added ability to get seperate information about block face obstruction

[blank.git] / src / chunk.cpp

diff --git a/src/chunk.cpp b/src/chunk.cpp
index 74ca1bcf96933274f9560cbb151e8629177eeb0c..23d5a13c260e8dfdefab8e5ec3f444a8a537967f 100644 (file)
--- a/src/chunk.cpp
+++ b/src/chunk.cpp
@@ -445,7 +445,7 @@ void Chunk::Update() {
        for (size_t i = 0; i < Size(); ++i) {
                const BlockType &type = Type(blocks[i]);
 
-               if (!type.visible || Obstructed(i)) continue;
+               if (!type.visible || Obstructed(i).All()) continue;
 
                type.FillBlockModel(buf, ToTransform(i), vtx_counter);
                size_t vtx_begin = vtx_counter;
@@ -464,18 +464,19 @@ void Chunk::Update() {
        dirty = false;
 }
 
-bool Chunk::Obstructed(int idx) const {
+Block::FaceSet Chunk::Obstructed(int idx) const {
        Chunk::Pos pos(ToPos(idx));
+       Block::FaceSet result;
 
        for (int f = 0; f < Block::FACE_COUNT; ++f) {
                Block::Face face = Block::Face(f);
                BlockLookup next(const_cast<Chunk *>(this), pos, face);
-               if (!next || !next.GetType().FaceFilled(next.GetBlock(), Block::Opposite(face))) {
-                       return false;
+               if (next && next.GetType().FaceFilled(next.GetBlock(), Block::Opposite(face))) {
+                       result.Set(face);
                }
        }
 
-       return true;
+       return result;
 }
 
 glm::mat4 Chunk::ToTransform(int idx) const {