/// <summary>
/// Plays the movement to follow the path.
/// </summary>
/// <param name="forward"> A boolean to make it go forward or backwards.</param>
private void Play(bool forward = true)
{
switch (speedMode) // Choose between using speed or time
{
default:
case SpeedMode.ConstantSpeed: // Make it to move at a constant speed on every node
float m = (rail.nodes[currentSeg + 1].position - rail.nodes[currentSeg].position).magnitude;
float s = (Time.deltaTime * 1 / m) * speed;
transition += (forward) ? s : -s;
break;
case SpeedMode.TimeBetweenSegments: // Make the object to reach next node in timeBetweenSegments
float move = Time.deltaTime * 1 / timeBetweenSegments;
transition += (forward) ? move : -move;
break;
}
if (transition > 1 && !loopNode) // Already reached next segment and it doesn't want to loop over same node.
{
transition = 0; // Restart the count.
currentSeg++; // Update the segment it is in.
if (currentSeg == rail.nodes.Length - 1) // Last segment reached.
{
if (isLooping) // If it is looping start again or play it backwards (pingPong).
{
if (pingPong)
{
transition = 1;
currentSeg = rail.nodes.Length - 2;
isReversed = !isReversed;
}
else
{
currentSeg = 0;
}
}
else
{
isCompleted = true;
}
}
}
else if (transition > 1 && loopNode) // Already reached next segment and want to loop over same node.
{
transition = 0; // Restart the count.
}
else if (transition < 0 && !loopNode) // Same logic that before but backwards, reached next segment and it doesn't want to loop over same node.
{
transition = 1; // Restart the count.
currentSeg--; // Update the segment it is in.
if (currentSeg == -1) // Last segment reached.
{
if (isLooping) // If it is looping start again or play it backwards (pingPong).
{
if (pingPong)
{
transition = 0;
currentSeg = 0;
isReversed = !isReversed;
}
else
{
currentSeg = rail.nodes.Length - 2;
}
}
}
}
else if (transition < 0 && loopNode) // Same logic that before but backwards, reached next segment and it wants to loop over same node.
{
transition = 1; // Restart the count
}
// Update position and orientation.
if (playMode != PlayMode.Catmull || currentSeg < rail.nodes.Length - 1)
{
transform.position = rail.PositionOnRail(currentSeg, transition, playMode);
}
if (orientationMode != OrientationMode.None)
{
transform.rotation = rail.OrientationOnRail(currentSeg, transition, orientationMode, transform, isReversed);
}
}