Physics Body

A SceneComponent with simulate-physics enabled. Driven by forces, gravity, collisions instead of explicit transforms.

AddForce — apply continuous force to physics body

Continuous force — apply every frame. Use AddImpulse for one-shot.

AddForce — apply a continuous force to a physics body each frame

SetPhysicsLinearVelocity — directly set linear velocity of physics body

SetPhysicsLinearVelocity — directly set linear velocity of a physics body

AddTorqueInDegrees — apply rotational torque to physics body

AddImpulse — apply instant impulse to physics body

One-shot force. bVelChange=true treats Impulse as velocity change.

AddImpulse — apply an instant velocity change to a physics body

bVelChange=true treats Impulse as direct velocity change (ignores mass). bVelChange=false treats it as a force impulse (mass-dependent).

Ragdoll death: disable movement, enable physics on mesh

Pattern: custom OnDeath event → GetCharacterMovement → DisableMovement() → GetMesh → SetSimulatePhysics(bSimulate=true) → SetCollisionEnabled(NoCollision) on CapsuleComponent. Key: SetSimulatePhysics is called on the MESH component (SkeletalMeshComponent), NOT on the actor or CharacterMovementComponent. Also set collision profile: SetCollisionProfileName('Ragdoll') on the mesh.

OnHit

Fires when a physics collision happens. Use for impact effects, damage on contact.