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Random formatting + java doc.
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asofold
parent
d8d6c5ab60
commit
1a87a9d0da
@ -8,6 +8,7 @@ import java.util.Collection;
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import java.util.List;
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import java.util.logging.Logger;
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import org.bukkit.Bukkit;
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import org.bukkit.ChatColor;
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import org.bukkit.Location;
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@ -18,194 +19,195 @@ import org.bukkit.entity.Player;
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import org.bukkit.util.Vector;
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/**
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* The Class CheckUtils.
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* Random auxiliary gear, some might have general quality.
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*/
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public class CheckUtils {
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/** The file logger. */
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public static Logger fileLogger = null;
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/** Decimal format for "#.###" */
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public static final DecimalFormat fdec3 = new DecimalFormat();
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static{
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DecimalFormatSymbols sym = fdec3.getDecimalFormatSymbols();
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sym.setDecimalSeparator('.');
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fdec3.setDecimalFormatSymbols(sym);
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fdec3.setMaximumFractionDigits(3);
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fdec3.setMinimumIntegerDigits(1);
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}
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/** The file logger. */
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public static Logger fileLogger = null;
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/**
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* Check if a player looks at a target of a specific size, with a specific precision value (roughly).
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*
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* @param player
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* the player
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* @param targetX
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* the target x
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* @param targetY
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* the target y
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* @param targetZ
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* the target z
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* @param targetWidth
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* the target width
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* @param targetHeight
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* the target height
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* @param precision
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* the precision
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* @return the double
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*/
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public static double directionCheck(final Player player, final double targetX, final double targetY,
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final double targetZ, final double targetWidth, final double targetHeight, final double precision) {
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/** Decimal format for "#.###" */
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public static final DecimalFormat fdec3 = new DecimalFormat();
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// Get the eye location of the player.
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final Location eyes = player.getEyeLocation();
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static {
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DecimalFormatSymbols sym = fdec3.getDecimalFormatSymbols();
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sym.setDecimalSeparator('.');
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fdec3.setDecimalFormatSymbols(sym);
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fdec3.setMaximumFractionDigits(3);
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fdec3.setMinimumIntegerDigits(1);
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}
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final double factor = Math.sqrt(Math.pow(eyes.getX() - targetX, 2) + Math.pow(eyes.getY() - targetY, 2)
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+ Math.pow(eyes.getZ() - targetZ, 2));
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/**
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* Check if a player looks at a target of a specific size, with a specific
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* precision value (roughly).
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*
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* @param player
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* the player
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* @param targetX
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* the target x
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* @param targetY
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* the target y
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* @param targetZ
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* the target z
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* @param targetWidth
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* the target width
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* @param targetHeight
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* the target height
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* @param precision
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* the precision
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* @return the double
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*/
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public static double directionCheck(final Player player, final double targetX, final double targetY, final double targetZ, final double targetWidth, final double targetHeight, final double precision)
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{
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// Get the view direction of the player.
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final Vector direction = eyes.getDirection();
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// Get the eye location of the player.
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final Location eyes = player.getEyeLocation();
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final double x = targetX - eyes.getX();
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final double y = targetY - eyes.getY();
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final double z = targetZ - eyes.getZ();
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final double factor = Math.sqrt(Math.pow(eyes.getX() - targetX, 2) + Math.pow(eyes.getY() - targetY, 2) + Math.pow(eyes.getZ() - targetZ, 2));
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final double xPrediction = factor * direction.getX();
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final double yPrediction = factor * direction.getY();
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final double zPrediction = factor * direction.getZ();
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// Get the view direction of the player.
