aboutsummaryrefslogtreecommitdiff
path: root/builtin/fstk/ui.lua
diff options
context:
space:
mode:
authorRui <rui.minetest@gmail.com>2016-08-30 04:09:03 +0000
committerest31 <MTest31@outlook.com>2016-08-30 06:17:24 +0200
commitfe497573f6e9507d24803024e2f3d06c016fe106 (patch)
treef0e0dd473b6145bfe9780030a9d7bb79c7e0e29e /builtin/fstk/ui.lua
parent6cf0ab376c9867dec7933e74c3ab063665a8f5e7 (diff)
downloadminetest-fe497573f6e9507d24803024e2f3d06c016fe106.tar.gz
minetest-fe497573f6e9507d24803024e2f3d06c016fe106.tar.bz2
minetest-fe497573f6e9507d24803024e2f3d06c016fe106.zip
Translated using Weblate (Danish)
Currently translated at 30.2% (271 of 895 strings) Don't end with '\n'.
Diffstat (limited to 'builtin/fstk/ui.lua')
0 files changed, 0 insertions, 0 deletions
generated by cgit v1.2.3 (git 2.39.1) at 2025-10-07 23:38:13 +0000
Foundation; either version 2.1 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "face_position_cache.h" #include "threading/mutex_auto_lock.h" std::unordered_map<u16, std::vector<v3s16>> FacePositionCache::cache; std::mutex FacePositionCache::cache_mutex; // Calculate the borders of a "d-radius" cube const std::vector<v3s16> &FacePositionCache::getFacePositions(u16 d) { MutexAutoLock lock(cache_mutex); std::unordered_map<u16, std::vector<v3s16>>::const_iterator it = cache.find(d); if (it != cache.end()) return it->second; return generateFacePosition(d); } const std::vector<v3s16> &FacePositionCache::generateFacePosition(u16 d) { cache[d] = std::vector<v3s16>(); std::vector<v3s16> &c = cache[d]; if (d == 0) { c.emplace_back(0,0,0); return c; } if (d == 1) { // This is an optimized sequence of coordinates. c.emplace_back(0, 1, 0); // Top c.emplace_back(0, 0, 1); // Back c.emplace_back(-1, 0, 0); // Left c.emplace_back(1, 0, 0); // Right c.emplace_back(0, 0,-1); // Front c.emplace_back(0,-1, 0); // Bottom // 6 c.emplace_back(-1, 0, 1); // Back left c.emplace_back(1, 0, 1); // Back right c.emplace_back(-1, 0,-1); // Front left c.emplace_back(1, 0,-1); // Front right c.emplace_back(-1,-1, 0); // Bottom left c.emplace_back(1,-1, 0); // Bottom right c.emplace_back(0,-1, 1); // Bottom back c.emplace_back(0,-1,-1); // Bottom front c.emplace_back(-1, 1, 0); // Top left c.emplace_back(1, 1, 0); // Top right c.emplace_back(0, 1, 1); // Top back c.emplace_back(0, 1,-1); // Top front // 18 c.emplace_back(-1, 1, 1); // Top back-left c.emplace_back(1, 1, 1); // Top back-right c.emplace_back(-1, 1,-1); // Top front-left c.emplace_back(1, 1,-1); // Top front-right c.emplace_back(-1,-1, 1); // Bottom back-left c.emplace_back(1,-1, 1); // Bottom back-right c.emplace_back(-1,-1,-1); // Bottom front-left c.emplace_back(1,-1,-1); // Bottom front-right // 26 return c; } // Take blocks in all sides, starting from y=0 and going +-y for (s16 y = 0; y <= d - 1; y++) { // Left and right side, including borders for (s16 z =- d; z <= d; z++) { c.emplace_back(d, y, z); c.emplace_back(-d, y, z); if (y != 0) { c.emplace_back(d, -y, z); c.emplace_back(-d, -y, z); } } // Back and front side, excluding borders for (s16 x = -d + 1; x <= d - 1; x++) { c.emplace_back(x, y, d); c.emplace_back(x, y, -d); if (y != 0) { c.emplace_back(x, -y, d); c.emplace_back(x, -y, -d); } } } // Take the bottom and top face with borders // -d < x < d, y = +-d, -d < z < d for (s16 x = -d; x <= d; x++) for (s16 z = -d; z <= d; z++) { c.emplace_back(x, -d, z); c.emplace_back(x, d, z); } return c; }