public static CustomPhysic getInstance()
{
if (instance == null)
{
instance = new CustomPhysic();
}
return(instance);
}
public List <TrajectoryPoint> GetTrajectory(Vector2 ballPosition, Vector2 force)
{
CustomPhysic customPhysic = CustomPhysic.getInstance();
List <TrajectoryPoint> trajectoryPoints = new List <TrajectoryPoint>();
TrajectoryPoint currentTrajectoryPoint = new TrajectoryPoint(ballPosition, force);
trajectoryPoints.Add(currentTrajectoryPoint);
for (int i = 0; i < maxSteps; i++)
{
currentTrajectoryPoint = customPhysic.GetNextTrajectoryPoint(currentTrajectoryPoint.Point, currentTrajectoryPoint.Velocity);
trajectoryPoints.Add(currentTrajectoryPoint);
}
return(trajectoryPoints);
}
public void DrawTrajectory(LineRenderer lineRenderer, List <TrajectoryPoint> points, float angleSpread)
{
lineRenderer.positionCount = points.Count;
lineRenderer.widthMultiplier = 0.5f;
for (int i = 0; i < points.Count; i++)
{
TrajectoryPoint point = points[i];
lineRenderer.SetPosition(i, point.Point);
}
if (angleSpread > 0 && points.Count > 0)
{
Vector2 supVector = Quaternion.Euler(0, 0, angleSpread) *
(Vector2.up * Vector2.Distance(points[0].Point, points[1].Point));
lineRenderer.widthMultiplier = 1f;
lineRenderer.widthCurve = AnimationCurve.Linear(0f, lineRenderer.widthMultiplier * 0f,
1f, lineRenderer.widthMultiplier * Mathf.Abs(supVector.x) / CustomPhysic.getInstance().Timestep);
}
else
{
lineRenderer.widthCurve = AnimationCurve.Constant(0f, 1f, lineRenderer.widthMultiplier * .5f);
}
}
private void Awake()
{
_customPhysic = CustomPhysic.getInstance();
}