private ICurve GetCurve(RoadGraphNode node1, RoadGraphNode node2)
{
ICurve curve;
if (node1.Neighbors.Count == 1 && node2.Neighbors.Count == 1)
{
curve = new CubicBezierCurve(
node1.Position,
GetControlPoint(node1),
GetControlPoint(node2),
node2.Position);
}
else if (node1.Neighbors.Count == 1 && node2.Neighbors.Count > 1)
{
curve = new QuadraticBezierCurve(
node1.Position,
GetControlPoint(node1),
node2.Position);
}
else if (node2.Neighbors.Count == 1 && node1.Neighbors.Count > 1)
{
curve = new QuadraticBezierCurve(
node1.Position,
GetControlPoint(node2),
node2.Position);
}
else
{
curve = new LinearBezierCurve(node1.Position, node2.Position);
}
return(curve);
}
void LaunchRocket()
{
if (!buildingHandler.building && timePassed > timeBetweenLaunches)
{
if (rockets > 0)
{
Vector3 start = transform.position;
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
Physics.Raycast(ray, out hit);
if (hit.collider != null)
{
Vector3 end = hit.collider.transform.position;
end.y = 0;
Vector3 middle = Vector3.Lerp(start, end, 0.8f);
middle.y = 20;
curve = new QuadraticBezierCurve(start, middle, end);
Rocket rocket = Instantiate(rocketPrefab).GetComponent <Rocket>();
rocket.target = end;
rocket.curve = curve;
rocket.Launch();
timePassed = 0;
rockets -= 1;
}
}
}
}
protected QuadraticBezierCurve updatePath(QuadraticBezierCurve curve)
{
bezierPointPosition = 0f;
curve = bezierLines.NextDots(curve,
targetPosition,
GameControl.gameControl.BatBoundaries);
renewedPosition = curve.p0;
return(curve);
}
//Рассчитывает следующую точку квадратичной кривой Безье по заданным точкам
public Vector3 CalculateBezierPoint(float t, QuadraticBezierCurve curve)
{
Vector3 position = new Vector3();
position =
Mathf.Pow(1f - t, 2) * curve.p0 +
(1f - t) * 2 * t * curve.p1 +
Mathf.Pow(t, 2) * curve.p2;
return(position);
}
protected QuadraticBezierCurve createPathQuadratic(Vector3 start)
{
QuadraticBezierCurve quadraticCurve = bezierLines.CreateQuadraticLineDots(
start,
GameControl.gameControl.PlayerInstance.CurrentPosition,
GameControl.gameControl.BatBoundaries);
bezierPointPosition = 0f;
calculateMovementParameters(quadraticCurve);
return(quadraticCurve);
}
protected virtual void InitializeAttack(Vector3 start)
{
targetPosition = GameControl.gameControl.PlayerInstance.CurrentPosition;
do
{
quadraticCurve = createPathQuadratic(start);
}while(Vector3.Angle(
quadraticCurve.p1 - start,
targetPosition - start)
< 45f);
}
//Возвращает три точки, нужные для построения квадратичной кривой Безье
public QuadraticBezierCurve CreateQuadraticLineDots(Vector3 startPosition, Vector3 finishPosition, EnemyBoundaries boundaries)
{
QuadraticBezierCurve quadraticCurve = new QuadraticBezierCurve();
quadraticCurve.p0 = startPosition;
quadraticCurve.p1 = GenerationMath.RandomPositionOnCylinder(
startPosition,
Vector3.Distance(startPosition, finishPosition),
boundaries);
quadraticCurve.p2 = finishPosition;
return(quadraticCurve);
}
//Возвращает следующий сегмент квадратичной кривой Безье,
//Зависящий от предыдущего
