mk11 TILETEST.php

<?php

combo();

function combo()
{
    $filename='dtbykick';

    $image[ 'rgb' ] = imagecreatefrombmp( $_SERVER['DOCUMENT_ROOT']. '/Roe XAMPP Builder/tiles src data/rgb/'.$filename.'.bmp' );

    $image[ 'mask' ] = imagecreatefrombmp( $_SERVER['DOCUMENT_ROOT']. '/Roe XAMPP Builder/tiles src data/mask/'.$filename.'.bmp' );

    //imagepng( $image['combo'],'./'.$filename.'-combo.png' );

    $image [ 'combo' ] = imagecreatetruecolor( imagesx( $image[ 'rgb' ] ), imagesy( $image[ 'rgb' ] ) );

    $width = imagesx( $image[ 'combo' ] );
    $height = imagesy( $image[ 'combo' ] );

    //loop through width and height of source image
    $row=0;
    $col=0;
    while( $row < $height )
    {
        while( $col < $width )
        {

            //get color in image $image[ 'mask' ] at pixel ($col,$row)

            $pix[ 'mask' ] = imagecolorat( $image[ 'mask' ], $col, $row );

            //get color in image $image[ 'rgb' ] at pixel ($col,$row)

            $pix[ 'rgb' ] = imagecolorat( $image[ 'rgb' ], $col, $row );

            //if pixel in $image['mask'] at ($cow,$row) is white:

            if ( ( $pix[ 'rgb' ] & 0xFFFFFF ) === 0xFFFFFF )
            {
                //set pixel in $image['combo'] at ($cow,$row) as fully transparent
                imagesetpixel( $image[ 'combo' ], $col, $row, 0x7000000 );
            }
            //else
            else
            {
                //set pixel in $image['combo'] at ($cow,$row) as pixel color in $image['rgb'] at ($cow,$row) with full opacity
                imagesetpixel( $image[ 'combo' ], $col, $row, 0xF000000 | $pix[ 'rgb' ] );

            }

            if( $col === $width - 1 )
            {
                break;
            }
            $col++;
        }
        if( $row === $height - 1 )
        {
            break;
        }
        $row++;
    }

    //save resulting image as new file
    imagepng( $image[ 'combo' ], $_SERVER['DOCUMENT_ROOT']. '/Roe XAMPP Builder/tiles out data/combo/'. $filename. '.png' );
}
?>