53 lines
1.1 KiB
Java
53 lines
1.1 KiB
Java
/**
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* Copyright (c) SpaceToad, 2011 http://www.mod-buildcraft.com
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*
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* BuildCraft is distributed under the terms of the Minecraft Mod Public License
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* 1.0, or MMPL. Please check the contents of the license located in
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* http://www.mod-buildcraft.com/MMPL-1.0.txt
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*/
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package buildcraft.api.core;
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import net.minecraft.world.World;
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public class SafeTimeTracker
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{
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private long lastMark = Long.MIN_VALUE;
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private long duration = -1;
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/**
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* Return true if a given delay has passed since last time marked was called successfully.
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*/
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public boolean markTimeIfDelay(World world, long delay)
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{
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if (world == null)
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return false;
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long currentTime = world.getTotalWorldTime();
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if (currentTime < lastMark)
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{
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lastMark = currentTime;
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return false;
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}
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else if (lastMark + delay <= currentTime)
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{
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duration = currentTime - lastMark;
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lastMark = currentTime;
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return true;
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}
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else
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return false;
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}
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public long durationOfLastDelay()
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{
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return duration > 0 ? duration : 0;
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}
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public void markTime(World world)
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{
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lastMark = world.getTotalWorldTime();
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}
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}
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