Added support for labels and items that are hiden by fog...

...(patch #1101 by broodkiller)

changelog

@@ -42,6 +42,7 @@ Version 1.5.3+svn:
    * Fixed linewrapping with not to wrap markups (bug #11946 and bug #11945)
    * fix bug where max_experience of stored units was not the true max when
      playing with under 100% exp. settings
+   * Added support for labels and items that are hiden by fog (patch #1101)
    * Made it possible to use another color palette as second parameter in
      RC(A=B) image path function by using '=' instead of '>' as parameter
      separator; this allows simple color replacement that RC(A>B) did not

data/core/about.cfg

@@ -722,6 +722,9 @@
     [/entry]
     [entry]
         name = "Jan Zvánovec (jaz)"
+    [/entry]
+	[entry]
+        name = "Jacek Kominek (BroodKiller)"
     [/entry]
     [entry]
         name = "Jeff Breidenbach (jab)"

src/actions.cpp

@@ -2134,6 +2134,7 @@ bool clear_shroud(game_display& disp, const gamemap& map,
 		recalculate_fog(map,units,teams,team);
 	}
 
+    disp.labels().recalculate_labels();
 	disp.labels().recalculate_shroud();
 
 	return result;

src/game_display.cpp

@@ -325,6 +325,7 @@ void game_display::draw_hex(const gamemap::location& loc)
 {
 	const bool on_map = map_.on_board(loc);
 	const bool is_shrouded = shrouded(loc);
+	const bool is_fogged = fogged(loc);
 	int xpos = get_location_x(loc);
 	int ypos = get_location_y(loc);
 	int drawing_order = gamemap::get_drawing_order(loc);
@@ -338,8 +339,9 @@ void game_display::draw_hex(const gamemap::location& loc)
 		typedef overlay_map::const_iterator Itor;
 		std::pair<Itor,Itor> overlays = overlays_.equal_range(loc);
 		for( ; overlays.first != overlays.second; ++overlays.first) {
-			if (overlays.first->second.team_name == "" ||
+			if ((overlays.first->second.team_name == "" ||
 			overlays.first->second.team_name.find(teams_[playing_team()].team_name()) != std::string::npos)
+			&& !(is_fogged && overlays.first->second.fogged))
 			{
 				drawing_buffer_add(LAYER_TERRAIN_BG, drawing_order, tblit(xpos, ypos,
 					image::get_image(overlays.first->second.image,image_type)));
@@ -966,12 +968,12 @@ void game_display::clear_attack_indicator()
 	set_attack_indicator(gamemap::location::null_location, gamemap::location::null_location);
 }
 
-void game_display::add_overlay(const gamemap::location& loc, const std::string& img, const std::string& halo,const std::string& team_name)
+void game_display::add_overlay(const gamemap::location& loc, const std::string& img, const std::string& halo,const std::string& team_name,const std::string& fogged)
 {
 	const int halo_handle = halo::add(get_location_x(loc) + hex_size() / 2,
 			get_location_y(loc) + hex_size() / 2, halo, loc);
 
-	const overlay item(img, halo, halo_handle, team_name);
+	const overlay item(img, halo, halo_handle, team_name, utils::string_bool(fogged,true));
 	overlays_.insert(overlay_map::value_type(loc,item));
 }
 
@@ -1015,6 +1017,7 @@ void game_display::write_overlays(config& cfg) const
 		item["image"] = i->second.image;
 		item["halo"] = i->second.halo;
 		item["team_name"] = i->second.team_name;
+		item["fogged"] = i->second.fogged ? "yes" : "no";
 	}
 }
 

src/game_display.hpp

@@ -171,7 +171,7 @@ public:
 	//! Functions to add and remove overlays from locations.
 	//! An overlay is an image that is displayed on top of the tile.
 	//! One tile may have multiple overlays.
-	void add_overlay(const gamemap::location& loc, const std::string& image, const std::string& halo="", const std::string& team_name="");
+	void add_overlay(const gamemap::location& loc, const std::string& image, const std::string& halo="", const std::string& team_name="",const std::string& fogged="yes");
 	//! remove_overlay will remove all overlays on a tile.
 	void remove_overlay(const gamemap::location& loc);
 	//! remove_single_overlay will remove a single overlay from a tile
@@ -281,12 +281,13 @@ private:
 
