The Basics

This is the layout of Architect's editor UI:

This page of the guide focuses specifically on the right hand side, and explains how to select objects, modify them and use tools to help with level editing.

For information on the left hand side of this UI, see the Object Configuration and Events and Listeners pages.

Entering Edit Mode

To toggle edit mode, press the 'E' key.

This will make you invulnerable to damage and allow you to fly around for the purpose of level creation, and will allow you to access the editor UI when the game is paused.

Press the key again to disable edit mode.

Placing Objects

To place an object down, you first need to select it from the grid on the right hand side of the screen.

You can navigate this grid using the left and right keybinds (the keys you use to walk around), and can use the search bar and category buttons to filter specific objects.

When the game is not paused, a red preview of the currently selected object will appear on the cursor, indicating where it will be placed. Move the cursor and use left click to place the object.

Scale, Rotation and Flip

If you want to change the rotation and scale of an object, you can use the R key for rotation, the F key to flip the object, and the Plus and Minus keys for scale.

You can also change the rotation and scale to specific values by editing the "Scale" and "Rotation" options in the pause menu.

By default the Rotation keybind will only rotate objects in 'safe' ways - ways the object can be rotated without acting strange.

To override this you can set the rotation manually, or hold the Left Alt key as you rotate the object.

To rotate an object clockwise instead of anti-clockwise when using the Rotation keybind, hold the Left Shift key.

Align Objects

Sometimes when making a level, you may want to make sure two objects are aligned, such as making a flat surface or ensuring that decorations are in line with each other.

To do this, you can hold down Right Shift, to lock your cursor to align it with the last object you placed.

The Hotbar

The Hotbar lets you have up to 9 different objects selected at a time.

It appears in the bottom middle of the screen when the game is not paused, and you can switch between slots using the number keys.

By holding the Left Alt key as you select an object or use the Pick tool, the object will be placed in your next available empty slot (if you have an empty slot), rather than in your current slot.

Favourites and Prefabs

Favourited objects will appear in the Favourites tab, and are used to quickly select objects you want to use frequently.

Prefabs will appear in the Prefabs tab, and are used to store objects and all their settings (such as configuration options) to re-use later.

To add an object to your favourites list, click the star next to the object in the selection grid. The star will turn yellow, and the object will appear in your favourites.

To remove an object from your favourites, click the button again.

To create a prefab, press the Enter key. This will save the current object on your cursor as a prefab, storing all the settings you applied.

To delete a prefab, click the red cross icon that appears next to it in the Prefabs category.

Tools

Next to the list of objects are the 7 "Tool" objects you can use for editing - the Cursor, the Eraser, the Pick Tool, the Lock Tool, the Drag Tool, the Tilemap Editor and the Reset Rocket.

Cursor

The Cursor is used to view the ID of a placed object, which is used to reference the object in certain configuration settings, such as putting it on a track with the the Moving Object Anchor.

To see the ID of an object simply click the object with the cursor tool active.

Eraser

The eraser is used to delete an object you have placed down. To delete an object, simply click it with the eraser.

The eraser tool does not work with objects that exist in the base game. To remove vanilla objects, use the remover items in the Utilities category.

Pick Tool

The pick tool can be used to copy a placed object to your cursor, allowing you to view its settings or place another copy elsewhere.

To edit an object that has already been placed select it with the pick tool, make your changes then hold the O key and click the original object to overwrite it.

Drag Tool

The drag tool allows you to select and move objects, and can be used to move a single object or move multiple at once, as well as copying and pasting objects.

To drag a single object, click and drag it with the drag tool active.

To select multiple objects, you can hold the Left Control key and click on objects to select or deselect them, then click and drag to move them all at once.

You can also click and drag over an area to select many objects at the same time, with a green outline appearing over the selected area.

Selected objects will be tinted green to indicate that they are currently selected.

You can also copy your current selected objects with the C key, and paste them with P.

Using the eraser you can also delete multiple objects at once, by first selecting them with the drag tool, then switching to the eraser and left clicking.

Lock Tool

The lock tool can lock a placed object in place, preventing it from being interacted with using the editor until it is unlocked.

This has no effect on regular gameplay, only the editor, and can be useful for locking things like large trigger zones that may get in the way of editing.

Click an object once to lock it, and again to unlock it.

Tilemap Editor

The tilemap is a grid made up of black tiles with collision.

This tool can be used to add or remove tiles from the tilemap, to remove a chunk of the wall or ground or add solid collision.

This does not work out of bounds, as the tilemap is limited to the normal size of the room.

Reset Rocket

The Reset Rocket will clear all edits you have made in a room, resetting it to its original state.

This cannot be undone, so only use the Reset Rocket if you are sure you want to delete your changes.

To use the Reset Rocket you must hold left click with the tool active.

A 3 second countdown will appear on the screen, before the edits are deleted. Releasing the left click button before the countdown has finished will abort the process.

Undo/Redo

If you make a mistake when editing, you can use the Z and Y keybinds to undo and redo actions.

This applies to most changes you can make when editing, including placing objects, deleting them, and pasting copies.

Note that your undo history is cleared when you use the Reset Rocket or when you leave the current room, so be careful to avoid losing your work!