From 8722a9920c1f6119bf6e769cba270e63097f8e25 Mon Sep 17 00:00:00 2001
From: chai <215380520@qq.com>
Date: Thu, 23 May 2024 10:08:29 +0800
Subject: + astar project

---
 .../com.arongranberg.astar/Pathfinders/FleePath.cs | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Pathfinders/FleePath.cs

(limited to 'Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Pathfinders/FleePath.cs')

diff --git a/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Pathfinders/FleePath.cs b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Pathfinders/FleePath.cs
new file mode 100644
index 0000000..7c3d62c
--- /dev/null
+++ b/Other/AstarPathfindingDemo/Packages/com.arongranberg.astar/Pathfinders/FleePath.cs
@@ -0,0 +1,59 @@
+using UnityEngine;
+
+namespace Pathfinding {
+	/// <summary>
+	/// Returns a path heading away from a specified point to avoid.
+	/// The search will terminate when G \> length (passed to the constructor) + FleePath.spread.
+	///
+	/// Can be used to make an AI to flee from an enemy (cannot guarantee that it will not be forced into corners though :D )
+	/// <code>
+	///
+	/// // Call a FleePath call like this, assumes that a Seeker is attached to the GameObject
+	/// Vector3 thePointToFleeFrom = Vector3.zero;
+	///
+	/// // The path will be returned when the path is over a specified length (or more accurately when the traversal cost is greater than a specified value).
+	/// // A score of 1000 is approximately equal to the cost of moving one world unit.
+	/// int theGScoreToStopAt = 10000;
+	///
+	/// // Create a path object
+	/// FleePath path = FleePath.Construct (transform.position, thePointToFleeFrom, theGScoreToStopAt);
+	/// // This is how strongly it will try to flee, if you set it to 0 it will behave like a RandomPath
+	/// path.aimStrength = 1;
+	/// // Determines the variation in path length that is allowed
+	/// path.spread = 4000;
+	///
+	/// // Get the Seeker component which must be attached to this GameObject
+	/// Seeker seeker = GetComponent<Seeker>();
+	///
+	/// // Start the path and return the result to MyCompleteFunction (which is a function you have to define, the name can of course be changed)
+	/// seeker.StartPath(path, MyCompleteFunction);
+	///
+	/// </code>
+	/// </summary>
+	public class FleePath : RandomPath {
+		/// <summary>
+		/// Default constructor.
+		/// Do not use this. Instead use the static Construct method which can handle path pooling.
+		/// </summary>
+		public FleePath () {}
+
+		/// <summary>
+		/// Constructs a new FleePath.
+		/// The FleePath will be taken from a pool.
+		/// </summary>
+		public static FleePath Construct (Vector3 start, Vector3 avoid, int searchLength, OnPathDelegate callback = null) {
+			var p = PathPool.GetPath<FleePath>();
+
+			p.Setup(start, avoid, searchLength, callback);
+			return p;
+		}
+
+		protected void Setup (Vector3 start, Vector3 avoid, int searchLength, OnPathDelegate callback) {
+			Setup(start, searchLength, callback);
+			// Set the aim to a point in the opposite direction from the point we to avoid
+			// TODO: Why is this multiplication by 10 here?
+			// Might want to remove it
+			aim = start - (avoid-start)*10;
+		}
+	}
+}
-- 
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