// Calculates the completion percentage of given car with given completed last checkpoint.
// This method will update the given checkpoint index accordingly to the current position.
private float GetCompletePerc(CarController car, ref uint curCheckpointIndex)
{
//Already all checkpoints captured
if (curCheckpointIndex >= checkpoints.Length)
{
return(1);
}
//Calculate distance to next checkpoint
float checkPointDistance = Vector2.Distance(car.transform.position, checkpoints[curCheckpointIndex].transform.position);
//Check if checkpoint can be captured
if (checkPointDistance <= checkpoints[curCheckpointIndex].CaptureRadius)
{
curCheckpointIndex++;
car.CheckpointCaptured(); //Inform car that it captured a checkpoint
return(GetCompletePerc(car, ref curCheckpointIndex)); //Recursively check next checkpoint
}
else
{
//Return accumulated reward of last checkpoint + reward of distance to next checkpoint
return(checkpoints[curCheckpointIndex - 1].AccumulatedReward + checkpoints[curCheckpointIndex].GetRewardValue(checkPointDistance));
}
}