/// <summary>
/// Cut the specified victim, blade_plane and capMaterial.
/// （指定された「victim」をカットする。ブレード（平面）とマテリアルから切断を実行する）
/// </summary>
/// <param name="victim">Victim.</param>
/// <param name="blade_plane">Blade plane.</param>
public CutterMesh[] Cut(CutterObject victim, CutterPlane blade)
{
// 対象のメッシュを取得
MeshCutData data = new MeshCutData(victim.CutterMesh, blade);
// ここでの「3」はトライアングル
bool[] sides = new bool[3];
int[] indices;
int p1, p2, p3;
// go throught the submeshes
// サブメッシュの数だけループ
for (int sub = 0; sub < victim.SubMeshCount; sub++)
{
// サブメッシュのインデックス数を取得
indices = victim.CutterMesh.GetIndices(sub);
// List<List<int>>型のリスト。サブメッシュ一つ分のインデックスリスト
data.LeftSide.SubIndices.Add(new List <int>()); // 左
data.RightSide.SubIndices.Add(new List <int>()); // 右
// サブメッシュのインデックス数分ループ
for (int i = 0; i < indices.Length; i += 3)
{
// p1 - p3のインデックスを取得。つまりトライアングル
p1 = indices[i + 0];
p2 = indices[i + 1];
p3 = indices[i + 2];
// それぞれ評価中のメッシュの頂点が、冒頭で定義された平面の左右どちらにあるかを評価。
// `GetSide` メソッドによりboolを得る。
sides[0] = blade.GetSide(data.VictimMesh.Vertices[p1]);
sides[1] = blade.GetSide(data.VictimMesh.Vertices[p2]);
sides[2] = blade.GetSide(data.VictimMesh.Vertices[p3]);
// whole triangle
// 頂点０と頂点１および頂点２がどちらも同じ側にある場合はカットしない
if (sides[0] == sides[1] && sides[0] == sides[2])
{
if (sides[0])
{ // left side
// GetSideメソッドでポジティブ（true）の場合は左側にあり
data.LeftSide.AddTriangle(p1, p2, p3, sub);
}
else
{
data.RightSide.AddTriangle(p1, p2, p3, sub);
}
}
else
{ // cut the triangle
// そうではなく、どちらかの点が平面の反対側にある場合はカットを実行する
CutFace(sub, sides, p1, p2, p3, data);
}
}
}
// Check separating verticies.
if (data.LeftSide.Vertices.Count == 0 || data.RightSide.Vertices.Count == 0)
{
Debug.Log("No need cutting, because all verticies are in one side.");
return(null);
}
data.LeftSide.SubIndices.Add(new List <int>());
data.RightSide.SubIndices.Add(new List <int>());
// カット開始
Capping(data);
// 左側のメッシュを生成
// MeshCutSideクラスのメンバから各値をコピー
CutterMesh leftHalfMesh = new CutterMesh
{
Vertices = data.LeftSide.Vertices.ToArray(),
Triangles = data.LeftSide.Triangles.ToArray(),
Normals = data.LeftSide.Normals.ToArray(),
UVs = data.LeftSide.UVs.ToArray(),
BoneWeights = data.LeftSide.BoneWeights.ToArray(),
};
int[][] leftSubIndices = new int[data.LeftSide.SubIndices.Count][];
for (int i = 0; i < data.LeftSide.SubIndices.Count; i++)
{
leftSubIndices[i] = data.LeftSide.SubIndices[i].ToArray();
}
leftHalfMesh.SetIndices(leftSubIndices);
// 右側のメッシュも同様に生成
CutterMesh rightHalfMesh = new CutterMesh
{
Vertices = data.RightSide.Vertices.ToArray(),
Triangles = data.RightSide.Triangles.ToArray(),
Normals = data.RightSide.Normals.ToArray(),
UVs = data.RightSide.UVs.ToArray(),
BoneWeights = data.RightSide.BoneWeights.ToArray(),
};
int[][] rightSubIndices = new int[data.RightSide.SubIndices.Count][];
for (int i = 0; i < data.RightSide.SubIndices.Count; i++)
{
rightSubIndices[i] = data.RightSide.SubIndices[i].ToArray();
}
rightHalfMesh.SetIndices(rightSubIndices);
Debug.Log("cutter finish");
// 左右のGameObjectの配列を返す
return(new CutterMesh[] { leftHalfMesh, rightHalfMesh });
}
/// <summary>
/// カットされたメッシュ情報を元にオブジェクトを生成する
/// </summary>
private void CreateCuttedObjects(CutterInfo info)
{
CutterTarget target = info.CutterTarget;
if (target == null)
{
return;
}
// 設定されているマテリアル配列を取得
Material[] mats = GetMaterials(target.GameObject);
// カット面分増やしたマテリアル配列を準備
Material[] newMats = new Material[mats.Length + 1];
// 既存のものを新しい配列にコピー
mats.CopyTo(newMats, 0);
// 新しいマテリアル配列の最後に、カット面用マテリアルを追加
newMats[mats.Length] = (target.CutMaterial != null) ? target.CutMaterial : _cutDefaultMaterial;
// 生成したマテリアルリストを再設定
mats = newMats;
CutterObject cutterObject = info.CutterObject;
CutterMesh[] cuttedMeshes = info.CutterMeshes;
GameObject[] cuttedObject = new GameObject[cuttedMeshes.Length];
