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54 lines
1.0 KiB
54 lines
1.0 KiB
package com.porcupine.time;
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/**
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* Class for counting FPS in games.<br>
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* This class can be used also as a simple frequency meter - output is in Hz.
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*
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* @author Ondřej Hruška (MightyPork)
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*/
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public class FpsMeter {
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private long frames = 0;
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private long drops = 0;
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private long lastTimeMillis = System.currentTimeMillis();
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private long lastSecFPS = 0;
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private long lastSecDrop = 0;
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/**
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* @return current second's FPS
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*/
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public long getFPS() {
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return lastSecFPS;
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}
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/**
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* Notification that frame was rendered
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*/
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public void frame() {
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if (System.currentTimeMillis() - lastTimeMillis > 1000) {
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lastSecFPS = frames;
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lastSecDrop = drops;
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frames = 0;
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drops = 0;
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lastTimeMillis = System.currentTimeMillis();
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}
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frames++;
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}
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/**
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* Notification that some frames have been dropped
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*
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* @param dropped dropped frames
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*/
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public void drop(int dropped) {
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drops += dropped;
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}
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/**
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* @return current second's dropped frames
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*/
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public long getDropped() {
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return lastSecDrop;
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}
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}
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