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thirdpersonshooter

Attempt to create a version of my previous Lyra-based game (Pegasus), but without all the Lyra bloat as I've often no idea what that template is doing.

Also trying to use C++ over blueprints to make source compare easier.

Getting Started

  1. Download & install Visual Studio Code and Unreal Engine
  2. Install Git LFS with > git lfs install
  3. Clone the repo
  4. Launch the Unreal editor by double+clicking on the .uproject file in File Explorer or by launching the editor directly
  5. Edit > Editor Preferences... > Source Code
  6. Change the Source Code Editor to Visual Studio Code
  7. Tools > Refresh Visual Studio Code Project
  8. Close out the Unreal editor
  9. Open the newly created .code-workspace file in the root of the project
  10. Ctrl+Shift+D to show the Run and Debug clover
  11. Select ▶ Launch ThirdPersonShooterEditor (Development)
  12. F5 to launch the Unreal editor with the VS Code debugger attached!

Tips and Tricks

C++ intellisense is borderline-useless with Unreal projects. Might be size, idk. Anyways, I mainly use Search (Ctrl+F) to find variable references. Make sure that if you're doing this globally that you toggle the Search Details (triple dot) and add ./ThirdPersonShooter to the files to include. This will prevent Code from searching the entire Unreal Engine source, which is probably not what you want.

Backlog

  • swap to anim motion-matching & get assets for flying
  • enable camera-collision for the vehicle parts
  • move loose vehicle collision settings to presets
  • add armor w/damage reduction
  • shotgun crashes the engine if you shoot 2 silhouettes in quick succession
    • Tracked this down to GCNL_Character_Damaged for the Select & Queue Admin func - think the multiple hits so close are breaking something?
  • Exiting the editor will cause an Access violation executing location 0xFFFFFFFFFFFFFFFF to be thrown with no source or context available
  • should probably move the MaxStackCount for ammo to an ASC AttributeSet

Developer Notes

  • Lyra uses FFastArraySerializer in LyraEquipmentManagerComponent.h and the linker breaks when I try to import the header file
    • I'm sure this is important for multiplayer, so will need to address this eventually
    • I've fixed the linker error, but need to go back and implement the removed FFastArraySerializer references
  • Need to figure out how to keep track of inventory items that can vs can't stack
  • Research asset manager registrations for:
    • UEquipmentConfiguration
    • UInventoryItemDefinition
    • UEquipmentItemDefinition
  • 30000.0 cm/s is a good muzzle velocity for blaster bolts

Question and Answer

  • What is the difference between a GameplayCue, and a GameplayEvent in terms of GameplayTags?
    • assume GameplayCue is 'Hey, you're supposed to do X now', and GameplayEvent is 'Y just happened'

    GameplayEvents are used by the AbilitySystemComponent to track when an ability should be triggered by a certain 'event' - see GA_WeaponFire listening for the InputTag.x

    • Is it though? Removing the InputTag from the GA_ doesn't affect functionality... InputTag_Bindings holds the link between the 2...

    GameplayCues are typically for the server telling the client to do some VFX/SFX thing - see the GameplayCue for grenades

  • Add a PawnCosmeticComponent to AModularPawn & have equipment attach to scene elements in that
    • probably fine for this to just be a part of the EquipmentManagerComponent?
    • only case where it's not would be for truly cosmetic only things like character customization
      • look to the SKM_MannyInvis
  • Figure out how to use AssetManager w/cosmetics etc. (Data registries?)
  • Add the NotifyName for post Activate Anim Layer and Play Paired Montage to listen for animation notify event
  • Lyra has the AbilitySystemComponent off the PlayerState, not the Pawn, where is the best location?
  • Make sure I'm using ALevelInstance right with GameFeatureAction_AddLevelInstance (streaming, etc)
  • Add a func for InteractableObjectsFound instead of just changed
  • Move GA_Interaction_Activate to a C++ class
    • Same with GA_Interaction_Collection