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Merge pull request #1 from lukflug/dev
Version 0.1.0
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| Original file line number | Diff line number | Diff line change |
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@@ -4,5 +4,5 @@ plugins { | |
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| allprojects { | ||
| group = 'com.lukflug' | ||
| version = '0.0.3' | ||
| version = '0.1.0' | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,65 @@ | ||
| package com.lukflug.panelstudio; | ||
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| /** | ||
| * Class representing an animation. | ||
| * @author lukflug | ||
| */ | ||
| public abstract class Animation { | ||
| /** | ||
| * Current value. | ||
| */ | ||
| protected double value; | ||
| /** | ||
| * Past value. | ||
| */ | ||
| protected double lastValue; | ||
| /** | ||
| * Time of last value transition. | ||
| */ | ||
| protected long lastTime=System.currentTimeMillis(); | ||
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| /** | ||
| * Set a value immediately, without an transition animation. | ||
| * @param value the new value | ||
| */ | ||
| public void initValue(double value) { | ||
| this.value=value; | ||
| lastValue=value; | ||
| } | ||
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| /** | ||
| * The the current value. | ||
| * @return an interpolated value between {@link #value} and {@link #lastValue} depending on the current time | ||
| */ | ||
| public double getValue() { | ||
| if (getSpeed()==0) return value; | ||
| double weight=(System.currentTimeMillis()-lastTime)/(double)getSpeed(); | ||
| if (weight>=1) return value; | ||
| else if (weight<=0) return lastValue; | ||
| return value*weight+lastValue*(1-weight); | ||
| } | ||
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| /** | ||
| * Get the target value. | ||
| * @return the current {@link #value} | ||
| */ | ||
| public double getTarget() { | ||
| return value; | ||
| } | ||
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| /** | ||
| * Set the value, with a transition between the old and new value. | ||
| * @param value the new value | ||
| */ | ||
| public void setValue(double value) { | ||
| lastValue=getValue(); | ||
| this.value=value; | ||
| lastTime=System.currentTimeMillis(); | ||
| } | ||
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| /** | ||
| * Used to obtain the animation speed. | ||
| * @return time a transition should take in milliseconds | ||
| */ | ||
| protected abstract int getSpeed(); | ||
| } |
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