c#/unity编程
我对编程非常陌生，只在一月份开始学习。如果有人能帮我编写两段代码，我将不胜感激。我想做的是在统一中创建无限地形，然后地形应该生成。这两段代码都已经完成了，但我不知道如何让它们一起工作。。。请帮忙 我想让地形无限，并且已经有了代码，但是在程序生成中，我只能让它在指定的数字上工作，就像这样（2）。。见下文c#/unity编程,c#,C#,我对编程非常陌生，只在一月份开始学习。如果有人能帮我编写两段代码，我将不胜感激。我想做的是在统一中创建无限地形，然后地形应该生成。这两段代码都已经完成了，但我不知道如何让它们一起工作。。。请帮忙 我想让地形无限，并且已经有了代码，但是在程序生成中，我只能让它在指定的数字上工作，就像这样（2）。。见下文 //Terrain settings public int m_tilesX = 2; //Number of terrain tiles on the x axis public
//Terrain settings
public int m_tilesX = 2; //Number of terrain tiles on the x axis
public int m_tilesZ = 2; //Number of terrain tiles on the z axis
public float m_pixelMapError = 6.0f; //A lower pixel error will draw terrain at a higher Level of detail but will be slower
public float m_baseMapDist = 1000.0f; //The distance at which the low res base map will be drawn. Decrease to increase performance
using UnityEngine;
using System.Collections;
public class InfiniteTerrain : MonoBehaviour
{
public GameObject PlayerObject;
private Terrain[,] _terrainGrid = new Terrain[3,3];
void Start ()
{
Terrain linkedTerrain = gameObject.GetComponent<Terrain>();
_terrainGrid[0,0] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[0,1] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[0,2] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[1,0] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[1,1] = linkedTerrain;
_terrainGrid[1,2] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[2,0] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[2,1] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
_terrainGrid[2,2] = Terrain.CreateTerrainGameObject(linkedTerrain.terrainData).GetComponent<Terrain>();
UpdateTerrainPositionsAndNeighbors();
}
private void UpdateTerrainPositionsAndNeighbors()
{
_terrainGrid[0,0].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x - _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z + _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[0,1].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x - _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z);
_terrainGrid[0,2].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x - _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z - _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[1,0].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z + _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[1,2].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z - _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[2,0].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x + _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z + _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[2,1].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x + _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z);
_terrainGrid[2,2].transform.position = new Vector3(
_terrainGrid[1,1].transform.position.x + _terrainGrid[1,1].terrainData.size.x,
_terrainGrid[1,1].transform.position.y,
_terrainGrid[1,1].transform.position.z - _terrainGrid[1,1].terrainData.size.z);
_terrainGrid[0,0].SetNeighbors( null, null, _terrainGrid[1,0], _terrainGrid[0,1]);
_terrainGrid[0,1].SetNeighbors( null, _terrainGrid[0,0], _terrainGrid[1,1], _terrainGrid[0,2]);
_terrainGrid[0,2].SetNeighbors( null, _terrainGrid[0,1], _terrainGrid[1,2], null);
_terrainGrid[1,0].SetNeighbors(_terrainGrid[0,0], null, _terrainGrid[2,0], _terrainGrid[1,1]);
_terrainGrid[1,1].SetNeighbors(_terrainGrid[0,1], _terrainGrid[1,0], _terrainGrid[2,1], _terrainGrid[1,2]);