 	struct overlay {
 		overlay(const std::string& img, const std::string& halo_img,
-		        int handle, const std::string& overlay_team_name) : image(img), halo(halo_img),
-				team_name(overlay_team_name), halo_handle(handle) {}
+		        int handle, const std::string& overlay_team_name, const bool can_be_fogged) : image(img), halo(halo_img),
+				team_name(overlay_team_name), halo_handle(handle) , fogged(can_be_fogged){}
 		std::string image;
 		std::string halo;
 		std::string team_name;
 		int halo_handle;
+		bool fogged;
 	};
 
 	typedef std::multimap<gamemap::location,overlay> overlay_map;

src/game_events.cpp

@@ -1577,9 +1577,10 @@ namespace {
 		std::string img = cfg["image"];
 		std::string halo = cfg["halo"];
 		std::string team_name = cfg["team_name"];
+		std::string fogged = cfg["fogged"];
 		assert(state_of_game != NULL);
 		if(!img.empty() || !halo.empty()) {
-			(screen)->add_overlay(loc, img, halo, team_name);
+			(screen)->add_overlay(loc, img, halo, team_name, fogged);
 			(screen)->invalidate(loc);
 			(screen)->draw();
 		}

src/map_label.cpp

@@ -360,6 +360,7 @@ void terrain_label::read(const config& cfg, const variable_set *variables)
 
 	text_      = cfg["text"];
 	team_name_ = cfg["team_name"];
+	fogged_ = utils::string_bool(cfg["fogged"],true);
 
 	if (variables)
 	{
@@ -391,7 +392,7 @@ void terrain_label::write(config& cfg) const
 	cfg["text"] = text();
 	cfg["team_name"] = (this->team_name());
 	cfg["colour"] = cfg_colour();
-
+	cfg["fogged"] = fogged() ? "yes" : "no";
 }
 
 const std::string& terrain_label::text() const
@@ -404,6 +405,11 @@ const std::string& terrain_label::team_name() const
 	return team_name_;
 }
 
+bool terrain_label::fogged() const
+{
+	return fogged_;
+}
+
 const gamemap::location& terrain_label::location() const
 {
 	return loc_;
@@ -502,7 +508,7 @@ void terrain_label::draw()
 bool terrain_label::visible() const
 {
 	return  (parent_->team_name() == team_name_
-			|| (team_name_.empty() && parent_->visible_global_label(loc_)));
+			|| (team_name_.empty() && parent_->visible_global_label(loc_)) && !(parent_->disp().fogged(loc_) && fogged()));
 }
 
 void terrain_label::check_text_length()

src/map_label.hpp

@@ -109,6 +109,7 @@ public:
 
 	const std::string& text() const;
 	const std::string& team_name() const;
+	bool fogged() const;
 	const gamemap::location& location() const;
 	const SDL_Colour& colour() const;
 
@@ -136,6 +137,7 @@ private:
 
 	std::string text_;
 	std::string team_name_;
+	bool fogged_;
 	SDL_Color	colour_;
 
 	const map_labels* parent_;

src/playsingle_controller.cpp

@@ -256,7 +256,7 @@ LEVEL_RESULT playsingle_controller::play_scenario(const std::vector<config*>& st
 	// Find a list of 'items' (i.e. overlays) on the level, and add them
 	const config::child_list& overlays = level_.get_children("item");
 	for(config::child_list::const_iterator overlay = overlays.begin(); overlay != overlays.end(); ++overlay) {
-		gui_->add_overlay(gamemap::location(**overlay, game_events::get_state_of_game()), (**overlay)["image"], (**overlay)["halo"], (**overlay)["team_name"]);
+		gui_->add_overlay(gamemap::location(**overlay, game_events::get_state_of_game()), (**overlay)["image"], (**overlay)["halo"], (**overlay)["team_name"], (**overlay)["fogged"]);
 	}
 
 	victory_conditions::set_victory_when_enemies_defeated(