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GGJ_2019/Assets/Simple Mesh Combine/Scripts C/Editor/SimpleMeshCombineEditor.cs

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/*
Simple Mesh Combine
Copyright Unluck Software
www.chemicalbliss.com
*/
using UnityEngine;
using System;
using System.IO;
using System.Text;
using UnityEditor;
[CustomEditor(typeof(SimpleMeshCombine))]
[System.Serializable]
public class SimpleMeshCombineEditor : Editor {
public Texture titleTexture;
public void ExportMesh(MeshFilter meshFilter, string folder, string filename) {
string path = SaveFile(folder, filename, "obj");
if (path != null) {
StreamWriter sw = new StreamWriter(path);
sw.Write(MeshToString(meshFilter));
sw.Flush();
sw.Close();
AssetDatabase.Refresh();
Debug.Log("Exported OBJ file to folder: " + path);
}
}
public string MeshToString(MeshFilter meshFilter) {
Mesh sMesh = meshFilter.sharedMesh;
StringBuilder stringBuilder = new StringBuilder();
stringBuilder.Append("g ").Append(meshFilter.name).Append("\n");
foreach (Vector3 vert in sMesh.vertices) {
Vector3 tPoint = meshFilter.transform.TransformPoint(vert);
stringBuilder.Append(String.Format("v {0} {1} {2}\n", -tPoint.x, tPoint.y, tPoint.z));
}
stringBuilder.Append("\n");
foreach (Vector3 norm in sMesh.normals) {
Vector3 tDir = meshFilter.transform.TransformDirection(norm);
stringBuilder.Append(String.Format("vn {0} {1} {2}\n", -tDir.x, tDir.y, tDir.z));
}
stringBuilder.Append("\n");
foreach (Vector3 uv in sMesh.uv) {
stringBuilder.Append(String.Format("vt {0} {1}\n", uv.x, uv.y));
}
for (int material = 0; material < sMesh.subMeshCount; material++) {
stringBuilder.Append("\n");
int[] tris = sMesh.GetTriangles(material);
for (int i = 0; i < tris.Length; i += 3) {
stringBuilder.Append(String.Format("f {1}/{1}/{1} {0}/{0}/{0} {2}/{2}/{2}\n", tris[i] + 1, tris[i + 1] + 1, tris[i + 2] + 1));
}
}
return stringBuilder.ToString();
}
public string SaveFile(string folder, string name, string type) {
string newPath = "";
string path = EditorUtility.SaveFilePanel("Select Folder ", folder, name, type);
if (path.Length > 0) {
if (path.Contains("" + Application.dataPath)) {
string s = "" + path + "";
string d = "" + Application.dataPath + "/";
string p = "Assets/" + s.Remove(0, d.Length);
bool cancel = false;
if (cancel) Debug.Log("Canceled");
newPath = p;
} else {
Debug.LogError("Prefab Save Failed: Can't save outside project: " + path);
}
}
return newPath;
}
public override void OnInspectorGUI() {
var target_cs = (SimpleMeshCombine)target;
GUIStyle buttonStyle = new GUIStyle(GUI.skin.button);
GUIStyle buttonStyle2 = new GUIStyle(GUI.skin.button);
buttonStyle.fontStyle = FontStyle.Bold;
buttonStyle.fixedWidth = 150.0f;
buttonStyle.fixedHeight = 35.0f;
buttonStyle.fontSize = 15;
buttonStyle2.fixedWidth = 200.0f;
buttonStyle2.fixedHeight = 20.0f;
buttonStyle2.margin = new RectOffset((int)((Screen.width - 200) * .5f), (int)((Screen.width - 200) * .5f), 0, 0);
buttonStyle.margin = new RectOffset((int)((Screen.width - 150) * .5f), (int)((Screen.width - 150) * .5f), 0, 0);
GUIStyle infoStyle = new GUIStyle(GUI.skin.label);
infoStyle.fontSize = 10;
infoStyle.margin.top = 0;
infoStyle.margin.bottom = 0;
if (!Application.isPlaying) {
GUI.enabled = true;
} else {
GUILayout.Label("Editor can't combine in play-mode", infoStyle);
GUILayout.Label("Use SimpleMeshCombine.CombineMeshes();", infoStyle);
GUI.enabled = false;
}
GUILayout.Space(15.0f);
if (target_cs.combinedGameOjects == null || target_cs.combinedGameOjects.Length == 0) {
if (GUILayout.Button("Combine", buttonStyle)) {
if (target_cs.transform.childCount >= 1) target_cs.CombineMeshes();
}
} else {
if (GUILayout.Button("Release", buttonStyle)) {
target_cs.EnableRenderers(true);
if (target_cs.combined != null) DestroyImmediate(target_cs.combined);
target_cs.combinedGameOjects = null;
target_cs.vCount = 0;
}
}
GUILayout.Space(5.0f);
if (target_cs.combined != null) {
if (!target_cs._canGenerateLightmapUV) {
