src/cave/object/caveobject.cpp

   1 /*
   2  * Copyright (c) 2007-2013, Czirkos Zoltan http://code.google.com/p/gdash/
   3  *
   4  * Permission to use, copy, modify, and distribute this software for any
   5  * purpose with or without fee is hereby granted, provided that the above
   6  * copyright notice and this permission notice appear in all copies.
   7  *
   8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  15  */
  16
  17 #include "config.h"
  18
  19 #include <sstream>
  20 #include "cave/object/caveobject.hpp"
  21 #include "cave/helper/namevaluepair.hpp"
  22
  23 /* for factory */
  24 #include "misc/smartptr.hpp"
  25 #include "cave/object/caveobjectboundaryfill.hpp"
  26 #include "cave/object/caveobjectcopypaste.hpp"
  27 #include "cave/object/caveobjectfillrect.hpp"
  28 #include "cave/object/caveobjectfloodfill.hpp"
  29 #include "cave/object/caveobjectjoin.hpp"
  30 #include "cave/object/caveobjectline.hpp"
  31 #include "cave/object/caveobjectmaze.hpp"
  32 #include "cave/object/caveobjectpoint.hpp"
  33 #include "cave/object/caveobjectrandomfill.hpp"
  34 #include "cave/object/caveobjectraster.hpp"
  35 #include "cave/object/caveobjectrectangle.hpp"
  36
  37
  38 /// Check if the object is visible on all levels.
  39 /// @return True, if visible.
  40 bool CaveObject::is_seen_on_all() const {
  41     for (unsigned i=0; i<5; ++i)
  42         if (!seen_on[i])
  43             return false;       // if invisible on any, not seen on all.
  44     return true;
  45 }
  46
  47 /// Check if the object is invisible - not visible on any level.
  48 /// @return True, if fully invisible.
  49 bool CaveObject::is_invisible() const {
  50     for (unsigned i=0; i<5; i++)
  51         if (seen_on[i])
  52             return false;       // if seen on any, not invisible.
  53     return true;
  54 }
  55
  56 /// Enable object on all levels.
  57 void CaveObject::enable_on_all() {
  58     for (unsigned i=0; i<5; ++i)
  59         seen_on[i]=true;
  60 }
  61
  62 /// Disable object on all levels.
  63 void CaveObject::disable_on_all() {
  64     for (unsigned i=0; i<5; ++i)
  65         seen_on[i]=false;
  66 }
  67
  68 static NameValuePair<SmartPtr<CaveObject> > object_prototypes;
  69
  70 void gd_cave_objects_init() {
  71     object_prototypes.add("Point", new CavePoint);
  72     object_prototypes.add("Line", new CaveLine);
  73     object_prototypes.add("Rectangle", new CaveRectangle);
  74     object_prototypes.add("FillRect", new CaveFillRect);
  75     object_prototypes.add("Raster", new CaveRaster);
  76     object_prototypes.add("Join", new CaveJoin);
  77     object_prototypes.add("Add", new CaveJoin);
  78     object_prototypes.add("AddBackward", new CaveJoin);
  79     object_prototypes.add("BoundaryFill", new CaveBoundaryFill);
  80     object_prototypes.add("FloodFill", new CaveFloodFill);
  81     object_prototypes.add("Maze", new CaveMaze);
  82     object_prototypes.add("CopyPaste", new CaveCopyPaste);
  83     object_prototypes.add("RandomFill", new CaveRandomFill);
  84     object_prototypes.add("RandomFillC64", new CaveRandomFill);
  85 }
  86
  87
  88 CaveObject *CaveObject::create_from_bdcff(const std::string &str) {
  89     std::string::size_type f=str.find('=');
  90     if (f==std::string::npos)
  91         return NULL;
  92     std::string type=str.substr(0, f);
  93     if (!object_prototypes.has_name(type))
  94         return NULL;        // if no such object, return
  95
  96     std::istringstream is(str.substr(f+1));
  97     return object_prototypes.lookup_name(type)->clone_from_bdcff(type, is);
  98 }