fix brownian behavior

source/Behavior/Brownian.ts

@@ -132,7 +132,7 @@ class Brownian extends Behavior<IBrownianBehaviorParameter, IBrownianBehaviorEve
 				const vLen = individual.vectorLength(individual.velocity);
 
 				// 随机旋转算法
-				if (vLen !== 0) {
+				if (vLen > 0) {
 					randomDir = this.randomFocusRange(
 						[
 							individual.velocity[0] / vLen,
@@ -141,6 +141,10 @@ class Brownian extends Behavior<IBrownianBehaviorParameter, IBrownianBehaviorEve
 						],
 						this.parameter.angle / 2
 					);
+
+					if (isNaN(randomDir[0]) || isNaN(randomDir[1]) || isNaN(randomDir[2])) {
+						randomDir = this.randomFocus360()
+					}
 				}
 
 				else {
@@ -153,10 +157,12 @@ class Brownian extends Behavior<IBrownianBehaviorParameter, IBrownianBehaviorEve
 				randomDir = this.randomFocus360()
 			}
 
+			const randomLength = minStrength + Math.random() * (maxStrength - minStrength);
+
 			individual.applyForce(
-				minStrength + randomDir[0] * (maxStrength - minStrength),
+				randomDir[0] * randomLength,
-				minStrength + randomDir[1] * (maxStrength - minStrength),
+				randomDir[1] * randomLength,
-				minStrength + randomDir[2] * (maxStrength - minStrength)
+				randomDir[2] * randomLength
 			);
 
 			nextTime = minFrequency +  Math.random() * (maxFrequency - minFrequency);

source/Behavior/SampleTracking.ts

@@ -5,6 +5,7 @@ import { Model } from "@Model/Model";
 
 type ISampleTrackingBehaviorParameter = {
     target: "CLG",
+    key: "string",
 	strength: "number",
     range: "number",
     angle: "number",
@@ -27,6 +28,7 @@ class SampleTracking extends Behavior<ISampleTrackingBehaviorParameter, ISampleT
 
 	public override parameterOption = {
 		target: { type: "CLG", name: "$Target" },
+        key: { type: "string", name: "$Key"},
         range: { type: "number", name: "$Range", defaultValue: 4, numberMin: 0, numberStep: .1 },
         angle: { type: "number", name: "$Angle", defaultValue: 180, numberMin: 0, numberMax: 360, numberStep: 5 },
 		strength: { type: "number", name: "$Strength", defaultValue: 1, numberMin: 0, numberStep: .1 },
@@ -81,7 +83,7 @@ class SampleTracking extends Behavior<ISampleTrackingBehaviorParameter, ISampleT
                             dirArr[i][0] += targetDir[0];
                             dirArr[i][1] += targetDir[1];
                             dirArr[i][2] += targetDir[2];
-                            valArr[i] += targetIndividual.getData("Wastage.Pheromone") ?? 0;
+                            valArr[i] += targetIndividual.getData(this.parameter.key) ?? 0;
                             isFindNest = true;
                         }
                     }
@@ -90,7 +92,7 @@ class SampleTracking extends Behavior<ISampleTrackingBehaviorParameter, ISampleT
 
                         // 保存
                         dirArr.push(targetDir);
-                        valArr.push(targetIndividual.getData("Wastage.Pheromone") ?? 0);
+                        valArr.push(targetIndividual.getData(this.parameter.key) ?? 0);
                     }
                 }
             });
@@ -124,6 +126,10 @@ class SampleTracking extends Behavior<ISampleTrackingBehaviorParameter, ISampleT
 			"ZH_CN": "追踪目标",
 			"EN_US": "Tracking target"
 		},
+        "$Key": {
+            "ZH_CN": "计算键值",
+			"EN_US": "Calculate key value"
+        },
         "$Accuracy": {
             "ZH_CN": "采样精度",
 			"EN_US": "Sampling accuracy"