Add and set up barriers

Overview

Barriers are used to block access to dungeons and worlds, which have not yet been unlocked by the player.
Once the player unlocks the area, they are removed and access is granted.

How to add a barrier

To add a new barrier to a world, do the following:

  1. Open the scene, in which the barrier should be

  2. Create a new game object as a child of the Barriers game object on the hierarchy
    Hierarchy view

  3. Add the Barrier script, two Box Collider 2D components and a Sprite Renderer component to the created game object
    Inspector view

  4. Place the object where the barrier should be, on the pathway towards the area it should block (via the x and y coordinates)

  5. Adjust the trigger area of one Box Collider 2D component using the Edit collider button to specifies the area in which the player gets information about the barrier
    Collider component Trigger area

  6. Adjust the collider area of the second Box Collider 2D component using the Edit collider button to sets the collider of the barrier
    Collider component Collider area

  7. Set the Is Trigger flag at the first Box Collider 2D component (the one for the trigger area)
    Trigger flag

How to set up a barrier

Provide the required data for the barrier at the Barrier component
Script component

  1. Type: Select World Barrier to block access to another world or Dungeon Barrier to block access to a dungeon of the world

  2. Origin World Index: The index of the world the barrier is in

  3. Destination Area Index: The index of the world or dungeon the barrier is blocking access to (world or dungeon is specified in the Type attribute)

You also need to set up the Sprite Renderer component.

  1. Select a sprite as the visible appearance of barrier as the Sprite attribute.
    Sprite renderer component

  2. Select in the Sorting Layer drop-down menu BackGround

  3. The Order In Layer attribute has to be 4

Prefab

You can also speed up that process by using the provided prefab, located at Assets/Prefabs/Barriers.
Prefab
Simply drag an drop the Barrier object into the scene hierarchy as a child of the Barriers game object. You can then skip steps 2, 3 and 7 as well as steps 2 and 3 of the Sprite Renderer component.