419 lines
20 KiB
C#
419 lines
20 KiB
C#
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using System;
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using UnityEditor;
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using UnityEngine;
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namespace Unity.AI.Navigation.Editor
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{
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[CanEditMultipleObjects]
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[CustomEditor(typeof(NavMeshLink))]
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class NavMeshLinkEditor : UnityEditor.Editor
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{
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SerializedProperty m_AgentTypeID;
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SerializedProperty m_Area;
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SerializedProperty m_IsOverridingCost;
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SerializedProperty m_CostModifier;
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SerializedProperty m_AutoUpdatePosition;
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SerializedProperty m_Bidirectional;
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SerializedProperty m_EndPoint;
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SerializedProperty m_StartPoint;
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SerializedProperty m_EndTransform;
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SerializedProperty m_StartTransform;
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SerializedProperty m_Activated;
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SerializedProperty m_Width;
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static int s_SelectedID;
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static int s_SelectedPoint = -1;
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static Color s_HandleColor = new Color(255f, 167f, 39f, 210f) / 255;
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static Color s_HandleColorDisabled = new Color(255f * 0.75f, 167f * 0.75f, 39f * 0.75f, 100f) / 255;
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void OnEnable()
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{
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m_AgentTypeID = serializedObject.FindProperty("m_AgentTypeID");
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m_Area = serializedObject.FindProperty("m_Area");
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m_IsOverridingCost = serializedObject.FindProperty("m_IsOverridingCost");
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m_CostModifier = serializedObject.FindProperty("m_CostModifier");
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m_AutoUpdatePosition = serializedObject.FindProperty("m_AutoUpdatePosition");
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m_Bidirectional = serializedObject.FindProperty("m_Bidirectional");
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m_EndPoint = serializedObject.FindProperty("m_EndPoint");
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m_StartPoint = serializedObject.FindProperty("m_StartPoint");
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m_EndTransform = serializedObject.FindProperty("m_EndTransform");
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m_StartTransform = serializedObject.FindProperty("m_StartTransform");
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m_Activated = serializedObject.FindProperty("m_Activated");
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m_Width = serializedObject.FindProperty("m_Width");
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s_SelectedID = 0;
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s_SelectedPoint = -1;
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}
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internal static void AlignTransformToEndPoints(NavMeshLink navLink)
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{
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var toWorld = navLink.LocalToWorldUnscaled();
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var allLinksOnGameObject = navLink.gameObject.GetComponents<NavMeshLink>();
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Span<(Vector3 start, Vector3 end)> serializedEndpointsWorld = stackalloc (Vector3, Vector3)[allLinksOnGameObject.Length];
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Span<(Vector3 start, Vector3 end)> worldEndpointsBeforeAlign = stackalloc (Vector3, Vector3)[allLinksOnGameObject.Length];
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var thisLink = -1;
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for (var i = 0; i < allLinksOnGameObject.Length; i++)
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{
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var link = allLinksOnGameObject[i];
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if (link == navLink)
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thisLink = i;
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// Store the world positions of the serialized point values
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serializedEndpointsWorld[i].start = toWorld.MultiplyPoint3x4(link.startPoint);
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serializedEndpointsWorld[i].end = toWorld.MultiplyPoint3x4(link.endPoint);
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// Store the world positions of the used endpoints
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link.GetWorldPositions(out var initialStartPos, out var initialEndPos);
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worldEndpointsBeforeAlign[i].start = initialStartPos;
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worldEndpointsBeforeAlign[i].end = initialEndPos;
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}
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// Use overall world position of target points or transforms to determine midpoint
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var worldStartPt = worldEndpointsBeforeAlign[thisLink].start;
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var worldEndPt = worldEndpointsBeforeAlign[thisLink].end;
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var startToEnd = worldEndPt - worldStartPt;
