Correct the rectangle center offset calculation in Terrain to account
for both X and Y components perpendicular to each segment. Previously,
only the Y offset was applied, causing physics bodies to shift sideways
on sloped terrain. This fix resolves the bus visibly riding above or
through the ground on non-flat segments.
Also adds background and logo assets.
- Add checkered finish line entity with rippling flag pole (purely visual)
- Add three kid fall voice clips with random playback on kid ejection
- Add load tolerance for optional voice assets matching voiceLine.js pattern
- Preload kid fall sounds in PreloadScene and wire into KidManager
- Implement EngineSound system that pitches engine-heavy.mp3 based on rear
wheel angular velocity, with rate smoothing to avoid stair-stepping
- Add continuous menu music across Intro → MainMenu → LevelSelect scenes
- Add per-level voice-over support (level01: "Get the Money!")
- Redesign level01 with hand-crafted terrain sections (Flat, Incline,
Jump, Roller, Descent, Bumps, Flat, Descent, Bumps, Flat)
- Editor: per-section width and vertical scale (vScale) controls
- Editor: smooth entry blending between sections using angle-based
interpolation (avoids slope overshoot from naive height blending)
- Editor: new size-panel UI with range/number inputs and smooth checkbox
- Fix KidManager re-boarding: ejected kids must be settled before
re-boarding to prevent mid-air teleportation
- Load audio assets in PreloadScene; handle missing voice files gracefully
Ejection used to be g-force-triggered, but the suspension isolates the
chassis from shocks so the old threshold was effectively unreachable -
kids were never actually being ejected. Instead the bus now carries an
invisible three-sided box (floor + left/right walls, deliberately no
ceiling) pinned to the chassis with rigid constraints. The fixtures are
standalone bodies in a dedicated kid collision category, not compounded
into the chassis, because Matter only consults the root body's filter
on compounds, so only standalone bodies can be made to collide with kids
while the chassis part stays exempt.
KidManager now checks each kid's rotation-corrected chassis-local
position every physics tick and flips state in both directions: crossing
above the open top marks the kid ejected (light custom gravity,
kid_ejected texture), and drifting back down through it re-marks the kid
aboard. A per-tick hard clamp keeps kids from tunneling through the
floor/walls on a fast hit. Seat constraints and the settle timer are
gone - containment is purely physical collision. GForceMonitor is
demoted to a debug-only readout for landing diagnosis.
Kid art is now 5-frame spritesheets (one distinct kid per seat), with
the frame picked by seat index in Kid.js, and render order is fixed with
explicit depths (kids 1, bus chassis/wheels 2).
- New browser level editor (editor.html + src/editor/): assemble levels
from snap-together section generators (flat/inclines/hills/ditch/jump)
with a live canvas preview, metadata form, and export to ready-to-drop
levelNN.js source; example export registered as level04.js.
- Add parallax background sprites (bg_far/mid/near).
- Bus retune: softer, bouncier suspension (stiffness 0.45->0.35, damping
0.08->0.035, travel 12->30, restitution 0.3->0.45) with wheel rest
point raised 22->34 for a bouncier stance; drive force cut ~60%
(0.011->0.0045) for a much longer runway and lower top speed.
- Gravity 1 -> 0.675 for ~1.5x hang time off jumps; constraintIterations
2 -> 10 so the soft wishbone springs converge within one step.
- Bus: clamp each wheel to the underside of its wishbone anchor line on
every matter afterupdate, fixing wheels punching through to the
mirrored solution and sticking high on the chassis after hard impacts;
add no-op destroy() for the world listener.
- CameraRig: speed-driven horizontal lookahead (bus framed ~10% from the
left edge at rest, out to 1/3 of the screen at speed) via followOffset;
PlayScene scales the g-force grace period to 5.5s for the new gravity
and calls the new update()/destroy() hooks.
- Extend level01's terrain runway by 30x.
Brian Fertig