Player Interact and Pick-Up Item
This blueprint first checks if the player is holding anything. If he is, then he drops the held item. If the player isn’t holding anything, then a line trace is shot to find an “Interact Master” blueprint. It then checks if the interactable asset can be picked up. If the asset cannot, the player interacts with it like normal. If it's not, the item can be picked up.
Initially I had an issue that an object could be dropped within walls, but to resolve this, I had a line trace to check if there are any walls in front, and it would just drop.
Lightbulb and Light Spot
A lightbulb can be placed on a light spot, to illuminate an area. Different coloured lightbulbs can reveal different information. The yellow lightbulb only reveals the environment, but the red lightbulb can reveal hidden text to find a secret.
For the light spot, I had to make a lightbulb snap to the correct location and allow for the player to hover over a light spot when holding two different lightbulbs.
Upon reflection, I should have used a enum switch instead of a sequence and series of branches.
Books and Book Spines
The books and book-spines start separated and the player must combine them, to identity where the books would fit on the bookshelf.
I had to ensure that only the correct books and book-spines would snap together and be able to fit into the bookshelf correctly.