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final Vector direction = eyes.getDirection();
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double off = 0.0D;
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final double x = targetX - eyes.getX();
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final double y = targetY - eyes.getY();
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final double z = targetZ - eyes.getZ();
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off += Math.max(Math.abs(x - xPrediction) - (targetWidth / 2 + precision), 0.0D);
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off += Math.max(Math.abs(z - zPrediction) - (targetWidth / 2 + precision), 0.0D);
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off += Math.max(Math.abs(y - yPrediction) - (targetHeight / 2 + precision), 0.0D);
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final double xPrediction = factor * direction.getX();
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final double yPrediction = factor * direction.getY();
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final double zPrediction = factor * direction.getZ();
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if (off > 1)
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off = Math.sqrt(off);
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double off = 0.0D;
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return off;
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}
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off += Math.max(Math.abs(x - xPrediction) - (targetWidth / 2 + precision), 0.0D);
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off += Math.max(Math.abs(z - zPrediction) - (targetWidth / 2 + precision), 0.0D);
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off += Math.max(Math.abs(y - yPrediction) - (targetHeight / 2 + precision), 0.0D);
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/**
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* Calculate the distance between two location, because for Bukkit distance is the distance squared and
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* distanceSquared is the distance non-squared.
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*
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* @param location1
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* the location1
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* @param location2
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* the location2
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* @return the double
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*/
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public static double distance(final Location location1, final Location location2) {
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return Math.sqrt(Math.pow(location2.getX() - location1.getX(), 2)
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+ Math.pow(location2.getY() - location1.getY(), 2) + Math.pow(location2.getZ() - location1.getZ(), 2));
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}
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if (off > 1) off = Math.sqrt(off);
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/**
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* Return if the two Strings are similar based on the given threshold.
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*
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* @param s
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* the first String, must not be null
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* @param t
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* the second String, must not be null
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* @param threshold
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* the minimum value of the correlation coefficient
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* @return result true if the two Strings are similar, false otherwise
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*/
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public static boolean isSimilar(final String s, final String t, final float threshold) {
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return 1.0f - (float) levenshteinDistance(s, t) / Math.max(1.0, Math.max(s.length(), t.length())) > threshold;
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}
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return off;
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}
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/**
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* Find the Levenshtein distance between two Strings.
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*
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* This is the number of changes needed to change one String into another, where each change is a single character
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* modification (deletion, insertion or substitution).
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*
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* @param s
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* the first String, must not be null
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* @param t
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* the second String, must not be null
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* @return result distance
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*/
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private static int levenshteinDistance(CharSequence s, CharSequence t) {
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if (s == null || t == null)
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throw new IllegalArgumentException("Strings must not be null");
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/**
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* Calculate the distance between two location, because for Bukkit distance
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* is the distance squared and distanceSquared is the distance non-squared.
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*
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* @param location1
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* the location1
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* @param location2
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* the location2
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* @return the double
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*/
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public static double distance(final Location location1, final Location location2)
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{
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return Math.sqrt(Math.pow(location2.getX() - location1.getX(), 2) + Math.pow(location2.getY() - location1.getY(), 2) + Math.pow(location2.getZ() - location1.getZ(), 2));
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}
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int n = s.length();
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int m = t.length();
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/**
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* Return if the two Strings are similar based on the given threshold.
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*
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* @param s
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* the first String, must not be null
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* @param t
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* the second String, must not be null
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* @param threshold
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* the minimum value of the correlation coefficient
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* @return result true if the two Strings are similar, false otherwise
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*/
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public static boolean isSimilar(final String s, final String t, final float threshold)
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{
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return 1.0f - (float) levenshteinDistance(s, t) / Math.max(1.0, Math.max(s.length(), t.length())) > threshold;
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}
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if (n == 0)
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return m;
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else if (m == 0)
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return n;
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/**
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* Find the Levenshtein distance between two Strings.
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*
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* This is the number of changes needed to change one String into another,
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* where each change is a single character modification (deletion, insertion or substitution).
