HDB: Add moveMap() and startMoveMap()

3 files changed, 34 insertions, 0 deletions

diff --git a/engines/hdb/hdb.cpp b/engines/hdb/hdb.cpp
index 13d44f2b03..3c1930c038 100644
--- a/engines/hdb/hdb.cpp
+++ b/engines/hdb/hdb.cpp
@@ -454,6 +454,32 @@ void HDBGame::setTargetXY(int x, int y) {
 	}
 }
 
+void HDBGame::startMoveMap(int x, int y) {
+	_dx = x;
+	_dy = y;
+}
+
+void HDBGame::moveMap(int x, int y) {
+	int	ox, oy;
+
+	g_hdb->_map->getMapXY(&ox, &oy);
+
+	ox += (_dx - x) / 8;
+	oy += (_dy - y) / 8;
+
+	if (ox < 0)
+		ox = 0;
+	else if (ox > g_hdb->_map->mapPixelWidth() - 240)
+		ox = g_hdb->_map->mapPixelWidth() - 240;
+
+	if (oy < 0)
+		oy = 0;
+	else if (oy > g_hdb->_map->mapPixelHeight() - 320)
+			oy = g_hdb->_map->mapPixelHeight() - 320;
+
+	g_hdb->_map->setMapXY(ox, oy);
+}
+
 // PLAYER is trying to use this entity
 void HDBGame::useEntity(AIEntity *e) {
 	warning("STUB: HDBGame::useEntity incomplete");
diff --git a/engines/hdb/hdb.h b/engines/hdb/hdb.h
index cb6c1f1cda..6de28097d1 100644
--- a/engines/hdb/hdb.h
+++ b/engines/hdb/hdb.h
@@ -196,6 +196,8 @@ public:
 	}
 	void changeGameState();
 	void paint();
+	void moveMap(int x, int y);	// Get Stylus Coords and Scroll
+	void startMoveMap(int x, int y);	// Start Dragging Map
 
 	void setTargetXY(int x, int y);
 	void useEntity(AIEntity *e);
diff --git a/engines/hdb/map.h b/engines/hdb/map.h
index 40191f7f4d..1822c86234 100644
--- a/engines/hdb/map.h
+++ b/engines/hdb/map.h
@@ -95,6 +95,12 @@ public:
 			return true;
 		return false;
 	}
+	int mapPixelWidth() {
+		return _width * kTileWidth;
+	}
+	int mapPixelHeight() {
+		return _height * kTileHeight;
+	}
 
 	uint32 getMapBGTileFlags(int x, int y);
 	uint32 getMapFGTileFlags(int x, int y);