104 lines
3.1 KiB
Java
104 lines
3.1 KiB
Java
/*
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* Copyright (c) 2018, 7u83
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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package opensesim.world.scheduler;
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/**
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*
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* @author 7u83 <7u83@mail.ru>
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*/
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public class Clock {
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private double current_millis;
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private long last_nanos;
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private double current_nanos;
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private double acceleration;
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public double getAcceleration() {
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return acceleration;
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}
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public void setAcceleration(double acceleration) {
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synchronized (this) {
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this.acceleration = acceleration;
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this.notifyAll();
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}
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}
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private boolean pause = false;
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public boolean isPause() {
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return pause;
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}
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public void setPause(boolean pause) {
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this.pause = pause;
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}
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Clock() {
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this.acceleration = 1.0;
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this.current_nanos = 0;
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this.current_millis = 0.0;
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this.last_nanos = System.nanoTime();
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}
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private long currentTimeMillis1() {
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long nanos = System.nanoTime();
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long diff = nanos - last_nanos;
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last_nanos = nanos;
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if (pause) {
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return (long) this.current_millis;
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}
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this.current_nanos += (double) diff * (double) this.acceleration;
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this.current_millis = this.current_nanos / 1000000.0;
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return (long) this.current_millis;
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}
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public long currentTimeMillis() {
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return (long) this.current_millis;
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}
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synchronized long getDelay(long t) {
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long current = currentTimeMillis1();
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if (t > current) {
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return (long) (((double) t - this.current_millis) / this.acceleration);
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}
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/* if (t < ct) {
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// System.out.printf("Time is overslipping: %d\n",ct-t);
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this.current_millis = t;
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this.current_nanos = this.current_millis * 1000000.0;
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}*/
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return 0;
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}
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}
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