public override void OnInspectorGUI()
{
GUIStyle bold_wrap = EditorStyles.boldLabel;
bold_wrap.wordWrap = true;
GUILayout.Label("Navmesh Preprocessor for HTC Vive Locomotion", bold_wrap);
GUILayout.Label("Adrian Biagioli 2017", EditorStyles.miniLabel);
GUILayout.Label("Before Using", bold_wrap);
GUIStyle wrap = EditorStyles.label;
wrap.wordWrap = true;
GUILayout.Label(
"Make sure you bake a Navigation Mesh (NavMesh) in Unity before continuing (Window > Navigation). When you " +
"are done, click \"Update Navmesh Data\" below. This will update the graphic of the playable area " +
"that the player will see in-game.\n",
wrap);
VRNavMesh mesh = (VRNavMesh)target;
serializedObject.Update();
// Area Mask //
string[] areaNames = GameObjectUtility.GetNavMeshAreaNames();
int[] area_index = new int[areaNames.Length];
int temp_mask = 0;
for (int x = 0; x < areaNames.Length; x++)
{
area_index[x] = GameObjectUtility.GetNavMeshAreaFromName(areaNames[x]);
temp_mask |= ((p_area.intValue >> area_index[x]) & 1) << x;
}
EditorGUI.BeginChangeCheck();
temp_mask = EditorGUILayout.MaskField("Area Mask", temp_mask, areaNames);
if (EditorGUI.EndChangeCheck())
{
p_area.intValue = 0;
for (int x = 0; x < areaNames.Length; x++)
{
p_area.intValue |= (((temp_mask >> x) & 1) == 1 ? 0 : 1) << area_index[x];
}
p_area.intValue = ~p_area.intValue;
}
serializedObject.ApplyModifiedProperties();
// Sanity check for Null properties //
bool HasMesh = (mesh.SelectableMesh != null && mesh.SelectableMesh.vertexCount != 0) || (mesh.SelectableMeshBorder != null && mesh.SelectableMeshBorder.Length != 0);
// Fixes below error message popping up with prefabs. Kind of hacky but gets the job done
bool isPrefab = EditorUtility.IsPersistent(target);
if (isPrefab && mesh.SelectableMesh == null)
{
mesh.SelectableMesh = new Mesh();
}
bool MeshNull = mesh.SelectableMesh == null;
bool BorderNull = mesh.SelectableMeshBorder == null;
if (MeshNull || BorderNull)
{
string str = "Internal Error: ";
if (MeshNull)
{
str += "Selectable Mesh == null. ";
}
if (BorderNull)
{
str += "Border point array == null. ";
}
str += "This may lead to strange behavior or serialization. Try updating the mesh or delete and recreate the Navmesh object. ";
str += "If you are able to consistently get a Vive Nav Mesh object into this state, please submit a bug report.";
EditorGUILayout.HelpBox(str, MessageType.Error);
}
// Update / Clear Navmesh Data //
if (GUILayout.Button("Update Navmesh Data"))
{
Undo.RecordObject(mesh, "Update Navmesh Data");
NavMeshTriangulation tri = NavMesh.CalculateTriangulation();
Vector3[] verts = tri.vertices;
int[] tris = tri.indices;
int[] areas = tri.areas;
int vert_size = verts.Length;
int tri_size = tris.Length;
RemoveMeshDuplicates(verts, tris, out vert_size, 0.01f);
DewarpMesh(verts, mesh.DewarpingMethod, mesh.SampleRadius);
CullNavmeshTriangulation(verts, tris, areas, p_area.intValue, mesh.IgnoreSlopedSurfaces, ref vert_size, ref tri_size);
Mesh m = ConvertNavmeshToMesh(verts, tris, vert_size, tri_size);
// Can't use SerializedProperties here because BorderPointSet doesn't derive from UnityEngine.Object
mesh.SelectableMeshBorder = FindBorderEdges(m);
serializedObject.Update();
p_mesh.objectReferenceValue = m;
serializedObject.ApplyModifiedPropertiesWithoutUndo();
mesh.SelectableMesh = mesh.SelectableMesh; // Make sure that setter is called
}
GUI.enabled = HasMesh;
if (GUILayout.Button("Clear Navmesh Data"))
{
Undo.RecordObject(mesh, "Clear Navmesh Data");
// Note: Unity does not serialize "null" correctly so we set everything to empty objects
Mesh m = new Mesh();
serializedObject.Update();
p_mesh.objectReferenceValue = m;
serializedObject.ApplyModifiedPropertiesWithoutUndo();
mesh.SelectableMesh = mesh.SelectableMesh; // Make sure setter is called
