using UnityEngine;

namespace AmazingAssets.TerrainToMesh.Example
{
	[RequireComponent(typeof(MeshFilter), typeof(MeshRenderer))]
	public class ExportMeshAndBasemapByPositionIndex : MonoBehaviour
	{
		public TerrainData terrainData;

		public int vertexCountHorizontal = 100;

		public int vertexCountVertical = 100;

		[Space(10f)]
		public bool exportHoles;

		public int mapsResolution = 512;

		[Header("Chunk count is 4x4")]
		[Range(0f, 3f)]
		public int positionX;

		[Range(0f, 3f)]
		public int positionY;

		private int chunkCountHorizontal = 4;

		private int chunkCountVertical = 4;

		private void Start()
		{
			if (!(terrainData == null))
			{
				Mesh sharedMesh = terrainData.TerrainToMesh().ExportMesh(vertexCountHorizontal, vertexCountVertical, chunkCountHorizontal, chunkCountVertical, positionX, positionY, perChunkUV: true, Normal.CalculateFromMesh);
				GetComponent<MeshFilter>().sharedMesh = sharedMesh;
				Texture2D value = terrainData.TerrainToMesh().ExportBasemapDiffuseTexture(mapsResolution, chunkCountHorizontal, chunkCountVertical, positionX, positionY, exportHoles, unpack: false);
				Texture2D texture2D = terrainData.TerrainToMesh().ExportBasemapNormalTexture(mapsResolution, chunkCountHorizontal, chunkCountVertical, positionX, positionY, unpack: false);
				Texture2D texture2D2 = terrainData.TerrainToMesh().ExportBasemapMaskTexture(mapsResolution, chunkCountHorizontal, chunkCountVertical, positionX, positionY, unpack: false);
				Material material = new Material(Shader.Find("Standard"));
				material.SetTexture("_MainTex", value);
				material.SetTexture("_BumpMap", texture2D);
				if (texture2D2 != null)
				{
					material.SetTexture("_MetallicGlossMap", texture2D2);
					material.EnableKeyword("_METALLICGLOSSMAP");
				}
				if (texture2D != null)
				{
					material.EnableKeyword("_NORMALMAP");
				}
				if (exportHoles)
				{
					material.SetFloat("_Mode", 1f);
					material.EnableKeyword("_ALPHATEST_ON");
				}
				GetComponent<Renderer>().sharedMaterial = material;
			}
		}
	}
}