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using System.Collections.Generic;
using UnityEngine;
namespace DeepSky.Haze;
[ExecuteInEditMode]
[AddComponentMenu("DeepSky Haze/Controller", 51)]
public class DS_HazeCore : MonoBehaviour
{
public enum HeightFalloffType
{
Exponential,
None
}
public enum NoiseTextureSize
{
x8 = 8,
x16 = 0x10,
x32 = 0x20
}
public enum DebugGUIPosition
{
TopLeft,
TopCenter,
TopRight,
CenterLeft,
Center,
CenterRight,
BottomLeft,
BottomCenter,
BottomRight
}
public static string kVersionStr = "DeepSky Haze v1.4.0";
private static int kGUIHeight = 180;
private static DS_HazeCore instance;
[SerializeField]
[Range(0f, 1f)]
[Tooltip("The time at which Zones will evaluate their settings. Animate this or set in code to create time-of-day transitions.")]
private float m_Time;
[SerializeField]
[Tooltip("The height falloff method to use globally (default Exponential).")]
private HeightFalloffType m_HeightFalloff;
[SerializeField]
private List<DS_HazeZone> m_Zones = new List<DS_HazeZone>();
[SerializeField]
private DebugGUIPosition m_DebugGUIPosition;
private HashSet<DS_HazeLightVolume> m_LightVolumes = new HashSet<DS_HazeLightVolume>();
[SerializeField]
private Texture3D m_NoiseLUT;
[SerializeField]
private bool m_ShowDebugGUI;
private Vector2 m_GUIScrollPosition;
private int m_GUISelectedView = -1;
private bool m_GUISelectionPopup;
private DS_HazeView m_GUIDisplayedView;
public static DS_HazeCore Instance
{
get
{
if (instance == null)
{
instance = Object.FindObjectOfType<DS_HazeCore>();
}
return instance;
}
}
public float Time
{
get
{
return m_Time;
}
set
{
m_Time = Mathf.Clamp01(value);
}
}
public Texture3D NoiseLUT => m_NoiseLUT;
public HeightFalloffType HeightFalloff
{
get
{
return m_HeightFalloff;
}
set
{
m_HeightFalloff = value;
SetGlobalHeightFalloff();
}
}
private void SetGlobalHeightFalloff()
{
switch (m_HeightFalloff)
{
case HeightFalloffType.Exponential:
Shader.DisableKeyword("DS_HAZE_HEIGHT_FALLOFF_NONE");
break;
case HeightFalloffType.None:
Shader.EnableKeyword("DS_HAZE_HEIGHT_FALLOFF_NONE");
break;
}
}
private void OnTransformChildrenChanged()
{
m_Zones.Clear();
DS_HazeZone[] componentsInChildren = GetComponentsInChildren<DS_HazeZone>(includeInactive: true);
m_Zones.AddRange(componentsInChildren);
}
private void Awake()
{
if (instance == null)
{
instance = this;
}
else if (instance != this)
{
Debug.LogError("DeepSky::DS_HazeCore:Awake - There is more than one Haze Controller in this scene! Disabling " + base.name);
base.enabled = false;
}
}
private void OnEnable()
{
SetGlobalHeightFalloff();
Shader.SetGlobalTexture("_SamplingOffsets", m_NoiseLUT);
}
private void Reset()
{
OnTransformChildrenChanged();
}
public void SetGlobalNoiseLUT()
{
Shader.SetGlobalTexture("_SamplingOffsets", m_NoiseLUT);
}
public void AddLightVolume(DS_HazeLightVolume lightVolume)
{
RemoveLightVolume(lightVolume);
m_LightVolumes.Add(lightVolume);
}
public void RemoveLightVolume(DS_HazeLightVolume lightVolume)
{
m_LightVolumes.Remove(lightVolume);
}
public void GetRenderLightVolumes(Vector3 cameraPosition, List<DS_HazeLightVolume> lightVolumes, List<DS_HazeLightVolume> shadowVolumes)
{
foreach (DS_HazeLightVolume lightVolume in m_LightVolumes)
{
if (lightVolume.WillRender(cameraPosition))
{
if (lightVolume.CastShadows)
{
shadowVolumes.Add(lightVolume);
}
else
{
lightVolumes.Add(lightVolume);
}
}
}
}
public DS_HazeContextItem GetRenderContextAtPosition(Vector3 position)
{
List<DS_HazeZone> list = new List<DS_HazeZone>();
for (int i = 0; i < m_Zones.Count; i++)
{
if (m_Zones[i].Contains(position) && m_Zones[i].enabled)
{
list.Add(m_Zones[i]);
}
}
if (list.Count == 0)
{
return null;
}
if (list.Count == 1)
{
return list[0].Context.GetContextItemBlended(m_Time);
}
list.Sort((DS_HazeZone z1, DS_HazeZone z2) => (!(z1 < z2)) ? 1 : (-1));
DS_HazeContextItem contextItemBlended = list[0].Context.GetContextItemBlended(m_Time);
float num = 0f;
for (int j = 1; j < list.Count; j++)
{
num = list[j].GetBlendWeight(position);
contextItemBlended.Lerp(list[j].Context.GetContextItemBlended(m_Time), num);
}
return contextItemBlended;
}
}
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