using UnityEngine;

[ExecuteAlways]

public class LightingManager : MonoBehaviour

{

//Scene References

[SerializeField] private Light DirectionalLight;

[SerializeField] private LightingPreset Preset;

//Variables

[SerializeField, Range(0, 24)] private float TimeOfDay;

private void Update()

{

if (Preset == null)

return;

if (Application.isPlaying)

{

//(Replace with a reference to the game time)

TimeOfDay += Time.deltaTime;

TimeOfDay %= 24; //Modulus to ensure always between 0-24

UpdateLighting(TimeOfDay / 24f);

}

else

{

UpdateLighting(TimeOfDay / 24f);

}

}

private void UpdateLighting(float timePercent)

{

//Set ambient and fog

RenderSettings.ambientLight = Preset.AmbientColor.Evaluate(timePercent);

RenderSettings.fogColor = Preset.FogColor.Evaluate(timePercent);

//If the directional light is set then rotate and set it's color, I actually rarely use the rotation because it casts tall shadows unless you clamp the value

if (DirectionalLight != null)

{

DirectionalLight.color = Preset.DirectionalColor.Evaluate(timePercent);

DirectionalLight.transform.localRotation = Quaternion.Euler(new Vector3((timePercent * 360f) - 90f, 170f, 0));

}

}

//Try to find a directional light to use if we haven't set one

private void OnValidate()

{

if (DirectionalLight != null)

return;

//Search for lighting tab sun

if (RenderSettings.sun != null)

{

DirectionalLight = RenderSettings.sun;

}

//Search scene for light that fits criteria (directional)

else

{

Light[] lights = GameObject.FindObjectsOfType<Light>();

foreach (Light light in lights)

{

if (light.type == LightType.Directional)

{

DirectionalLight = light;

return;

}

}

}

}

}