public QuadraticBezierCurve NextDots(QuadraticBezierCurve oldSettings, Vector3 nextPosition, EnemyBoundaries boundaries)
{
QuadraticBezierCurve quadraticCurve = new QuadraticBezierCurve();
quadraticCurve.p0 = oldSettings.p2;
quadraticCurve.p2 = nextPosition;
quadraticCurve.p1 = GenerationMath.RandomPositionInCylinder(
quadraticCurve.p2,
Vector3.Distance(quadraticCurve.p0, nextPosition),
boundaries);
return(quadraticCurve);
}
//Высчитывает приблизительную длину квадратичной кривой Безье
public float ApproximateLineLength(QuadraticBezierCurve curve)
{
float length = 0f;
Vector3 point1 = curve.p0;
Vector3 point2;
for (float i = 0.05f; i < 1f; i += 0.05f)
{
point2 = CalculateBezierPoint(i, curve);
length += Vector3.Distance(point1, point2);
point1 = point2;
}
return(length);
}
private void LaunchMissile() //Function used to launch missile
{
if (Input.GetMouseButtonDown(1) && target != -1) //Ensures target is selected when mouse clicked
{
tempPath.Clear();
GameObject missile = (GameObject)GameObject.Instantiate(missilePrefab, MasterScript.systemListConstructor.systemList[system].systemObject.transform.position, Quaternion.identity);
curveBuilder = missile.GetComponent <QuadraticBezierCurve>();
curveBuilder.target = target;
tempPath.Add(missile.transform.position);
bool pathfinding = true;
Vector2 tempPos = missile.transform.position;
while (pathfinding == true)
{
tempPos = FindTrajectoryIntersections(tempPos, MasterScript.systemListConstructor.systemList[target].systemObject.transform.position);
if (tempPos == Vector2.zero)
{
tempPath.Add(MasterScript.systemListConstructor.systemList[curveBuilder.target].systemObject.transform.position);
pathfinding = false;
break;
}
else
{
tempPath.Add(tempPos);
}
}
for (int i = 0; i < tempPath.Count; ++i)
{
curveBuilder.pathToFollow.Add(new Vector3(tempPath[i].x, tempPath[i].y, 0f));
}
curveBuilder.moving = true;
}
}
/// <summary>
/// This function creates the flight path of the disc regardless
/// of whether the disc is travelling to a person or into space.
/// </summary>
/// <param name="msBetweenPoints">The number of ms between each pair of
/// adjacent points.</param>
/// <returns>The full list of points that the disc traverses</returns>
internal List<PointF> FlightPath(float msBetweenPoints)
{
QuadraticBezierCurve curve = new QuadraticBezierCurve(StartPosition(),
ControlPoint,
EndPosition());
float distPerDivision = msBetweenPoints / 1000.0f * DiscSpeed;
return curve.Points(distPerDivision).ToList();
}
/// <summary>
/// Calculates the nearest distance from the given coordinates to
/// the discs flight path.
///
/// This assumes that the disc travels a long a quadratic bezier curve to
/// get an analytic solution.
/// </summary>
/// <param name="mouseLocation"></param>
/// <returns></returns>
internal float DistFromFlightPath(PointF mouseLocation)
{
QuadraticBezierCurve curve = new QuadraticBezierCurve(StartPosition(),
ControlPoint,
EndPosition());
return curve.DistanceFromPoint(mouseLocation);
}
/// <summary>
/// Changes the type of the selected line.
