fiddlerwoaroof/crawl - Change KF62TOB3VZ3HRC2OROCBMK5ULPQILZR4BVJJZWQTJR4XU4F26HIQC

LOS asymmetry fix, courtesy Robert Vollment.

./crawl -test runs successfully with this fix.

Signed-off-by: Darshan Shaligram <dshaligram@users.sourceforge.net>

Created by Darshan Shaligram on September 24, 2009

KF62TOB3VZ3HRC2OROCBMK5ULPQILZR4BVJJZWQTJR4XU4F26HIQC

Dependencies

In channels

main

Change contents

Replacement in crawl-ref/source/view.cc at line 2019 [4.16817]

B:BD[3.15741] → [3.15741:15802]

    const double distdiff = (xdistance * slope - ydistance);

[3.15741]

[3.15802]

    double distdiff = (xdistance * slope - ydistance);

Insertion in crawl-ref/source/view.cc at line 2038 [4.16817]
[4.60726]
[3.16210]
```
    // move to the boundary
```

Replacement in crawl-ref/source/view.cc at line 2052 [4.16817]

B:BD[4.60875] → [3.16406:16446]

    traveldist += EPSILON_VALUE * 10.0;

[4.60875]

[4.60918]

    // and a little into the next cell, taking care
    // not to go too far
    if ( distdiff < 0.0 )
        distdiff = -distdiff;
    traveldist += std::min(EPSILON_VALUE * 10.0, 0.5 * distdiff / slope);

Replacement in crawl-ref/source/view.cc at line 2602 [4.16817]

B:BD[5.921] → [5.921:989]

        for ( int intercept = 0; intercept <= yangle; ++intercept )

[5.921]

[6.455]

        for ( int intercept = 1; intercept <= yangle; ++intercept )

Replacement in crawl-ref/source/view.cc at line 2605 [4.16817]

B:BD[5.1050] → [5.1050:1219]

            if ( intercept == 0 )
                xstart += EPSILON_VALUE / 10.0;
            if ( intercept == yangle )
                xstart -= EPSILON_VALUE / 10.0;

[5.1050]

[2.394]

            double ystart = 1;

Insertion in crawl-ref/source/view.cc at line 2607 [4.16817]
[2.395]
[2.395]
```
            // now move back just inside the cell
```

Replacement in crawl-ref/source/view.cc at line 2609 [4.16817]

∅:D[2.440] → [7.5303:5375]

B:BD[5.1276] → [7.5303:5375]

            _register_ray( xstart, 1.0 - EPSILON_VALUE / 10.0, slope );

[2.440]

[5.1347]

            xstart -= EPSILON_VALUE * xangle;
            ystart -= EPSILON_VALUE * yangle;
            _register_ray( xstart, ystart, slope );

Replacement in crawl-ref/source/view.cc at line 2614 [4.16817]

B:BD[5.1402] → [7.5376:5449]

            _register_ray( 1.0 - EPSILON_VALUE / 10.0, xstart, rslope );

[5.1402]

[3.28334]

            _register_ray( ystart, xstart, rslope );