Spawn system with wave management for enemies

Pattern: Variables CurrentWave(int)=0, EnemiesAlive(int)=0, EnemiesPerWave(Array<int>). StartWave: CurrentWave++ → SET EnemiesAlive=EnemiesPerWave[CurrentWave]. Timer looping: Branch(SpawnedThisWave < EnemiesPerWave[CurrentWave]) → SpawnActor(EnemyClass, RandomSpawnPoint) → SpawnedThisWave++. OnEnemyDeath: EnemiesAlive-- → Branch(EnemiesAlive <= 0) → StartNextWave or Victory.

Create a Blueprint for a spawner that spawns enemies at random locations within a box volume every few seconds

ApplyDamage — deal damage to a target actor

UGameplayStatics::ApplyDamage. Triggers EventAnyDamage on target.

Pawn

An Actor that can be possessed by a Controller. Use for the player's avatar and AI agents.

Possess — make a Controller possess a Pawn

string

string

Projectile actor that moves forward and deals damage on hit

Pattern: BP_Projectile with SphereCollision(root), StaticMesh, ProjectileMovementComponent(InitialSpeed=3000, MaxSpeed=3000, bRotationFollowsVelocity=true). OnComponentHit → ApplyDamage(OtherActor, Damage, GetInstigatorController, Self) → SpawnEmitterAtLocation(ImpactPoint) → DestroyActor. Spawner: SpawnActorFromClass(BP_Projectile, MuzzleLocation, MuzzleRotation).

Character

A Pawn pre-built for bipedal movement. Comes with a CharacterMovementComponent for walking/jumping/swimming.

SpawnSystemAtLocation — spawn a Niagara/Cascade particle system

UNiagaraFunctionLibrary::SpawnSystemAtLocation. bAutoDestroy=true for fire-and-forget. Use SpawnSystemAttached to attach to a component.

Health and damage system with ApplyDamage and EventAnyDamage

Dealing damage: Event → ApplyDamage(TargetActor, BaseDamage, InstigatorController, DamageCauser, DamageTypeClass). Receiving: EventAnyDamage → Damage output → Subtract_FloatFloat(CurrentHealth, Damage) → FClamp(Result, 0, MaxHealth) → SET CurrentHealth → Branch(CurrentHealth <= 0) → True: DestroyActor. Initialize CurrentHealth=MaxHealth in BeginPlay.