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Game Development Projects with Unreal Engine

You're reading from  Game Development Projects with Unreal Engine

Product type Book
Published in Nov 2020
Publisher Packt
ISBN-13 9781800209220
Pages 822 pages
Edition 1st Edition
Languages
Authors (4):
Hammad Fozi Hammad Fozi
Profile icon Hammad Fozi
Gonçalo Marques Gonçalo Marques
Profile icon Gonçalo Marques
David Pereira David Pereira
Profile icon David Pereira
Devin Sherry Devin Sherry
Profile icon Devin Sherry
View More author details

Table of Contents (19) Chapters

Preface
1. Unreal Engine Introduction 2. Working with Unreal Engine 3. Character Class Components and Blueprint Setup 4. Player Input 5. Line Traces 6. Collision Objects 7. UE4 Utilities 8. User Interfaces 9. Audio-Visual Elements 10. Creating a SuperSideScroller Game 11. Blend Spaces 1D, Key Bindings, and State Machines 12. Animation Blending and Montages 13. Enemy Artificial Intelligence 14. Spawning the Player Projectile 15. Collectibles, Power-Ups, and Pickups 16. Multiplayer Basics 17. Remote Procedure Calls 18. Gameplay Framework Classes in Multiplayer

Collision Events

Let's say that there are two objects colliding into one another. Two things can happen:

  • They overlap each other, as if the other object weren't there, in which case the Overlap event is called.
  • They collide and prevent each other from continuing their course, in which case the Block event is called.

In the previous chapter, we learned how to change an object's response to a specific Trace channel. During this process, we learned that an object's response can be either Block, Overlap, or Ignore.

Now, let's see what happens in each of these responses during a collision.

Block: Two objects will only block each other if both of them have their response to the other object set to Block:

  • Both objects will have their OnHit events called. This event is called whenever two objects block each other's path at the moment they collide. If one of the objects is simulating physics, that object must have its SimulationGeneratesHitEvents...
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