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MapBlock::actuallyUpdateDayNightDiff(): little performance optimization
don't check isLightDayNightEq if checked on previous node
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@ -366,12 +366,19 @@ void MapBlock::actuallyUpdateDayNightDiff()
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/*
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Check if any lighting value differs
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*/
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MapNode previous_n;
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for (u32 i = 0; i < nodecount; i++) {
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MapNode &n = data[i];
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MapNode n = data[i];
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// If node is identical to previous node, don't verify if it differs
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if (n == previous_n)
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continue;
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differs = !n.isLightDayNightEq(nodemgr);
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if (differs)
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break;
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previous_n = n;
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}
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/*
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