// 生成されたメッシュ分、オブジェクトを生成する
for (int i = 0; i < cuttedMeshes.Length; i++)
{
#region ### Create new object ###
GameObject newObj = new GameObject("[Cutterd]" + target.Name + i);
newObj.transform.position = target.transform.position;
newObj.transform.rotation = target.transform.rotation;
newObj.transform.localScale = target.transform.localScale;
#endregion ### Create new object ###
#region ### Create new mesh ###
Mesh mesh = new Mesh();
mesh.name = "Split Mesh";
mesh.vertices = cuttedMeshes[i].Vertices;
mesh.triangles = cuttedMeshes[i].Triangles;
mesh.normals = cuttedMeshes[i].Normals;
mesh.uv = cuttedMeshes[i].UVs;
mesh.subMeshCount = cuttedMeshes[i].SubMeshCount;
for (int j = 0; j < cuttedMeshes[i].SubMeshCount; j++)
{
mesh.SetIndices(cuttedMeshes[i].GetIndices(j), MeshTopology.Triangles, j);
}
#endregion ### Create new mesh ###
GameObject obj;
// アニメーションが必要な場合はボーンのセットアップを行う
if (_needAnimation)
{
SkinnedMeshRenderer oriRenderer = target.GameObject.GetComponent <SkinnedMeshRenderer>();
Transform newRootBone = Instantiate(oriRenderer.rootBone.gameObject).transform;
newRootBone.name = newRootBone.name.Replace("(Clone)", "");
Transform[] newBones = new Transform[oriRenderer.bones.Length];
for (int j = 0; j < oriRenderer.bones.Length; j++)
{
Transform bone = oriRenderer.bones[j];
Transform newBone = SearchBone(bone.name, newRootBone);
newBones[j] = newBone;
}
Animator oriAnim = target.GetComponent <Animator>();
AnimatorStateInfo stateInfo = oriAnim.GetCurrentAnimatorStateInfo(0);
newRootBone.SetParent(newObj.transform);
Animator anim = newObj.AddComponent <Animator>();
anim.runtimeAnimatorController = oriAnim.runtimeAnimatorController;
anim.avatar = target.GetComponent <Animator>().avatar;
anim.Play(stateInfo.fullPathHash, 0, stateInfo.normalizedTime);
mesh.bindposes = cutterObject.Bindposes;
mesh.boneWeights = cuttedMeshes[i].BoneWeights;
obj = new GameObject("Split Object", new[] {
typeof(SkinnedMeshRenderer)
});
obj.transform.position = target.MeshTransform.position;
obj.transform.rotation = target.MeshTransform.rotation;
SkinnedMeshRenderer renderer = obj.GetComponent <SkinnedMeshRenderer>();
renderer.sharedMesh = mesh;
renderer.materials = mats;
renderer.bones = newBones;
renderer.rootBone = newRootBone;
}
else
{
obj = new GameObject("Split Object " + i, new[] {
typeof(MeshFilter),
typeof(MeshRenderer),
typeof(Rigidbody),
typeof(MeshCollider),
typeof(CutterTarget),
});
obj.transform.position = target.MeshTransform.position;
obj.transform.rotation = target.MeshTransform.rotation;
obj.transform.localScale = target.MeshTransform.lossyScale;
obj.GetComponent <MeshCollider>().sharedMesh = mesh;
obj.GetComponent <MeshCollider>().convex = true;
obj.GetComponent <MeshCollider>().material = target.GetComponent <Collider>().material;
obj.GetComponent <MeshFilter>().mesh = mesh;
obj.GetComponent <MeshRenderer>().materials = mats;
obj.GetComponent <CutterTarget>().CutMaterial = target.CutMaterial;
obj.GetComponent <Rigidbody>().constraints = target.Rigidbody.constraints;
}
cuttedObject[i] = obj;
obj.transform.SetParent(newObj.transform);
if (cutterObject.NeedsScaleAdjust)
{
obj.transform.localScale = target.transform != target.MeshTransform ? target.MeshTransform.localScale : Vector3.one;
}
cutAnim.Anim(target, obj.GetComponent <CutterTarget>());
}
// Notify end of cutting.
target.Cutted(cuttedObject);
if (_autoDestroyTarget)
{
// Destroy target object.
target.transform.localScale = Vector3.zero;
target.gameObject.SetActive(false);
//Destroy(target.gameObject);
}
if (OnCutted != null)
{
OnCutted.Invoke(cuttedObject, info.CutterPlane);
}
if (info.CutterCallback != null)
{
info.CutterCallback.Invoke(true, cuttedObject, info.CutterPlane, info.UserData);
}
}