Erik 19aa8ce5d0 feat(core): Phase B.3 — TerrainSurface (outdoor heightmap Z + cell ID) ... Extracts the bilinear heightmap interpolation from GameWindow's inlined SampleTerrainZ into a reusable class. Also adds outdoor cell ID computation (8×8 grid of 24-unit cells, 0x0001..0x0040). First component of the physics collision engine. 6 new tests, all green. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>		2026-04-12 09:51:54 +02:00
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CellSurfaceTests.cs	feat(core): Phase B.3 — CellSurface (indoor floor polygon projection)	2026-04-12 09:51:22 +02:00
TerrainSurfaceTests.cs	feat(core): Phase B.3 — TerrainSurface (outdoor heightmap Z + cell ID)	2026-04-12 09:51:54 +02:00