/// <summary>
/// Allocate large enough colormap..
/// </summary>
public static void AssertColors(int num)
{
int i;
if (debugColors == null ||
debugColors.Count < num)
{
debugColors = new List <Color>(num);
RandomJames rnd = new RandomJames();
for (i = 0; i < num; i++)
{
int R = rnd.RandomInteger(0, 255);
int G = rnd.RandomInteger(0, 255);
int B = rnd.RandomInteger(0, 255);
if (R >= 128 && G >= 128 && B >= 128)
{
if (rnd.UniformNumber() > 0.5)
{
R -= 128;
}
else
{
G -= 128;
}
}
debugColors.Add(Color.FromArgb(R, G, B));
}
}
}
/// <summary>
/// Update number of simulated marbles, 'Marbles' is requested to be equal to 'marbles'.
/// </summary>
void UpdateMarbles()
{
if (marbles < Marbles)
{
// Truncate the arrays.
int remove = Marbles - marbles;
centers.RemoveRange(marbles, remove);
radii.RemoveRange(marbles, remove);
velocities.RemoveRange(marbles, remove);
colors.RemoveRange(marbles, remove);
return;
}
// Extend the arrays.
for (int i = Marbles; i < marbles; i++)
{
centers.Add(new Vector3(rnd.RandomFloat(-10.0f, 10.0f),
rnd.RandomFloat(-10.0f, 10.0f),
rnd.RandomFloat(-10.0f, 10.0f)));
radii.Add(rnd.RandomFloat(0.4f, 1.0f));
velocities.Add(new Vector3(rnd.RandomFloat(-2.0f, 2.0f),
rnd.RandomFloat(-2.0f, 2.0f),
rnd.RandomFloat(-2.0f, 2.0f)));
colors.Add(Color.FromArgb(rnd.RandomInteger(0, 255),
rnd.RandomInteger(0, 255),
rnd.RandomInteger(0, 255)));
// {{ TODO: more initialization?
// }}
}
}
/// <summary>
/// Update number of simulated marbles, 'Marbles' is requested to be equal to 'marbles'.
/// </summary>
void UpdateMarbles()
{
if (marbles < Marbles)
{
// Truncate the arrays.
int remove = Marbles - marbles;
MyMarbles.RemoveRange(marbles, remove);
return;
}
// Extend the arrays.
for (int i = Marbles; i < marbles; i++)
{
var radius = rnd.RandomFloat(0.4f, 1.0f);
var color = Color.FromArgb(rnd.RandomInteger(0, 100),
rnd.RandomInteger(0, 255),
rnd.RandomInteger(0, 255));
var position = new Vector3(rnd.RandomFloat(-10.0f, 10.0f),
rnd.RandomFloat(-10.0f, 10.0f),
rnd.RandomFloat(-10.0f, 10.0f));
var velocity = Speed * new Vector3(rnd.RandomFloat(-2.0f, 2.0f),
rnd.RandomFloat(-2.0f, 2.0f),
rnd.RandomFloat(-2.0f, 2.0f));
var marble = new SphereObject(radius, color, position, velocity)
{
bouncyness = initBouncy,
mass = initMass
};
marble.Create();
MyMarbles.Add(marble);
}
}
/// <summary>
/// Draw the image into the initialized Canvas object.
/// </summary>
/// <param name="c">Canvas ready for your drawing.</param>
/// <param name="param">Optional string parameter from the form.</param>
public static void Draw(Canvas c, string param)
{
// {{ TODO: put your drawing code here
int wq = c.Width / 4;
int hq = c.Height / 4;
int minq = Math.Min(wq, hq);
double t;
int i, j;
double x, y, r;
RandomJames rnd = new RandomJames();
c.Clear(Color.Black);
// Example of even simpler passing of a numeric value through string param.
long seed;
if (long.TryParse(param, NumberStyles.Number, CultureInfo.InvariantCulture, out seed))
{
rnd.Reset(seed);
}
// 1st quadrant - anti-aliased disks in a spiral.
c.SetAntiAlias(true);
const int MAX_DISK = 30;
for (i = 0, t = 0.0; i < MAX_DISK; i++, t += 0.65)
{
r = 5.0 + i * (minq * 0.7 - 5.0) / MAX_DISK;
c.SetColor(Color.FromArgb(i * 255 / MAX_DISK, 255, 255 - i * 255 / MAX_DISK));
c.FillDisc((float)(wq + r * Math.Sin(t)), (float)(hq + r * Math.Cos(t)), (float)(r * 0.3));
}
// 2nd quadrant - anti-aliased random dots in a heart shape..
const int MAX_RND_DOTS = 1000;
double xx, yy, tmp;
for (i = 0; i < MAX_RND_DOTS; i++)
{
// This is called "Rejection Sampling"
do
{
x = rnd.RandomDouble(-1.5, 1.5);
y = rnd.RandomDouble(-1.0, 1.5);
xx = x * x;
yy = y * y;
tmp = xx + yy - 1.0;
} while (tmp * tmp * tmp - xx * yy * y > 0.0);
c.SetColor(Color.FromArgb(rnd.RandomInteger(200, 255),
rnd.RandomInteger(120, 220),
rnd.RandomInteger(120, 220)));
c.FillDisc(3.1f * wq + 0.8f * minq * (float)x,
1.2f * hq - 0.8f * minq * (float)y,
rnd.RandomFloat(1.0f, minq * 0.03f));
}
// 4th quadrant - CGG logo.
