koobas.hobune.stream
Switch multiple lights On/Off ?
Hi, I'm a beginner using Unity and C# so please bare with me if I don't have the tech vocabulary.
So, I have a room with lights on walls and sealing.
The Character (first-person) must interact/hit a cube (switch) on the wall to turn lights on/off.
Because I have multiple lights in this scene, the lights from the room are child to an empty game object with "roomLights" tag.
The character must hit the switch to turn off/on only the room lights (event/trigger to target the roomLights tag).
I've watched some tutorials but some of them are old and using javascript which is a no-no for me.
Any directions or maybe the C# sample would be helpful.
Thank you.
There are many diferent ways of doing that. The code line you are interested on is "gameObject.SetActive(true); and gameObject.SetActive(false);" you can also "lightcomponent.enable = true; or = false;" I usually use setactive becouse i become a little paranoid sometimes having a component still working even if i disable it.
And this being said, you have to figure out how to reach that code, you can do it from a simple trigger to a complex Raycast system. If i'm not wrong you can do it with OnMouseDawn () function to. It was a long since the last time i use OnMouseDawn so i cant recomend it. But if you want the character not only to be close to the switch but also looking at it, you should use either OnMouseDawn or Raycast.
So I have this script applied to an object switch that can switch on/off only one light, how can I modify it so that I can insert multiple lights in the editor? Do I need to use an array? How is it done in the editor? Many thanks
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEditor;
public class LightSwitchObj : MonoBehaviour
{
public GameObject linkedLight;
private bool lightStatus = false;
void OnMouseDown()
{
if (lightStatus == false)
{
linkedLight.SetActive(true);
lightStatus = true;
}
else if(lightStatus == true)
{
linkedLight.SetActive(false);
lightStatus = false;
}
}
}
If you want the lights to be toggled on and off according to their previous state
using UnityEngine;
public class LightSwitchObj : $$anonymous$$onoBehaviour
{
public GameObject[] lights;
void On$$anonymous$$ouseDown()
{
foreach(var light in lights)
{
light.SetActive(!light.activeSelf);
}
}
}
If you want the lights to "share the same state" (all enabled / disabled at the same time)
using UnityEngine;
public class LightSwitchObj : $$anonymous$$onoBehaviour
{
public GameObject[] lights;
private bool lightEnabled;
void On$$anonymous$$ouseDown()
{
lightEnabled = !lightEnabled;
foreach(var light in lights)
{
light.SetActive(lightEnabled);
}
}
}
If you want only one light to be enabled at a time
using UnityEngine;
public class LightSwitchObj : $$anonymous$$onoBehaviour
{
public GameObject[] lights;
private int enabledLightIndex;
void On$$anonymous$$ouseDown()
{
enabledLightIndex = (enabledLightIndex + 1) % lights.Length;
for(int lightIndex = 0 ; lightIndex < lights.Length ; ++lightIndex)
{
lights[lightIndex].SetActive(lightIndex == enabledLightIndex);
}
}
}
$$anonymous$$any thanks! The second case will do for me. However I need also to rotate the switch a bit, where do I insert this code into your sintax? Is there also a way to modify the intesity of the lights all at the same time? I am planning to use a fader switch. Sorry for asking so many quaestions, but this will complete my prefab, I can share it after this...
rotswitch.transform.Rotate(0, 0, 10);
...
rotswitch.transform.Rotate(0, 0, -10);
you can call light.transform.Rotate(0, 0, 10) inside the foreach, but this will rotate all the lights each time the lights are enabled / disabled.
To change the intensity, call light.GetComponent<Light>().intensity = /* your value*/; inside the foreach. But again, it will change the intensity for all the lights each time the lights are enabled / disabled.
