Radar

Category: Listener Tier: Basic

Purpose

Detects objects within a cone-shaped field of view (FOV), like a radar or vision cone.

Visual Reference

As added to your scene

When To Use

1. Enemy AI Vision Cone

Radar Listener (Angle: 60 deg, Distance: 15.0, Group: "player", Expose Data: true)
-> AND Gate
-> Animation Executor (Play: "alert")
-> Property Executor (Set Global "enemy_alerted" = true)

Enemy detects player when in 60 deg FOV, plays alert animation.

2. Security Camera

Radar Listener (Angle: 90 deg, Distance: 20.0, Axis: +Z, LOS: true, Group: "intruders")
-> AND Gate
-> Sound Executor (Play: "alarm.wav")
-> Message Executor (Send: "INTRUDER_DETECTED")

Camera detects intruders in its cone, triggers alarm.

3. Stealth Game - Stay Out of Sight

Radar Listener (Angle: 90 deg, Distance: 10.0, Target: "Player", Invert: true)
-> AND Gate
-> Property Executor (Set Global "is_hidden" = true)

Check if player is NOT in guard’s vision (stealth success).

4. Auto-Aim System

Radar Listener (Angle: 30 deg, Distance: 50.0, Group: "enemies", Expose Data: true)
-> Expression Gate (radar_count > 0)
-> Track To Executor (Target: from Local Variable "radar_closest")

Turret aims at nearest enemy in narrow cone.

5. Peripheral Vision (Wide Cone)

Radar Listener (Angle: 180 deg, Distance: 5.0, Target: "Enemy")
-> AND Gate
-> PRINT Executor ("Enemy behind me!")

Detect enemies in 180 deg hemisphere (front half).

Runtime Behavior

Evaluates: TRUE when any/specific object is within the detection cone

Generated UI Mockup — showing expanded properties

Radar

-

x

Name:

Label this brick...

Invert

Target Mode:

v

Target Name:

v

Group Name:

v

Property Name:

v

Property Value:

v

Axis:

v

Cone Angle:

v

Distance:

v

Require Line Of Sight:

v

Expose Data:

v

Visual Debug:

v

Invert:

v

Properties

Property	Type	Default	Notes
target_mode	String, “Any”		Detection filter - Any, Object Name, Group, or Property
target_name	String, “”		Name of specific object (for Object Name mode)
group_name	String, “”		Group name to detect (for Group mode)
property_name	String, “”		Metadata property name (for Property mode)
property_value	String, “”		Expected property value (for Property mode)
axis	option, “+Z (Forward)”		Cone direction - +X, -X, +Y, -Y, +Z, or -Z
cone_angle	Float, 90.0		FOV cone angle in degrees
distance	Float, 20.0		Maximum detection range
require_line_of_sight	Boolean, true		Require clear raycast (Line of Sight)
expose_data	Boolean, true		Store detected object data in Local Variables
visual_debug	Boolean, false		Draw detection cone in editor/game for debugging
invert	Boolean, false		Trigger when NO objects detected