/// <summary>
/// this function actually moves models on their associated targe using 'MoveModelOnTarget' function.
/// </summary>
public void UpdateModelStatus()
{
foreach (GameObject model in modelList)
{
NCARModelInfo modelInfo = model.GetComponent <NCARModelInfo>();
//if the model is combined to any other targets then its default target
if (modelInfo.isModelCombined == true)
{
//and if the target has been changed
if (modelInfo.previousTarget != modelInfo.currentTarget)
{
//need this to exclude context model.
if (modelInfo.GetComponent <NCARTouchController>() != null)
{
modelInfo.GetComponent <NCARTouchController>().ResetAnimation();
}
MoveModelOnTarget(modelInfo, modelInfo.currentTarget);
}
}
//if model is not combined to any other target
else if (modelInfo.isModelCombined == false)
{
//and if the model does have the default target && target has been changed.
if (modelInfo.defaultTarget != null && modelInfo.defaultTarget != modelInfo.currentTarget)
{
//Move the model on its default taret
MoveModelOnTarget(modelInfo, model.GetComponent <NCARModelInfo>().defaultTarget);
}
// and if the model does not have the default target associated && target has been changed.
if (modelInfo.defaultTarget == null && modelInfo.defaultTarget != modelInfo.currentTarget)
{
model.transform.SetParent(goModelList.transform);
modelInfo.resetPosToDefault();
}
// set the target to its default
modelInfo.currentTarget = modelInfo.defaultTarget;
}
if (modelInfo.currentTarget != null && modelInfo.currentTarget.GetComponent <NCARTrackableEventHandler>().IsTracked != true)
{
modelInfo.HideModel();
}
//set the preious target to the current one.
modelInfo.previousTarget = modelInfo.currentTarget;
//reset the combination target to false;
model.GetComponent <NCARModelInfo>().isModelCombined = false;
}
}
// this function calcuates the initial position of the model in relation to the target's local space.
// it assuems that the target's transform is in world coordination.
public Vector3 CalcInitialLocalPosOfModelToTarget(NCARModelInfo modelInfo, global::NCARTargetInfo targetInfo)
{
//this part is inverse of local to global (inverse function of TransformPoint)
Quaternion rotTargetInit = targetInfo.rotTargetInit;
Vector3 scaleTargetInit = targetInfo.scaleTargetInit;
Vector3 posTargetInit = targetInfo.posTargetInit;
Vector3 posModelInit = modelInfo.posInit;
Vector3 t = Quaternion.Inverse(rotTargetInit) * (posModelInit - posTargetInit);
t = Vector3.Scale(new Vector3(1 / scaleTargetInit.x, 1 / scaleTargetInit.y, 1 / scaleTargetInit.z), t);
return(t);
}
//based on the function above, this function moves the model onto the target setting it as the model's parent
public void MoveModelOnTarget(NCARModelInfo modelInfo, global::NCARTargetInfo targetInfo)
{
Transform modelTransfrom = modelInfo.transform;
Vector3 initLocal = CalcInitialLocalPosOfModelToTarget(modelInfo, targetInfo);
modelTransfrom.position = targetInfo.transform.TransformPoint(initLocal);
modelTransfrom.rotation = (modelInfo.rotInit * targetInfo.transform.rotation) * Quaternion.Inverse(targetInfo.rotTargetInit);
modelTransfrom.SetParent(targetInfo.transform);
if (modelInfo.GetComponent <NCARTouchController>() != null)
{
modelInfo.GetComponent <NCARTouchController>().setInitialLocalPosition();
}
modelInfo.currentTarget = targetInfo;
//show model in case it was hidden;
modelInfo.ShowModel();
}
/// <summary>
/// This function changes the current target of ModelInfo Class and set a flag to see if the model is combined to any other targets other than its default target
/// </summary>
/// <param name="modelInfo">Model info.</param>
/// <param name="targetInfo">Target info.</param>
public void ChangeModelTarget(NCARModelInfo modelInfo, NCARTargetInfo targetInfo)
{
modelInfo.currentTarget = targetInfo;
modelInfo.isModelCombined = true;
}