Game Assets:

All of the assets required can be downloaded here.

The sprites are in the Traps --> Platforms

Folder.

Add the Platforms folder to the FileSystem

Level Design:

Create any level you like.

You may copy my level layout.

We will spawn Strawberries dynamically

Also, we will create scenes for a Horizontal platform and Vertical Platform

You don't have those yet

How to make the chain / rail paths

The chain is just a TextureRect node

Which uses the Chain.png image as the texture

Set the Stretch mode to Tile

Now you can stretch the image

Rotate it 90 degrees for vertical rails

Select the RailLevel node

Attach a Script to it

Set the number of strawberries you plan

to use in the level

Horizontal Rail Scene

Create a new scene with AnimatableBody2D as the root

This is so the player will move with the platform when on it

Rename it to HorizontalRail

Add a CollisionShape2D

Choose new RectangleShape 2D

Add an AnimatedSprite2D

Add a new Sprite Frames resource

Click on the SpriteFrames resource

Rename the default animation to "off"

Use the Grey Off.png as the only frame

Add a new animation

Rename it to "on"

Press Ctrl+Shift+O

Choose the Grey On.png file

Set Horizontal frames to 8

Set Vertical frames to 1

Select All

Add 8 frames

Set the off Autoplay

Turn on looping

Set FPS to 5

Add a RayCast2D node

Set Target Position Y to 10

Set Transform Position X to 17

Add an Area2D node as a child of HorizontalRail

Add a CollisionShape2D node as a child of Area2D

Add a New RectangleShape2D

Extend the Area2D collision shape above the platform

Attach a script to the HorizontalRail node

Get a reference to the AnimatedSprite2D so that

we can play the off and on animations

Get a reference to the RayCast2D so we can determine when it is no longer colliding

Create variables to

set the move amount

set the direction

flag if the platform can move

The platform can only move

when the player triggers it

Connect the body entered signal

of the Area2D

In the body entered function

Check if the body is the player

then set can_move to true

play the ON animation

In the physics process function

if can_move is true

continuously update the position of the platform

by move_amount x direction

How do we know when the track ends?

That's what the RayCast is for - we need something for it to detect...

Return to the RailLevel scene

Add a StaticBody2D as a child

of your horizontal chain

Add a CollisionShape2D as a child

of the StaticBody2D

Add a New RectangleShape2D

Place the collision shape

underneath the rail track

As long as the ray cast is colliding with the collision shape

we know that we are still on the track.

In the RailLevel Scene select the StaticBody2D

of the Chain

Put it on its own Collision Layer (7)

Turn off all masks

In the HorizontalRail scene

Select the RayCast2D

Set the CollisionMask to 7

So that the Ray is looking for

the StaticBody representing the track

Now complete the process function:

if the ray is no longer colliding

set can_move to false

reverse the direction

move the ray to the opposite side of the platform

play the off animation

Previous: Hover Platforms

NEXT: Vertical Lift

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