class IGameDef;
typedef std::list<std::pair<content_t, int> > GroupItems;
+typedef std::list<std::pair<std::string, std::vector<content_t> *> >
+ ContentVectorResolveList;
enum ContentParamType
{
*/
#ifndef SERVER
// 0 1 2 3 4 5
- // up down right left back front
+ // up down right left back front
TileSpec tiles[6];
// Special tiles
// - Currently used for flowing liquids
std::string mesh;
#ifndef SERVER
scene::IMesh *mesh_ptr[24];
-#endif
+#endif
float visual_scale; // Misc. scale parameter
TileDef tiledef[6];
TileDef tiledef_special[CF_SPECIAL_COUNT]; // eg. flowing liquid
u32 damage_per_second;
NodeBox node_box;
NodeBox selection_box;
+ NodeBox collision_box;
// Used for waving leaves/plants
u8 waving;
// Compatibility with old maps
/*
Methods
*/
-
+
ContentFeatures();
~ContentFeatures();
void reset();
}
};
+struct NodeResolveInfo {
+ std::string n_wanted;
+ std::string n_alt;
+ content_t c_fallback;
+ content_t *output;
+};
+
+#define NR_STATUS_FAILURE 0
+#define NR_STATUS_PENDING 1
+#define NR_STATUS_SUCCESS 2
+
+/**
+ NodeResolver
+
+ NodeResolver attempts to resolve node names to content ID integers. If the
+ node registration phase has not yet finished at the time the resolution
+ request is placed, the request is marked as pending and added to an internal
+ queue. The name resolution request is later satisfied by writing directly
+ to the output location when the node registration phase has been completed.
+
+ This is primarily intended to be used for objects registered during script
+ initialization (i.e. while nodes are being registered) that reference
+ particular nodes.
+*/
+class NodeResolver {
+public:
+ NodeResolver(INodeDefManager *ndef);
+ ~NodeResolver();
+
+ /**
+ Add a request to resolve the node n_wanted and set *content to the
+ result, or alternatively, n_alt if n_wanted is not found. If n_alt
+ cannot be found either, or has not been specified, *content is set
+ to c_fallback.
+
+ If node registration is complete, the request is finished immediately
+ and NR_STATUS_SUCCESS is returned (or NR_STATUS_FAILURE if no node can
+ be found). Otherwise, NR_STATUS_PENDING is returned and the resolution
+ request is queued.
+
+ N.B. If the memory in which content is located has been deallocated
+ before the pending request had been satisfied, cancelNode() must be
+ called.
+
+ @param n_wanted Name of node that is wanted.
+ @param n_alt Name of node in case n_wanted could not be found. Blank
+ if no alternative node is desired.
+ @param c_fallback Content ID that content is set to in case of node
+ resolution failure (should be CONTENT_AIR, CONTENT_IGNORE, etc.)
+ @param content Pointer to content_t that receives the result of the
+ node name resolution.
+ @return Status of node resolution request.
+ */
+ int addNode(const std::string &n_wanted, const std::string &n_alt,
+ content_t c_fallback, content_t *content);
+
+ /**
+ Add a request to resolve the node(s) specified by nodename.
+
+ If node registration is complete, the request is finished immediately
+ and NR_STATUS_SUCCESS is returned if at least one node is resolved; if
+ zero were resolved, NR_STATUS_FAILURE. Otherwise, NR_STATUS_PENDING is
+ returned and the resolution request is queued.
+
+ N.B. If the memory in which content_vec is located has been deallocated
+ before the pending request had been satisfied, cancelNodeList() must be
+ called.
+
+ @param nodename Name of node (or node group) to be resolved.
+ @param content_vec Pointer to content_t vector onto which the results
+ are added.
+
+ @return Status of node resolution request.
+ */
+ int addNodeList(const std::string &nodename,
+ std::vector<content_t> *content_vec);
+
+ /**
+ Removes all pending requests from the resolution queue with the output
+ address of 'content'.
+
+ @param content Location of the content ID for the request being
+ cancelled.
+ @return Number of pending requests cancelled.
+ */
+ bool cancelNode(content_t *content);
+
+ /**
+ Removes all pending requests from the resolution queue with the output
+ address of 'content_vec'.
+
+ @param content_vec Location of the content ID vector for requests being
+ cancelled.
+ @return Number of pending requests cancelled.
+ */
+ int cancelNodeList(std::vector<content_t> *content_vec);
+
+ /**
+ Carries out all pending node resolution requests. Call this when the
+ node registration phase has completed.
+
+ Internally marks node registration as complete.
+
+ @return Number of failed pending requests.
+ */
+ int resolveNodes();
+
+ /**
+ Returns the status of the node registration phase.
+
+ @return Boolean of whether the registration phase is complete.
+ */
+ bool isNodeRegFinished() { return m_is_node_registration_complete; }
+
+private:
+ INodeDefManager *m_ndef;
+ bool m_is_node_registration_complete;
+ std::list<NodeResolveInfo *> m_pending_contents;
+ ContentVectorResolveList m_pending_content_vecs;
+};
+
class INodeDefManager
{
public:
virtual void getIds(const std::string &name, std::set<content_t> &result)
const=0;
virtual const ContentFeatures& get(const std::string &name) const=0;
-
+
virtual void serialize(std::ostream &os, u16 protocol_version)=0;
+
+ virtual NodeResolver *getResolver()=0;
};
class IWritableNodeDefManager : public INodeDefManager
virtual void serialize(std::ostream &os, u16 protocol_version)=0;
virtual void deSerialize(std::istream &is)=0;
+
+ virtual NodeResolver *getResolver()=0;
};
-IWritableNodeDefManager* createNodeDefManager();
+IWritableNodeDefManager *createNodeDefManager();
#endif
projects / minetest.git / blobdiff