Created
March 27, 2019 18:34
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Animated Terrain in Unity using height maps, Perlin Noise and Terrains as seen here - https://www.youtube.com/watch?v=V2zzUbfcnQU
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| using System.Collections; | |
| using System.Collections.Generic; | |
| using UnityEngine; | |
| public class TerrainScript : MonoBehaviour | |
| { | |
| Terrain terrain; | |
| public int depth = 20; | |
| public int width = 256; | |
| public int height = 256; | |
| public float scale = 8f; | |
| public float offsetX; | |
| public float offsetY; | |
| public float terrainXSpeed = 1.42f; | |
| private void Start() { | |
| offsetX = Random.Range(0f, 9999f); | |
| offsetY = Random.Range(0f, 9999f); | |
| } | |
| void Update() | |
| { | |
| terrain = GetComponent<Terrain>(); | |
| terrain.terrainData = GenerateTerrain(terrain.terrainData); | |
| offsetX += Time.deltaTime * terrainXSpeed; | |
| } | |
| TerrainData GenerateTerrain(TerrainData terrainData) { | |
| terrainData.heightmapResolution = width + 1; | |
| terrainData.size = new Vector3(width, depth, height); | |
| terrainData.SetHeights(0, 0, GenerateHeights()); | |
| return terrainData; | |
| } | |
| float[,] GenerateHeights() { | |
| float[,] heights = new float[width, height]; | |
| for (int x = 0; x < width; x++) { | |
| for (int y = 0; y < height; y++) { | |
| heights[x, y] = CalucalteHeight(x, y); | |
| } | |
| } | |
| return heights; | |
| } | |
| float CalucalteHeight(int x, int y) { | |
| float xCoord = (float) x / width * scale + offsetX; | |
| float yCoord = (float) y / height * scale + offsetY; | |
| return Mathf.PerlinNoise(xCoord, yCoord); | |
| } | |
| } |
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