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var up = navLink.transform.up;
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// Flatten
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var forward = startToEnd - Vector3.Dot(up, startToEnd) * up;
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Undo.RecordObject(navLink.transform, Content.UndoReCenterOrigin);
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var middlePos = (worldEndPt + worldStartPt) * 0.5f;
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var lookTowardsEndAndKeepUp = Quaternion.LookRotation(forward, up);
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navLink.transform.SetPositionAndRotation(middlePos, lookTowardsEndAndKeepUp);
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// Transform points back to local space
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var toNewLocal = navLink.LocalToWorldUnscaled().inverse;
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for (var i = 0; i < allLinksOnGameObject.Length; i++)
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{
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var link = allLinksOnGameObject[i];
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Undo.RecordObject(link, Content.UndoReCenterOrigin);
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var startAtOwnChild = link.startTransform != null && link.startTransform.IsChildOf(link.transform);
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var endAtOwnChild = link.endTransform != null && link.endTransform.IsChildOf(link.transform);
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if (startAtOwnChild)
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Undo.RecordObject(link.startTransform, Content.UndoReCenterOrigin);
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if (endAtOwnChild)
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Undo.RecordObject(link.endTransform, Content.UndoReCenterOrigin);
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using (new DeferredLinkUpdateScope(link))
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{
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link.startPoint = toNewLocal.MultiplyPoint3x4(serializedEndpointsWorld[i].start);
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link.endPoint = toNewLocal.MultiplyPoint3x4(serializedEndpointsWorld[i].end);
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// Ensure transform targets return to world positions, in case they are children of the NavMeshLink object
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if (startAtOwnChild)
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link.startTransform.position = worldEndpointsBeforeAlign[i].start;
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if (endAtOwnChild)
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link.endTransform.position = worldEndpointsBeforeAlign[i].end;
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}
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}
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}
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public override void OnInspectorGUI()
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{
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serializedObject.Update();
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NavMeshComponentsGUIUtility.AgentTypePopup(Content.AgentType, m_AgentTypeID);
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NavMeshComponentsGUIUtility.AreaPopup(Content.AreaType, m_Area);
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EditorGUILayout.PropertyField(m_IsOverridingCost, Content.CostOverrideToggle);
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EditorGUI.BeginDisabled(!m_IsOverridingCost.boolValue);
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EditorGUILayout.PropertyField(m_CostModifier, Content.CostModifier);
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EditorGUI.EndDisabled();
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EditorGUILayout.Space();
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m_StartPoint.isExpanded = EditorGUILayout.Foldout(m_StartPoint.isExpanded, Content.Positions, true);
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if (m_StartPoint.isExpanded)
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{
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EditorGUI.indentLevel++;
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EditorGUILayout.PropertyField(m_StartTransform, Content.StartTransform);
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using (new EditorGUI.DisabledScope(m_StartTransform.objectReferenceValue != null))
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EditorGUILayout.PropertyField(m_StartPoint, Content.StartPoint);
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EditorGUILayout.PropertyField(m_EndTransform, Content.EndTransform);
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using (new EditorGUI.DisabledScope(m_EndTransform.objectReferenceValue != null))
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EditorGUILayout.PropertyField(m_EndPoint, Content.EndPoint);
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var buttonRect = EditorGUILayout.GetControlRect();
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buttonRect = EditorGUI.IndentedRect(buttonRect);
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buttonRect.width -= EditorGUIUtility.standardVerticalSpacing;
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buttonRect.width *= 0.5f;
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if (GUI.Button(buttonRect, Content.ReverseDirectionButton))
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{
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Undo.RecordObjects(targets, Content.UndoReverseDirection);
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foreach (var nml in targets)
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ReverseDirection((NavMeshLink)nml);
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SceneView.RepaintAll();
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}
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buttonRect.x += buttonRect.width + EditorGUIUtility.standardVerticalSpacing;
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if (GUI.Button(buttonRect, Content.ReCenterButton))
