefab, chunk.position + new Vector3(-laneWidth / 2f, 0.01f, z), Quaternion.identity, chunk); Instantiate(stripePrefab, chunk.position + new Vector3(laneWidth / 2f, 0.01f, z), Quaternion.identity, chunk); } Instantiate(edgePrefab, chunk.position + new Vector3(-4.1f, 0.05f, 0f), Quaternion.identity, chunk); Instantiate(edgePrefab, chunk.position + new Vector3(4.1f, 0.05f, 0f), Quaternion.identity, chunk); chunks.Add(chunk); Fill(chunk); } } void Update() { float step = game.speed * Time.deltaTime; foreach (Transform chunk in chunks) { chunk.position += Vector3.back * step; if (chunk.position.z < -chunkLength) { chunk.position += Vector3.forward * chunkLength * chunks.Count; Clear(chunk); Fill(chunk); } } } void Clear(Transform chunk) { foreach (Transform child in chunk) { if (!child.CompareTag("Untagged")) Destroy(child.gameObject); } } void Fill(Transform chunk) { made++; if (made <= safeChunks) return; int busy = Mathf.Min(3, 1 + made / 12); int count = Random.Range(1, busy + 1); List lanes = new List { -1, 0, 1 }; int walls = 0; for (int i = 0; i < count; i++) { int pick = Random.Range(0, lanes.Count); int lane = lanes[pick]; lanes.RemoveAt(pick); int kind = Random.Range(0, 3); if (kind == 2 && walls == 2) kind = Random.Range(0, 2); if (kind == 2) walls++; Place(chunk, Obstacle(kind), lane, Height(kind), 0f); } int coinLane = Random.Range(-1, 2); for (int i = 0; i < 4; i++) Place(chunk, coinPrefab, coinLane, 1f, 4f + i * 3f); float roll = Random.value; if (roll < 0.06f) Place(chunk, magnetPrefab, Random.Range(-1, 2), 1f, -6f); else if (roll < 0.11f) Place(chunk, shieldPrefab, Random.Range(-1, 2), 1f, -6f); } GameObject Obstacle(int kind) { if (kind == 0) return barrierPrefab; if (kind == 1) return barPrefab; return wallPrefab; } float Height(int kind) { if (kind == 0) return 0.5f; if (kind == 1) return 1.95f; return 1.5f; } void Place(Transform chunk, GameObject prefab, int lane, float y, float z) { Vector3 at = chunk.position + new Vector3(lane * laneWidth, y, z); Instantiate(prefab, at, prefab.transform.rotation, chunk); } }

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