_terrainGrid[1,2].SetNeighbors(_terrainGrid[0,2], _terrainGrid[1,1], _terrainGrid[2,2], null);
_terrainGrid[2,0].SetNeighbors(_terrainGrid[1,0], null, null, _terrainGrid[2,1]);
_terrainGrid[2,1].SetNeighbors(_terrainGrid[1,1], _terrainGrid[2,0], null, _terrainGrid[2,2]);
_terrainGrid[2,2].SetNeighbors(_terrainGrid[1,2], _terrainGrid[2,1], null, null);
}
void Update ()
{
Vector3 playerPosition = new Vector3(PlayerObject.transform.position.x, PlayerObject.transform.position.y, PlayerObject.transform.position.z);
Terrain playerTerrain = null;
int xOffset = 0;
int yOffset = 0;
for (int x = 0; x < 3; x++)
{
for (int y = 0; y < 3; y++)
{
if ((playerPosition.x >= _terrainGrid[x,y].transform.position.x) &&
(playerPosition.x <= (_terrainGrid[x,y].transform.position.x + _terrainGrid[x,y].terrainData.size.x)) &&
(playerPosition.z >= _terrainGrid[x,y].transform.position.z) &&
(playerPosition.z <= (_terrainGrid[x,y].transform.position.z + _terrainGrid[x,y].terrainData.size.z)))
{
playerTerrain = _terrainGrid[x,y];
xOffset = 1 - x;
yOffset = 1 - y;
break;
}
}
if (playerTerrain != null)
break;
}
if (playerTerrain != _terrainGrid[1,1])
{
Terrain[,] newTerrainGrid = new Terrain[3,3];
for (int x = 0; x < 3; x++)
for (int y = 0; y < 3; y++)
{
int newX = x + xOffset;
if (newX < 0)
newX = 2;
else if (newX > 2)
newX = 0;
int newY = y + yOffset;
if (newY < 0)
newY = 2;
else if (newY > 2)
newY = 0;
newTerrainGrid[newX, newY] = _terrainGrid[x,y];
}
_terrainGrid = newTerrainGrid;
UpdateTerrainPositionsAndNeighbors();
}
}
}
使用UnityEngine；
使用系统集合；
公共类：单一行为
{
公共游戏对象玩家对象；
私人地形[，]u terrainGrid=新地形[3,3]；
无效开始（）
{
Terrain linkedTerrain=gameObject.GetComponent（）；
_terrainGrid[0,0]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[0,1]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[0,2]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[1,0]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[1,1]=链接的terrain；
_terrainGrid[1,2]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[2,0]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[2,1]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
_terrainGrid[2,2]=Terrain.createTerraingamObject（linkedTerrain.terrainData.GetComponent（）；
UpdaterRainPositionsandNeights（）；
}
私有void updaterRainPositionsAndNeights（）
{
_terrainGrid[0,0]。transform.position=新矢量3(
_terrainGrid[1,1]。transform.position.x-_terrainGrid[1,1]。terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z+_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[0,1]。transform.position=新矢量3(
_terrainGrid[1,1]。transform.position.x-_terrainGrid[1,1]。terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z）；
_terrainGrid[0,2]。transform.position=新矢量3(
_terrainGrid[1,1]。transform.position.x-_terrainGrid[1,1]。terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z-_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[1,0]。transform.position=新矢量3(
_terrainGrid[1,1].transform.position.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z+_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[1,2]。transform.position=新矢量3(
_terrainGrid[1,1].transform.position.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z-_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[2,0]。transform.position=新矢量3(
_terrainGrid[1,1].transform.position.x+\u terrainGrid[1,1].terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z+_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[2,1]。transform.position=新矢量3(
_terrainGrid[1,1].transform.position.x+\u terrainGrid[1,1].terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z）；
