per block type "gravity"

[blank.git] / src / world / Chunk.hpp

diff --git a/src/world/Chunk.hpp b/src/world/Chunk.hpp
index d0dcf9404219ba063f91fb9b2e5dced933df40e9..7eceb980cb62d6c66918ae9b3eb7fa587416c2c3 100644 (file)
--- a/src/world/Chunk.hpp
+++ b/src/world/Chunk.hpp
@@ -6,6 +6,7 @@
 #include "../geometry/Location.hpp"
 #include "../geometry/primitive.hpp"
 
+#include <set>
 #include <vector>
 #include <glm/glm.hpp>
 #include <glm/gtx/transform.hpp>
@@ -132,6 +133,9 @@ public:
 
        float GetVertexLight(const RoughLocation::Fine &, const BlockMesh::Position &, const EntityMesh::Normal &) const noexcept;
 
+       /// get gravity for one unit mass at given point
+       glm::vec3 GravityAt(const ExactLocation &) const noexcept;
+
        bool Intersection(
                const Ray &ray,
                const ExactLocation::Coarse &reference,
@@ -175,6 +179,10 @@ public:
        bool Lighted() const noexcept { return lighted; }
        void ScanLights();
 
+       /// check for active blocks, should be called after
+       /// block data was modified by means other than SetBlock()
+       void ScanActive();
+
        void Ref() noexcept { ++ref_count; }
        void UnRef() noexcept { --ref_count; }
        bool Referenced() const noexcept { return ref_count > 0; }
@@ -192,6 +200,8 @@ private:
        const BlockTypeRegistry *types;
        Chunk *neighbor[Block::FACE_COUNT];
 
+       std::set<int> gravity;
+
        Block blocks[size];
        unsigned char light[size];
        bool generated;