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{
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Undo.RecordObjects(targets, Content.UndoReCenterOrigin);
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foreach (var nml in targets)
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AlignTransformToEndPoints((NavMeshLink)nml);
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SceneView.RepaintAll();
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}
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EditorGUI.indentLevel--;
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}
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EditorGUILayout.Space();
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EditorGUILayout.PropertyField(m_AutoUpdatePosition, Content.AutoUpdatePositions);
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EditorGUILayout.PropertyField(m_Bidirectional, Content.Bidirectional);
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EditorGUILayout.PropertyField(m_Width, Content.Width);
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EditorGUILayout.PropertyField(m_Activated, Content.Activated);
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serializedObject.ApplyModifiedProperties();
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EditorGUILayout.Space();
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}
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internal static void ReverseDirection(NavMeshLink navLink)
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{
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using (new DeferredLinkUpdateScope(navLink))
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{
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(navLink.startPoint, navLink.endPoint) = (navLink.endPoint, navLink.startPoint);
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(navLink.startTransform, navLink.endTransform) = (navLink.endTransform, navLink.startTransform);
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}
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}
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internal static Vector3 GetLocalDirectionRight(NavMeshLink navLink, out Vector3 localStartPosition, out Vector3 localEndPosition)
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{
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navLink.GetLocalPositions(out localStartPosition, out localEndPosition);
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var dir = localEndPosition - localStartPosition;
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return new Vector3(dir.z, 0.0f, -dir.x).normalized;
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}
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static void DrawLink(NavMeshLink navLink)
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{
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var right = GetLocalDirectionRight(navLink, out var startPos, out var endPos);
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var rad = navLink.width * 0.5f;
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var edgeRadius = right * rad;
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ReadOnlySpan<Vector3> corners = stackalloc[]
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{
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startPos - edgeRadius,
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startPos + edgeRadius,
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endPos + edgeRadius,
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endPos - edgeRadius
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};
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Gizmos.DrawLineStrip(corners, true);
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}
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[DrawGizmo(GizmoType.InSelectionHierarchy | GizmoType.Active | GizmoType.Pickable)]
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static void RenderBoxGizmo(NavMeshLink navLink, GizmoType gizmoType)
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{
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if (!EditorApplication.isPlaying && navLink.isActiveAndEnabled && navLink.HaveTransformsChanged())
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navLink.UpdateLink();
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var color = s_HandleColor;
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if (!navLink.enabled)
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color = s_HandleColorDisabled;
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var oldColor = Gizmos.color;
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var oldMatrix = Gizmos.matrix;
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Gizmos.matrix = navLink.LocalToWorldUnscaled();
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Gizmos.color = color;
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DrawLink(navLink);
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Gizmos.matrix = oldMatrix;
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Gizmos.color = oldColor;
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Gizmos.DrawIcon(navLink.transform.position, "NavMeshLink Icon", true);
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}
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[DrawGizmo(GizmoType.NotInSelectionHierarchy | GizmoType.Pickable)]
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static void RenderBoxGizmoNotSelected(NavMeshLink navLink, GizmoType gizmoType)
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{
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if (!EditorApplication.isPlaying && navLink.isActiveAndEnabled && navLink.HaveTransformsChanged())
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navLink.UpdateLink();
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var color = s_HandleColor;
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if (!navLink.enabled)
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color = s_HandleColorDisabled;
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var oldColor = Gizmos.color;
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var oldMatrix = Gizmos.matrix;
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Gizmos.matrix = navLink.LocalToWorldUnscaled();