/// </summary>
/// <param name="value">The value.</param>
private void ChangeLineType(object value)
{
Type type = value as Type;
if (type == null)
{
throw new ArgumentException();
}
SelectedLine selectedLine = _selectedLine;
if (selectedLine == null)
{
return;
}
ILine currLine = selectedLine.Line;
Type currLineType = currLine.GetType();
if (type == currLineType)
{
return;
}
ILine newLine;
if (type == typeof(Line))
{
newLine = new Line(currLine.Start, currLine.End);
}
else if (type == typeof(QuadraticBezierCurve))
{
if (currLineType == typeof(Line))
{
newLine = new QuadraticBezierCurve(
currLine.Start,
new LineVector((currLine.Start.Vector + currLine.End.Vector) / 2),
currLine.End);
}
else if (currLineType == typeof(CubicBezierCurve))
{
CubicBezierCurve cubic = (CubicBezierCurve)currLine;
Vector2 vec = currLine.Start.Vector + (currLine.End.Vector - currLine.Start.Vector) / 2;
newLine = new QuadraticBezierCurve(
cubic.Start,
new LineVector(vec),
cubic.End);
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
}
else if (type == typeof(CubicBezierCurve))
{
if (currLineType == typeof(Line))
{
Vector2 vec = (currLine.End.Vector - currLine.Start.Vector) / 3;
newLine = new CubicBezierCurve(
currLine.Start,
new LineVector(currLine.Start.Vector + vec),
new LineVector(currLine.Start.Vector + vec + vec),
currLine.End);
}
else if (currLineType == typeof(QuadraticBezierCurve))
{
QuadraticBezierCurve quad = (QuadraticBezierCurve)currLine;
Vector2 start = quad.Start.Vector;
Vector2 end = quad.End.Vector;
Vector2 control = quad.ControlPoint.Vector;
newLine = new CubicBezierCurve(
quad.Start,
new LineVector(start + (2f / 3f * (control - start))),
new LineVector(end + (2f / 3f * (control - end))),
quad.End);
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
Debug.Assert(newLine.GetType() == type, "newLine.GetType() == type");
selectedLine.EdgePart.Lines.Replace(currLine, newLine);
_selectedLine = new SelectedLine(
selectedLine.Tile,
selectedLine.EdgePart,
newLine,
selectedLine.LineTransform);
}
protected void calculateMovementParameters(QuadraticBezierCurve curve)
{
uniformMotion.Distance = bezierLines.ApproximateLineLength(curve);
uniformMotion.Speed = thisEnemy.Speed;
uniformMotion.GetTime();
}
private void Create()
{
RemoveThumbs();
// Create Move (M) command if this is the first token
if (!CurrentFigure.Tokens.Any())
{
CurrentFigure.Tokens.Add(
new Move(
Cache.MouseDownPoint.X - 50.0,
Cache.MouseDownPoint.Y + 50.0));
}
if (StartWithMove && !(CurrentFigure.Tokens.Last() is Move))
{
CurrentFigure.Tokens.Add(
new Move(
Cache.MouseDownPoint.X - 50.0,
Cache.MouseDownPoint.Y + 50.0));
}
// Token which will be created
Token token = null;
// Depending on command create corresponding token
if (CreateCommand == VDCanvasCommand.CreateLine)
{
token = new Line(Cache.MouseDownPoint.X + 50.0, Cache.MouseDownPoint.Y - 50.0);
}
else if (CreateCommand == VDCanvasCommand.CreateCubicCurve)
{
token = new CubicBezierCurve(
Cache.MouseDownPoint.X - 50.0,
Cache.MouseDownPoint.Y,
Cache.MouseDownPoint.X + 50.0,
Cache.MouseDownPoint.Y,
Cache.MouseDownPoint.X + 50.0,
Cache.MouseDownPoint.Y - 50.0);
}
else if (CreateCommand == VDCanvasCommand.CreateQuadraticCurve)
{
token = new QuadraticBezierCurve(
Cache.MouseDownPoint.X,
Cache.MouseDownPoint.Y,
Cache.MouseDownPoint.X + 50.0,
Cache.MouseDownPoint.Y - 50.0);
}
else if (CreateCommand == VDCanvasCommand.CreateSmoothCubicCurve)
{
token = new SmoothCubicBezierCurve(
Cache.MouseDownPoint.X,
Cache.MouseDownPoint.Y,
Cache.MouseDownPoint.X + 50.0,
Cache.MouseDownPoint.Y - 50.0);
}
else if (CreateCommand == VDCanvasCommand.CreateSmoothQuadraticCurve)
{
token = new SmoothQuadraticBezierCurve(
Cache.MouseDownPoint.X,
Cache.MouseDownPoint.Y,
Cache.MouseDownPoint.X + 50.0,
Cache.MouseDownPoint.Y - 50.0);
}
else if (CreateCommand == VDCanvasCommand.CreateClose)
{
token = new Close();
}
// Add just created token to the figure
CurrentFigure.Tokens.Add(token);
// Depending on Shift key status continue to create elements
if (Keyboard.GetKeyStates(Key.LeftShift) != KeyStates.Down)
{
Edit(token);
}
else
{
GoToCreateMode();
}
InvalidateMeasure();
}
/// <summary>
/// Draw the disc flight.
