Arena FPS Character Controller

Arena FPS Movement System Kinematic movement framework for Unity designed for classic, fast-paced FPS movement. Built without Unity's built-in CharacterController or physics forces, relying instead on a custom collide-and-slide sweep solver running on a fixed-rate tick loop. Key Capabilities - Quake-style movement physics (air strafing, ground acceleration, friction, and speed caps). - Custom CapsuleCastNonAlloc collision solver with velocity plane clipping. - Fixed tick rate manager decoupled from rendering frame rate. - ScriptableObject configuration for all movement and physics parameters. - Abstract controller base class to decouple input handling from motor logic. - Built-in mechanics for crouch blending (with overhead clearance checks), sprinting, ladders, step-up/step-down handling, coyote time, jump buffering, and noclip. Script Architecture AFPSMotor The primary movement controller. Runs character state updates (Walking, Sprinting, Crouching) and physics calculations driven by AFPSTickManager. - Locomotion: Calculates ground friction, ground acceleration, air acceleration, slope limits, and terminal velocity. - Step Logic: Uses StepAndSlide to step over bumps up to MaxStepHeight, and StepDown to stay grounded when running down stairs or slopes. - Interactions: Handles ladder climbing based on relative angles, ceiling collision checks prior to standing up, and noclip state. - Events: Exposes OnJumped, OnLanded, and OnStateChanged events for UI, camera, or audio hooks. AFPSCollisionSolver A custom physics solver that handles capsule collision testing and velocity deflection manually. - Capsule Sweeps: Executes CapsuleSweep and GroundSweep via Physics.CapsuleCastNonAlloc using skin-width buffers to prevent floating-point sticking or wall clipping. - Plane Clipping: Uses ClipVelocity and a multi-plane loop (CollideAndSlide) to project movement vectors along intersecting geometry normals. AFPSTickManager A persistent singleton that controls movement tick timing. - Uses a delta-time accumulator set to a target frequency (default 125Hz) so movement behaves identically across varying frame rates. - Clamps max ticks per frame to protect against physics loops during lag spikes. AFPSSettings A ScriptableObject containing all configurable parameters: - Walk, sprint, crouch, air, and climb speeds. - Acceleration rates, air acceleration caps, friction, and stop speeds. - Gravity, max slope angle, max step height, terminal velocity, and noclip speed. - Jump force, coyote time, jump buffer duration, and raycast padding margins. AFPSControllerBase An abstract input abstraction layer. - Stores input vectors (MoveInput, LookRotation) and movement flags (Jump, Crouch, Sprint, Noclip). - Allows swapping between legacy Input, the New Input System, or AI drive logic without modifying AFPSMotor. ___________________________________________________________________________________________ User Guide (https://docs.google.com/document/d/1BZ7IIvNFpAHMWYwB7vm-HPFUbZHbYuIvMrhtIklmVYE/edit?usp=sharing) WebDemo (https://n1zk.itch.io/arena-fps-character-controller)