GUI: Added animation classes

1 files changed, 72 insertions, 0 deletions

diff --git a/gui/animation/SequenceAnimationComposite.cpp b/gui/animation/SequenceAnimationComposite.cpp
new file mode 100644
index 0000000000..9ecfeebc8c
--- /dev/null
+++ b/gui/animation/SequenceAnimationComposite.cpp
@@ -0,0 +1,72 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+// Based on code by omergilad.
+
+#include "gui/animation/SequenceAnimationComposite.h"
+
+namespace GUI {
+
+void SequenceAnimationComposite::start(long currentTime) {
+	Animation::start(currentTime);
+
+	// The first animation in the sequence should a start time equal to this sequence
+	if (_sequence.size() >= 1)
+		_sequence[0]->start(currentTime);
+
+	// Set the index to 0
+	_index = 0;
+}
+
+void SequenceAnimationComposite::addAnimation(AnimationPtr animation) {
+	_sequence.push_back(animation);
+}
+
+void SequenceAnimationComposite::update(Drawable *drawable, long currentTime) {
+	uint16 sequenceSize = _sequence.size();
+
+	// Check index bounds
+	if (_index >= sequenceSize)
+		return;
+
+	// Get the current animation in the sequence
+	AnimationPtr anim = _sequence[_index];
+
+	// Update the drawable
+	anim->update(drawable, currentTime);
+
+	// Check if the current animation is finished
+	if (anim->isFinished()) {
+		// Increase the index - move to the next animation
+		++_index;
+
+		if (_index >= sequenceSize) {
+			// Finished the sequence
+			finishAnimation();
+		} else {
+			// Set the start time for the next animation
+			_sequence[_index]->start(currentTime);
+		}
+	}
+}
+
+} // End of namespace GUI