Description
Spline Path System – Movement Framework is a Blueprint-only spline-locked movement solution for “rail / guided path” gameplay with optional junction switching and room transitions.
Key Features
- Spline-Locked Movement (No Drift): player movement is strictly constrained to the active spline.
- Single-Axis Input: movement uses only one axis (forward/back) while on spline.
- Junction Switching: show an interaction prompt and press E to switch to an alternate spline at junctions.
- Room Transition Mode: exit spline mode and restore full WASD movement inside “Room” areas.
- Optional Camera Blends: smoothly blend to a new camera when entering a room (if configured).
- Blueprint-Only: no C++, easy to integrate.
How It Works
- Enter spline mode via BP_SplineSwitchTrigger.
- While on spline, movement is locked to the path (no sideways movement).
- At junction triggers, a prompt appears: “Press E to switch path”.
- At end triggers, you can either exit spline mode or transition into a room (full WASD).
Controls / Input
SPLINE MOVEMENT (LOCKED)
- Movement is strictly constrained to the spline (no sideways drift).
- Axis mapping depends on SwitchSpline:
- SwitchSpline = False — driven by X
- SwitchSpline = True — driven by Y
- Enter the path via BP_SplineSwitchTrigger.
ROOM MODE (UNLOCKED WASD)
- EndPath can be configured as a room transition (CanGoToRoom = True).
- Exits spline mode and restores full WASD movement.
- Optional: if NewCamera is set, the view blends to that camera on enter.
- Return to spline via BP_SplineSwitchTrigger.
Included
- Blueprint actors: Spline switch triggers / junction triggers / end triggers
- Example level setup (recommended)
- Basic UI prompt widget (switch path)
Notes
Designed for quick integration: place splines + triggers, assign references, play.
This system is also included in my full version asset.
Technical Details
Features:
- Spline-locked player movement (no sideways drift)
- Junction switching between splines with Press E prompt
- Optional “Room” transition that restores full WASD movement
- Optional camera blending on room enter (NewCamera / SetViewTargetWithBlend)
- Blueprint-only, plug-and-play example setup
Number of Blueprints:
- Core Blueprints: ~5 (Actors + Actor Component + Widget)
Input (preconfigured):
- Keyboard: WASD movement
- Interaction: E (switch path at junctions)
- Axis usage while on spline:
- SwitchSpline = False → driven by X
- SwitchSpline = True → driven by Y
Network Replicated:
- No
Supported Development Platforms:
- Windows: Yes
Documentation Link: https://docs.google.com/document/d/1ccCAWifHdvtzW01coThYot6Eej8UGT-a4L08uYyuIM4/edit?usp=sharing
Important/Additional Notes:
- Requires the player pawn/character to have the spline movement Actor Component (SplinePawnComponent / AC_Spline).
- Place spline actors and triggers, assign spline references, then play.
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