///
/// Currently simply a straight line from A to B. Could enhance this so
/// that it draws a cardinal spline instead at some point. The UI to draw
/// that is the more difficult area.
/// </summary>
/// <param name="display"></param>
/// <param name="startLocation"></param>
/// <param name="controlPoint"></param>
/// <param name="endLocation"></param>
/// <param name="converter"></param>
private void DrawDiscFlight(Graphics display,
PointF startLocation,
PointF controlPoint,
PointF endLocation,
PitchScreenCoordConverter converter)
{
Point screenCoordsStart = converter.pitchToScreenCoords(startLocation);
Point screenCoordsEnd = converter.pitchToScreenCoords(endLocation);
Point screenControlPoint = converter.pitchToScreenCoords(controlPoint);
QuadraticBezierCurve curve = new QuadraticBezierCurve(screenCoordsStart,
screenControlPoint,
screenCoordsEnd);
display.DrawBeziers(mDiscFlightPen, curve.ToCubic());
display.DrawRectangle(mDiscFlightPen,
screenControlPoint.X - 1,
screenControlPoint.Y - 1,
2, 2);
}
/// <summary>
/// Changes the type of the selected line.
/// </summary>
/// <param name="value">The value.</param>
private void ChangeLineType(object value)
{
Type type = value as Type;
if (type == null) throw new ArgumentException();
SelectedLine selectedLine = _selectedLine;
if (selectedLine == null) return;
ILine currLine = selectedLine.Line;
Type currLineType = currLine.GetType();
if (type == currLineType) return;
ILine newLine;
if (type == typeof(Line))
newLine = new Line(currLine.Start, currLine.End);
else if (type == typeof(QuadraticBezierCurve))
{
if (currLineType == typeof(Line))
{
newLine = new QuadraticBezierCurve(
currLine.Start,
new LineVector((currLine.Start.Vector + currLine.End.Vector) / 2),
currLine.End);
}
else if (currLineType == typeof(CubicBezierCurve))
{
CubicBezierCurve cubic = (CubicBezierCurve) currLine;
Vector2 vec = currLine.Start.Vector + (currLine.End.Vector - currLine.Start.Vector) / 2;
newLine = new QuadraticBezierCurve(
cubic.Start,
new LineVector(vec),
cubic.End);
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
}
else if (type == typeof(CubicBezierCurve))
{
if (currLineType == typeof(Line))
{
Vector2 vec = (currLine.End.Vector - currLine.Start.Vector) / 3;
newLine = new CubicBezierCurve(
currLine.Start,
new LineVector(currLine.Start.Vector + vec),
new LineVector(currLine.Start.Vector + vec + vec),
currLine.End);
}
else if (currLineType == typeof(QuadraticBezierCurve))
{
QuadraticBezierCurve quad = (QuadraticBezierCurve) currLine;
Vector2 start = quad.Start.Vector;
Vector2 end = quad.End.Vector;
Vector2 control = quad.ControlPoint.Vector;
newLine = new CubicBezierCurve(
quad.Start,
new LineVector(start + (2f / 3f * (control - start))),
new LineVector(end + (2f / 3f * (control - end))),
quad.End);
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
}
else
{
throw new NotSupportedException(
$"Cannot change a line of type '{currLineType.FullName}' to a line of type '{type.FullName}'.");
}
Debug.Assert(newLine.GetType() == type, "newLine.GetType() == type");
selectedLine.EdgePart.Lines.Replace(currLine, newLine);
_selectedLine = new SelectedLine(
selectedLine.Tile,
selectedLine.EdgePart,
newLine,
selectedLine.LineTransform);
}