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Gizmos.color = color;
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DrawLink(navLink);
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Gizmos.matrix = oldMatrix;
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Gizmos.color = oldColor;
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Gizmos.DrawIcon(navLink.transform.position, "NavMeshLink Icon", true);
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}
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public void OnSceneGUI()
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{
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var navLink = (NavMeshLink)target;
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if (!navLink.enabled)
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return;
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var toWorld = navLink.LocalToWorldUnscaled();
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navLink.GetWorldPositions(out var worldStartPt, out var worldEndPt);
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var worldMidPt = Vector3.Lerp(worldStartPt, worldEndPt, 0.35f);
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var startSize = HandleUtility.GetHandleSize(worldStartPt);
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var endSize = HandleUtility.GetHandleSize(worldEndPt);
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var midSize = HandleUtility.GetHandleSize(worldMidPt);
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var zup = Quaternion.FromToRotation(Vector3.forward, Vector3.up);
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var right = toWorld.MultiplyVector(GetLocalDirectionRight(navLink, out _, out _));
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var oldColor = Handles.color;
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Handles.color = s_HandleColor;
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Vector3 newWorldPos;
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var startIsLocal = navLink.startTransform == null;
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if (s_SelectedPoint == 0 && navLink.GetInstanceID() == s_SelectedID)
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{
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EditorGUI.BeginChangeCheck();
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if (startIsLocal)
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Handles.CubeHandleCap(0, worldStartPt, zup, 0.1f * startSize, Event.current.type);
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else
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Handles.SphereHandleCap(0, worldStartPt, zup, 0.1f * startSize, Event.current.type);
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newWorldPos = Handles.PositionHandle(worldStartPt, navLink.transform.rotation);
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if (EditorGUI.EndChangeCheck())
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{
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if (startIsLocal)
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{
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Undo.RecordObject(navLink, Content.UndoMoveLinkStartPoint);
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navLink.startPoint = toWorld.inverse.MultiplyPoint3x4(newWorldPos);
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}
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else
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{
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Undo.RecordObject(navLink.startTransform, Content.UndoMoveLinkStartObject);
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navLink.startTransform.position = newWorldPos;
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}
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}
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}
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else
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{
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if (Handles.Button(worldStartPt, zup, 0.1f * startSize, 0.1f * startSize,
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startIsLocal ? Handles.CubeHandleCap : Handles.SphereHandleCap))
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{
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s_SelectedPoint = 0;
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s_SelectedID = navLink.GetInstanceID();
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}
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}
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var endIsLocal = navLink.endTransform == null;
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if (s_SelectedPoint == 1 && navLink.GetInstanceID() == s_SelectedID)
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{
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EditorGUI.BeginChangeCheck();
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if (endIsLocal)
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Handles.CubeHandleCap(0, worldEndPt, zup, 0.1f * endSize, Event.current.type);
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else
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Handles.SphereHandleCap(0, worldEndPt, zup, 0.1f * endSize, Event.current.type);
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newWorldPos = Handles.PositionHandle(worldEndPt, navLink.transform.rotation);
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if (EditorGUI.EndChangeCheck())
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{
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if (endIsLocal)
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{
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Undo.RecordObject(navLink, Content.UndoMoveLinkEndPoint);
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navLink.endPoint = toWorld.inverse.MultiplyPoint3x4(newWorldPos);
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}
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else
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{
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Undo.RecordObject(navLink.endTransform, Content.UndoMoveLinkEndObject);
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navLink.endTransform.position = newWorldPos;
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}
