public static bool HitInStride(Vector ballStart, Vector playerStart, Vector playerVelocity, double time, out Vector throwVelocity, out Vector catchLocation)
{
var diff = playerStart.NewAdded(ballStart.NewMinus());
// don't try to hit yourself in stride
if (diff.Length == 0)
{
throwVelocity = default;
catchLocation = default;
return(false);
}
catchLocation = playerStart.NewAdded(playerVelocity.NewScaled(time));
var v = HowHardToThrow(catchLocation.NewAdded(ballStart.NewMinus()).Length, time);
if (v > Constants.maxThrowPower)
{
throwVelocity = default;
catchLocation = default;
return(false);
}
throwVelocity = catchLocation.NewAdded(ballStart.NewMinus()).NewUnitized().NewScaled(v);
return(true);
}
public static bool HitInStride(Vector ballStart, Vector playerStart, Vector playerVelocity, out Vector throwVelocity, out Vector catchLocation)
{
var diff = playerStart.NewAdded(ballStart.NewMinus());
// don't try to hit yourself in stride
if (diff.Length == 0)
{
throwVelocity = default;
catchLocation = default;
return(false);
}
var speedAWay = diff.NewUnitized().Dot(playerVelocity);
var t1 = HowLongItTakesBallToGo(diff.Length, Constants.maxThrowPower);
var t2 = HowLongItTakesBallToGo(diff.Length + speedAWay * t1, Constants.maxThrowPower);
var t3 = HowLongItTakesBallToGo(diff.Length + speedAWay * t2, Constants.maxThrowPower);
if (t3 == Double.MaxValue)
{
throwVelocity = default;
catchLocation = default;
return(false);
}
catchLocation = playerStart.NewAdded(playerVelocity.NewScaled(t3));
throwVelocity = diff.NewAdded(playerVelocity.NewScaled(t3)).NewUnitized().NewScaled(Constants.maxThrowPower);
return(true);
}
// how hard do I have to throw it for a player to catch it at a given point
//public static Vector RequiredThrow(Vector playerStart, Vector ballStart, Vector target)
//{
// var playerTime = HowQuicklyCanAPlayerMove(target.NewAdded(playerStart.NewMinus()).Length);
// var speed = HowHardToThrow(target.NewAdded(ballStart.NewMinus()).Length, playerTime);
// return target.NewAdded(ballStart.NewMinus()).NewUnitized().NewScaled(speed);
//}
// assuming the player runs at max speed the whole time
// and assuming the ball doesn't have friction
public static (double, Vector) IntersectBallTime(Vector start, Vector ballStart, Vector ballVelocity, Vector palyerVelocity, double padding, bool boost = false)
{
if (ballStart.NewAdded(start.NewMinus()).Length == 0)
{
return(0, start);
}
var at = 1.0;
while (true)
{
var dissToBall = ballStart.NewAdded(start.NewMinus()).Length;
var ballAt = ballStart;
if (ballVelocity.Length > 0)
{
ballAt = ballStart.NewAdded(ballVelocity.NewUnitized().NewScaled(DistanceBallTravels(ballVelocity.Length, at)));
ballAt = new Vector(ballAt.x % (2 * FieldDimensions.Default.xMax), ballAt.y % (2 * FieldDimensions.Default.yMax));
if (ballAt.x < -FieldDimensions.Default.xMax)
{
ballAt = new Vector((-(ballAt.x + FieldDimensions.Default.xMax)), ballAt.y);
}
else if (ballAt.x < 0)
{
ballAt = new Vector(-ballAt.x, ballAt.y);
}
else if (ballAt.x > FieldDimensions.Default.xMax)
{
ballAt = new Vector((2 * FieldDimensions.Default.xMax) - ballAt.x, ballAt.y);
}
if (ballAt.y < -FieldDimensions.Default.yMax)
{
ballAt = new Vector(ballAt.x, (-(ballAt.y + FieldDimensions.Default.yMax)));
}
else if (ballAt.y < 0)
{
ballAt = new Vector(ballAt.x, -ballAt.y);
}
else if (ballAt.y > FieldDimensions.Default.yMax)
{
ballAt = new Vector(ballAt.x, (2 * FieldDimensions.Default.yMax) - ballAt.y);
}
dissToBall = ballAt.NewAdded(start.NewMinus()).Length;
}
var diff = ballAt.NewAdded(start.NewMinus());
var playerVelocityDot = diff.NewUnitized().Dot(palyerVelocity);
var playerStartSpeed = new Vector(0, 0);
if (playerVelocityDot > 0)
{
playerStartSpeed = diff.NewUnitized().NewScaled(playerVelocityDot);
}
var dissTravelled = DistancePlayerTravels(playerStartSpeed.Length, at) + ((boost ? Constants.speedLimit : 0) * at) + padding;// + HowFarCanIBoost(boost);
if (dissToBall > dissTravelled)
{
at += 1;
}
else
{
break;
}
}
//while (true)
//{
// var dissToBall = ballStart.NewAdded(start.NewMinus()).Length;
// var ballAt = ballStart;
// if (ballVelocity.Length > 0)
// {
// ballAt = ballStart.NewAdded(ballVelocity.NewUnitized().NewScaled(DistanceBallTravels(ballVelocity.Length, at)));
// ballAt = new Vector(ballAt.x % (2 * FieldDimensions.Default.xMax), ballAt.y % (2 * FieldDimensions.Default.yMax));
// if (ballAt.x < -FieldDimensions.Default.xMax)
// {
// ballAt = new Vector((-(ballAt.x + FieldDimensions.Default.xMax)), ballAt.y);
// }
// else if (ballAt.x < 0)
// {
// ballAt = new Vector(-ballAt.x, ballAt.y);
// }
// else if (ballAt.x > FieldDimensions.Default.xMax)
// {
// ballAt = new Vector((2 * FieldDimensions.Default.xMax) - ballAt.x, ballAt.y);
// }
// if (ballAt.y < -FieldDimensions.Default.yMax)
// {
// ballAt = new Vector(ballAt.x, (-(ballAt.y + FieldDimensions.Default.yMax)));
// }
// else if (ballAt.y < 0)
// {
// ballAt = new Vector(ballAt.x, -ballAt.y);
// }
// else if (ballAt.y > FieldDimensions.Default.yMax)
// {
// ballAt = new Vector(ballAt.x, (2 * FieldDimensions.Default.yMax) - ballAt.y);
// }
// dissToBall = ballAt.NewAdded(start.NewMinus()).Length;
// }
// var diff = ballAt.NewAdded(start.NewMinus());
// var playerVelocityDot = diff.NewUnitized().Dot(palyerVelocity);
// var playerStartSpeed = new Vector(0, 0);
// if (playerVelocityDot > 0)
// {
// playerStartSpeed = diff.NewUnitized().NewScaled(playerVelocityDot);
// }
// var dissTravelled = DistancePlayerTravels(playerStartSpeed.Length, at) + ((boost ? Constants.speedLimit : 0) * at) + padding;// + HowFarCanIBoost(boost);
// if (dissToBall < dissTravelled)
// {
// at -= 1;
// }
// else
// {
// break;
// }
//}
if (ballVelocity.Length == 0)
{
return(at, ballStart);
}
else
{
return(at, ballStart.NewAdded(ballVelocity.NewUnitized().NewScaled(DistanceBallTravels(ballVelocity.Length, at))));
}
}
