Drum Sequencer

The Drum Sequencer (D-SEQR) device lets you place notes on a grid to create a looping pattern. You can create a sequence consisting of up to five different notes per step, or choose from preset drum patterns.

Connect this sequencer to an audio generator device like the Patchwork Drum Sequencer and then into an speaker device to hear the results. It is the start of a device chain that results in audio output.

Device Options

Other Device Options

In Create mode, walk up to the device and press E to open the Customize panel. Some device options mirror the controls you can manipulate with the Patchwork tool. They are present so that you can use the event binding system to trigger changes to how those controls behave, although you can choose to change them here instead of using the knobs. The Allow Cable Access option can only be modified using the Customize panel.

Note Grid

The note grid is where you select the specific notes you want to play. On the right side, select a note from the column on the right, then target and select grid squares to toggle them On and Off.

Click and drag over the grid to place or remove multiple notes of the selected shape.

VFX Preview

The VFX preview for the Drum Sequencer shows:

• Each of the sequencer steps

• Which of the steps have content

• The sequencer's progression through the steps

Direct Event Binding

Following are the direct event binding options for this device.

Functions

A function listens for an event on a device then performs an action.

1. For any function, click the option, then Select Device to access and select from the Device dropdown menu.

2. Once you've selected a device, click Select Event to bind the device to an event that will trigger the function.

3. If more than one device or event triggers a function, click the Add button to add a line and repeat these steps.

Events

An event tells another device when to perform a function.

1. For any event, click the option, then Select Device to access and select from the Device dropdown menu.

2. Once you've selected a device, click Select Function to bind this event to a function for that device.

3. If more than one function is triggered by the event, click the Add button to add a line and repeat these steps.

Using Drum Sequencer in Verse

You can use the code below to control a Drum Sequencer device in Verse. This code uses all features of the Drum Sequencer device API. Modify it to fit the needs of your experience.

using { /Fortnite.com/Devices }

using { /Verse.org/Simulation }

using { /UnrealEngine.com/Temporary/Diagnostics }

# A Verse-authored creative device that can be placed in a level

drum_sequencer_example := class(creative_device):

    @editable

    DrumSequencer:patchwork_drum_sequencer_device = patchwork_drum_sequencer_device{}

    # Runs when the device is started in a running game

    OnBegin<override>()<suspends>:void=

        

        Sleep(5.0)

        DrumSequencer.Disable()

        Print("Device Disabled")

        Sleep(5.0)

        DrumSequencer.Enable()

        Print("Device Enabled")

Copy full snippet

using { /Fortnite.com/Devices } using { /Verse.org/Simulation } using { /UnrealEngine.com/Temporary/Diagnostics } # A Verse-authored creative device that can be placed in a level drum_sequencer_example := class(creative_device): @editable DrumSequencer:patchwork_drum_sequencer_device = patchwork_drum_sequencer_device{} # Runs when the device is started in a running game OnBegin<override>()<suspends>:void= Sleep(5.0) DrumSequencer.Disable() Print("Device Disabled") Sleep(5.0) DrumSequencer.Enable() Print("Device Enabled")

To use this code in your UEFN experience, follow these steps.

1. Drag a drum sequencer device onto your island.

2. Create a new Verse device named drum_sequencer_example. To learn how to create a new device in Verse, see Create Your Own Device Using Verse.

3. Open Verse Explorer and double-click drum_sequencer_example.verse to open the script in Visual Studio Code.

4. Paste in the code above, compile, and drag the Verse-authored device onto your island.

5. Select your Verse device in the Outliner.

6. In the device’s Details panel, assign the object reference for the DrumSequencer to the drum sequencer device on your island. You can use the eyedropper to pick the device in the viewport, or use the dropdown and search for the device.

7. Save your project and click Launch Session.

Drum Sequencer API

See the drum_sequencer_device API Reference for more information on using the drum sequencer device in Verse.

Patch Ideas

Try connecting the Drum Sequencer to any of these devices!