src/game/items/item_lantern.cpp

   1 #ifdef HEADER_PHASE
   2 ITEM(lantern, item)
   3 {
   4  public:
   5   virtual void SignalSquarePositionChange(int);
   6   virtual truth AllowAlphaEverywhere() const { return true; }
   7   virtual int GetSpecialFlags() const;
   8   virtual truth IsLanternOnWall() const { return GetSquarePosition() != CENTER; }
   9  protected:
  10   virtual int GetClassAnimationFrames() const { return !IsBroken() ? 32 : 1; }
  11   virtual col16 GetMaterialColorA(int) const;
  12   virtual col16 GetMaterialColorB(int) const;
  13   virtual col16 GetMaterialColorC(int) const;
  14   virtual col16 GetMaterialColorD(int) const;
  15   virtual alpha GetAlphaA(int) const { return 255; }
  16   virtual alpha GetAlphaB(int) const;
  17   virtual alpha GetAlphaC(int) const;
  18   virtual alpha GetAlphaD(int) const;
  19   virtual v2 GetBitmapPos(int) const;
  20 };
  21
  22
  23 #else
  24
  25
  26
  27 col16 lantern::GetMaterialColorA(int) const { return MakeRGB16(255, 255, 240); }
  28
  29
  30
  31 col16 lantern::GetMaterialColorB(int) const { return MakeRGB16(255, 255, 100); }
  32
  33
  34
  35 col16 lantern::GetMaterialColorC(int) const { return MakeRGB16(255, 255, 100); }
  36
  37
  38
  39 col16 lantern::GetMaterialColorD(int) const { return MakeRGB16(255, 255, 100); }
  40
  41
  42
  43 void lantern::SignalSquarePositionChange(int SquarePosition)
  44 {
  45   item::SignalSquarePositionChange(SquarePosition);
  46   UpdatePictures();
  47 }
  48
  49
  50
  51 int lantern::GetSpecialFlags() const
  52 {
  53   switch(GetSquarePosition())
  54   {
  55    case LEFT: return ROTATE|MIRROR;
  56    case DOWN: return FLIP;
  57    case UP: return 0;
  58    case RIGHT: return ROTATE;
  59   }
  60
  61   return 0;
  62 }
  63
  64
  65
  66 alpha lantern::GetAlphaB(int Frame) const
  67 {
  68   Frame &= 31;
  69   return (Frame * (31 - Frame) >> 1);
  70 }
  71
  72
  73
  74 alpha lantern::GetAlphaC(int Frame) const
  75 {
  76   Frame &= 31;
  77   return (Frame * (31 - Frame) >> 2);
  78 }
  79
  80
  81
  82 alpha lantern::GetAlphaD(int Frame) const
  83 {
  84   Frame &= 31;
  85   return (Frame * (31 - Frame) >> 3);
  86 }
  87
  88
  89
  90 v2 lantern::GetBitmapPos(int Frame) const
  91 {
  92   return GetSquarePosition() == CENTER
  93             ? item::GetBitmapPos(Frame)
  94             : item::GetWallBitmapPos(Frame);
  95 }
  96 #endif