95 lines
2.3 KiB
C#
95 lines
2.3 KiB
C#
using UnityEngine;
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namespace Pathfinding.Graphs.Navmesh {
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using Pathfinding.Drawing;
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using Pathfinding.Util;
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/// <summary>
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/// Pruning of recast navmesh regions.
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/// A RelevantGraphSurface component placed in the scene specifies that
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/// the navmesh region it is inside should be included in the navmesh.
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///
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/// See: Pathfinding.RecastGraph.relevantGraphSurfaceMode
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/// </summary>
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[AddComponentMenu("Pathfinding/Navmesh/RelevantGraphSurface")]
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[HelpURL("https://arongranberg.com/astar/documentation/stable/relevantgraphsurface.html")]
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public class RelevantGraphSurface : VersionedMonoBehaviour {
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private static RelevantGraphSurface root;
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public float maxRange = 1;
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private RelevantGraphSurface prev;
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private RelevantGraphSurface next;
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private Vector3 position;
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public Vector3 Position {
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get { return position; }
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}
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public RelevantGraphSurface Next {
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get { return next; }
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}
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public RelevantGraphSurface Prev {
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get { return prev; }
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}
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public static RelevantGraphSurface Root {
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get { return root; }
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}
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public void UpdatePosition () {
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position = transform.position;
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}
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void OnEnable () {
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UpdatePosition();
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if (root == null) {
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root = this;
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} else {
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next = root;
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root.prev = this;
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root = this;
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}
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}
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void OnDisable () {
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if (root == this) {
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root = next;
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if (root != null) root.prev = null;
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} else {
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if (prev != null) prev.next = next;
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if (next != null) next.prev = prev;
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}
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prev = null;
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next = null;
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}
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/// <summary>
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/// Updates the positions of all relevant graph surface components.
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/// Required to be able to use the position property reliably.
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/// </summary>
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public static void UpdateAllPositions () {
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RelevantGraphSurface c = root;
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while (c != null) { c.UpdatePosition(); c = c.Next; }
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}
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public static void FindAllGraphSurfaces () {
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var srf = UnityCompatibility.FindObjectsByTypeUnsorted<RelevantGraphSurface>();
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for (int i = 0; i < srf.Length; i++) {
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srf[i].OnDisable();
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srf[i].OnEnable();
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}
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}
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public override void DrawGizmos () {
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var color = new Color(57/255f, 211/255f, 46/255f);
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if (!GizmoContext.InActiveSelection(this)) color.a *= 0.4f;
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Draw.Line(transform.position - Vector3.up*maxRange, transform.position + Vector3.up*maxRange, color);
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}
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}
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}
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