From df84ee7e568fa500fec7b1865b966345b814e68f Mon Sep 17 00:00:00 2001
From: chai <chaifix@163.com>
Date: Wed, 21 Oct 2020 22:51:18 +0800
Subject: =?UTF-8?q?+=20=E6=AE=8B=E5=BD=B1=E7=89=B9=E6=95=88?=
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---
 Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs | 124 +++++++++++++++++++++
 1 file changed, 124 insertions(+)
 create mode 100644 Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs

(limited to 'Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs')

diff --git a/Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs b/Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs
new file mode 100644
index 00000000..65a36d9d
--- /dev/null
+++ b/Assets/Scripts/Effects/ShurikenBakedMeshEmitter.cs
@@ -0,0 +1,124 @@
+using UnityEngine;
+using System.Collections;
+
+public class ShurikenBakedMeshEmitter : MonoBehaviour
+{
+    [Tooltip("パーティクルで使用したいメッシュ")]
+    public SkinnedMeshRenderer skin;
+    //使用するメッシュの現在の形を保存
+    Mesh baked;
+    //再生に使用するパーティクルシステム
+    ParticleSystem particle;
+    ParticleSystemRenderer render;
+    [Tooltip("パーティクルの再生/停止")]
+    public bool emit;
+    [Tooltip("パーティクルを放出する間隔（秒）")]
+    public float coolDown = 0.5f;
+    //現在の待機時間
+    float interval = 0;
+
+    // Use this for initialization
+    void Start()
+    {
+        //元となるメッシュが指定されていなければ本スクリプトを停止
+        if (!skin)
+            this.enabled = false;
+        //使用するパーティクルシステムへのアクセス
+        particle = GetComponent<ParticleSystem>();
+        render = GetComponent<ParticleSystemRenderer>();
+    }
+
+    // Update is called once per frame
+    void Update()
+    {
+        //emitが[true]なら...
+        if (emit)
+        {
+            //待機時間の計算
+            interval -= Time.deltaTime;
+            //必要分の待機時間が経過したなら...
+            if (interval < 0)
+            {
+                //シーンに新たなGameObjectを再生（本GameObjectのコピー）
+                GameObject newEmitter = Instantiate(gameObject, transform.position, transform.rotation) as GameObject;
+                //再生したGameObjectにEmitMesh()を指示
+                newEmitter.GetComponent<ShurikenBakedMeshEmitter>().EmitMesh();
+                //待機時間のリセット
+                interval = coolDown;
+            }
+            //emitが[false]なら...
+        }
+        else
+        {
+            //待機時間のリセット
+            interval = coolDown;
+        }
+    }
+
+    //外部からのアクセスでパーティクルの再生をさせる
+    public void EmitMesh()
+    {
+        //Update ()させない為に[false]
+        emit = false;
+        //メッシュの型をリセット
+        baked = new Mesh();
+        //使用するメッシュの現在の形を保存
+        skin.BakeMesh(baked);
+
+        //自身のパーティクルシステムへのアクセス
+        particle = GetComponent<ParticleSystem>();
+        render = GetComponent<ParticleSystemRenderer>();
+
+        Mesh mainMesh = baked;
+        Mesh meshToCopy = new Mesh();
+        meshToCopy.vertices = mainMesh.vertices;
+        meshToCopy.triangles = mainMesh.triangles;
+        meshToCopy.normals = mainMesh.normals;
+        meshToCopy.uv = mainMesh.uv;
+        int amount = 8;
+        Matrix4x4[] matrix = new Matrix4x4[amount];
+        for (int i = 0; i < amount; i++)
+        {
+            matrix[i].SetTRS(new Vector3(i * 10, 0, 0), Quaternion.Euler(new Vector3(Random.Range(-5, 5), Random.Range(0, 360), Random.Range(-5, 5))), Vector3.one);
+        }
+
+        CombineInstance[] ci = new CombineInstance[amount];
+        for (int i = 0; i < amount; i++)
+        {
+            ci[i] = new CombineInstance();
+            ci[i].mesh = meshToCopy;
+            ci[i].transform = matrix[i];
+        }
+
+        Mesh batchedMesh = gameObject.AddComponent<MeshFilter>().mesh = new Mesh();
+        batchedMesh.CombineMeshes(ci);
+
+        int[] mainSubTri;
+        int[] newSubTri;
+        batchedMesh.subMeshCount = mainMesh.subMeshCount;
+
+        for (int i = 0; i < mainMesh.subMeshCount; i++)
+        {
+            mainSubTri = mainMesh.GetTriangles(i);
+
+            newSubTri = new int[mainSubTri.Length * amount];
+
+            for (int ii = 0; ii < amount; ii++)
+            {
+                for (int iii = 0; iii < mainSubTri.Length; iii++)
+                {
+                    newSubTri[(ii * mainSubTri.Length) + iii] = mainSubTri[iii] + (ii * mainMesh.vertexCount);
+                }
+            }
+            batchedMesh.SetTriangles(newSubTri, i);
+        }
+
+
+        //パーティクルシステムで使用するメッシュを指定
+        render.mesh = meshToCopy;
+        //パーティクルの再生
+        particle.Play();
+        //本GameObjectの破棄の指示
+        Destroy(gameObject, particle.duration);
+    }
+}
\ No newline at end of file
-- 
cgit v1.1-26-g67d0