HDB: Add isSky()

It checks if the tile at a given index is a Sky
tile.

2 files changed, 15 insertions, 0 deletions

diff --git a/engines/hdb/draw-manager.cpp b/engines/hdb/draw-manager.cpp
index 56d53bbdbd..35c2b4ce4a 100644
--- a/engines/hdb/draw-manager.cpp
+++ b/engines/hdb/draw-manager.cpp
@@ -98,6 +98,20 @@ Tile *DrawMan::getTile(int index) {
 	return _tLookupArray[index].tData;
 }
 
+int DrawMan::isSky(int index) {
+	if (!index) {
+		return 0;
+	}
+
+	for (int i = 0; i < kMaxSkies; i++) {
+		if(_skyTiles[i] == index) {
+			return index + 1; // The skyTiles are indexed from 1. 0 => No Sky tile
+		}
+	}
+
+	return 0;
+}
+
 Picture::~Picture() {
 	_surface.free();
 }
diff --git a/engines/hdb/draw-manager.h b/engines/hdb/draw-manager.h
index 238d36e939..025b594c74 100644
--- a/engines/hdb/draw-manager.h
+++ b/engines/hdb/draw-manager.h
@@ -49,6 +49,7 @@ public:
 
 	bool init();
 	Tile *getTile(int index);
+	int isSky(int skyIndex);
 
 private:
 	int _numTiles;