_terrainGrid[2,2]。transform.position=新矢量3(
_terrainGrid[1,1].transform.position.x+\u terrainGrid[1,1].terrainData.size.x，
_terrainGrid[1,1]。transform.position.y，
_terrainGrid[1,1].transform.position.z-_terrainGrid[1,1].terrainData.size.z）；
_terrainGrid[0,0].SetNeights（null，null，_terrainGrid[1,0]，_terrainGrid[0,1]）；
_terrainGrid[0,1].SetNeights（null，_terrainGrid[0,0]，_terrainGrid[1,1]，_terrainGrid[0,2]）；
_terrainGrid[0,2].SetNeights（null，_terrainGrid[0,1]，_terrainGrid[1,2]，null）；
_terrainGrid[1,0].SetNeights（_terrainGrid[0,0]，null，_terrainGrid[2,0]，_terrainGrid[1,1]）；
_terrainGrid[1,1].SetNeights（_terrainGrid[0,1]，_terrainGrid[1,0]，_terrainGrid[2,1]，_terrainGrid[1,2]）；
_terrainGrid[1,2].SetNeights（_terrainGrid[0,2]，_terrainGrid[1,1]，_terrainGrid[2,2]，null）；
_terrainGrid[2,0].SetNeights（_terrainGrid[1,0]，null，null，_terrainGrid[2,1]）；
_terrainGrid[2,1].SetNeights（_terrainGrid[1,1]，_terrainGrid[2,0]，null，_terrainGrid[2,2]）；
_terrainGrid[2,2].SetNeights（_terrainGrid[1,2]，_terrainGrid[2,1]，null，null）；
}
无效更新（）
{
Vector3 playerPosition=新矢量3（PlayerObject.transform.position.x，PlayerObject.transform.position.y，PlayerObject.transform.position.z）；
地形播放器Terrain=null；
int xOffset=0；
int-yOffset=0；
对于（int x=0；x<3；x++）
{
对于（int y=0；y<3；y++）
{
if（（playerPosition.x>=\u terrainGrid[x，y].transform.position.x）&&
（playerPosition.x=_terrainGrid[x，y].transform.position.z）&&
（播放位置z 2）
newX=0；
int newY=y+yOffset；
if（newY<0）
newY=2；
否则如果（新的>2）
newY=0；
newTerrainGrid[newX，newY]=\u terrainGrid[x，y]；
}
_terrainGrid=新terrainGrid；
public class TerrainGenerator : MonoBehaviour
{
//Prototypes
public Texture2D m_splat0, m_splat1;
public float m_splatTileSize0 = 10.0f;
public float m_splatTileSize1 = 2.0f;
public Texture2D m_detail0, m_detail1, m_detail2;
public GameObject m_tree0, m_tree1, m_tree2;
//Noise settings. A higher frq will create larger scale details. Each seed value will create a unique look
public int m_groundSeed = 0;
public float m_groundFrq = 800.0f;
public int m_mountainSeed = 1;
public float m_mountainFrq = 1200.0f;
public int m_treeSeed = 2;
public float m_treeFrq = 400.0f;
public int m_detailSeed = 3;
public float m_detailFrq = 100.0f;
//Terrain settings
public int m_tilesX = 2; //Number of terrain tiles on the x axis
public int m_tilesZ = 2; //Number of terrain tiles on the z axis
public float m_pixelMapError = 6.0f; //A lower pixel error will draw terrain at a higher Level of detail but will be slower
public float m_baseMapDist = 1000.0f; //The distance at which the low res base map will be drawn. Decrease to increase performance
//Terrain data settings
public int m_heightMapSize = 513; //Higher number will create more detailed height maps
public int m_alphaMapSize = 1024; //This is the control map that controls how the splat textures will be blended
public int m_terrainSize = 2048;
public int m_terrainHeight = 512;
public int m_detailMapSize = 512; //Resolutions of detail (Grass) layers
//Tree settings
public int m_treeSpacing = 32; //spacing between trees
public float m_treeDistance = 2000.0f; //The distance at which trees will no longer be drawn
public float m_treeBillboardDistance = 400.0f; //The distance at which trees meshes will turn into tree billboards
public float m_treeCrossFadeLength = 20.0f; //As trees turn to billboards there transform is rotated to match the meshes, a higher number will make this transition smoother
public int m_treeMaximumFullLODCount = 400; //The maximum number of trees that will be drawn in a certain area.
