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view src/luan/lib/MathLib.java @ 124:f537ff5e511d
minor cleanup
git-svn-id: https://luan-java.googlecode.com/svn/trunk@125 21e917c8-12df-6dd8-5cb6-c86387c605b9
author | fschmidt@gmail.com <fschmidt@gmail.com@21e917c8-12df-6dd8-5cb6-c86387c605b9> |
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date | Fri, 06 Jun 2014 03:41:04 +0000 |
parents | f5af13062b10 |
children | 3119326260ea |
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package luan.lib; import luan.LuanState; import luan.LuanTable; import luan.LuanFunction; import luan.LuanJavaFunction; import luan.LuanException; public final class MathLib { public static void load(LuanState luan) throws LuanException { luan.load("Math",LOADER); } public static final LuanFunction LOADER = new LuanFunction() { @Override public Object call(LuanState luan,Object[] args) { LuanTable module = new LuanTable(); try { add( module, "abs", Double.TYPE ); add( module, "acos", Double.TYPE ); add( module, "asin", Double.TYPE ); add( module, "atan", Double.TYPE ); add( module, "atan2", Double.TYPE, Double.TYPE ); add( module, "ceil", Double.TYPE ); add( module, "cos", Double.TYPE ); add( module, "cosh", Double.TYPE ); add( module, "deg", Double.TYPE ); add( module, "exp", Double.TYPE ); add( module, "floor", Double.TYPE ); add( module, "log", Double.TYPE ); add( module, "min", Double.TYPE, new double[0].getClass() ); add( module, "max", Double.TYPE, new double[0].getClass() ); add( module, "modf", Double.TYPE ); module.put("pi",Math.PI); add( module, "pow", Double.TYPE, Double.TYPE ); add( module, "rad", Double.TYPE ); add( module, "random" ); add( module, "sin", Double.TYPE ); add( module, "sinh", Double.TYPE ); add( module, "sqrt", Double.TYPE ); add( module, "tan", Double.TYPE ); add( module, "tanh", Double.TYPE ); } catch(NoSuchMethodException e) { throw new RuntimeException(e); } return module; } }; private static void add(LuanTable t,String method,Class<?>... parameterTypes) throws NoSuchMethodException { t.put( method, new LuanJavaFunction(MathLib.class.getMethod(method,parameterTypes),null) ); } public static double abs(double x) { return Math.abs(x); } public static double acos(double x) { return Math.acos(x); } public static double asin(double x) { return Math.asin(x); } public static double atan(double x) { return Math.atan(x); } public static double atan2(double y,double x) { return Math.atan2(y,x); } public static double ceil(double x) { return Math.ceil(x); } public static double cos(double x) { return Math.cos(x); } public static double cosh(double x) { return Math.cosh(x); } public static double deg(double x) { return Math.toDegrees(x); } public static double exp(double x) { return Math.exp(x); } public static double floor(double x) { return Math.floor(x); } public static double log(double x) { return Math.log(x); } public static double min(double x,double... a) { for( double d : a ) { if( x > d ) x = d; } return x; } public static double max(double x,double... a) { for( double d : a ) { if( x < d ) x = d; } return x; } public static double[] modf(double x) { double i = (int)x; return new double[]{i,x-i}; } public static double pow(double x,double y) { return Math.pow(x,y); } public static double rad(double x) { return Math.toRadians(x); } public static double random() { return Math.random(); } public static double sin(double x) { return Math.sin(x); } public static double sinh(double x) { return Math.sinh(x); } public static double sqrt(double x) { return Math.sqrt(x); } public static double tan(double x) { return Math.tan(x); } public static double tanh(double x) { return Math.tanh(x); } }