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https://github.com/Kelsidavis/WoWee.git
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869124fa96
Three callers were each open-coding the same quantize-and-
bucket pass over vertex positions: --info-mesh-stats,
--info-wob-stats, and --bake-wom-collision. Move the
implementation to cli_weld.{hpp,cpp} as buildWeldMap() and
have each caller pass a flat positions array.
Identical std::map-based exact-equality keying preserved
(unbalanced-hash collisions remain absent). All three call
sites verified to produce byte-identical output:
• info-mesh-stats firepit: 240→80 verts, 0 boundary
• info-wob-stats cube: 8→8 verts, watertight YES
• bake-wom-collision tent: 18→6 verts, 8-tri WOC
About 75 lines of duplication removed; future weld-using
commands now opt in by including one header.
30 lines
1,002 B
C++
30 lines
1,002 B
C++
#pragma once
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#include <glm/glm.hpp>
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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namespace wowee {
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namespace editor {
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namespace cli {
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// Vertex weld pass shared by --info-mesh-stats / --info-wob-stats /
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// --bake-wom-collision. Positions are quantized onto a 1/eps grid;
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// every vertex sharing a cell with a previously-seen vertex is
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// remapped to that vertex's index. Returns canon[v] giving the
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// canonical (lowest-index) representative of v's equivalence class
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// and writes the count of distinct cells to `uniqueOut`.
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//
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// Implementation uses std::map<tuple<int64,int64,int64>, uint32_t>
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// for exact equality on the quantized key — a hash-based key would
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// risk false-positive collisions that incorrectly merge distinct
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// corners (e.g. a unit cube's 8 corners all hashing to 2 buckets).
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std::vector<uint32_t> buildWeldMap(
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const std::vector<glm::vec3>& positions,
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float eps,
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std::size_t& uniqueOut);
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} // namespace cli
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} // namespace editor
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} // namespace wowee
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