void Start()
{
Vector2 positionWorldSpace = transform.position;
clipPosition = positionWorldSpace - terrain.GetPositionOffset();
terrain.ExecuteClip(this);
}
void UpdateTouch()
{
if (TouchUtility.TouchCount > 0)
{
Touch touch = TouchUtility.GetTouch(0);
Vector2 touchPosition = touch.position;
touchPhase = touch.phase;
if (touch.phase == TouchPhase.Began)
{
Vector2 XOYPlaneLocation = mainCamera.ScreenToWorldPoint(new Vector3(touchPosition.x, touchPosition.y, -cameraZPos));
currentTouchPoint = XOYPlaneLocation - terrain.GetPositionOffset();
BuildVertices(currentTouchPoint);
terrain.ExecuteClip(this);
previousTouchPoint = currentTouchPoint;
}
else if (touch.phase == TouchPhase.Moved)
{
Vector2 XOYPlaneLocation = mainCamera.ScreenToWorldPoint(new Vector3(touchPosition.x, touchPosition.y, -cameraZPos));
currentTouchPoint = XOYPlaneLocation - terrain.GetPositionOffset();
if ((currentTouchPoint - previousTouchPoint).sqrMagnitude <= touchMoveDistance * touchMoveDistance)
{
return;
}
BuildVertices(previousTouchPoint, currentTouchPoint);
terrain.ExecuteClip(this);
previousTouchPoint = currentTouchPoint;
}
}
}