diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/object.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/src/object.cpp b/src/object.cpp index 1ad8c6b0..08564908 100644 --- a/src/object.cpp +++ b/src/object.cpp @@ -112,22 +112,24 @@ void object::rotate(size_t, rotation new_r) } // todo rewrite using bitwise ops -point object::normalize_coords(global_coords coord, Vector2b cur_offset, Vector2i new_offset) +point object::normalize_coords(global_coords coord, Vector2b cur, Vector2i new_offset) { - auto off_tmp = Vector2i(cur_offset) + new_offset; - int off_new[2] = { off_tmp.x() % iTILE_SIZE2.x(), off_tmp.y() % iTILE_SIZE2.y() }; - int tiles[2] = { off_tmp.x() / iTILE_SIZE2.x(), off_tmp.y() / iTILE_SIZE2.y() }; - constexpr auto half_tile = iTILE_SIZE2/2; + constexpr int tile_size[2] = { iTILE_SIZE2.x(), iTILE_SIZE2.y() }; + constexpr int half_tile[2] = { tile_size[0]/2, tile_size[1]/2 }; + const int off_tmp[2] = { cur.x() + new_offset.x(), cur.y() + new_offset.y() }; + int off_new[2] = { off_tmp[0] % tile_size[0], off_tmp[1] % tile_size[1] }; + int tiles[2] = { off_tmp[0] / tile_size[0], off_tmp[1] / tile_size[1] }; + +fm_UNROLL_2 for (auto i = 0uz; i < 2; i++) { - auto sign = Math::sign(off_new[i]); - auto absval = Math::abs(off_new[i]); + auto& off = off_new[i]; + auto sign = Math::sign(off); + auto absval = Math::abs(off); if (absval > half_tile[i]) { - Vector2i v(0); - v[i] = sign; - coord += v; - off_new[i] = (iTILE_SIZE[i] - absval)*-sign; + tiles[i] += sign; + off = (tile_size[i] - absval)*-sign; } } return { |