IScrollerElementSnapProcessConstArg CreateMockConstArg()
{
IScrollerElementSnapProcessConstArg arg = Substitute.For <IScrollerElementSnapProcessConstArg>();
arg.processManager.Returns(Substitute.For <IProcessManager>());
arg.scroller.Returns(Substitute.For <IScroller>());
arg.scrollerElement.Returns(Substitute.For <IUIElement>());
arg.dimension.Returns(0);
arg.targetElementLocalPositionOnAxis.Returns(0f);
arg.initialVelocityOnAxis.Returns(0f);
arg.stopVelocity.Returns(0.05f);
return(arg);
}
public void UpdateProcess_Demo(Vector2 initialLocalPos, float targetLocalPosOnAxis, float initialVelOnAxis, int dimension, float diffThreshold, float stopVelocity)
{
IScrollerElementSnapProcessConstArg arg = CreateMockConstArg();
IUIElement scrollerElement = Substitute.For <IUIElement>();
arg.scrollerElement.Returns(scrollerElement);
scrollerElement.GetLocalPosition().Returns(initialLocalPos);
arg.dimension.Returns(dimension);
arg.targetElementLocalPositionOnAxis.Returns(targetLocalPosOnAxis);
arg.processManager.GetScrollerElementSnapSpringCoefficient().Returns(5f);
arg.initialVelocityOnAxis.Returns(initialVelOnAxis);
arg.stopVelocity.Returns(stopVelocity);
TestScrollerElementSnapProcess process = new TestScrollerElementSnapProcess(arg);
float deltaT = .02f;
bool done = false;
Vector2 passedLocalPos = Vector2.zero;
scrollerElement.SetLocalPosition(Arg.Do <Vector2>(x => passedLocalPos = x));
float prevLocalPosOnAxis = initialLocalPos[dimension];
DKUtility.DebugHelper.PrintInRed("initPos: " + initialLocalPos.ToString() + ", targetPosOnAxis: " + targetLocalPosOnAxis.ToString() + ", initVel: " + initialVelOnAxis.ToString() + ", dimension: " + dimension.ToString());
float delta;
while (!done)
{
process.UpdateProcess(deltaT);
delta = Mathf.Abs(passedLocalPos[dimension] - prevLocalPosOnAxis) / deltaT;
Debug.Log("scrollerElementLocalPos: " + passedLocalPos.ToString() + ", delta: " + delta.ToString());
if (delta <= stopVelocity)
{
done = true;
}
prevLocalPosOnAxis = passedLocalPos[dimension];
}
}
public ScrollerElementSnapProcess(
IScrollerElementSnapProcessConstArg arg
) : base(
arg
)
{
IUIElement scrollerElement = arg.scrollerElement;
int dimension = arg.dimension;
float targetElementLocalPositionOnAxis = arg.targetElementLocalPositionOnAxis;
float initialVelOnAxis = arg.initialVelocityOnAxis;
float initialElementLocalPosOnAxis = scrollerElement.GetLocalPosition()[dimension];
thisTargetElementLocalPositionOnAxis = targetElementLocalPositionOnAxis;
float springCoefficient = thisProcessManager.GetScrollerElementSnapSpringCoefficient();
thisSpringCalculator = new RealTimeCriticallyDampedSpringCalculator(initialElementLocalPosOnAxis, targetElementLocalPositionOnAxis, initialVelOnAxis, springCoefficient);
prevLocalPosOnAxis = scrollerElement.GetLocalPosition()[dimension];
thisInitVel = initialVelOnAxis;
}
public TestScrollerElementSnapProcess(IScrollerElementSnapProcessConstArg arg) : base(arg)
{
}