GUILayout.Label("Warning: Mesh has too high vertex count", EditorStyles.boldLabel);
GUI.enabled = false;
}
if (target_cs.combined.GetComponent<MeshFilter>().sharedMesh.name != "") {
GUI.enabled = false;
} else if (!Application.isPlaying) {
GUI.enabled = true;
}
if (GUILayout.Button("Save Mesh", buttonStyle2)) {
if (target_cs.autoOverwrite != null) {
string apath = AssetDatabase.GetAssetPath(target_cs.autoOverwrite);
if (EditorUtility.DisplayDialog("Replace Asset?",
"Are you sure you want to replace mesh asset:\n" + apath
, "Yes", "No")) {
UnityEngine.Object asset = AssetDatabase.LoadAssetAtPath(apath, (Type)typeof(object));
((Mesh)asset).Clear();
EditorUtility.CopySerialized(target_cs.combined.GetComponent<MeshFilter>().sharedMesh, asset);
AssetDatabase.SaveAssets();
Debug.Log("Saved mesh asset: " + apath);
}
return;
}
string path = SaveFile("Assets/", target_cs.transform.name + " [SMC Asset]", "asset");
if (path != null) {
UnityEngine.Object asset = AssetDatabase.LoadAssetAtPath(path, (Type)typeof(object));
if (asset == null) {
AssetDatabase.CreateAsset(target_cs.combined.GetComponent<MeshFilter>().sharedMesh, path);
} else {
((Mesh)asset).Clear();
EditorUtility.CopySerialized(target_cs.combined.GetComponent<MeshFilter>().sharedMesh, asset);
AssetDatabase.SaveAssets();
}
target_cs.combined.GetComponent<MeshFilter>().sharedMesh = (Mesh)AssetDatabase.LoadAssetAtPath(path, (Type)typeof(object));
target_cs.autoOverwrite = (Mesh)AssetDatabase.LoadAssetAtPath(path, (Type)typeof(object));
Debug.Log("Saved mesh asset: " + path);
}
}
GUILayout.BeginHorizontal();
target_cs.autoOverwrite = (Mesh)EditorGUILayout.ObjectField(target_cs.autoOverwrite, (Type)typeof(Mesh), false);
if (GUILayout.Button("Clear")) {
target_cs.autoOverwrite = null;
}
GUILayout.EndHorizontal();
GUILayout.Space(5.0f);
}
if (!Application.isPlaying) {
GUI.enabled = true;
}
if (target_cs.combined != null) {
if (GUILayout.Button("Export OBJ", buttonStyle2)) {
if (target_cs.combined != null) {
ExportMesh(target_cs.combined.GetComponent<MeshFilter>(), "Assets/", target_cs.transform.name + " [SMC Mesh]" + ".obj");
}
}
GUILayout.Space(15.0f);
string bText = "Create Copy";
if (target_cs.combined.GetComponent<MeshFilter>().sharedMesh.name == "") {
bText = bText + " (Saved mesh)";
GUI.enabled = false;
} else if (!Application.isPlaying) {
GUI.enabled = true;
}
if (GUILayout.Button(bText, buttonStyle2)) {
GameObject newCopy = new GameObject();
GameObject newCopy2 = new GameObject();
newCopy2.transform.parent = newCopy.transform;
newCopy2.transform.localPosition = target_cs.combined.transform.localPosition;
newCopy2.transform.localRotation = target_cs.combined.transform.localRotation;
newCopy.name = target_cs.name + " [SMC Copy]";
newCopy2.name = "Mesh [SMC]";
newCopy.transform.position = target_cs.transform.position;
newCopy.transform.rotation = target_cs.transform.rotation;
MeshFilter mf = newCopy2.AddComponent<MeshFilter>();
newCopy2.AddComponent<MeshRenderer>();
mf.sharedMesh = target_cs.combined.GetComponent<MeshFilter>().sharedMesh;
target_cs.copyTarget = newCopy;
CopyMaterials(newCopy2.transform);
CopyColliders();
Selection.activeTransform = newCopy.transform;
}
GUILayout.Space(5.0f);
if (target_cs.copyTarget == null) {
GUI.enabled = false;
} else if (!Application.isPlaying) {
GUI.enabled = true;
}
if (GUILayout.Button("Copy Colliders", buttonStyle2)) {
CopyColliders();
}
GUILayout.Space(5.0f);
if (GUILayout.Button("Copy Materials", buttonStyle2)) {
CopyMaterials(target_cs.copyTarget.transform.Find("Mesh [SMC]"));
}
GUILayout.Space(15.0f);
if (!Application.isPlaying) {
GUI.enabled = true;
}
target_cs.destroyOldColliders = EditorGUILayout.Toggle("Destroy old colliders", target_cs.destroyOldColliders);
target_cs.keepStructure = EditorGUILayout.Toggle("Keep collider structure", target_cs.keepStructure);
target_cs.copyTarget = (GameObject)EditorGUILayout.ObjectField("Copy to: ", target_cs.copyTarget, typeof(GameObject), true);
}
