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Assets/Plugins/ParadoxNotion/NodeCanvas/Tasks/Conditions/GameObject/IsInFront.cs

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+using NodeCanvas.Framework;
+using ParadoxNotion.Design;
+using UnityEngine;
+
+
+namespace NodeCanvas.Tasks.Conditions
+{
+
+    [Name("Target In View Angle")]
+    [Category("GameObject")]
+    [Description("Checks whether the target is in the view angle of the agent")]
+    public class IsInFront : ConditionTask<Transform>
+    {
+
+        [RequiredField]
+        public BBParameter<GameObject> checkTarget;
+        [SliderField(1, 180)]
+        public BBParameter<float> viewAngle = 70f;
+
+        protected override string info {
+            get { return checkTarget + " in view angle"; }
+        }
+
+        protected override bool OnCheck() {
+            return Vector3.Angle(checkTarget.value.transform.position - agent.position, agent.forward) < viewAngle.value;
+        }
+
+        public override void OnDrawGizmosSelected() {
+            if ( agent != null ) {
+                Gizmos.matrix = Matrix4x4.TRS(agent.position, agent.rotation, Vector3.one);
+                Gizmos.DrawFrustum(Vector3.zero, viewAngle.value, 5, 0, 1f);
+            }
+        }
+    }
+}