TITANIC: Implement method for rendering view contents

7 files changed, 38 insertions, 8 deletions

diff --git a/engines/titanic/core/game_object.cpp b/engines/titanic/core/game_object.cpp
index 06f2ce78af..db1e9ef3d6 100644
--- a/engines/titanic/core/game_object.cpp
+++ b/engines/titanic/core/game_object.cpp
@@ -127,4 +127,8 @@ bool CGameObject::checkPoint(const Point &pt, int v0, int v1) {
 	return false;
 }
 
+void CGameObject::draw(CScreenManager *screenManager) {
+	warning("TODO: CGameObject::draw");
+}
+
 } // End of namespace Titanic
diff --git a/engines/titanic/core/game_object.h b/engines/titanic/core/game_object.h
index 809f7b8d20..675339e926 100644
--- a/engines/titanic/core/game_object.h
+++ b/engines/titanic/core/game_object.h
@@ -73,6 +73,11 @@ public:
 	 */
 	virtual void load(SimpleFile *file);
 
+	/**
+	 * Allows the item to draw itself
+	 */
+	virtual void draw(CScreenManager *screenManager);
+
 	void fn2();
 
 	bool checkPoint(const Point &pt, int v0, int v1);
diff --git a/engines/titanic/core/node_item.cpp b/engines/titanic/core/node_item.cpp
index 22c9b9b37f..6b7d6452cb 100644
--- a/engines/titanic/core/node_item.cpp
+++ b/engines/titanic/core/node_item.cpp
@@ -24,14 +24,14 @@
 
 namespace Titanic {
 
-CNodeItem::CNodeItem() : CNamedItem(), _field24(0), _field28(0), _nodeNumber(0) {
+CNodeItem::CNodeItem() : CNamedItem(), _nodeNumber(0) {
 }
 
 void CNodeItem::save(SimpleFile *file, int indent) const {
 	file->writeNumberLine(0, indent);
 	file->writeQuotedLine("N", indent);
-	file->writeNumberLine(_field24, indent + 1);
-	file->writeNumberLine(_field28, indent + 1);
+	file->writeNumberLine(_nodePos.x, indent + 1);
+	file->writeNumberLine(_nodePos.y, indent + 1);
 
 	file->writeQuotedLine("N", indent);
 	file->writeNumberLine(_nodeNumber, indent + 1);
@@ -42,8 +42,8 @@ void CNodeItem::save(SimpleFile *file, int indent) const {
 void CNodeItem::load(SimpleFile *file) {
 	file->readNumber();
 	file->readBuffer();
-	_field24 = file->readNumber();
-	_field28 = file->readNumber();
+	_nodePos.x = file->readNumber();
+	_nodePos.y = file->readNumber();
 
 	file->readBuffer();
 	_nodeNumber = file->readNumber();
diff --git a/engines/titanic/core/node_item.h b/engines/titanic/core/node_item.h
index 4f0391ae88..32db1c1401 100644
--- a/engines/titanic/core/node_item.h
+++ b/engines/titanic/core/node_item.h
@@ -28,11 +28,9 @@
 namespace Titanic {
 
 class CNodeItem : public CNamedItem {
-protected:
-	int _field24;
-	int _field28;
 public:
 	int _nodeNumber;
+	Point _nodePos;
 public:
 	CLASSDEF
 	CNodeItem();
diff --git a/engines/titanic/core/room_item.cpp b/engines/titanic/core/room_item.cpp
index b0cefcaf74..7a6dfd968a 100644
--- a/engines/titanic/core/room_item.cpp
+++ b/engines/titanic/core/room_item.cpp
@@ -103,4 +103,16 @@ void CRoomItem::loading() {
 	// TODO
 }
 
+void CRoomItem::calcNodePosition(const Point &nodePos, double &xVal, double &yVal) const {
+	xVal = yVal = 0.0;
+	
+	if (_roomDimensionX >= 0.0 && _roomDimensionY >= 0.0) {
+		xVal = _roomRect.width() / _roomDimensionX;
+		yVal = _roomRect.height() / _roomDimensionY;
+
+		xVal = (nodePos.x - _roomRect.left) / xVal;
+		yVal = (nodePos.y - _roomRect.top) / yVal;
+	}
+}
+
 } // End of namespace Titanic
diff --git a/engines/titanic/core/room_item.h b/engines/titanic/core/room_item.h
index 7248b4aac3..9e7f553407 100644
--- a/engines/titanic/core/room_item.h
+++ b/engines/titanic/core/room_item.h
@@ -59,6 +59,11 @@ public:
 	 * Return a movie clip for the room by name
 	 */
 	CMovieClip *findClip(const CString &name) { return _clipList.findByName(name); }
+
+	/**
+	 * Calculates the positioning of a node within the overall room
+	 */
+	void calcNodePosition(const Point &nodePos, double &xVal, double &yVal) const;
 };
 
 } // End of namespace Titanic
diff --git a/engines/titanic/core/tree_item.h b/engines/titanic/core/tree_item.h
index 5669784cd7..e870ad1dc3 100644
--- a/engines/titanic/core/tree_item.h
+++ b/engines/titanic/core/tree_item.h
@@ -31,6 +31,7 @@ class CGameManager;
 class CDontSaveFileItem;
 class CNamedItem;
 class CProjectItem;
+class CScreenManager;
 
 class CTreeItem: public CMessageTarget {
 private:
@@ -120,6 +121,11 @@ public:
 	virtual int compareTo(const CString &name, int maxLen) const { return false; }
 
 	/**
+	 * Allows the item to draw itself
+	 */
+	virtual void draw(CScreenManager *screenManager) {}
+
+	/**
 	 * Gets the bounds occupied by the item
 	 */
 	virtual Rect getBounds() { return Rect(); }