Create a Blueprint for a simple FPS weapon that shoots raycasts and deals damage

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).

string

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Melee attack with sphere trace and damage in front of character

Pattern: Attack input → Branch(bCanAttack) → PlayMontage(AttackMontage) → SET bCanAttack=false. AnimNotify during montage: GetActorLocation + GetActorForwardVector*AttackRange → SphereTraceMulti(Loc, Loc+Forward*Range, AttackRadius) → ForEach hit: Branch(HitActor != Self AND not already hit) → ApplyDamage(HitActor, Damage). OnMontageEnded → SET bCanAttack=true.

GetTargetArmLength — get spring arm distance

ApplyPointDamage — deal point damage with hit info

Possess — make a Controller possess a Pawn

Character

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

Hit

A blocking collision between two shapes. Fires OnHit on both actors. Use for solid impacts.

Pawn

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