/// <summary>
/// note that currently only the height, along the y-axis is scalable. This can
/// be more generalized using a serialized boolean/enum field in this script
/// </summary>
public void PerformScalingUpdateUsingManipulation(Vector3 cumulativeDelta)
{
// we should make this one use manipulation gesture rather than navigation
Vector3 moveVector = Vector3.zero;
Vector3 cumulativeDeltaInCameraSpace = Camera.main.transform.InverseTransformPoint(cumulativeDelta);
moveVector = cumulativeDeltaInCameraSpace - previousManipulationPosition;
previousManipulationPosition = cumulativeDeltaInCameraSpace;
float currentYScale = transform.localScale.y;
float scalingFactor = moveVector.y * ScalingSensitivity;
bool isExceedingLimit;
if (currentYScale + scalingFactor <= minimumScale)
{
isExceedingLimit = true;
}
else
{
transform.localScale += new Vector3(0, scalingFactor, 0);
isExceedingLimit = false;
}
OnScalingUpdated.Invoke(isExceedingLimit);
}
public void PerformScalingUpdateUsingNavigation(Vector3 normalizedOffset)
{
float yMovement = normalizedOffset.y;
float scalingFactor = yMovement * ScalingSensitivity;
float currentScale = transform.localScale.x;
bool isExceedingLimit = true;
if (currentScale + scalingFactor > maximumScale)
{
transform.localScale = Vector3.one * maximumScale;
}
else if (currentScale + scalingFactor < minimumScale)
{
transform.localScale = Vector3.one * minimumScale;
}
else
{
isExceedingLimit = false;
transform.localScale += new Vector3(scalingFactor, scalingFactor, scalingFactor);
}
OnScalingUpdated.Invoke(isExceedingLimit);
}