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Diffstat (limited to 'src/environment.cpp')
| -rw-r--r-- | src/environment.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/environment.cpp b/src/environment.cpp index 385e5b955..fc7972b2c 100644 --- a/src/environment.cpp +++ b/src/environment.cpp @@ -364,6 +364,29 @@ ServerMap & ServerEnvironment::getServerMap() return *m_map; } +bool ServerEnvironment::line_of_sight(v3f pos1, v3f pos2, float stepsize) +{ + float distance = pos1.getDistanceFrom(pos2); + + //calculate normalized direction vector + v3f normalized_vector = v3f((pos2.X - pos1.X)/distance, + (pos2.Y - pos1.Y)/distance, + (pos2.Z - pos1.Z)/distance); + + //find out if there's a node on path between pos1 and pos2 + for (float i = 1; i < distance; i += stepsize) { + v3s16 pos = floatToInt(v3f(normalized_vector.X * i, + normalized_vector.Y * i, + normalized_vector.Z * i) +pos1,BS); + + MapNode n = getMap().getNodeNoEx(pos); + + if(n.param0 != CONTENT_AIR) { + return false; + } + } + return true; +} void ServerEnvironment::serializePlayers(const std::string &savedir) { |