SystemFunctions.java

gehe zur Dokumentation dieser Datei

package de.lathanda.eos.base;
 
import java.awt.Color;
import java.util.Calendar;
import java.util.Random;
public abstract class SystemFunctions {
    private static final Random random = new Random();
    public static Color colorFromRGBI(int r, int g, int b) {        
        return new Color(ri(r,0,255), ri(g,0,255), ri(b,0,255));
    }
    private static int ri(int value, int min, int max) {
        if (value <= min) return min;
        if (value >= max) return max;
        return value;
    }
    public static Color colorFromRGBD(double r, double g, double b) {
        return new Color(rf(r,0f,1f), rf(g,0f,1f), rf(b,0f,1f));
    }
    private static float rf(double value, float min, float max) {
        if (value <= min) return min;
        if (value >= max) return max;
        return (float)value;
    }
    public static int round(double z) {
        return (int)Math.round(z);
    }
    public static int floor(double z) {
        return (int)Math.floor(z);
    }
    public static int random(int von, int bis) {
        return random.nextInt(bis - von + 1) + von;
    }
    public static double abs(double z) {
        return Math.abs(z);
    }
    public static double sqrt(double z) {
        return Math.sqrt(z);
    }
    public static double sin(double alpha) {
        return Math.sin(alpha/180*Math.PI);
    }
    public static double cos(double alpha) {
        return Math.cos(alpha/180*Math.PI);        
    }
    public static double tan(double alpha) {
        return Math.tan(alpha/180*Math.PI);
    }
    public static double arctan(double m) {
        return Math.atan(m)*180/Math.PI;
    }
    public static double arcsin(double m) {
        return Math.asin(m)*180/Math.PI;
    }
    public static double arccos(double m) {
        return Math.acos(m)*180/Math.PI;
    }
    public static double phi(double x, double y) {
        double phi = Math.atan(y/x);
        if (x < 0) {
            return phi*180/Math.PI + 180;
        } else {
            return phi*180/Math.PI;
        }
    }
    public static double r(double x, double y) {
        return Math.sqrt(x*x+y*y);
    }
    public static int hour() {
        return Calendar.getInstance().get(Calendar.HOUR);
    }
    public static int minute() {
        return Calendar.getInstance().get(Calendar.MINUTE);
    }
    public static int second() {
        return Calendar.getInstance().get(Calendar.SECOND);
    }
    public static int year() {
        return Calendar.getInstance().get(Calendar.YEAR);
    }
    public static int month() {
        return Calendar.getInstance().get(Calendar.MONTH);
    }
    public static int day() {
        return Calendar.getInstance().get(Calendar.DATE);
    }
        
    
    public SystemFunctions() {}
}