trigger handling in map state

[l2e.git] / src / map / Map.cpp

diff --git a/src/map/Map.cpp b/src/map/Map.cpp
index 450c00463ab7d3aa28ae90fcafd067f3620d833f..7712a024838ca5a7e1719300db70af327bc8164e 100644 (file)
--- a/src/map/Map.cpp
+++ b/src/map/Map.cpp
@@ -8,8 +8,11 @@
 #include "Map.h"
 
 #include "Area.h"
+#include "Trigger.h"
 #include "../graphics/Sprite.h"
 
+#include <stdexcept>
+
 using geometry::Vector;
 
 namespace map {
@@ -18,11 +21,43 @@ Map::Map()
 : tileset(0)
 , areas(0)
 , numAreas(0)
+, triggers(0)
+, numTriggers(0)
 , width(0) {
 
 }
 
 
+const Area &Map::AreaAt(const Vector<int> &offset) const {
+       if (numAreas > 0) {
+               Vector<int> tileOffset(offset.X() / tileset->Width(), offset.Y() / tileset->Height());
+               Vector<int> areaOffset(tileOffset.X() / areas[0].Width(), tileOffset.Y() / areas[0].Height());
+               int areaIndex(areaOffset.Y() * width + areaOffset.X());
+               if (areaIndex < numAreas) {
+                       return areas[areaIndex];
+               }
+       }
+       throw std::out_of_range("area offset out of bounds");
+}
+
+const Tile &Map::TileAt(const Vector<int> &offset) const {
+       const Area &area(AreaAt(offset));
+       Vector<int> tileOffset((offset.X() / tileset->Width()) % area.Width(), (offset.Y() / tileset->Height()) % area.Height());
+       return area.TileAt(tileOffset);
+}
+
+Trigger *Map::TriggerAt(const geometry::Vector<int> &offset) {
+       // TODO: add support for multiple triggers on a tile?
+       Vector<int> tilePosition(offset.X() / tileset->Width(), offset.Y() / tileset->Height());
+       for (Trigger *i(triggers); i != triggers + numTriggers; ++i) {
+               if (i->TilePosition() == tilePosition) {
+                       return i;
+               }
+       }
+       return 0;
+}
+
+
 void Map::Render(SDL_Surface *dest, const Vector<int> &inOffset) const {
        // TODO: skip invisible areas
        for (int i(0); i < numAreas; ++i) {