if (target_cs.combined == null) {
target_cs.generateLightmapUV = EditorGUILayout.Toggle("Create Lightmap UV", target_cs.generateLightmapUV);
target_cs.lightmapScale = EditorGUILayout.FloatField("Lightmap Scale", target_cs.lightmapScale);
target_cs.setStatic = EditorGUILayout.Toggle("Static", target_cs.setStatic);
}
GUILayout.Space(5.0f);
EditorGUILayout.BeginVertical("Box");
if (target_cs.combined != null) {
GUILayout.Label("Combined vertex count: " + target_cs.vCount + " / 65536" + " (" + UncombinedVertex() + ")", infoStyle);
GUILayout.Label("Material count: " + target_cs.combined.GetComponent<Renderer>().sharedMaterials.Length, infoStyle);
} else {
GUILayout.Label("Combined vertex count: " + target_cs.vCount + " / 65536" + " (" + UncombinedVertex() + ")", infoStyle);
GUILayout.Label("Material count: -", infoStyle);
}
GUI.color = Color.white;
EditorGUILayout.EndVertical();
GUIStyle buttonStyle3 = new GUIStyle(GUI.skin.button);
buttonStyle3.fixedWidth = 11.0f;
buttonStyle3.fixedHeight = 14.0f;
buttonStyle3.fontSize = 9;
buttonStyle3.padding = new RectOffset(-2, 0, 0, 0);
EditorGUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
EditorGUILayout.EndHorizontal();
if (GUI.changed) {
EditorUtility.SetDirty(target_cs);
}
}
public int UncombinedVertex(){
int totalMeshes = 0;
int verts = 0;
var target_cs = (SimpleMeshCombine)target;
for (int i = 0; i < target_cs.transform.childCount; i++) {
if (target_cs.combined && target_cs.transform.GetChild(i) != target_cs.combined.transform || !target_cs.combined) {
MeshFilter[] mfs = target_cs.transform.GetChild(i).GetComponentsInChildren<MeshFilter>();
totalMeshes += mfs.Length;
for (int j = 0; j < mfs.Length; j++) {
if (mfs[j].sharedMesh != null) {
verts += mfs[j].sharedMesh.vertexCount;
}
}
}
}
return verts;
}
public void DestroyComponentsExeptColliders(Transform t){
var target_cs = (SimpleMeshCombine)target;
Component[] transforms = t.GetComponentsInChildren(typeof(Transform));
foreach(Transform trans in transforms){
if(!target_cs.keepStructure && trans.transform.parent != t && trans.transform != t && (trans.GetComponent(typeof(Collider)) != null)){
trans.transform.name = ""+ GetParentStructure(t, trans.transform);
trans.transform.parent = t;
}
}
Component[] components = t.GetComponentsInChildren(typeof(Component));
foreach(Component comp in components){
if( !( comp is Collider) && !( comp is Transform) ){
DestroyImmediate(comp);
}
}
}
public string GetParentStructure(Transform root,Transform t){
Transform ct = t;
string s = "";
while(ct !=root ){
s = s.Insert(0, ct.name + " - ");
ct = ct.parent;
}
s = s.Remove(s.Length-3, 3);
return s;
}
public void DestroyEmptyGameObjects(Transform t){
Component[] components = t.GetComponentsInChildren(typeof(Transform));
foreach(Transform comp in components){
if((comp != null) && (comp.childCount == 0 || !CheckChildrenForColliders(comp))){
Collider col = (Collider)comp.GetComponent(typeof(Collider));
if(col == null){
DestroyImmediate(comp.gameObject);
}
}
}
}
public bool CheckChildrenForColliders(Transform t){
Component[] components = t.GetComponentsInChildren(typeof(Collider));
if(components.Length > 0){
return true;
}
return false;
}
public void CopyMaterials(Transform t){
var target_cs = (SimpleMeshCombine)target;
Renderer r = t.GetComponent<Renderer>();
r.sharedMaterials = target_cs.combined.transform.GetComponent<Renderer>().sharedMaterials;
}
public void CopyColliders(){
var target_cs = (SimpleMeshCombine)target;
GameObject clone = (GameObject)Instantiate(target_cs.gameObject, target_cs.copyTarget.transform.position, target_cs.copyTarget.transform.rotation);
if(target_cs.destroyOldColliders){
Transform o = target_cs.copyTarget.transform.Find("Colliders [SMC]");
if(o != null){
DestroyImmediate(o.gameObject);
}
}
clone.transform.name = "Colliders [SMC]";
clone.transform.parent = target_cs.copyTarget.transform;
DestroyComponentsExeptColliders(clone.transform);
DestroyEmptyGameObjects(clone.transform);
}
}