//Detail settings
public DetailRenderMode detailMode;
public int m_detailObjectDistance = 400; //The distance at which details will no longer be drawn
public float m_detailObjectDensity = 4.0f; //Creates more dense details within patch
public int m_detailResolutionPerPatch = 32; //The size of detail patch. A higher number may reduce draw calls as details will be batch in larger patches
public float m_wavingGrassStrength = 0.4f;
public float m_wavingGrassAmount = 0.2f;
public float m_wavingGrassSpeed = 0.4f;
public Color m_wavingGrassTint = Color.white;
public Color m_grassHealthyColor = Color.white;
public Color m_grassDryColor = Color.white;
//Private
PerlinNoise m_groundNoise, m_mountainNoise, m_treeNoise, m_detailNoise;
Terrain[,] m_terrain;
SplatPrototype[] m_splatPrototypes;
TreePrototype[] m_treeProtoTypes;
DetailPrototype[] m_detailProtoTypes;
Vector2 m_offset;
void Start()
{
m_groundNoise = new PerlinNoise(m_groundSeed);
m_mountainNoise = new PerlinNoise(m_mountainSeed);
m_treeNoise = new PerlinNoise(m_treeSeed);
m_detailNoise = new PerlinNoise(m_detailSeed);
if (!Mathf.IsPowerOfTwo(m_heightMapSize - 1))
{
Debug.Log("TerrianGenerator::Start - height map size must be pow2+1 number");
m_heightMapSize = Mathf.ClosestPowerOfTwo(m_heightMapSize) + 1;
}
if (!Mathf.IsPowerOfTwo(m_alphaMapSize))
{
Debug.Log("TerrianGenerator::Start - Alpha map size must be pow2 number");
m_alphaMapSize = Mathf.ClosestPowerOfTwo(m_alphaMapSize);
}
if (!Mathf.IsPowerOfTwo(m_detailMapSize))
{
Debug.Log("TerrianGenerator::Start - Detail map size must be pow2 number");
m_detailMapSize = Mathf.ClosestPowerOfTwo(m_detailMapSize);
}
if (m_detailResolutionPerPatch < 8)
{
Debug.Log("TerrianGenerator::Start - Detail resolution per patch must be >= 8, changing to 8");
m_detailResolutionPerPatch = 8;
}
float[,] htmap = new float[m_heightMapSize, m_heightMapSize];
m_terrain = new Terrain[m_tilesX, m_tilesZ];
//this will center terrain at origin
m_offset = new Vector2(-m_terrainSize * m_tilesX * 0.5f, -m_terrainSize * m_tilesZ * 0.5f);
CreateProtoTypes();
for (int x = 0; x < m_tilesX; x++)
{
for (int z = 0; z < m_tilesZ; z++)
{
FillHeights(htmap, x, z);
TerrainData terrainData = new TerrainData();
terrainData.heightmapResolution = m_heightMapSize;
terrainData.SetHeights(0, 0, htmap);
terrainData.size = new Vector3(m_terrainSize, m_terrainHeight, m_terrainSize);
terrainData.splatPrototypes = m_splatPrototypes;
terrainData.treePrototypes = m_treeProtoTypes;
terrainData.detailPrototypes = m_detailProtoTypes;
FillAlphaMap(terrainData);
m_terrain[x, z] = Terrain.CreateTerrainGameObject(terrainData).GetComponent<Terrain>();
m_terrain[x, z].transform.position = new Vector3(m_terrainSize * x + m_offset.x, 0, m_terrainSize * z + m_offset.y);
m_terrain[x, z].heightmapPixelError = m_pixelMapError;
m_terrain[x, z].basemapDistance = m_baseMapDist;
//disable this for better frame rate
m_terrain[x, z].castShadows = false;
FillTreeInstances(m_terrain[x, z], x, z);
FillDetailMap(m_terrain[x, z], x, z);
}
}
//Set the neighbours of terrain to remove seams.
for (int x = 0; x < m_tilesX; x++)
{
for (int z = 0; z < m_tilesZ; z++)
{
Terrain right = null;
Terrain left = null;
Terrain bottom = null;
Terrain top = null;
if (x > 0) left = m_terrain[(x - 1), z];
if (x < m_tilesX - 1) right = m_terrain[(x + 1), z];
if (z > 0) bottom = m_terrain[x, (z - 1)];
if (z < m_tilesZ - 1) top = m_terrain[x, (z + 1)];
m_terrain[x, z].SetNeighbors(left, top, right, bottom);
}
}
}
void CreateProtoTypes()
{
//Ive hard coded 2 splat prototypes, 3 tree prototypes and 3 detail prototypes.