mesh.SelectableMeshBorder = new BorderPointSet[0];
}
GUI.enabled = true;
GUILayout.Label(HasMesh ? "Status: NavMesh Loaded" : "Status: No NavMesh Loaded");
// Render Settings //
EditorGUILayout.LabelField("Render Settings", EditorStyles.boldLabel);
EditorGUI.BeginChangeCheck();
EditorGUILayout.PropertyField(p_material);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(mesh, "Change Ground Material");
serializedObject.ApplyModifiedPropertiesWithoutUndo();
mesh.GroundMaterial = new Material((Material)p_material.objectReferenceValue); // Reload material
}
EditorGUILayout.PropertyField(p_alpha);
serializedObject.ApplyModifiedProperties();
// Raycast Settings //
EditorGUILayout.LabelField("Raycast Settings", EditorStyles.boldLabel);
int temp_layer_mask = p_layer_mask.intValue;
bool temp_ignore_layer_mask = p_ignore_layer_mask.boolValue;
EditorGUI.BeginChangeCheck();
temp_layer_mask = LayerMaskField("Layer Mask", temp_layer_mask);
if (EditorGUI.EndChangeCheck())
{
p_layer_mask.intValue = temp_layer_mask;
}
serializedObject.ApplyModifiedProperties();
EditorGUI.BeginChangeCheck();
temp_ignore_layer_mask = EditorGUILayout.Toggle("Ignore Layer Mask", temp_ignore_layer_mask);
if (EditorGUI.EndChangeCheck())
{
p_ignore_layer_mask.boolValue = temp_ignore_layer_mask;
}
serializedObject.ApplyModifiedProperties();
QueryTriggerInteraction temp_query_trigger_interaction = (QueryTriggerInteraction)p_query_trigger_interaction.intValue;
EditorGUI.BeginChangeCheck();
temp_query_trigger_interaction = (QueryTriggerInteraction)EditorGUILayout.EnumPopup("Query Trigger Interaction", (QueryTriggerInteraction)temp_query_trigger_interaction);
if (EditorGUI.EndChangeCheck())
{
p_query_trigger_interaction.intValue = (int)temp_query_trigger_interaction;
}
serializedObject.ApplyModifiedProperties();
// Navmesh Settings //
EditorGUILayout.LabelField("Navmesh Settings", EditorStyles.boldLabel);
GUILayout.Label(
"Make sure the sample radius below is equal to your Navmesh Voxel Size (see Advanced > Voxel Size " +
"in the navigation window). Increase this if the selection disk is not appearing.",
wrap);
EditorGUILayout.PropertyField(p_sample_radius);
EditorGUILayout.PropertyField(p_ignore_sloped_surfaces);
EditorGUILayout.PropertyField(p_dewarp_method);
serializedObject.ApplyModifiedProperties();
}
// Sample a bunch of points along a parabolic curve until you hit gnd. At that point, cut off the parabola
// p0: starting point of parabola
// v0: initial parabola velocity
// a: initial acceleration
// dist: distance between sample points
// points: number of sample points
// gnd: height of the ground, in meters above y=0
// outPts: List that will be populated by new points
// normal: normal of hit point
/// <summary>
///
/// </summary>
/// <param name="p0">Origin point</param>
/// <param name="v0">Initial velocity</param>
/// <param name="a">Initial acceleration</param>
/// <param name="dist">Distance between points</param>
/// <param name="points">Number of points</param>
/// <param name="nav">Navigation surface</param>
/// <param name="outPts"></param>
/// <param name="normal"></param>
/// <returns></returns>
private static bool CalculateParabolicCurve(Vector3 p0, Vector3 v0, Vector3 a, float dist, int points, VRNavMesh nav, List <Vector3> outPts, out Vector3 normal)
{
outPts.Clear();
outPts.Add(p0);
Vector3 last = p0;
float t = 0;
for (int i = 0; i < points; i++)
{
t += dist / ParabolicCurveDeriv(v0, a, t).magnitude;
Vector3 next = ParabolicCurve(p0, v0, a, t);
Vector3 castHit;
Vector3 norm;
bool endOnNavmesh;
bool cast = nav.Linecast(last, next, out endOnNavmesh, out castHit, out norm);
if (cast)
{
outPts.Add(castHit);
normal = norm;
return(endOnNavmesh);
}
else
{
outPts.Add(next);
}
last = next;
}
normal = Vector3.up;
return(false);
}