From 88a6b32e792910e11451da18eb5fb8c103235842 Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Thu, 28 Apr 2022 13:58:20 +0800
Subject: +misc

---
 .../LightCone - Volumetric Spotlight/LightCone.cs  | 215 +++++++++++++++++++++
 1 file changed, 215 insertions(+)
 create mode 100644 SurvivalTest/Assets/ACS-17/LightCone - Volumetric Spotlight/LightCone.cs

(limited to 'SurvivalTest/Assets/ACS-17/LightCone - Volumetric Spotlight/LightCone.cs')

diff --git a/SurvivalTest/Assets/ACS-17/LightCone - Volumetric Spotlight/LightCone.cs b/SurvivalTest/Assets/ACS-17/LightCone - Volumetric Spotlight/LightCone.cs
new file mode 100644
index 0000000..edfc47d
--- /dev/null
+++ b/SurvivalTest/Assets/ACS-17/LightCone - Volumetric Spotlight/LightCone.cs	
@@ -0,0 +1,215 @@
+#define LightCone_OnDrawGizmos_Collide
+
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+[RequireComponent( typeof(Light) )]
+public class LightCone : MonoBehaviour {
+    public int          wedges = 36;
+    public float        dist = 20;
+    public float        width = 2;
+    public float        height = 2;
+    [SerializeField]
+	private Color       _color = new Color(1, 1, 1, 0.25f);
+	public LayerMask    collidesWith;
+    public int          gizmoWedges = 4;
+
+    [Header("Spotlight Settings")]
+    public bool         spotlightEnabled = true;
+    public float        spotAnglePercent = 100;
+    public float        rangePercent = 100;
+
+
+
+    MeshFilter          mF;
+    Mesh                m;
+    Vector3[]           verts;
+    int[]               tris;
+    Material            mat;
+	RaycastHit[]        hits;
+    
+	private Light       lt;
+    private float       dist0, width0, sAP0, rP0;
+
+	public Color color
+	{
+		get
+		{
+			return _color;
+		}
+
+		set
+		{
+			_color = value;
+			UpdateLight();
+		}
+	}
+
+	// Use this for initialization
+	void Start () {
+        mF = GetComponent<MeshFilter>();
+        m = mF.mesh;
+
+        m.Clear();
+
+        MakeVerts();
+
+        tris = new int[wedges*3];
+
+        int triN=0;
+        int vertN=1;
+        for (int i=0; i<wedges; i++) {
+            tris[triN] = 0;
+            triN++;
+            if (vertN < verts.Length-1) { 
+                tris[triN] = vertN+1;
+            } else {
+                tris[triN] = 1;
+            }
+            triN++;
+            tris[triN] = vertN;
+            vertN++;
+            triN++;
+        }
+        m.triangles = tris;
+
+        mat = GetComponent<Renderer>().material;
+
+        UpdateLight();
+	}
+
+    void MakeVerts() {
+        verts = new Vector3[wedges+1];
+        verts[0] = Vector3.zero;
+
+        Vector3 v, r;
+        hits = new RaycastHit[wedges];
+        for (int i=0; i<wedges; i++) {
+            v = Vector3.zero;
+            v.z = dist;
+            v.x = Mathf.Cos(i * Mathf.PI * 2 / wedges) * width;
+            v.y = Mathf.Sin(i * Mathf.PI * 2 / wedges) * height;
+            r = transform.rotation * v.normalized;
+            if ( Physics.Raycast(transform.position, r, out hits[i], v.magnitude, collidesWith) ) {
+                v = v.normalized * hits[i].distance;
+			}
+            verts[i+1] = v;
+        }
+        m.vertices = verts;
+    }
+	
+	// Update is called once per frame
+	void Update () {
+        MakeVerts();
+        if (color != mat.color) {
+            mat.color = color;
+        }
+	}
+
+    // This draws the outline when not playing (and Selected)
+    void OnDrawGizmosSelected() {
+        if (Application.isPlaying) return;
+        Vector3[] pts = new Vector3[gizmoWedges];
+        Vector3 v, vDir;
+
+        Color litColor = color;
+        litColor.a = 1;
+#if LightCone_OnDrawGizmos_Collide
+        Color grayColor = Color.Lerp(Color.clear, color, 0.5f);
+        grayColor.a = 0.5f;
+#else
+        Gizmos.color = litColor;
+#endif
+
+        for (int i=0; i<gizmoWedges; i++) {
+            v = Vector3.zero;
+            v.z = dist;
+            v.x = Mathf.Cos(i * Mathf.PI * 2 / gizmoWedges) * width;
+            v.y = Mathf.Sin(i * Mathf.PI * 2 / gizmoWedges) * height;
+            vDir = transform.rotation * v;
+            pts[i] = vDir;
+            pts[i] += transform.position;
+
+#if LightCone_OnDrawGizmos_Collide
+#else
+            Gizmos.DrawLine(transform.position, pts[i]);
+            if (i>0) {
+                Gizmos.DrawLine(pts[i-1], pts[i]);
+                if (i == gizmoWedges-1) {
+                    Gizmos.DrawLine(pts[i], pts[0]);
+                }
+            }
+#endif
+        }
+
+#if LightCone_OnDrawGizmos_Collide
+        Vector3[] ptsColl = new Vector3[gizmoWedges];
+        RaycastHit hitInfo;
+        for (int i = 0; i < pts.Length; i++) {
+            ptsColl[i] = pts[i];
+            vDir = ptsColl[i] - transform.position;
+            if (Physics.Raycast(transform.position, vDir, out hitInfo, vDir.magnitude, collidesWith))
+            {
+                // The line collided with something, so make it shorter
+                ptsColl[i] = hitInfo.point;
+            }
+
+            // Draw the area past the collision
+            Gizmos.color = grayColor;
+            Gizmos.DrawLine(ptsColl[i], pts[i]);
+            if (i > 0)
+            {
+                Gizmos.DrawLine(pts[i - 1], pts[i]);
+                if (i == gizmoWedges - 1)
+                {
+                    Gizmos.DrawLine(pts[i], pts[0]);
+                }
+            }
+            // Draw the collision
+            Gizmos.color = litColor;
+            Gizmos.DrawLine(transform.position, ptsColl[i]);
+            if (i > 0)
+            {
+                Gizmos.DrawLine(ptsColl[i - 1], ptsColl[i]);
+                if (i == gizmoWedges - 1)
+                {
+                    Gizmos.DrawLine(ptsColl[i], ptsColl[0]);
+                }
+            }
+        }
+#endif
+
+    }
+
+    private void OnDrawGizmos()
+    {
+        if (Application.isPlaying) return;
+        UpdateLight();
+    }
+
+    void UpdateLight() {
+        if (lt == null)  {
+            lt = GetComponent<Light>();
+            lt.type = LightType.Spot;
+        }
+
+        if (dist0 != dist || width0 != width || sAP0 != spotAnglePercent || rangePercent != rP0) {
+            lt.spotAngle = Mathf.Atan2(width, dist)*360/Mathf.PI * (spotAnglePercent / 100f);
+            lt.range = dist * rangePercent / 100f;
+            dist0 = dist;
+            width0 = width;
+            sAP0 = spotAnglePercent;
+            rP0 = rangePercent;
+        }
+
+        lt.color = color;
+
+        lt.enabled = spotlightEnabled;
+    }
+
+
+	public RaycastHit[] GetRaycastHits() {
+		return hits;
+	}
+}
-- 
cgit v1.1-26-g67d0