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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using UnityEditor;
using UnityEngine;
namespace MeshUtility
{
[CustomPropertyDrawer(typeof(BoneMeshEraser.EraseBone))]
public class EraseBoneDrawer : PropertyDrawer
{
public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
//EditorGUI.BeginProperty(position, label, property);
var leftWidth = 0.6f;
var rightWidth = 1.0f - leftWidth;
var leftSide = new Rect(position.x, position.y, position.width * leftWidth, position.height);
var rightSide = new Rect(position.width * leftWidth, position.y, position.width * rightWidth, position.height);
{
EditorGUI.PropertyField(leftSide, property.FindPropertyRelative("Bone"), new GUIContent("", ""));
EditorGUI.PropertyField(rightSide, property.FindPropertyRelative("Erase"));
}
//EditorGUI.EndProperty();
}
public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
{
var height = base.GetPropertyHeight(property, label);
return height;
}
}
public class BoneMeshEraserWizard : ScriptableWizard
{
const string ASSET_SUFFIX = ".asset";
[SerializeField]
SkinnedMeshRenderer m_skinnedMesh;
[SerializeField]
Animator m_animator;
[SerializeField]
Transform EraseRoot;
[SerializeField]
BoneMeshEraser.EraseBone[] m_eraseBones;
[MenuItem(MeshUtility.MENU_PARENT + "BoneMeshEraser Wizard", priority = 4)]
static void CreateWizard()
{
ScriptableWizard.DisplayWizard<BoneMeshEraserWizard>("BoneMeshEraser", "Erase triangles by bone", "Erase");
}
private void OnEnable()
{
var root = Selection.activeGameObject;
if (root != null)
{
m_animator = root.GetComponent<Animator>();
m_skinnedMesh = root.GetComponent<SkinnedMeshRenderer>();
OnValidate();
}
}
void OnValidate()
{
//Debug.Log("OnValidate");
if (m_skinnedMesh == null)
{
m_eraseBones = new BoneMeshEraser.EraseBone[] { };
return;
}
if (EraseRoot == null)
{
if (m_animator != null)
{
EraseRoot = m_animator.GetBoneTransform(HumanBodyBones.Head);
//Debug.LogFormat("head: {0}", EraseRoot);
}
}
m_eraseBones = m_skinnedMesh.bones.Select(x =>
{
var eb = new BoneMeshEraser.EraseBone
{
Bone = x,
};
if (EraseRoot != null)
{
// 首の子孫を消去
if (eb.Bone.Ancestor().Any(y => y == EraseRoot))
{
//Debug.LogFormat("erase {0}", x);
eb.Erase = true;
}
}
return eb;
})
.ToArray();
}
void OnWizardUpdate()
{
helpString = "select target skinnedMesh and animator";
}
static int IndexOf(Transform[] list, Transform target)
{
for (int i = 0; i < list.Length; ++i)
{
if (list[i] == target)
{
return i;
}
}
return -1;
}
SkinnedMeshRenderer _Erase(GameObject go)
{
if (go == null)
{
Debug.LogWarning("select root object in hierarchy");
return null;
}
if (m_skinnedMesh == null)
{
Debug.LogWarning("no skinnedmesh");
return null;
}
var bones = m_skinnedMesh.bones;
var eraseBones = m_eraseBones
.Where(x => x.Erase)
.Select(x => Array.IndexOf(bones, x.Bone))
.ToArray();
var meshNode = new GameObject("BoneMeshEraser");
meshNode.transform.SetParent(go.transform, false);
var erased = meshNode.AddComponent<SkinnedMeshRenderer>();
erased.sharedMesh = BoneMeshEraser.CreateErasedMesh(m_skinnedMesh.sharedMesh, eraseBones);
erased.sharedMaterials = m_skinnedMesh.sharedMaterials;
erased.bones = m_skinnedMesh.bones;
return erased;
}
void Erase()
{
var go = Selection.activeGameObject;
var renderer = _Erase(go);
if (renderer == null)
{
return;
}
// save mesh to Assets
var assetPath = string.Format("{0}{1}", go.name, ASSET_SUFFIX);
var prefab = MeshUtility.GetPrefab(go);
if (prefab != null)
{
var prefabPath = AssetDatabase.GetAssetPath(prefab);
assetPath = string.Format("{0}/{1}{2}",
Path.GetDirectoryName(prefabPath),
Path.GetFileNameWithoutExtension(prefabPath),
ASSET_SUFFIX
);
}
Debug.LogFormat("CreateAsset: {0}", assetPath);
AssetDatabase.CreateAsset(renderer.sharedMesh, assetPath);
}
void OnWizardCreate()
{
//Debug.Log("OnWizardCreate");
Erase();
// close
}
void OnWizardOtherButton()
{
//Debug.Log("OnWizardOtherButton");
Erase();
}
}
}
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