Hi Everyone,
I wrote a small method which clones a specific object 3 assign each one of them a color {red, blue and yellow} and spawns them at random locations within a square of size {12,12,12}. These targets can however overlap and I was curious if there is a way to ensure that they always maintain a minimal distance from each other, so that they do not spawn within each other. Since each objects has a collider I figured something like Physics.CheckSphere could do the trick. Any concrete examples that could help me understand how this could work ?
Id be happy to learn more.
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Gen_Target : MonoBehaviour
{
// defines a Gameobject "Targetprefab" to be selected in the Unity envir.
// that is to be generated/cloned n number of times (see int numTargets=3)
public GameObject Targetobj;
public Game_Manager GameManager;
// defines a Gameobject "goal", which is the initial green goal object in the ML agents reacher example
public GameObject goal;
public GameObject agent;
// defines the condition whether target generation is at random locations or fixed to be select in Unity envir.
public bool random_location = false;
// define two vectors of size 3 to store x,y,z coordinates, centered and sized
// according to the size of the empty game object, which defines all possible
// location in 3D space for 4 targets to spawn randomly
// center used to determine middle point of the 3D cubic spawning area
public Vector3 center;
public Vector3 size;
// Defines parameters for targets, since we start with 1 inital target, if
// total number of targets desired is 4, numTargets = 3 new targets + 1 initial target = 4 total
int numTargets = 3;
int i = 0;
void Start()
{
}
public void init()
{
if (random_location == true)
{
//randomize location of initial goal/target object
Vector3 pos = center + new Vector3(Random.Range(-size.x / 2, size.x / 2), Random.Range(-size.y / 2, size.y / 2), Random.Range(-size.z / 2, size.z / 2));
goal.transform.position = pos;
}
else if (random_location == false)
{
Vector3 pos = new Vector3(8.5f + agent.transform.position.x, -3.1f + agent.transform.position.y, 0.9f + agent.transform.position.z);
}
while (i != numTargets)
{
SpawnTarget(i);
i = i + 1;
}
}
// define a color map for targets
Color[] colors = { Color.yellow, Color.blue, Color.red };
string[] colorNames = { "Yellow", "Blue", "Red" };
public void SpawnTarget(int i)
{
if (random_location == true)
{
// takes center of empty square game object, plus minus max ranged divided 2 for x,y,z to generate
// numTargets within the space at random location
Vector3 pos = center + new Vector3(Random.Range(-size.x / 2, size.x / 2), Random.Range(-size.y / 2, size.y / 2), Random.Range(-size.z / 2, size.z / 2));
GameObject newObject = Instantiate(Targetobj, pos, Quaternion.identity);
// newObject sets parent to parent of Targetobj
newObject.transform.parent = Targetobj.transform.parent;
// assignes tag = "Target" for each generated target
newObject.tag = "Target";
// change color of Targets
newObject.GetComponent<Renderer>().material.color = colors[i];
newObject.transform.name = colorNames[i];
}
else if (random_location == false)
{
// takes center of empty square game object, plus minus max ranged divided 2 for x,y,z to generate
// numTargets within the space at random location
//Vector3 pos = center + new Vector3((size.x / 2 )+i, (size.y / 2)+i, (size.z / 2)+i);
Vector3 pos = new Vector3(8.5f + agent.transform.position.x, -3.1f + agent.transform.position.y, 0.9f + agent.transform.position.z);
switch (i)
{
case 0:
pos = new Vector3(-8.5f + agent.transform.position.x, -3.1f + agent.transform.position.y, 0.9f + agent.transform.position.z);
//pos = center + new Vector3(-8 , 0, 0);
break;
case 1:
//pos = center + new Vector3(0, 0, -12 );
pos = new Vector3(0 + agent.transform.position.x, -3.1f + agent.transform.position.y, -8.5f + agent.transform.position.z);
break;
case 2:
//pos = center + new Vector3(0 , 0, 12);
pos = new Vector3(0 + agent.transform.position.x, -3.1f + agent.transform.position.y, 8.5f + agent.transform.position.z);
break;
}
//Vector3 pos = center + new Vector3(8+i, -3, 1+i);
GameObject newObject = Instantiate(Targetobj, pos, Quaternion.identity);
// newObject sets parent to parent of Targetobj
newObject.transform.parent = Targetobj.transform.parent;
// assignes tag = "Target" for each generated target
newObject.tag = "Target";
// change color of Targets
newObject.GetComponent<Renderer>().material.color = colors[i];
newObject.transform.name = colorNames[i];
}
}
// Defines color, cube object form of the empty game object
void OnDrawGizmosSelected()
{
Gizmos.color = new Color(1, 0, 0, 0.5f);
Gizmos.DrawCube(center, size);
}
void Update()
{
//Debug.Log(GameManager.sequence_end + "!!!");
if (GameManager.sequence_end == true)
{
Vector3 pos = center + new Vector3(Random.Range(-size.x / 2, size.x / 2), Random.Range(-size.y / 2, size.y / 2), Random.Range(-size.z / 2, size.z / 2));
goal.transform.position = pos;
//Debug.Log(GameManager.sequence_end + "!!!!");
GameManager.sequence_end = false;
}
}
}
