/// <summary>
/// Levanta la informacion de una animacion a partir del XML
/// </summary>
/// <param name="xmlString">Contenido que el XML</param>
public TgcKeyFrameAnimationData parseAnimationFromString(string xmlString)
{
XmlDocument dom = new XmlDocument();
dom.LoadXml(xmlString);
XmlElement root = dom.DocumentElement;
TgcKeyFrameAnimationData animation = new TgcKeyFrameAnimationData();
//Parsear informacion general de animation
XmlElement animationNode = (XmlElement)root.GetElementsByTagName("animation")[0];
animation.name = animationNode.Attributes["name"].InnerText;
animation.verticesCount = int.Parse(animationNode.Attributes["verticesCount"].InnerText);
animation.framesCount = int.Parse(animationNode.Attributes["framesCount"].InnerText);
animation.keyFramesCount = int.Parse(animationNode.Attributes["keyFramesCount"].InnerText);
animation.frameRate = int.Parse(animationNode.Attributes["frameRate"].InnerText);
animation.startFrame = int.Parse(animationNode.Attributes["startFrame"].InnerText);
animation.endFrame = int.Parse(animationNode.Attributes["endFrame"].InnerText);
//Parsear boundingBox, si esta
XmlNodeList boundingBoxNodes = animationNode.GetElementsByTagName("boundingBox");
if (boundingBoxNodes != null && boundingBoxNodes.Count == 1)
{
XmlNode boundingBoxNode = boundingBoxNodes[0];
animation.pMin = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["min"].InnerText);
animation.pMax = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["max"].InnerText);
}
XmlNodeList frameNodes = animationNode.GetElementsByTagName("frame");
animation.keyFrames = new TgcKeyFrameFrameData[frameNodes.Count];
int i = 0;
foreach (XmlElement frameNode in frameNodes)
{
TgcKeyFrameFrameData frame = new TgcKeyFrameFrameData();
int frameNumber = (int)TgcParserUtils.parseFloat(frameNode.Attributes["time"].InnerText);
frame.relativeTime = (float)frameNumber / animation.framesCount;
//parsear vertices
frame.verticesCoordinates = TgcParserUtils.parseFloatStream(frameNode.InnerText, animation.verticesCount);
animation.keyFrames[i++] = frame;
}
return(animation);
}
/// <summary>
/// Levanta la informacion de una animacion a partir del XML
/// </summary>
/// <param name="xmlString">Contenido que el XML</param>
public TgcKeyFrameAnimationData parseAnimationFromString(string xmlString)
{
XmlDocument dom = new XmlDocument();
dom.LoadXml(xmlString);
XmlElement root = dom.DocumentElement;
TgcKeyFrameAnimationData animation = new TgcKeyFrameAnimationData();
//Parsear informacion general de animation
XmlElement animationNode = (XmlElement)root.GetElementsByTagName("animation")[0];
animation.name = animationNode.Attributes["name"].InnerText;
animation.verticesCount = int.Parse(animationNode.Attributes["verticesCount"].InnerText);
animation.framesCount = int.Parse(animationNode.Attributes["framesCount"].InnerText);
animation.keyFramesCount = int.Parse(animationNode.Attributes["keyFramesCount"].InnerText);
animation.frameRate = int.Parse(animationNode.Attributes["frameRate"].InnerText);
animation.startFrame = int.Parse(animationNode.Attributes["startFrame"].InnerText);
animation.endFrame = int.Parse(animationNode.Attributes["endFrame"].InnerText);
//Parsear boundingBox, si esta
XmlNodeList boundingBoxNodes = animationNode.GetElementsByTagName("boundingBox");
if (boundingBoxNodes != null && boundingBoxNodes.Count == 1)
{
XmlNode boundingBoxNode = boundingBoxNodes[0];
animation.pMin = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["min"].InnerText);
animation.pMax = TgcParserUtils.parseFloat3Array(boundingBoxNode.Attributes["max"].InnerText);
}
XmlNodeList frameNodes = animationNode.GetElementsByTagName("frame");
animation.keyFrames = new TgcKeyFrameFrameData[frameNodes.Count];
int i = 0;
foreach (XmlElement frameNode in frameNodes)
{
TgcKeyFrameFrameData frame = new TgcKeyFrameFrameData();
int frameNumber = (int)TgcParserUtils.parseFloat(frameNode.Attributes["time"].InnerText);
frame.relativeTime = (float)frameNumber / animation.framesCount;
//parsear vertices
frame.verticesCoordinates = TgcParserUtils.parseFloatStream(frameNode.InnerText, animation.verticesCount);
animation.keyFrames[i++] = frame;
}
return animation;
}
/// <summary>
/// Actualiza el cuadro actual de la animacion.
/// Debe ser llamado en cada cuadro antes de render()
/// </summary>
public void updateAnimation()
{
Device device = GuiController.Instance.D3dDevice;
float elapsedTime = GuiController.Instance.ElapsedTime;
//Ver que haya transcurrido cierta cantidad de tiempo
if (elapsedTime < 0.0f)
{
return;
}
//Sumo el tiempo transcurrido
currentTime += elapsedTime;
//Se termino la animacion
if (currentTime > animationTimeLenght)
{
//Ver si hacer loop
if (playLoop)
{
currentTime = 0;
}
else
{
stopAnimation();
}
}
//La animacion continua
else
{
//TODO: controlar caso especial cuando hay solo un KeyFrame
//Tomar el frame actual.
int frameNumber = getCurrentFrame();
this.currentFrame = frameNumber;
//KeyFrames a interpolar
TgcKeyFrameFrameData keyFrame1 = currentAnimation.Data.keyFrames[frameNumber];
TgcKeyFrameFrameData keyFrame2 = currentAnimation.Data.keyFrames[frameNumber + 1];
float[] verticesFrame1 = keyFrame1.verticesCoordinates;
float[] verticesFrame2 = keyFrame2.verticesCoordinates;
//La diferencia de tiempo entre el frame actual y el siguiente.
float timeDifferenceBetweenFrames = keyFrame2.relativeTime - keyFrame1.relativeTime;
//En que posicion relativa de los dos frames actuales estamos.
float interpolationValue = ((currentTime / animationTimeLenght) - keyFrame1.relativeTime) / timeDifferenceBetweenFrames;
//Cargar array de vertices interpolados
float[] verticesFrameFinal = new float[verticesFrame1.Length];
for (int i = 0; i < verticesFrameFinal.Length; i++)
{
verticesFrameFinal[i] = (verticesFrame2[i] - verticesFrame1[i]) * interpolationValue + verticesFrame1[i];
}
//expandir array para el vertex buffer
fillVertexBufferData(verticesFrameFinal);
}
}
