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functionality to compute subquad ids and corners

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devZoGok
2025-10-19 16:10:39 +03:00
parent 79c33f2f2a
commit ba9256da4a
2 changed files with 23 additions and 0 deletions
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quad.cpp
+18
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@@ -85,4 +85,22 @@ namespace vb01{
meshBase = MeshData(faceVertPos, nullptr, nullptr, nullptr, 6, norm, vertices, indices, numTris);
}
//TODO improve functionality for GUI quads
Vector2 Quad::getSubquadIds(int numVertDiv, int numHorDiv, Vector3 pos, Vector3 size){
const int numHorQuads = numVertDiv + 1, numVertQuads = numHorDiv + 1;
Vector2 subQuadSize = Vector2(size.x / numHorQuads, size.z / numVertQuads);
return Vector2(int((.5 * size.x + pos.x) / subQuadSize.x), int((.5 * size.z + pos.z) / subQuadSize.y));
}
Vector3 Quad::getSubquadCorner(int xId, int yId, int numVertDiv, int numHorDiv, bool top, bool right){
const int numHorQuads = numVertDiv + 1, numVertQuads = numHorDiv + 1;
int vertPosId = 6 * xId * numVertQuads + 6 * yId;
if(top && !right) return meshBase.positions[vertPosId];
else if(top && right) return meshBase.positions[vertPosId + 4];
else if(!top && !right) return meshBase.positions[vertPosId + 1];
else if(!top && right) return meshBase.positions[vertPosId + 3];
}
}