Blueprint Reference

Reference for Blueprint assets under Content/SpaceShooterTemplate/Blueprints/. Default values were read from class defaults in the template project.

Class diagram

flowchart TB
  GM["BP_SpaceRockGameMode<br/>MaxAsteroidsToSpawn: 30 · bCanSpawnAsteroids: true<br/>StartGame() · StartAsteroidSpawn()"]
  Ship["BP_Spaceship<br/>SpaceshipLives: 3 · RefireTime: 0.2 · Acceleration: 1000"]
  Rock["BP_SpaceRock<br/>Health: 100 · AsteroidSize: ESpaceRockSize"]
  Cannon["BP_BaseCannon<br/>Fire()"]
  Projectile["BP_Projectile<br/>Speed: 10000 · Damage: 100"]

  GM -->|possesses| Ship
  GM -->|spawns| Rock
  Ship -->|components| Cannon
  Cannon -->|spawns| Projectile

Enums

ECannonType

Value	Cannon component
None	No cannon selected (before Set Cannon Type)
SingleShot	BP_SingleShot
TripleShot	BP_TripleShot

Start Game calls Set Cannon Type on BP_Spaceship with the HUD selection.

ESpaceRockSize

Value	Default scale	Default speed	Score	Child count
Small	0.25	1400	10	0
Medium	0.75	800	20	3
Large	1.25	400	30	4
ExtraLarge	2.0	100	40	5

Maps on BP_SpaceRock: Asteroid Sizes, Asteroid Speeds, Asteroids Score, Asteroids Score Crit Multiplier, Child Asteroids, Rotation Rates, Explosion Effects.

Structs

ST_SaveGame

Field	Type	Default
High Score	Integer	0 (until first save)

ST_SpaceRockDestructionEffects

Field	Type
Particle Effect	Particle system
Sound Effect	Sound base

Default Explosion Effects use P_Explosion_Small … P_Explosion_ExtraLarge and Explosion_Cue.

BP_SpaceRockGameMode

Property	Default	Description
bCan Spawn Asteroids	true	Master spawn toggle
Max Asteroids To Spawn	30	Concurrent rock limit
Current Asteroids	0	Runtime count (updated on spawn/destroy)
Random Time	set per timer	Seconds until next spawn (Random Float in Range 1.0–3.0 on Event Graph)
Default Pawn Class	BP_Spaceship	Player pawn
Space Ship	reference	Spawned ship instance

Functions

Function	Description
Start Game	HUD entry — Set Cannon Type, Start Spaceship, hide mouse cursor, begin spawn
Restart Game	Reset session after game over
Start Asteroid Spawn	Enables spawn loop (Internal Enable Asteroid Spawn)
Spawn Next Asteroid	Spawns one BP_SpaceRock if under cap
Get Asteroid Spawn Location And Rotation	Screen-edge spawn point + direction
Internal Update Asteroid Count	Pushes count to WBP_PlayerHUD
Get Save Game Manager	Returns BP_SaveGameManager
Set Cannon Type	Stores cannon choice for the ship

Custom events on Event Graph: Start Asteroid Spawn, Spawn Asteroids, Spawn Next Asteroid.

BP_Spaceship

Property	Default	Description
Spaceship Lives	3	Remaining lives
Current Score	0	Run score
Current High Score	loaded at start	Best score this session
bEnable Continuos Firing	true	Hold Fire to repeat
Refire Time	0.2	Seconds between auto shots
Acceleration	1000	Forward thrust
Turn Rate	250	Rotation speed
Restart Delay	3	Game-over delay
FOV	100	Camera FOV
Current Cannon Type	None	Set before play via Set Cannon Type

Components

Component	Role
Space Ship Mesh Component	SM_Spacehip mesh + collision
BP_SingleShot / BP_TripleShot	Weapon components
BG Music	Background audio

Input events

Event	Calls
InputAxis MoveForward	Movement
InputAxis MoveRight	Rotation
InputAction Fire	Internal Fire Weapon

Functions

Function	Description
Internal Fire Weapon	Fire on Current Cannon
Internal Reduce Spaceship Lives	Decrement lives; Show Life Hearts; death at 0
Internal Try Save Game	Persist high score
Set Cannon Type	Enable BP_SingleShot or BP_TripleShot
Show Life Hearts	Update WBP_PlayerHUD

Delegates

Delegate	When
On Ship Dead	Fatal hit / lives exhausted
On Game Over	Forwards to HUD

BP_SpaceRock

Property	Default	Description
Health	100	Damage before Destroy Asteroid
Asteroid Size	Small	This instance’s ESpaceRockSize

Components

Component	Role
Asteroid Mesh Component	Static mesh + scale from Asteroid Sizes
Rotating Movement	Spin from Rotation Rates map

Functions

Function	Description
Apply Damage To Asteroid	Reduce Health
Asteroid Take Damage	Entry from projectiles
Destroy Asteroid	Split (Child Asteroids), VFX, score, Show Score
Internal Get Next Random Size	Pick spawn size
Show Score	Spawn WBP_HitDamage at screen position

BP_Projectile

Property	Default
Speed	10000
Damage	100

Mesh: SM_Missile. Uses Asteroid object channel for hits.

BP_BaseCannon (+ SingleShot / TripleShot)

Property / function	Value / role
Projectile Class	BP_Projectile
Fire	Spawn projectile(s)
Firing Sound	Played on fire
BP_TripleShot	Overrides Fire to spawn three projectiles

BP_SaveGameManager

Property	Default
Save Game Slot Name	SpaceShooterSaveGame
Save Game User Index	0

Function	Description
Load Game	Read ST_SaveGame
Save Game	Write slot when high score improves

WBP_PlayerHUD

Widget switcher HUD Tab — Change Hud Tab from game mode.

Function	Description
Update High Score	High Score Text
Update Asteroid Count	Asteroids Count Text
Show Life Hearts	Life display
Restart Game	Calls game mode Restart Game

WBP_HitDamage

Function	Description
Show Score	Floating points; Crit Animation when critical

BP_ObjectMacros

Macro library: Deproject Screen To World, Break Vector 2D, screen-wrap helpers.

Asset paths

Asset	Path
Game mode	Blueprints/BP_SpaceRockGameMode
Player pawn	Blueprints/BP_Spaceship
Asteroid	Blueprints/BP_SpaceRock
Projectile	Blueprints/BP_Projectile
Cannons	Blueprints/SpaceshipCannons/
Save	Blueprints/SaveGame/
HUD	Blueprints/Widgets/WBP_PlayerHUD, WBP_HitDamage
Demo map	Maps/DemoMap