draw() [2/2]

template<typename XYVisitor>

void fl::Tile2x2_u8::draw ( const XYMap & xymap, XYVisitor & visitor ) const

inline

Definition at line 70 of file tile2x2.h.

                                                            {
        for (u16 x = 0; x < 2; ++x) {
            for (u16 y = 0; y < 2; ++y) {
                u8 value = at(x, y);
                if (value > 0) {
                    int xx = mOrigin.x + x;
                    int yy = mOrigin.y + y;
                    if (xymap.has(xx, yy)) {
                        // we know index cannot be -1 because we checked has(xx, yy) above.
                        u16 ux = static_cast<u16>(xx);
                        u16 uy = static_cast<u16>(yy);
                        int index = xymap.mapToIndex(ux, uy);
                        if (index >= 0) {
                            u32 uindex = static_cast<u32>(index);
                            vec2<u16> pt(ux, uy);
                            visitor.draw(pt, uindex, value);
                        } else {
                          // Unexpected because has(xx, yy) is true above therefore
                          // index cannot be < 0. TODO: low level log this.
                        }
                    }
                }
            }
        }
    }

References at(), mOrigin, x, xymap, and y.

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