private void UpdateBallDirAndSpeed(float ticksToTravel)
{
if (mNumTicksLeft <= 0) // beginning of a new road
{
mNumTicksLeft = ticksToTravel;
}
// use num ticks to determine how far we have travelled
float percentTravelled = (ticksToTravel - mNumTicksLeft) / ticksToTravel;
// ball's center position should be percentTravelled along the road's entire length
float roadLength = mRoad.RoadSegmentLength(mCurrentRoadSegment);
Vector2 v = mRoad.RoadSegmentDir(mCurrentRoadSegment);
Vector2 startPos = mRoad.RoadSegmentStartPos(mCurrentRoadSegment);
Center = startPos + percentTravelled * roadLength * v;
VelocityDirection = v;
// speed will be a function of what is remaining length and remaining ticks left.
float totalLength = mRoad.RoadSegmentLength(mCurrentRoadSegment);
float travelled = (Center - startPos).Length();
float remainLength = totalLength - travelled;
Speed = remainLength / mNumTicksLeft;
}
private void UpdateBallDirAndSpeed(float ticksToTravel)
{
// Figure out how much we have travelled
Vector2 startPos = mRoad.RoadSegmentStartPos(mCurrentRoadSegment);
Vector2 dir = startPos - Center;
float travelled = dir.Length();
// Figure the current direction of the road
Vector2 v = mRoad.RoadSegmentDir(mCurrentRoadSegment);
// Our ball should be travelled along the road direction
Center = startPos + travelled * v;
VelocityDirection = v;
// speed will be a function of what is remaining length and remaining ticks left.
float totalLength = mRoad.RoadSegmentLength(mCurrentRoadSegment);
float remainLength = totalLength - travelled;
float percentLeft = remainLength / totalLength;
float ticksLeft = ticksToTravel * percentLeft;
Speed = remainLength / ticksLeft;
}