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SequenceAnimationComposite.cpp

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00001 /* ScummVM - Graphic Adventure Engine
00002  *
00003  * ScummVM is the legal property of its developers, whose names
00004  * are too numerous to list here. Please refer to the COPYRIGHT
00005  * file distributed with this source distribution.
00006  *
00007  * This program is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU General Public License
00009  * as published by the Free Software Foundation; either version 2
00010  * of the License, or (at your option) any later version.
00011  *
00012  * This program is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU General Public License
00018  * along with this program; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 // Based on code by omergilad.
00024 
00025 #include "gui/animation/SequenceAnimationComposite.h"
00026 
00027 namespace GUI {
00028 
00029 void SequenceAnimationComposite::start(long currentTime) {
00030     Animation::start(currentTime);
00031 
00032     // The first animation in the sequence should a start time equal to this sequence
00033     if (_sequence.size() >= 1)
00034         _sequence[0]->start(currentTime);
00035 
00036     // Set the index to 0
00037     _index = 0;
00038 }
00039 
00040 void SequenceAnimationComposite::addAnimation(AnimationPtr animation) {
00041     _sequence.push_back(animation);
00042 }
00043 
00044 void SequenceAnimationComposite::update(Drawable *drawable, long currentTime) {
00045     uint16 sequenceSize = _sequence.size();
00046 
00047     // Check index bounds
00048     if (_index >= sequenceSize)
00049         return;
00050 
00051     // Get the current animation in the sequence
00052     AnimationPtr anim = _sequence[_index];
00053 
00054     // Update the drawable
00055     anim->update(drawable, currentTime);
00056 
00057     // Check if the current animation is finished
00058     if (anim->isFinished()) {
00059         // Increase the index - move to the next animation
00060         ++_index;
00061 
00062         if (_index >= sequenceSize) {
00063             // Finished the sequence
00064             finishAnimation();
00065         } else {
00066             // Set the start time for the next animation
00067             _sequence[_index]->start(currentTime);
00068         }
00069     }
00070 }
00071 
00072 } // End of namespace GUI


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