void Update()
{
// reset axis
circularAxis = 0;
straightAxis = 0;
straightAxisAngle = 0;
if (Input.GetMouseButtonDown(0))
{
touchPositions = new List <Vector3>();
touchPositions.Add(Input.mousePosition);
}
// Continuous circular detection
if (Input.GetMouseButton(0) && touchPositions.Count >= 1)
{
// calculate distance between last 2 points
float distance = Vector3.Distance(Input.mousePosition, touchPositions[touchPositions.Count - 1]);
// calculate whether it's a relatively short or a long distance, so we can include more/less points
float distanceFactor = 1 - Mathf.Clamp01((Mathf.Abs(distance) - minDistanceBetweenPoints) / (maxDistanceBetweenPoitns - minDistanceBetweenPoints));
int pointSampleSize = (int)(distanceFactor * (maxPointSampleSize - minPointSampleSize) + minPointSampleSize);
Debug.Log(distanceFactor + " " + pointSampleSize);
// check if minimum distance is met
if (distance > minDistanceBetweenPoints)
{
// add current touch
touchPositions.Add(Input.mousePosition);
// make sure we have enough points to do detection
if (touchPositions.Count > 2)
{
// measure current and last angles
var currentAngle = Vector3Extension.Angle2D(touchPositions[touchPositions.Count - Mathf.Min(touchPositions.Count, (int)pointSampleSize)], touchPositions[touchPositions.Count - 1]);
var lastAngle = Vector3Extension.Angle2D(touchPositions[touchPositions.Count - Mathf.Min(touchPositions.Count, (int)pointSampleSize)], touchPositions[touchPositions.Count - 2]);
var anglediff = Mathf.DeltaAngle(currentAngle, lastAngle);
// if the difference is over the threshold
if (Mathf.Abs(anglediff) > minAngleToDetectTurn)
{
// subtract threshold !!! not sure if needed -joon
if (anglediff > 0)
{
anglediff -= minAngleToDetectTurn;
}
if (anglediff < 0)
{
anglediff += minAngleToDetectTurn;
}
// set axis, so it can be read
circularAxis = Mathf.Clamp(anglediff, -angleToDetectTurnClamp, angleToDetectTurnClamp);
// add debug GL lines
if (debugCircularEnabled)
{
if (circularAxis > 0)
{
DebugCameraLines.AddLine(touchPositions[touchPositions.Count - (int)pointSampleSize], touchPositions[touchPositions.Count - 1], Color.red);
}
else
{
DebugCameraLines.AddLine(touchPositions[touchPositions.Count - (int)pointSampleSize], touchPositions[touchPositions.Count - 1], Color.blue);
}
}
}
else
{
// set straight axis
straightAxis = distance;
straightAxisAngle = lastAngle;
//Debug.Log(straightAxis + " " + straightAxisAngle);
if (debugCircularEnabled)
{
DebugCameraLines.AddLine(touchPositions[touchPositions.Count - (int)pointSampleSize], touchPositions[touchPositions.Count - 1], Color.yellow);
}
}
if (debugCircularEnabled)
{
DebugCameraLines.AddLine(touchPositions[touchPositions.Count - (int)pointSampleSize], touchPositions[touchPositions.Count - 2], Color.white.SetA(0.4f));
}
}
}
}
}
