Introduce 4 new functions:

- g_map.beginGhostMode(float opacity)
- g_map.endGhostMode()
- UIMap::movePixels(int x, int y)
- MapView::move(int x, int y)

src/client/luafunctions.cpp

@@ -138,6 +138,8 @@ void Client::registerLuaFunctions()
     g_lua.bindSingletonFunction("g_map", "getZoneColor", &Map::getZoneColor, &g_map);
     g_lua.bindSingletonFunction("g_map", "showZones", &Map::showZones, &g_map);
     g_lua.bindSingletonFunction("g_map", "showZone", &Map::showZone, &g_map);
+    g_lua.bindSingletonFunction("g_map", "beginGhostMode", &Map::beginGhostMode, &g_map);
+    g_lua.bindSingletonFunction("g_map", "endGhostMode", &Map::endGhostMode, &g_map);
 
     g_lua.registerSingletonClass("g_minimap");
     g_lua.bindSingletonFunction("g_minimap", "clean", &Minimap::clean, &g_minimap);
@@ -578,6 +580,7 @@ void Client::registerLuaFunctions()
     g_lua.registerClass<UIMap, UIWidget>();
     g_lua.bindClassStaticFunction<UIMap>("create", []{ return UIMapPtr(new UIMap); });
     g_lua.bindClassMemberFunction<UIMap>("drawSelf", &UIMap::drawSelf);
+    g_lua.bindClassMemberFunction<UIMap>("movePixels", &UIMap::movePixels);
     g_lua.bindClassMemberFunction<UIMap>("setZoom", &UIMap::setZoom);
     g_lua.bindClassMemberFunction<UIMap>("zoomIn", &UIMap::zoomIn);
     g_lua.bindClassMemberFunction<UIMap>("zoomOut", &UIMap::zoomOut);

src/client/map.cpp

@@ -365,6 +365,16 @@ void Map::setZoneColor(tileflags_t zone, const Color& color)
         m_zoneColors[zone] = color;
 }
 
+void Map::beginGhostMode(float opacity)
+{
+    g_painter->setOpacity(opacity);
+}
+
+void Map::endGhostMode()
+{
+    g_painter->resetOpacity();
+}
+
 void Map::addCreature(const CreaturePtr& creature)
 {
     m_knownCreatures[creature->getId()] = creature;

src/client/map.h

@@ -194,6 +194,9 @@ public:
     bool showZones() { return m_zoneFlags != 0; }
     bool showZone(tileflags_t zone) { return (m_zoneFlags & zone) == zone; }
 
+    void beginGhostMode(float opacity);
+    void endGhostMode();
+
     // known creature related
     void addCreature(const CreaturePtr& creature);
     CreaturePtr getCreatureById(uint32 id);

src/client/mapview.cpp

@@ -564,12 +564,20 @@ Position MapView::getPosition(const Point& point, const Size& mapSize)
     return position;
 }
 
+void MapView::move(int x, int y)
+{
+    m_moveOffset.x = x;
+    m_moveOffset.y = y;
+}
+
 Rect MapView::calcFramebufferSource(const Size& destSize)
 {
     float scaleFactor = m_tileSize/(float)Otc::TILE_PIXELS;
     Point drawOffset = ((m_drawDimension - m_visibleDimension - Size(1,1)).toPoint()/2) * m_tileSize;
     if(isFollowingCreature())
         drawOffset += m_followingCreature->getWalkOffset() * scaleFactor;
+    else if(!m_moveOffset.isNull())
+        drawOffset += m_moveOffset * scaleFactor;
 
     Size srcSize = destSize;
     Size srcVisible = m_visibleDimension * m_tileSize;
@@ -703,3 +711,5 @@ void MapView::setDrawLights(bool enable)
         m_lightView = nullptr;
     m_drawLights = enable;
 }
+
+/* vim: set ts=4 sw=4 et: */

src/client/mapview.h

@@ -108,6 +108,8 @@ public:
     void setDrawLights(bool enable);
     bool isDrawingLights() { return m_drawLights; }
 
+    void move(int x, int y);
+
     void setAnimated(bool animated) { m_animated = animated; requestVisibleTilesCacheUpdate(); }
     bool isAnimating() { return m_animated; }
 
@@ -139,6 +141,7 @@ private:
     Size m_optimizedSize;
     Point m_virtualCenterOffset;
     Point m_visibleCenterOffset;
+    Point m_moveOffset;
     Position m_customCameraPosition;
     stdext::boolean<true> m_mustUpdateVisibleTilesCache;
     stdext::boolean<true> m_mustDrawVisibleTilesCache;

src/client/uimap.cpp

@@ -70,6 +70,11 @@ void UIMap::drawSelf(Fw::DrawPane drawPane)
     }
 }
 
+void UIMap::movePixels(int x, int y)
+{
+    m_mapView->move(x, y);
+}
+
 bool UIMap::setZoom(int zoom)
 {
     m_zoom = std::min(std::max(zoom, m_maxZoomIn), m_maxZoomOut);
@@ -215,3 +220,5 @@ void UIMap::updateMapSize()
     if(!m_keepAspectRatio)
         updateVisibleDimension();
 }
+
+/* vim: set ts=4 sw=4 et: */

src/client/uimap.h

@@ -37,6 +37,7 @@ public:
 
     void drawSelf(Fw::DrawPane drawPane);
 
+    void movePixels(int x, int y);
     bool setZoom(int zoom);
     bool zoomIn();
     bool zoomOut();