public BallsModel.State getActualState(double time)
{
bool currentStateIsOutdated()
{
if (statesBuffer.Count == 0)
{
calcNextState();
}
if (solved)
{
return(false);
}
double currentEndTime = statesBuffer.First().timeStamp;
return(time > currentEndTime);
}
bool currentStateOutdated = currentStateIsOutdated();
if (solved)
{
return(currentState);
}
if (!currentStateOutdated)
{
return(currentState);
}
do
{
if (statesBuffer.Count == 0)
{
currentState = calcNextState();
}
else
{
currentState = statesBuffer[0];
statesBuffer = statesBuffer.Skip(1).ToList();
}
} while (!solved && currentStateIsOutdated());
return(currentState);
}
public BallsModel.State calcNextState()
{
BallsModel.State latestState =
statesBuffer.Count > 0 ? statesBuffer.Last() : currentState;
FSharpOption <BallsModel.State> state =
latestState.nextState(bounceGate);
solved = FSharpOption <BallsModel.State> .get_IsNone(state);
if (!solved)
{
statesBuffer.Add(state.Value);
return(state.Value);
}
else
{
return(latestState);
}
}
public void addWall(BallsModel.Wall wall)
{
BallsModel.State newState = statesBuffer.Last().addWall(wall);
statesBuffer.Add(newState);
}
public Room(BallsModel.State initialState, double bounceGate = 0.1)
{
currentState = initialState;
this.bounceGate = bounceGate;
}
private void Form1_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
float scaleGraphics = this.scaleGraphics * Math.Min(ClientSize.Width, ClientSize.Height) / 1000f;
scaleFinal = scaleGraphics * scaleModel;
//float translateX = this.translateX + ClientSize.Width / 2;
//float translateY = this.translateY + ClientSize.Height / 2;
float translateX = this.translateX;
float translateY = this.translateY;
// scale to 10 and translate to the center
g.TranslateTransform(translateX, translateY);
g.ScaleTransform(scaleGraphics, scaleGraphics);
// draw axises
//Pen axisPen = new Pen(Color.Black, 1f);
//g.DrawLine(axisPen, -ClientSize.Width, 0, ClientSize.Width, 0);
//g.DrawLine(axisPen, 0, -ClientSize.Height, 0, ClientSize.Height);
// draw temp polygon
if (newWallBuffer.Count > 1)
{
Pen newWallPen = new Pen(Color.DarkCyan, 2);
PointF[] points =
newWallBuffer
.Select(p => new PointF((float)p.x * scaleModel, (float)p.y * scaleModel))
.ToArray();
HatchBrush hBrush = new HatchBrush(
HatchStyle.ForwardDiagonal,
Color.White,
Color.DarkCyan
);
g.FillPolygon(
hBrush,
points
);
g.DrawPolygon(
newWallPen,
points
);
}
if (room == null)
{
return;
}
// draw current state
double time = (double)stopWatch.ElapsedMilliseconds / 1000;
double frameDeltaReal = time - lastRealTime;
double simTime = lastSimTime + frameDeltaReal * timeScale;
//double scaledTime = time;
lastRealTime = time;
lastSimTime = simTime;
BallsModel.State currentState = room.getActualState(simTime);
double cpu = myAppCpu.NextValue();
cpuUsageBuffer.Add(cpu);
if (cpuUsageBuffer.Count > 55)
{
cpuUsageBuffer.RemoveAt(0);
}
frameDurationBuffer.Add(frameDeltaReal);
if (frameDurationBuffer.Count > 55)
{
frameDurationBuffer.RemoveAt(0);
}
StateDrawer.Draw(
g,
currentState,
simTime,
scaleModel,
scaleVectors,
showCenter,
showFrame,
showVector
);
}
private void start()
{
//BallsModel.Ball[] balls = new BallsModel.Ball[]
//{
// new BallsModel.Ball(
// new BallsModel.Vector(20.0, 50.0),
// 1.0,
// new BallsModel.Circle(5.0, 5.0, 1.0),
// FSharpOption<Guid>.None
// ),
// new BallsModel.Ball(
// new BallsModel.Vector(-20.0, 60.0),
// 2.0,
// new BallsModel.Circle(5.0, 5.0, 2.0),
// FSharpOption<Guid>.None
// )
//};
Random rnd = new Random();
BallsModel.Ball[] balls = new BallsModel.Ball[ballsCount].Select(_ =>
{
const double speed = 3;
double dx = rnd.NextDouble() * 5 * speed;
double dy = rnd.NextDouble() * 5 * speed;
double r = rnd.NextDouble() * 2 + 0.1;
//double dx = 3;
//double dy = 0.1;
return(new BallsModel.Ball(
new BallsModel.Vector(dx, dy),
1.0,
new BallsModel.Circle(8.0, 5.0, r),
FSharpOption <Guid> .None
));
}).ToArray();
double wallWeight = Math.Pow(10, 5);
BallsModel.Wall[] walls = new BallsModel.Wall[] {
//new BallsModel.Wall(
// new BallsModel.Point[]
// {
// new BallsModel.Point(20.0, 10.0),
// new BallsModel.Point(20.0, 45.0),
// new BallsModel.Point(25.0, 45.0),
// new BallsModel.Point(25.0, 10.0),
// },
// wallWeight,
// FSharpOption<Guid>.None
//),
//new BallsModel.Wall(
// new BallsModel.Point[]
// {
