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