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Trivially optimize iteration order in loops

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Due to how node data is stored iterating X last provides better cache locality.
This commit is contained in:
sfan5
2024-04-23 19:43:08 +02:00
parent 2efd0996e6
commit 92d03f3832
4 changed files with 35 additions and 38 deletions
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4
src/environment.cpp
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@@ -185,9 +185,9 @@ void Environment::continueRaycast(RaycastState *state, PointedThing *result_p)
}
// For each untested node
for (s16 x = new_nodes.MinEdge.X; x <= new_nodes.MaxEdge.X; x++)
for (s16 z = new_nodes.MinEdge.Z; z <= new_nodes.MaxEdge.Z; z++)
for (s16 y = new_nodes.MinEdge.Y; y <= new_nodes.MaxEdge.Y; y++)
for (s16 z = new_nodes.MinEdge.Z; z <= new_nodes.MaxEdge.Z; z++) {
for (s16 x = new_nodes.MinEdge.X; x <= new_nodes.MaxEdge.X; x++) {
MapNode n;
v3s16 np(x, y, z);
bool is_valid_position;