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}
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}
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else
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{
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if (Handles.Button(worldEndPt, zup, 0.1f * endSize, 0.1f * endSize,
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endIsLocal ? Handles.CubeHandleCap : Handles.SphereHandleCap))
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{
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s_SelectedPoint = 1;
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s_SelectedID = navLink.GetInstanceID();
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}
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}
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EditorGUI.BeginChangeCheck();
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newWorldPos = Handles.Slider(worldMidPt + 0.5f * navLink.width * right, right, midSize * 0.03f, Handles.DotHandleCap, 0);
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if (EditorGUI.EndChangeCheck())
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{
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Undo.RecordObject(navLink, Content.UndoModifyLinkWidth);
|
||
|
|
navLink.width = Mathf.Max(0.0f, 2.0f * Vector3.Dot(right, (newWorldPos - worldMidPt)));
|
||
|
|
}
|
||
|
|
|
||
|
|
EditorGUI.BeginChangeCheck();
|
||
|
|
newWorldPos = Handles.Slider(worldMidPt - 0.5f * navLink.width * right, -right, midSize * 0.03f, Handles.DotHandleCap, 0);
|
||
|
|
if (EditorGUI.EndChangeCheck())
|
||
|
|
{
|
||
|
|
Undo.RecordObject(navLink, Content.UndoModifyLinkWidth);
|
||
|
|
navLink.width = Mathf.Max(0.0f, 2.0f * Vector3.Dot(-right, (newWorldPos - worldMidPt)));
|
||
|
|
}
|
||
|
|
|
||
|
|
Handles.color = oldColor;
|
||
|
|
}
|
||
|
|
|
||
|
|
[MenuItem("GameObject/AI/NavMesh Link", false, 2002)]
|
||
|
|
public static void CreateNavMeshLink(MenuCommand menuCommand)
|
||
|
|
{
|
||
|
|
var parent = menuCommand.context as GameObject;
|
||
|
|
NavMeshComponentsGUIUtility.CreateAndSelectGameObject("NavMesh Link", parent, typeof(NavMeshLink));
|
||
|
|
}
|
||
|
|
|
||
|
|
internal class DeferredLinkUpdateScope : IDisposable
|
||
|
|
{
|
||
|
|
readonly NavMeshLink m_NavLink;
|
||
|
|
readonly bool m_WasEnabled;
|
||
|
|
|
||
|
|
public DeferredLinkUpdateScope(NavMeshLink link)
|
||
|
|
{
|
||
|
|
m_NavLink = link;
|
||
|
|
m_WasEnabled = link.enabled;
|
||
|
|
link.enabled = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
public void Dispose()
|
||
|
|
{
|
||
|
|
m_NavLink.enabled = m_WasEnabled;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static class Content
|
||
|
|
{
|
||
|
|
public static readonly GUIContent AgentType = EditorGUIUtility.TrTextContent("Agent Type", "Specifies the agent type that can use the link.");
|
||
|
|
public static readonly GUIContent AreaType = EditorGUIUtility.TrTextContent("Area Type", "The area type of the NavMesh Link, which affects pathfinding costs.");
|
||
|
|
public static readonly GUIContent CostOverrideToggle = EditorGUIUtility.TrTextContent("Cost Override", "If enabled, the value below will be used instead of the area cost defined in the Navigation window.");
|
||
|
|
public static readonly GUIContent CostModifier = EditorGUIUtility.TrTextContent(" ", "If Cost Override is enabled, the link uses this cost instead of the area cost defined in the Navigation window.");
|
||
|
|
public static readonly GUIContent Positions = EditorGUIUtility.TrTextContent("Positions", "Configure the ends of the link, each specified either as a Transform's position or as an unscaled offset in the space of this GameObject.");
|
||
|
|
public static readonly GUIContent StartTransform = EditorGUIUtility.TrTextContent("Start Transform", "Transform whose world position specifies the link start point.");
|
||
|
|
public static readonly GUIContent StartPoint = EditorGUIUtility.TrTextContent("Start Point", "A local position where the link starts. Used only if Start Transform does not reference any object.");
|
||
|
|
public static readonly GUIContent EndTransform = EditorGUIUtility.TrTextContent("End Transform", "Transform whose world position specifies the link end point.");
|
||
|
|
public static readonly GUIContent EndPoint = EditorGUIUtility.TrTextContent("End Point", "A local position where the link ends. Used only if End Transform does not reference any object.");
|
||
|
|
public static readonly GUIContent ReverseDirectionButton = EditorGUIUtility.TrTextContent("Swap", "Reverse the direction of the link by swapping the start and end.");
|
||
|
|
public static readonly GUIContent ReCenterButton = EditorGUIUtility.TrTextContent("Re-Center Origin", "Place this GameObject at the middle point between the start and end of this link, and rotate it to point forward from the link start towards the end.");
|
||
|
|
public static readonly GUIContent Width = EditorGUIUtility.TrTextContent("Width", "World-space width of the segments making up the ends of the link.");
|
||
|
|
public static readonly GUIContent AutoUpdatePositions = EditorGUIUtility.TrTextContent("Auto Update Positions", "If enabled, the link will automatically update when the Start Transform, End Transform, or this GameObject's Transform changes.");
|
||
|
|
public static readonly GUIContent Bidirectional = EditorGUIUtility.TrTextContent("Bidirectional", "If enabled, agents can traverse the link in both directions.");
|
||
|
|
public static readonly GUIContent Activated = EditorGUIUtility.TrTextContent("Activated", "If enabled, allows the agents to traverse the link.");
|
||
|
|
public static readonly string UndoReCenterOrigin = L10n.Tr("Re-Center NavMesh Link origin");
|
||
|
|
public static readonly string UndoReverseDirection = L10n.Tr("Swap NavMesh Link start and end");
|
||
|
|
public static readonly string UndoMoveLinkStartPoint = L10n.Tr("Move NavMesh Link start point");
|
||
|
|
public static readonly string UndoMoveLinkStartObject = L10n.Tr("Move NavMesh Link start object");
|
||
|
|
public static readonly string UndoMoveLinkEndPoint = L10n.Tr("Move NavMesh Link end point");
|
||
|
|
public static readonly string UndoMoveLinkEndObject = L10n.Tr("Move NavMesh Link end object");
|
||
|
|
public static readonly string UndoModifyLinkWidth = L10n.Tr("Modify NavMesh Link width");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|