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using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class WallsTest : MonoBehaviour
{
// using a GameObject rather than a transform
public GameObject prefab;
public Vector3 wallsStartPosition;
public float width = 0;
public float height = 1;
public float length = 2;
public Camera wallsCamera;
public float wallsArea;
void Start()
{
wallsCamera.transform.position = new Vector3(wallsStartPosition.x, wallsStartPosition.y + 100, wallsStartPosition.z - 235);
BuildWalls();
}
private void Update()
{
}
void BuildWalls()
{
for (int i = -2; i < 2; i++)
{
GameObject go = Instantiate(prefab);
go.transform.parent = transform;
Vector3 scale = Vector3.one;
Vector3 adjustedPosition = wallsStartPosition;
float sign = Mathf.Sign(i);
if ((i * sign) % 2 == 0)
{
adjustedPosition.x += (length * sign)/2;
scale.x = width;
scale.y = height;
scale.z *= length + width;
}
else
{
adjustedPosition.z += (length * sign)/2;
scale.x *= length + width;
scale.y = height;
scale.z = width;
}
adjustedPosition.y += height/2;
go.transform.localScale = scale;
go.transform.localPosition = adjustedPosition;
}
}
}
例如，长度为100，所以我认为面积将为100x100。 而我有墙壁开始位置例如250,0,250我如何生成特定给定区域之间不重叠的随机对象？
现在我想在墙面区域内实例化随机位置的对象数量。例如50个立方体。但是它们不应该相互重叠，例如彼此之间的最小差距应该是5.并且最大差距应该是可能的。
但我还不明白如何计算墙的面积和位置，只是实例化里面的随机对象。
这是在给定区域随机位置产生游戏对象的脚本。在这种情况下，该区域是地形。但是我希望该区域位于我在第一个脚本中创建的墙内。该脚本附加到像WallsTest脚本一样的空游戏对象。
SpawnObjects脚本的另一个问题是，没有任何对象之间的间隙设置，如果对象太好了，比如缩放比例为20,20,20，那么在边缘上产生的一些对象会在地形外产生一半。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class SpawnObjects : MonoBehaviour
{
public Terrain terrain;
public int numberOfObjects; // number of objects to place
private int currentObjects; // number of placed objects
public GameObject objectToPlace; // GameObject to place
private int terrainWidth; // terrain size (x)
private int terrainLength; // terrain size (z)
private int terrainPosX; // terrain position x
private int terrainPosZ; // terrain position z
void Start()
{
// terrain size x
terrainWidth = (int)terrain.terrainData.size.x;
// terrain size z
terrainLength = (int)terrain.terrainData.size.z;
// terrain x position
terrainPosX = (int)terrain.transform.position.x;
// terrain z position
terrainPosZ = (int)terrain.transform.position.z;
}
// Update is called once per frame
void Update()
{
// generate objects
if (currentObjects <= numberOfObjects)
{
// generate random x position
int posx = Random.Range(terrainPosX, terrainPosX + terrainWidth);
// generate random z position
int posz = Random.Range(terrainPosZ, terrainPosZ + terrainLength);
// get the terrain height at the random position
float posy = Terrain.activeTerrain.SampleHeight(new Vector3(posx, 0, posz));
// create new gameObject on random position
GameObject newObject = (GameObject)Instantiate(objectToPlace, new Vector3(posx, posy, posz), Quaternion.identity);
newObject.transform.localScale = new Vector3(20, 20, 20);
currentObjects += 1;
}
if (currentObjects == numberOfObjects)
{
Debug.Log("Generate objects complete!");
}
}
}