// new BallsModel.Point(20.0, 6.0),
// new BallsModel.Point(20.0, 7.0),
// new BallsModel.Point(25.0, 7.0),
// new BallsModel.Point(25.0, 6.0),
// },
// wallWeight,
// FSharpOption<Guid>.None
//),
// anchors
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(2.0, 0.0),
new BallsModel.Point(-1.0, 3.0),
new BallsModel.Point(-1.0, 0.0),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(boxWidth - 2, 0.0),
new BallsModel.Point(boxWidth + 1, 3.0),
new BallsModel.Point(boxWidth + 1, 0.0),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(boxWidth + 1, boxHeight - 2),
new BallsModel.Point(boxWidth - 2, boxHeight + 1),
new BallsModel.Point(boxWidth - 2, boxHeight + 1),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(-1.0, boxHeight - 2),
new BallsModel.Point(2.0, boxHeight + 1),
new BallsModel.Point(-1.0, boxHeight + 1),
},
wallWeight,
FSharpOption <Guid> .None
),
// square walls
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(boxWidth - 2, 0.0),
//new BallsModel.Point(39.0, 3.0),
new BallsModel.Point(boxWidth + 1, 3.0),
new BallsModel.Point(boxWidth + 1, 0.0),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(-1.0, 0.0),
new BallsModel.Point(boxWidth + 1, 0.0),
new BallsModel.Point(boxWidth + 1, 1.0),
new BallsModel.Point(-1.0, 1.0),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(boxWidth, 0.0),
new BallsModel.Point(boxWidth, boxHeight + 1),
new BallsModel.Point(boxWidth + 1, boxHeight + 1),
new BallsModel.Point(boxWidth + 1, 0.0),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(boxWidth + 1, boxHeight),
new BallsModel.Point(-1.0, boxHeight),
new BallsModel.Point(-1.0, boxHeight + 1),
new BallsModel.Point(boxWidth + 1, boxHeight + 1),
},
wallWeight,
FSharpOption <Guid> .None
),
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(0.0, 0.0),
new BallsModel.Point(0.0, boxHeight + 1),
new BallsModel.Point(-1.0, boxHeight + 1),
new BallsModel.Point(-1.0, 0.0),
},
wallWeight,
FSharpOption <Guid> .None
),
// other walls
new BallsModel.Wall(
new BallsModel.Point[]
{
new BallsModel.Point(20.0, 20.0),
new BallsModel.Point(30.0, 15.0),
new BallsModel.Point(35.0, 30.0),
new BallsModel.Point(25.0, 33.0),
},
wallWeight,
FSharpOption <Guid> .None
),
};
BallsModel.State initialState =
new BallsModel.State(
balls,
walls,
(double)stopWatch.ElapsedMilliseconds / 1000,
FSharpOption <
Microsoft.FSharp.Collections.FSharpMap <
Guid,
BallsModel.Collision
>
> .None
);
room = new Room(initialState);
renderTimer.Interval = 4;
renderTimer.Tick += (s, a) =>
{
Invalidate();
};
textStateTimer.Interval = 100;
textStateTimer.Tick += (s, a) =>
{
printState();
};
textStateTimer.Start();
renderTimer.Start();
stopWatch.Start();
lastRealTime = (double)stopWatch.ElapsedMilliseconds / 1000;
lastSimTime = lastRealTime;
}
public static void Draw(
Graphics g,
BallsModel.State state,
double time,
float scale = 1,
float scaleVectors = 1,
bool showCenter = true,
bool showFrame = false,
bool showVector = true
)
{
Pen wallPen = new Pen(Color.Black, 3f);
foreach (BallsModel.Wall wall in state.walls)
{
PointF[] points =
wall.frame.points
.Select(p => new PointF((float)p.x * scale, (float)p.y * scale))
.ToArray();
HatchBrush hBrush = new HatchBrush(
HatchStyle.ForwardDiagonal,
Color.White,
Color.Gray
);
g.FillPolygon(
hBrush,
points
);
g.DrawPolygon(
wallPen,
points
);
}
Pen ballPen = new Pen(Color.DarkRed, 2f);
Brush ballCenterBrush = Brushes.Red;
Pen ballVectorPen = new Pen(Color.DarkGreen, 3f);
ballVectorPen.EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor;
double timeDelta = time - state.timeStamp;
foreach (BallsModel.Ball ball in state.balls)
{
double currentX = ball.frame.x + ball.ph.speed.dx * timeDelta;
double currentY = ball.frame.y + ball.ph.speed.dy * timeDelta;
float r = (float)ball.frame.radius * scale * 2;
float x = (float)(currentX * scale);
float y = (float)(currentY * scale);
if (showCenter)
{
float cr = scale / 2;
g.DrawRectangle(ballPen, x - cr / 2, y - cr / 2, cr, cr);
}
if (showFrame)
{
// draw circle
g.DrawEllipse(ballPen, x - r / 2, y - r / 2, r, r);
}
if (showVector)
{
// draw speed vector
float dx = (float)ball.ph.speed.dx * scaleVectors;
float dy = (float)ball.ph.speed.dy * scaleVectors;
g.DrawLine(ballVectorPen, x, y, x + dx, y + dy);
// draw center circle
g.FillEllipse(
ballCenterBrush,
x - 5,
y - 5,
10,
10
);
}
}
}
