beezm/islaApocalypse
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

F2: continuous road grade — along-segment elevation + joint smoothing (D-021)

Browse source 
Road elevation is now sampled at the point on the road segment nearest the
column being carved, instead of at the segment's midpoint. The old behaviour
gave every column near a segment that segment's single midpoint height, so each
stretch of road was one flat plank and consecutive planks stepped like a
staircase wherever the road crossed a gradient.

Elevation now varies continuously along the segment, and because neighbouring
segments share an end point the height matches exactly at the joins. A new
ROAD_GRADE_SMOOTHING constant dials between holding a straight grade
(cut-and-fill) and hugging the land, per D-021.

Untouched: density field, Marching Cubes, chunk dimensions, the .dat contract,
and the 2D A* road network itself. Only how existing paths are carved into 3D.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Stewart Howe 2026-08-05 02:20:50 -04:00
parent ea11258871
commit 0910338a2a
2 changed files with 76 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

18
Core/Scripts/Constants.cs
View file

@ -23,5 +23,23 @@ namespace IslaApocalypse.Core
// Colour only. This does NOT affect terrain shape, collision, or what
// block is actually stored in a voxel.
public const float BLEND_BAND_METERS = 2.0f;
// --- ROAD GRADE TUNING ---------------------------------------------
// How much a road "holds a grade" instead of following every bump in
// the ground underneath it. Roads exist to be DRIVEN on, so this is a
// driveability setting, not a cosmetic one.
//
// 0.0 = hugs the land: the roadbed follows the terrain exactly.
// Never steps, but inherits every lump the ground has.
// 1.0 = holds a grade (default): each stretch of road is a straight
// ramp between its two path points, cutting through small
// bumps and filling small dips. Smoothest to drive.
//
// Values in between mix the two. Raise toward 1.0 for a more
// engineered road, lower toward 0.0 for a more rustic one.
//
// NOTE: this affects road ELEVATION (terrain shape under the road),
// not colour. Tune it properly once vehicles exist to drive on it.
public const float ROAD_GRADE_SMOOTHING = 1.0f;
}
}