tools

Class Utils

java.lang.Object

tools.Utils

public class Utils
extends java.lang.Object

Created with IntelliJ IDEA. User: Diego Date: 17/10/13 Time: 12:13 This is a Java port from Tom Schaul's VGDL - https://github.com/schaul/py-vgdl

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static int	argmax(double[] values)
static Vector2d	choice(java.util.ArrayList<Vector2d> elements, java.util.Random rnd)
static int	choice(int[] elements, java.util.Random rnd)
static java.lang.Object	choice(java.lang.Object[] elements, java.util.Random rnd)
static Direction	choiceDir(java.util.ArrayList<Direction> elements, java.util.Random rnd)
static int	findMaxDivisor(int value)
static java.lang.String	formatString(java.lang.String str)
static double	noise(double input, double epsilon, double random) Adds a small noise to the input value.
static double	normalise(double a_value, double a_min, double a_max)
static Direction	processMovementActionKeys(boolean[] key_pressed, int idx)
static boolean	processUseKey(boolean[] key_pressed, int idx)
static java.lang.String[][]	readGames(java.lang.String filename) Processes a file with game names (containing full path).
static java.awt.Polygon	roundedPoints(java.awt.Rectangle rect)
static java.lang.String	toStringArray(java.lang.String[] array)
static java.awt.Polygon	triPoints(java.awt.Rectangle rect, Direction orientation) Returns the Polygon for a triangle in the middle of the provided rect, pointing in the orientation (given as angle from upwards, or orientation vector)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Utils

public Utils()

Method Detail

choice

public static java.lang.Object choice(java.lang.Object[] elements,
                                      java.util.Random rnd)

choice

public static int choice(int[] elements,
                         java.util.Random rnd)

choiceDir

public static Direction choiceDir(java.util.ArrayList<Direction> elements,
                                  java.util.Random rnd)

choice

public static Vector2d choice(java.util.ArrayList<Vector2d> elements,
                              java.util.Random rnd)

formatString

public static java.lang.String formatString(java.lang.String str)

triPoints

public static java.awt.Polygon triPoints(java.awt.Rectangle rect,
                                         Direction orientation)

Returns the Polygon for a triangle in the middle of the provided rect, pointing in the orientation (given as angle from upwards, or orientation vector)

Parameters:

rect - rectangle with the location

orientation - orientation of the sprite.

Returns:

a polygon (triangle) with the specified orientation.

roundedPoints

public static java.awt.Polygon roundedPoints(java.awt.Rectangle rect)

processMovementActionKeys

public static Direction processMovementActionKeys(boolean[] key_pressed,
                                                  int idx)

normalise

public static double normalise(double a_value,
                               double a_min,
                               double a_max)

noise

public static double noise(double input,
                           double epsilon,
                           double random)

Adds a small noise to the input value.

Parameters:

input - value to be altered

epsilon - relative amount the input will be altered

random - random variable in range [0,1]

Returns:

epsilon-random-altered input value

processUseKey

public static boolean processUseKey(boolean[] key_pressed,
                                    int idx)

argmax

public static int argmax(double[] values)

toStringArray

public static java.lang.String toStringArray(java.lang.String[] array)

findMaxDivisor

public static int findMaxDivisor(int value)

readGames

public static java.lang.String[][] readGames(java.lang.String filename)

Processes a file with game names (containing full path). Assumes that the input is csv, with each line with the format: N, fullPath Where N is the index and fullPath the full path to the file, including extension (.txt).