com.badlogic.gdx.math

Class Bresenham2

java.lang.Object

com.badlogic.gdx.math.Bresenham2

public class Bresenham2
extends Object

Returns a list of points at integer coordinates for a line on a 2D grid, using the Bresenham algorithm.

Instances of this class own the returned array of points and the points themselves to avoid garbage collection as much as possible. Calling any of the methods will result in the reuse of the previously returned array and vectors, expect

Author:

badlogic

Constructor Summary

Constructors

Constructor and Description
Bresenham2()

Method Summary

Modifier and Type	Method and Description
Array<GridPoint2>	line(GridPoint2 start, GridPoint2 end) Returns a list of GridPoint2 instances along the given line, at integer coordinates.
Array<GridPoint2>	line(int startX, int startY, int endX, int endY) Returns a list of GridPoint2 instances along the given line, at integer coordinates.
Array<GridPoint2>	line(int startX, int startY, int endX, int endY, Pool<GridPoint2> pool, Array<GridPoint2> output) Returns a list of GridPoint2 instances along the given line, at integer coordinates.

Methods inherited from class java.lang.Object

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

Constructor Detail

Bresenham2

public Bresenham2()

Method Detail

line

public Array<GridPoint2> line(GridPoint2 start,
                              GridPoint2 end)

Returns a list of GridPoint2 instances along the given line, at integer coordinates.

Parameters:

start - the start of the line

end - the end of the line

Returns:

the list of points on the line at integer coordinates

line

public Array<GridPoint2> line(int startX,
                              int startY,
                              int endX,
                              int endY)

Returns a list of GridPoint2 instances along the given line, at integer coordinates.

Parameters:

startX - the start x coordinate of the line

startY - the start y coordinate of the line

endX - the end x coordinate of the line

endY - the end y coordinate of the line

Returns:

the list of points on the line at integer coordinates

line

public Array<GridPoint2> line(int startX,
                              int startY,
                              int endX,
                              int endY,
                              Pool<GridPoint2> pool,
                              Array<GridPoint2> output)

Returns a list of GridPoint2 instances along the given line, at integer coordinates.

Parameters:

startX - the start x coordinate of the line

startY - the start y coordinate of the line

endX - the end x coordinate of the line

endY - the end y coordinate of the line

pool - the pool from which GridPoint2 instances are fetched

output - the output array, will be cleared in this method

Returns:

the list of points on the line at integer coordinates