PixiJS

Class: GroupD8

PIXI.GroupD8

new PIXI.GroupD8()

GroupD8.js:77

Implements Dihedral Group D_8, see group D4, D8 is the same but with diagonals. Used for texture rotations.

Vector xX(i), xY(i) is U-axis of sprite with rotation i Vector yY(i), yY(i) is V-axis of sprite with rotation i Rotations: 0 grad (0), 90 grad (2), 180 grad (4), 270 grad (6) Mirrors: vertical (8), main diagonal (10), horizontal (12), reverse diagonal (14) This is the small part of gameofbombs.com portal system. It works.

Author:
  • Ivan @ivanpopelyshev

Methods

PIXI.GroupD8.byDirection(dx, dy)numberstatic

GroupD8.js:130
Name Type Description
dx number

TODO
dy number

TODO
Returns:
Type Description
number TODO

PIXI.GroupD8.isSwapWidthHeight(rotation)booleanstatic

deprecation.js:626
Name Type Description
rotation number

The number to check.
Deprecated
  • since version 4.6.0
    See:
    Returns:
    Type Description
    boolean Whether or not the direction is vertical

    PIXI.GroupD8.isVertical(rotation)booleanstatic

    GroupD8.js:121

    Direction of main vector can be horizontal, vertical or diagonal. Some objects work with vertical directions different.

    Name Type Description
    rotation number

    The number to check.
    Returns:
    Type Description
    boolean Whether or not the direction is vertical

    PIXI.GroupD8.matrixAppendRotationInv(matrix, rotation, tx, ty)static

    GroupD8.js:176

    Helps sprite to compensate texture packer rotation.

    Name Type Description
    matrix PIXI.Matrix

    sprite world matrix
    rotation number

    The rotation factor to use.
    tx number

    sprite anchoring
    ty number

    sprite anchoring

    PIXI.GroupD8.rotate180(rotation)numberstatic

    GroupD8.js:111

    Adds 180 degrees to rotation. Commutative operation.

    Name Type Description
    rotation number

    The number to rotate.
    Returns:
    Type Description
    number rotated number