NAME

Algorithm::Easing::Backdraft - Calculate eased translations between two positive whole integer values over time

SYNOPSIS

use Algorithm::Easing;
use Algorithm::Easing::Backdraft;

# this example produces traditional 'backdraft' output;

my $translation = Algorithm::Easing::Backdraft->new;

# total time for eased translation as a real positive integer value
my $d = 2.5;

# begin
my $b = 0;

# change
my $c = 240;

# time passed in seconds as a real positive integer between each frame
my $frame_time = 0.0625;

my @p = [319,0];

for(my $t = 0; $t < 2.5; $t += 0.0625) {
    $p[1] = $translation->ease_out($t,$b,$c,$d)

    # plot
    ...;
}

METHODS

ease_none usage :

Parameters : 
    Let t be time,
    Let b be begin,
    Let c be change,
    Let d be duration,
Results :
    Let p be position,
    
my $p = $obj->ease_none($t,$b,$c,$d);

This method is used for a linear translation between two positive real whole integers using a positive real integer as the parameter for time.

ease_in usage :

Parameters : 
    Let t be time,
    Let b be begin,
    Let c be change,
    Let d be duration,
Results :
    Let p be position,
    
my $p = $obj->ease_in($t,$b,$c,$d);

This method is used to ease in between two positive real whole integers using a positive real integer as the parameter for time in the fashion of a backdraft.

ease_out usage :

Parameters : 
    Let be time,
    Let b be begin,
    Let c be change,
    Let d be duration,
Results :
    Let p be position,
    
my $p = $obj->ease_out($t,$b,$c,$d);

This method is used to ease out between two positive real whole integers using a positive real integer as the parameter for time in the fashion of a backdraft.

ease_both usage :

Parameters : 
    Let t be time,
    Let b be begin,
    Let c be change,
    Let d be duration,
Results :
    Let p be position,
    
my $p = $obj->ease_both($t,$b,$c,$d);

This method is used to ease both in then out between two positive real whole integers using a positive real integer as the parameter for time in the fashion of a backdraft.

AUTHOR

Jason McVeigh, <jmcveigh@outlook.com>

COPYRIGHT AND LICENSE

Copyright 2016 by Jason McVeigh

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.