Skill Development

For this session in Unreal Engine, we were taught the basic blueprint logic for a key and door system used for many puzzles. First make a door with a collision box and a text. The door will be tied to a Boolean where the door will be destroyed using a Destroy Actor if the key is collected when the player collides with the box collision of the door. For the door logic, a Custom Event called Open Door with a Door Open node attached. You then set a relative location with the correct return values, splitting the structure pin on the Get World Location node for the X Y and Z axis. Then add an On Component Begin node for the collision box. From the As BP Person Character, add the == symbol onto a Branch node that requires the key for the door to open.

For the key, the opening steps are the same, make a shape with a box collision, then make a Custom Event this time called Pickup Key, which is used to make the door open using a Destroy Actor node. After setting up the == Branch segment like with the door, make the key object Cast to First Person Character so that the player can pickup the key when colliding with the collision box.