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*
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* @param s
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* the first String, must not be null
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* @param t
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* the second String, must not be null
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* @return result distance
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*/
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private static int levenshteinDistance(CharSequence s, CharSequence t) {
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if (s == null || t == null) throw new IllegalArgumentException("Strings must not be null");
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if (n > m) {
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final CharSequence tmp = s;
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s = t;
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t = tmp;
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n = m;
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m = t.length();
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}
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int n = s.length();
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int m = t.length();
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int p[] = new int[n + 1];
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int d[] = new int[n + 1];
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int _d[];
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if (n == 0) return m;
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else if (m == 0) return n;
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int i;
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int j;
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if (n > m) {
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final CharSequence tmp = s;
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s = t;
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t = tmp;
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n = m;
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m = t.length();
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}
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char t_j;
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int p[] = new int[n + 1];
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int d[] = new int[n + 1];
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int _d[];
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int cost;
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int i;
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int j;
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for (i = 0; i <= n; i++)
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p[i] = i;
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char t_j;
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for (j = 1; j <= m; j++) {
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t_j = t.charAt(j - 1);
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d[0] = j;
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int cost;
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for (i = 1; i <= n; i++) {
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cost = s.charAt(i - 1) == t_j ? 0 : 1;
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d[i] = Math.min(Math.min(d[i - 1] + 1, p[i] + 1), p[i - 1] + cost);
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}
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for (i = 0; i <= n; i++)
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p[i] = i;
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_d = p;
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p = d;
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d = _d;
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}
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for (j = 1; j <= m; j++) {
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t_j = t.charAt(j - 1);
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d[0] = j;
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return p[n];
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}
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/**
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* Join parts with link.
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* @param input
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* @param link
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* @return
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*/
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public static <O extends Object> String join(final Collection<O> input, final String link){
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final StringBuilder builder = new StringBuilder(Math.max(300, input.size() * 10));
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boolean first = true;
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for (final Object obj : input){
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if (!first) builder.append(link);
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builder.append(obj.toString());
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first = false;
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}
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return builder.toString();
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}
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/**
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* Convenience method.
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* @param parts
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* @param link
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* @return
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*/
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public static <O extends Object> boolean scheduleOutputJoined(final List<O> parts, String link){
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return scheduleOutput(join(parts, link));
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}
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for (i = 1; i <= n; i++) {
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cost = s.charAt(i - 1) == t_j ? 0 : 1;
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d[i] = Math.min(Math.min(d[i - 1] + 1, p[i] + 1), p[i - 1] + cost);
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}
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_d = p;
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p = d;
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d = _d;
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}
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return p[n];
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}
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/**
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* Join parts with link.
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*
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* @param input
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* @param link
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* @return
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*/
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public static <O extends Object> String join(final Collection<O> input, final String link)
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{
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final StringBuilder builder = new StringBuilder(Math.max(300, input.size() * 10));
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boolean first = true;
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for (final Object obj : input) {
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if (!first) builder.append(link);
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builder.append(obj.toString());
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first = false;
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}
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return builder.toString();
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}
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/**
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* Convenience method.
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*
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* @param parts
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* @param link
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* @return
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*/
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public static <O extends Object> boolean scheduleOutputJoined(final List<O> parts, String link)
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{
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return scheduleOutput(join(parts, link));
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}
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/**
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* Schedule a message to be output by the bukkit logger.
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@ -307,15 +309,15 @@ public class CheckUtils {
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/**
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* Get the height from getLocation().getY() to head / above head.<br>
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* NOTE: Currently this is pretty much useless, it returns 1.0 most of the time.
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*
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* @param entity
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* @return
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*/
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public static double getHeight(final Entity entity) {
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final net.minecraft.server.Entity mcEntity = ((CraftEntity)entity).getHandle();
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final double entityHeight = mcEntity.height;
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if (entity instanceof LivingEntity){
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return Math.max(((LivingEntity) entity).getEyeHeight(), entityHeight);
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}
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else return mcEntity.height;
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}
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public static double getHeight(final Entity entity) {
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final net.minecraft.server.Entity mcEntity = ((CraftEntity) entity).getHandle();
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final double entityHeight = mcEntity.height;
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if (entity instanceof LivingEntity) {
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return Math.max(((LivingEntity) entity).getEyeHeight(), entityHeight);
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} else return mcEntity.height;
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}
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}
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