//This is a little inflexible way to do it but it made the code simpler and can easly be modified
m_splatPrototypes = new SplatPrototype[2];
m_splatPrototypes[0] = new SplatPrototype();
m_splatPrototypes[0].texture = m_splat0;
m_splatPrototypes[0].tileSize = new Vector2(m_splatTileSize0, m_splatTileSize0);
m_splatPrototypes[1] = new SplatPrototype();
m_splatPrototypes[1].texture = m_splat1;
m_splatPrototypes[1].tileSize = new Vector2(m_splatTileSize1, m_splatTileSize1);
m_treeProtoTypes = new TreePrototype[3];
m_treeProtoTypes[0] = new TreePrototype();
m_treeProtoTypes[0].prefab = m_tree0;
m_treeProtoTypes[1] = new TreePrototype();
m_treeProtoTypes[1].prefab = m_tree1;
m_treeProtoTypes[2] = new TreePrototype();
m_treeProtoTypes[2].prefab = m_tree2;
m_detailProtoTypes = new DetailPrototype[3];
m_detailProtoTypes[0] = new DetailPrototype();
m_detailProtoTypes[0].prototypeTexture = m_detail0;
m_detailProtoTypes[0].renderMode = detailMode;
m_detailProtoTypes[0].healthyColor = m_grassHealthyColor;
m_detailProtoTypes[0].dryColor = m_grassDryColor;
m_detailProtoTypes[1] = new DetailPrototype();
m_detailProtoTypes[1].prototypeTexture = m_detail1;
m_detailProtoTypes[1].renderMode = detailMode;
m_detailProtoTypes[1].healthyColor = m_grassHealthyColor;
m_detailProtoTypes[1].dryColor = m_grassDryColor;
m_detailProtoTypes[2] = new DetailPrototype();
m_detailProtoTypes[2].prototypeTexture = m_detail2;
m_detailProtoTypes[2].renderMode = detailMode;
m_detailProtoTypes[2].healthyColor = m_grassHealthyColor;
m_detailProtoTypes[2].dryColor = m_grassDryColor;
}
void FillHeights(float[,] htmap, int tileX, int tileZ)
{
float ratio = (float)m_terrainSize / (float)m_heightMapSize;
for (int x = 0; x < m_heightMapSize; x++)
{
for (int z = 0; z < m_heightMapSize; z++)
{
float worldPosX = (x + tileX * (m_heightMapSize - 1)) * ratio;
float worldPosZ = (z + tileZ * (m_heightMapSize - 1)) * ratio;
float mountains = Mathf.Max(0.0f, m_mountainNoise.FractalNoise2D(worldPosX, worldPosZ, 6, m_mountainFrq, 0.8f));
float plain = m_groundNoise.FractalNoise2D(worldPosX, worldPosZ, 4, m_groundFrq, 0.1f) + 0.1f;
htmap[z, x] = plain + mountains;
}
}
}
void FillAlphaMap(TerrainData terrainData)
{
float[, ,] map = new float[m_alphaMapSize, m_alphaMapSize, 2];
Random.seed = 0;
for (int x = 0; x < m_alphaMapSize; x++)
{
for (int z = 0; z < m_alphaMapSize; z++)
{
// Get the normalized terrain coordinate that
// corresponds to the the point.
float normX = x * 1.0f / (m_alphaMapSize - 1);
float normZ = z * 1.0f / (m_alphaMapSize - 1);
// Get the steepness value at the normalized coordinate.
float angle = terrainData.GetSteepness(normX, normZ);
// Steepness is given as an angle, 0..90 degrees. Divide
// by 90 to get an alpha blending value in the range 0..1.
float frac = angle / 90.0f;
map[z, x, 0] = frac;
map[z, x, 1] = 1.0f - frac;
}
}
terrainData.alphamapResolution = m_alphaMapSize;
terrainData.SetAlphamaps(0, 0, map);
}
void FillTreeInstances(Terrain terrain, int tileX, int tileZ)
{
Random.seed = 0;
for (int x = 0; x < m_terrainSize; x += m_treeSpacing)
{
for (int z = 0; z < m_terrainSize; z += m_treeSpacing)
{
float unit = 1.0f / (m_terrainSize - 1);
float offsetX = Random.value * unit * m_treeSpacing;
float offsetZ = Random.value * unit * m_treeSpacing;
float normX = x * unit + offsetX;
float normZ = z * unit + offsetZ;
// Get the steepness value at the normalized coordinate.
