git.mutantstargoat.com Git - laserbrain_demo/blob - src/exman.h

   1 #ifndef EXMAN_H_
   2 #define EXMAN_H_
   3
   4 #include <vector>
   5 #include "exhibit.h"
   6 #include "metascene.h"
   7
   8 //! argument to ExhibitSlot::attach
   9 enum ExSlotAttachMode {
  10         EXSLOT_ATTACH_PERMANENT,
  11         EXSLOT_ATTACH_TRANSIENT
  12 };
  13
  14 //! slot which can hold a single exhibit
  15 class ExhibitSlot {
  16 private:
  17         Exhibit *ex;
  18
  19 public:
  20         SceneNode node;
  21
  22         ExhibitSlot(Exhibit *ex = 0);
  23         ~ExhibitSlot();
  24
  25         void init(Exhibit *ex);
  26
  27         bool empty() const;
  28         Exhibit *get_exhibit() const;
  29
  30         bool attach_exhibit(Exhibit *ex, ExSlotAttachMode mode = EXSLOT_ATTACH_PERMANENT);
  31         bool detach_exhibit();
  32 };
  33
  34
  35 class ExhibitManager {
  36 private:
  37         std::vector<Exhibit*> items, stashed;
  38         std::vector<ExhibitSlot*> exslots;
  39         // TODO kdtree of slots for quick nearest queries
  40
  41         Scene *own_scn; // scene to manage all exhibits not taken from an existing scene
  42
  43 public:
  44         ExhibitManager();
  45         ~ExhibitManager();
  46
  47         void clear();
  48
  49         void add(Exhibit *ex);
  50         bool remove(Exhibit *ex);
  51
  52         bool load(MetaScene *mscn, const char *fname);
  53
  54         ExSelection select(const Ray &ray) const;
  55         ExSelection select(const Sphere &sph) const;
  56
  57         ExhibitSlot *nearest_empty_slot(const Vec3 &pos, float max_dist = 10) const;
  58
  59         void stash_exhibit(Exhibit *ex);
  60
  61         void update(float dt = 0.0f);
  62         void draw() const;
  63 };
  64
  65 #endif  // EXMAN_H_