src/bitrecord.cpp

   1 /****************************
   2 ** Tsunagari Tile Engine   **
   3 ** bitrecord.cpp           **
   4 ** Copyright 2012 OmegaSDG **
   5 ****************************/
   6
   7 #include <Gosu/Input.hpp>
   8
   9 #include "bitrecord.h"
  10 #include "window.h"
  11
  12 BitRecord BitRecord::fromGosuInput()
  13 {
  14         size_t cnt = Gosu::numButtons;
  15         Gosu::Input& in = GameWindow::instance().input();
  16
  17         BitRecord rec(cnt);
  18         for (size_t i = 0; i < cnt; i++)
  19                 rec.states[i] = in.down(Gosu::Button((unsigned)i));
  20
  21         return rec;
  22 }
  23
  24 bool BitRecord::operator[] (size_t idx)
  25 {
  26         return states[idx];
  27 }
  28
  29 std::vector<size_t> BitRecord::diff(const BitRecord& other)
  30 {
  31         std::vector<size_t> changes;
  32
  33         for (size_t i = 0; i < states.size(); i++)
  34                 if (states[i] != other.states[i])
  35                         changes.push_back(i);
  36         return changes;
  37 }
  38
  39 BitRecord::BitRecord(size_t length)
  40         : states(length)
  41 {
  42 }
  43