GOB: Add ANIObject animation mode

Play the animation continuously or only once.

2 files changed, 21 insertions, 1 deletions

diff --git a/engines/gob/aniobject.cpp b/engines/gob/aniobject.cpp
index 9974874bbf..c689145b75 100644
--- a/engines/gob/aniobject.cpp
+++ b/engines/gob/aniobject.cpp
@@ -27,7 +27,8 @@
 namespace Gob {
 
 ANIObject::ANIObject(const ANIFile &ani) : _ani(&ani),
-	_visible(false), _paused(false), _x(0), _y(0), _background(0), _drawn(false) {
+	_visible(false), _paused(false), _mode(kModeContinuous),
+	_x(0), _y(0), _background(0), _drawn(false) {
 
 	setAnimation(0);
 	setPosition();
@@ -53,6 +54,10 @@ bool ANIObject::isPaused() const {
 	return _paused;
 }
 
+void ANIObject::setMode(Mode mode) {
+	_mode = mode;
+}
+
 void ANIObject::setAnimation(uint16 animation) {
 	_animation = animation;
 	_frame     = 0;
@@ -173,6 +178,11 @@ void ANIObject::advance() {
 	if (_frame == 0) {
 		_x += animation.deltaX;
 		_y += animation.deltaY;
+
+		if (_mode == kModeOnce) {
+			_paused  = true;
+			_visible = false;
+		}
 	}
 }
 
diff --git a/engines/gob/aniobject.h b/engines/gob/aniobject.h
index c5352dd2b5..dfadf79b06 100644
--- a/engines/gob/aniobject.h
+++ b/engines/gob/aniobject.h
@@ -33,6 +33,11 @@ class Surface;
 /** An ANI object, controlling an animation within an ANI file. */
 class ANIObject {
 public:
+	enum Mode {
+		kModeContinuous, ///< Play the animation continuously.
+		kModeOnce        ///< Play the animation only once.
+	};
+
 	ANIObject(const ANIFile &ani);
 	virtual ~ANIObject();
 
@@ -48,6 +53,9 @@ public:
 	/** Is the animation currently paused? */
 	bool isPaused() const;
 
+	/** Set the animation mode. */
+	void setMode(Mode mode);
+
 	/** Set the current position to the animation's default. */
 	void setPosition();
 	/** Set the current position. */
@@ -89,6 +97,8 @@ private:
 	bool _visible; ///< Is the object currently visible?
 	bool _paused;  ///< Is the animation currently paused?
 
+	Mode _mode; ///< The animation mode.
+
 	int16 _x; ///< The current X position.
 	int16 _y; ///< The current Y position.