+const Area &Map::AreaAt(const Vector<int> &offset) const {
+ if (numAreas > 0) {
+ Vector<int> coords(TileCoordinates(offset));
+ Vector<int> areaOffset(coords / areas[0].Size());
+ int areaIndex(areaOffset.Index(width));
+ 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(TileCoordinates(offset) % area.Size());
+ return area.TileAt(tileOffset);
+}
+
+Trigger *Map::TriggerAt(const geometry::Vector<int> &offset) {
+ // TODO: add support for multiple triggers on a tile?
+ Vector<int> coords(TileCoordinates(offset));
+ for (Trigger *i(triggers); i != triggers + numTriggers; ++i) {
+ if (i->TilePosition() == coords) {
+ return i;
+ }
+ }
+ return 0;
+}
+
+Vector<int> Map::TileCoordinates(const Vector<int> &position) const {
+ return position / tileset->Size();
+}
+
+