UE4 key to open the door

Based on the previous blog （UE4 Keyboard keys realize door opening and closing ） Add the function of key opening

Realization effect ：

Implementation steps ：

1. Click on Variable

 2. name Can I open the door

3. Drag it into Event chart

5. Here's the picture , Search for Branch And click the   , To determine whether the current Boolean value is True or False

 6. Here's the picture , attachment

7. The branch FALSE Connect one end to print the string

  therefore , Now just pick up the key , Change the Boolean value to True You can open the door

 8. Right click in the content browser , Click blueprints

 9. Click on Actor, Name the blueprint Key_BP

10. Download a key model from the Internet , Click here if necessary ： Key FBX Format 3D Model

11. Double-click to open Key_BP, Set the static mesh body key Move in  

12. Add spherical collision

 13. Click to add two overlapping events

 14. establish Get player controller 、 keyboard E、Gate、 Enable input 、 Disable input , Parallel connection

15. establish Gets all of the properties of the class actor, And select Actor Class by Door_BP

 16. Continue to create GET（ search Tools Array ）、SET Can I open the door

 17. In order to make the key invisible after taking it , It needs to be destroyed