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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/collision.cpp
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@ -291,9 +291,9 @@ collisionMoveResult collisionMoveSimple(Environment *env, IGameDef *gamedef,
bool any_position_valid = false;
v3s16 p;
for (p.X = min.X; p.X <= max.X; p.X++)
for (p.Z = min.Z; p.Z <= max.Z; p.Z++)
for (p.Y = min.Y; p.Y <= max.Y; p.Y++)
for (p.Z = min.Z; p.Z <= max.Z; p.Z++) {
for (p.X = min.X; p.X <= max.X; p.X++) {
bool is_position_valid;
MapNode n = map->getNode(p, &is_position_valid);