---
generated_by: gdlink-build
generated_at: 2026-06-23T12:34:28Z
do_not_edit: true
title: Signal
brick_type: executor
tier: Basic
generated: true
---

# Signal

**Category:** Executor
**Tier:** Basic

## Purpose

Emits a Godot signal from the owner or an explicit target node, allowing Logic Bricks to trigger external systems, other scripts, or broadcast events to listeners.

## Visual Reference

```{raw} html
<div class="illustration-container"><div class="illustration-box"><div class="box-header">As added to your scene</div><img src="https://gdlink.solventech.ca/guide/assets/images/bricks/signal_executor.png" alt="Signal brick as it appears in the GDLink editor" loading="lazy" style="max-width:100%;height:auto;display:block;margin:0 auto;border-radius:8px;" /></div></div>
```

## Runtime Behavior

**Inputs**
- **Activate** (Pulse): Emits the signal.

**Outputs**
None.

**Properties**
- **Signal Name** (String, "my_signal"): The name of the signal to emit.
- **Target Node** (String, ""): Optional node path/name to emit from. Empty means the brick owner.
- **Parameters** (String / compatibility-only): Reserved field in the UI. Native runtime currently ignores parameters and emits without arguments.

**Execution Behavior**

**Connect Logic**
- No connection needed; emits from the owner node by default.
- If `target_node` is set, the executor resolves that node and emits from it instead.

**Tick Behavior**
- When activated:
    - Check if signal exists on target.
    - If yes, emit it.
    - Missing targets or missing signals fail safely as no-ops.

**State Changes**
None.

**Examples**

**Basic Usage**
- **Signal Name**: `level_completed`
- **Result**: Emits "level_completed" so the Game Manager can React.

**Advanced Usage**
- **Signal Name**: `damage_taken`
- **Parameters**: `[10, "fire"]`
- **Result**: Emits damage event with amount and type.

```{raw} html
<div class="illustration-container">
        <div class="illustration-box">
            <div class="box-header">Generated UI Mockup — showing expanded properties</div>
            <div class="real-node brick-executor">
                <div class="real-header">
                    <div class="real-title"><span class="brick-icon-fallback"></span> <span>Signal</span></div>
                    <div class="real-controls"><div class="real-checkbox"></div><div class="real-btn">-</div><div class="real-btn">x</div></div>
                </div>
                <div class="real-inner-panel"><div class="real-row name-row" style="position:relative;"><span class="real-label">Name:</span><div class="real-input" style="color:#666; font-style:italic;">Label this brick...</div><div class="real-port" style="left:-15px;"></div></div><div class="real-row"><span class="real-label" style="width: auto; padding-right:8px;">Signal Name:</span><div class="real-input" style="justify-content:space-between; padding:4px 8px;"><span></span><div class="real-input-dropdown-btn" style="padding:2px 6px;">v</div></div></div><div class="real-row"><span class="real-label" style="width: auto; padding-right:8px;">Parameters:</span><div class="real-input" style="justify-content:space-between; padding:4px 8px;"><span>[]</span><div class="real-input-dropdown-btn" style="padding:2px 6px;">v</div></div></div><div class="real-row"><span class="real-label" style="width: auto; padding-right:8px;">Target Node:</span><div class="real-input" style="justify-content:space-between; padding:4px 8px;"><span></span><div class="real-input-dropdown-btn" style="padding:2px 6px;">v</div></div></div></div>
            </div>
        </div>
    </div>
```

## Properties

| Property | Type | Default | Notes |
|---|---|---|---|
| Signal | signal_dropdown |  | Signal to listen to |
| Target Node | string |  | Node that emits the signal (empty = self) |