float angle = terrain.terrainData.GetSteepness(normX, normZ);
// Steepness is given as an angle, 0..90 degrees. Divide
// by 90 to get an alpha blending value in the range 0..1.
float frac = angle / 90.0f;
if (frac < 0.5f) //make sure tree are not on steep slopes
{
float worldPosX = x + tileX * (m_terrainSize - 1);
float worldPosZ = z + tileZ * (m_terrainSize - 1);
float noise = m_treeNoise.FractalNoise2D(worldPosX, worldPosZ, 3, m_treeFrq, 1.0f);
float ht = terrain.terrainData.GetInterpolatedHeight(normX, normZ);
if (noise > 0.0f && ht < m_terrainHeight * 0.4f)
{
TreeInstance temp = new TreeInstance();
temp.position = new Vector3(normX, ht, normZ);
temp.prototypeIndex = Random.Range(0, 3);
temp.widthScale = 1;
temp.heightScale = 1;
temp.color = Color.white;
temp.lightmapColor = Color.white;
terrain.AddTreeInstance(temp);
}
}
}
}
terrain.treeDistance = m_treeDistance;
terrain.treeBillboardDistance = m_treeBillboardDistance;
terrain.treeCrossFadeLength = m_treeCrossFadeLength;
terrain.treeMaximumFullLODCount = m_treeMaximumFullLODCount;
}
void FillDetailMap(Terrain terrain, int tileX, int tileZ)
{
//each layer is drawn separately so if you have a lot of layers your draw calls will increase
int[,] detailMap0 = new int[m_detailMapSize, m_detailMapSize];
int[,] detailMap1 = new int[m_detailMapSize, m_detailMapSize];
int[,] detailMap2 = new int[m_detailMapSize, m_detailMapSize];
float ratio = (float)m_terrainSize / (float)m_detailMapSize;
Random.seed = 0;
for (int x = 0; x < m_detailMapSize; x++)
{
for (int z = 0; z < m_detailMapSize; z++)
{
detailMap0[z, x] = 0;
detailMap1[z, x] = 0;
detailMap2[z, x] = 0;
float unit = 1.0f / (m_detailMapSize - 1);
float normX = x * unit;
float normZ = z * unit;
// Get the steepness value at the normalized coordinate.
float angle = terrain.terrainData.GetSteepness(normX, normZ);
// Steepness is given as an angle, 0..90 degrees. Divide
// by 90 to get an alpha blending value in the range 0..1.
float frac = angle / 90.0f;
if (frac < 0.5f)
{
float worldPosX = (x + tileX * (m_detailMapSize - 1)) * ratio;
float worldPosZ = (z + tileZ * (m_detailMapSize - 1)) * ratio;
float noise = m_detailNoise.FractalNoise2D(worldPosX, worldPosZ, 3, m_detailFrq, 1.0f);
if (noise > 0.0f)
{
float rnd = Random.value;
//Randomly select what layer to use
if (rnd < 0.33f)
detailMap0[z, x] = 1;
else if (rnd < 0.66f)
detailMap1[z, x] = 1;
else
detailMap2[z, x] = 1;
}
}
}
}
terrain.terrainData.wavingGrassStrength = m_wavingGrassStrength;
terrain.terrainData.wavingGrassAmount = m_wavingGrassAmount;
terrain.terrainData.wavingGrassSpeed = m_wavingGrassSpeed;
terrain.terrainData.wavingGrassTint = m_wavingGrassTint;
terrain.detailObjectDensity = m_detailObjectDensity;
terrain.detailObjectDistance = m_detailObjectDistance;
terrain.terrainData.SetDetailResolution(m_detailMapSize, m_detailResolutionPerPatch);
terrain.terrainData.SetDetailLayer(0, 0, 0, detailMap0);
terrain.terrainData.SetDetailLayer(0, 0, 1, detailMap1);
terrain.terrainData.SetDetailLayer(0, 0, 2, detailMap2);
}
}