Unreal Engine Multiplayer C++ Inventory, Crafting, Building

This video we will setup the item and table structures for our inventory items

Having setup the item and table structure in the previous video, we need a simplified version of the inventory item to save on memory and ease of replication.

Its finally time to setup the inventories storage component that we can use. This will be the base for the rest of the course so this is an important step

What inventory doesn't allow you to add items to it, this is setting up the functionality to allow us to add new items to our inventory

Like adding items, we need the ability to remove items from the inventory, these are fairly simple and straight forward so this is a short video

The HasItem is for querying our storage to see if we have respective items we need for future functionality

As we allow stacking of items we need the ability to remove a number of items. This is very similar to the other functions we have already done

Converting our storage component to be replication ready is a crucial part of any multiplayer game, be sure to follow this closely

What multiplayer game doesnt have the ability to share items in a box, lets create a shared storage that everyone can dive into

We are now moving on to the User Interface portion of the inventory section, here we create the outer containers for the inventory

Each item in our inventory needs a voice, a visual, so here we are going to create our template for each item to use

I am quite partial to drag and drop inventories so this is how you would implement it in unreal engine

We need to drop items, so we need some UI that will mark as a "drop into the world/on the floor"

The crux of the series, shared storage UI bring our replication into focus and finally allows our character to store items safely away

Some items like consumables are often met with that pesky cooldown timer, here is how to implement it, not essential if you never want to see a cooldown timer again

Once we have dropped an item, we kind of need the ability to pick it up again! common sense right?

This is a simple bug fix for the issues in the previous video, guess what....it was one line of code!

Welcome to the crafting section, like the storage component, here we are going to create a crafting component

With crafting comes that wonderful book of recipes, here we create the structure needed for our crafting

Working with timers, always fun, some crafting in games takes time to process, so lets add the logic that will allow us to turn this on at the change of a table property

If we are already crafting we may want to cancel it (assuming it has a timer), so we can implement the logic here.

As with the inventory UI, lets start by creating a crafting container for all our recipes to be displayed

The template for each of our crafting items, and how to display what is required for each recipe

Like the shared storage, we want to make sure that we have UI ready for more than one person to descend into the crafting nightmare you will unleash on them

Final video for crafting, lets make sure our crafting is multiplayer ready

On to the final section of our course, the building, here like previously we setup its own component so we can encapsulate all our logic

All building in games requires the fabled line tracing, a rather important step into placing buildings

Using our fancy new line trace, now we need to get the hit location of where we are looking at

As we want to place buildings, its easier if all placed building pieces stem from the same parent class, that way we can inherit a lot of the logic

In order to build, we need the ability to spawn our new buildings into the world, this is a vital bit of code, without it, no building

Up to you if you want to implement this but the ability to rotate buildings has always been a requirement for some types of buildings

Now that we have spawned our building, we need to be able to place it and leave it in the world for all to use

Most building games require a cost for building, lets give you the ability to set what items are required and remove them from our storage component

Lets get the building replicated so everyone can see what is happening

Back to our UI, lets create a building menu that you can select your building pieces from

Here we show the recipe and requirements for each of the building items

Some bug fixes for the previous video and some of the UI in the course, not many it seems

Congratulations on finishing the course. I hope it has helped you and I hope you have happy days coming up with complicated recipes and games. Thank you for watching.