/// <summary>Coroutine to smoothly change the shape of the mesh</summary>
/// <param name="onFinishMeshChange">Function to call once the mesh has finished changing</param>
private IEnumerator ChangeMeshCoroutine(ShapeData.ShapeType shapeType, FinishChange onFinishMeshChange)
{
changeMeshCoroutFin = false;
// Get the initial values for each of the blend shapes
float[] startBlendShapes = new float[BLEND_SHAPE_AMOUNT];
for (int i = 0; i < BLEND_SHAPE_AMOUNT; ++i)
{
startBlendShapes[i] = targetRenderers[0].GetBlendShapeWeight(i);
}
// Get index of the target blend shape
int targetBlendIndex = GetBlendIndexFromShape(shapeType);
// The amount of lerps that will be done
float t = 0;
while (t < 1)
{
// Lerp it
LerpRenderers(targetBlendIndex, startBlendShapes, t);
// Step
t += changeSpeed * Time.deltaTime;
yield return(null);
}
// Set the variables without lerping now that we are done
LerpRenderers(targetBlendIndex, startBlendShapes, 1);
changeMeshCoroutFin = true;
// Call the specified functionality after changing meshes
onFinishMeshChange?.Invoke();
yield return(null);
}
/// <summary>Starts smoothly changing the shape given</summary>
/// <param name="onFinishMeshChange">Function to call once the mesh has finished changing</param>
public void StartChangeShape(ShapeData.ShapeType shapeType, FinishChange onFinishMeshChange = null)
{
currentShapeType = shapeType;
// If there is an ongoing coroutine, stop it
if (!changeMeshCoroutFin)
{
StopCoroutine(changeMeshCorout);
}
// Start a new coroutine
changeMeshCorout = StartCoroutine(ChangeMeshCoroutine(shapeType, onFinishMeshChange));
}
