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118 lines
1.5 KiB
118 lines
1.5 KiB
package net.sector.util;
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import com.porcupine.math.Calc;
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/**
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* Double which supports delta timing
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*
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* @author Ondřej Hruška (MightyPork)
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*/
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public class DeltaDouble {
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/** target double */
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public double d = 0;
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/** last tick double */
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public double dlast = 0;
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/**
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* new DeltaDouble
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*
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* @param d value
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*/
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public DeltaDouble(double d) {
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this.dlast = this.d = d;
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}
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/**
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* Get target double
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*
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* @return number
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*/
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public double get() {
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return d;
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}
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/**
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* Set to a value (both last and future)
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*
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* @param d
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*/
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public void set(double d) {
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this.dlast = d;
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this.d = d;
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}
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/**
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* Copy other
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*
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* @param d
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*/
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public void set(DeltaDouble d) {
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this.dlast = d.dlast;
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this.d = d.d;
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}
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/**
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* Store value for delta timing
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*/
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public void pushLast() {
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dlast = d;
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}
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/**
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* Get value at delta time
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*
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* @param dtime time
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* @return interpolated value
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*/
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public double delta(double dtime) {
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return Calc.interpolate(dlast, d, dtime);
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}
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/**
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* Add
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*
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* @param num num
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*/
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public void add(double num) {
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d += num;
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}
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/**
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* Subtract
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*
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* @param num num
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*/
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public void sub(double num) {
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d -= num;
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}
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/**
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* multiply
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*
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* @param num num
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*/
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public void mul(double num) {
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d *= num;
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}
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/**
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* Divide
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*
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* @param num num
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*/
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public void div(double num) {
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d /= num;
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}
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/**
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* Clamp to range
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*
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* @param min min
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* @param max max
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*/
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public void clamp(double min, double max) {
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d = Calc.clampd(d, min, max);
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}
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}
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