public static GameObject Create_Model_Prefab(string prefabName, Stream obj_file, ModelMat_Resolver_Delegate material_resolver, Model_Prefab_Transform[] transforms = null)
{
if (model_prefab_cache.ContainsKey(prefabName))
{
return(model_prefab_cache[prefabName]);
}
var factory = new ObjLoaderFactory();
IObjLoader loader;
if (material_resolver != null)
{
loader = factory.Create(new MaterialResourceProvider(material_resolver));
}
else
{
loader = factory.Create();
}
var mdl = loader.Load(obj_file);
var matBuilder = new MaterialBuilder(material_resolver);
var prefab = new GameObject(prefabName);
prefab.SetActive(false);
prefab.AddComponent <ModelData>();
prefab.AddComponent <Rigidbody>();
var data = new ModelData_Header();
data_cache.Add(prefabName, data);
foreach (var group in mdl.Groups)
{
var gType = MdlGroupType.MESH;
var Name = group.Name;
foreach (var kvp in RESERVED_GROUP_PREFIXES)
{
var reg = kvp.Key;
var match = reg.Match(Name);
if (!match.Success)
{
continue;
}
if (match.Groups.Count <= 1)
{
continue;
}
//for (int i = 0; i < match.Groups.Count; i++) PLog.Info(" - {0}", match.Groups[i].Value);
Name = match.Groups[1].Value.TrimStart(new char[] { '_' });
gType = kvp.Value;
break;
}
//PLog.Info("- Group: \"{0}\" Type: {1}", gName, Enum.GetName(typeof(MdlGroupType), gType));
var gObj = new GameObject(group.Name);
var builder = new MeshBuilder(mdl);
var materials = new UnityEngine.Material[0];
foreach (SubMesh mesh in group.Meshes)
{
builder.Start_Sub_Mesh();
foreach (var face in mesh.Faces)
{
if (face.Count < 3)
{
continue;
}
else if (face.Count == 3)
{
builder.Push_Tri(face[0], face[1], face[2], transforms);
}
else if (face.Count == 4)
{
builder.Push_Tri(face[0], face[1], face[2], transforms);
builder.Push_Tri(face[0], face[2], face[3], transforms);
}
}
if (gType == MdlGroupType.ATTACHMENT_POS || gType == MdlGroupType.PHYS)
{
continue;
}
if (mesh.Material != null)
{
//PLog.Info("- Material: {0}", mesh.Material.Name);
materials.AddToArray(matBuilder.Create(mesh.Material));
}
}
gObj.transform.SetParent(prefab.transform, false);
gObj.transform.localPosition = Vector3.zero;
gObj.transform.localRotation = Quaternion.identity;
if (gType == MdlGroupType.ATTACHMENT_POS)
{
// Attachment positions should ideally contain only a single vertex. But if they contain more we should not be stupid and ignore them.
// So let's just find the center of all points provided.
gObj.transform.localPosition = builder.Calculate_Center_Point(group);
data.Push_Attachment_Spot(group.Name, Name);
}
else
{
var filter = gObj.AddComponent <MeshFilter>();
filter.mesh = builder.Compile();
var renderer = gObj.AddComponent <MeshRenderer>();// All game objects need a MeshRenderer for that mesh to even give the object a size/bounds within the world!
if (gType == MdlGroupType.PHYS || materials.Length <= 0)
{
renderer.enabled = false;
}
else
{
//PLog.Info("Creating material for: {0}", group.Material.Name);
renderer.enabled = true;
renderer.materials = materials;
}
var bx = gObj.AddComponent <BoxCollider>();
switch (gType)
{
case MdlGroupType.MESH:
data.Push_Mesh(group.Name, Name);
break;
case MdlGroupType.STATE:
data.Push_State(group.Name, Name);
break;
case MdlGroupType.PHYS:
data.Push_Phys(group.Name, Name);
break;
default:
throw new NotImplementedException("Unhandled " + nameof(MdlGroupType) + " value: " + gType);
}
}
}
if (model_prefab_cache.ContainsKey(prefabName))
{
model_prefab_cache.Add(prefabName, prefab);
}
else
{
model_prefab_cache[prefabName] = prefab;
}
return(prefab);
}