c.SetColor(COLORS[0]);
for (i = 0; i < DISC_DATA.Length / 3; i++)
{
x = DISC_DATA[i, 0];
y = DISC_DATA[i, 1];
r = DISC_DATA[i, 2];
if (i == FIRST_COLOR)
{
c.SetColor(COLORS[1]);
}
c.FillDisc(3.0f * wq + (float)((x - 85.0) * 0.018 * minq),
3.0f * hq + (float)((y - 65.0) * 0.018 * minq),
(float)(r * 0.018 * minq));
}
// 3rd quadrant - disk grid.
const int DISKS = 12;
for (j = 0; j < DISKS; j++)
{
for (i = 0; i < DISKS; i++)
{
c.SetColor(((i ^ j) & 1) == 0 ? Color.White : Color.Blue);
c.FillDisc(wq + (i - DISKS / 2) * (wq * 1.8f / DISKS),
3 * hq + (j - DISKS / 2) * (hq * 1.7f / DISKS),
(((i ^ j) & 15) + 1.0f) / DISKS * minq * 0.08f);
}
}
// }}
}
static void RecursiveMondrian(RandomJames rnd, Canvas c, Rect rect, int borderWidth, int depthOfRecursion, int maxDepth, int maxDots)
{
if (depthOfRecursion >= maxDepth)
{
goto FILL;
}
int divisionLine;
Rect DivisionLine;
Rect Splitted1;
Rect Splitted2;
if (depthOfRecursion % 2 == 0)
{
// Vertical split
if (rect.x1 - rect.x0 <= borderWidth * 4)
{
goto FILL;
}
divisionLine = rnd.RandomInteger(rect.x0 + borderWidth * 2, rect.x1 - borderWidth * 2);
DivisionLine = new Rect()
{
x0 = divisionLine - (borderWidth / 2),
x1 = divisionLine + (borderWidth / 2),
y0 = rect.y0,
y1 = rect.y1
};
Splitted1 = new Rect()
{
x0 = rect.x0,
x1 = DivisionLine.x0 - 1,
y0 = rect.y0,
y1 = rect.y1
};
Splitted2 = new Rect()
{
x0 = DivisionLine.x1 + 1,
x1 = rect.x1,
y0 = rect.y0,
y1 = rect.y1
};
}
else
{
// Horizontal split
if (rect.y1 - rect.y0 <= borderWidth * 4)
{
goto FILL;
}
divisionLine = rnd.RandomInteger(rect.y0 + borderWidth * 2, rect.y1 - borderWidth * 2);
DivisionLine = new Rect()
{
x0 = rect.x0,
x1 = rect.x1,
y0 = divisionLine - (borderWidth / 2),
y1 = divisionLine + (borderWidth / 2)
};
Splitted1 = new Rect()
{
x0 = rect.x0,
x1 = rect.x1,
y0 = rect.y0,
y1 = DivisionLine.y0 - 1
};
Splitted2 = new Rect()
{
x0 = rect.x0,
x1 = rect.x1,
y0 = DivisionLine.y1 + 1,
y1 = rect.y1
};
}
// Filling Division line
for (int i = 0; i < maxDots; i++)
{
int x = rnd.RandomInteger(DivisionLine.x0, DivisionLine.x1);
int y = rnd.RandomInteger(DivisionLine.y0, DivisionLine.y1);
c.SetColor(Color.Black);
c.FillDisc((float)x, (float)y, (float)rnd.RandomInteger(1, borderWidth / 4));
}
RecursiveMondrian(rnd, c, Splitted1, borderWidth, depthOfRecursion + 1, maxDepth, maxDots);
RecursiveMondrian(rnd, c, Splitted2, borderWidth, depthOfRecursion + 1, maxDepth, maxDots);
return;
FILL:
int area = (rect.x1 - rect.x0) * (rect.y1 - rect.y0);
var maxCircleRadius = Math.Sqrt((double)area / (Math.PI * Math.Log(area) * 8));
//fill that rectangle with random color
List <Color> colors = new List <Color>()
{
Color.White, Color.White, Color.White, Color.Red, Color.Blue, Color.Yellow
};
Color randomColor = colors[rnd.RandomInteger(0, colors.Count - 1)];
for (int i = 0; i < maxDots; i++)
{
int x = rnd.RandomInteger(rect.x0, rect.x1);
int y = rnd.RandomInteger(rect.y0, rect.y1);
c.SetColor(randomColor);
c.FillDisc((float)x, (float)y, (float)rnd.RandomDouble((maxCircleRadius / 2) * 0.25, maxCircleRadius / 2));
}
}
/// <summary>
/// Draw single animation frame.
/// </summary>
/// <param name="c">Canvas to draw to.</param>
/// <param name="time">Current time in seconds.</param>
/// <param name="start">Start time (t0)</param>
/// <param name="end">End time (for animation length normalization).</param>
/// <param name="param">Optional string parameter from the form.</param>
public static void DrawFrame(Canvas c, double time, double start, double end, string param)
{
// {{ TODO: put your drawing code here
int objects = 1200;
long seed = 144;
double speed = 1.0;
// Parse parameters.
Dictionary <string, string> p = Util.ParseKeyValueList(param);
if (p.Count > 0)
{
// objects=<int>
if (Util.TryParse(p, "objects", ref objects))
{
if (objects < 10)
{
objects = 10;
}
}
// seed=<long>
Util.TryParse(p, "seed", ref seed);
// speed=<double>
Util.TryParse(p, "speed", ref speed);
}
int wq = c.Width / 4;
int hq = c.Height / 4;
int minq = Math.Min(wq, hq);
double t;
int i, j;
double x, y, r;
c.Clear(Color.Black);
c.SetAntiAlias(true);
// 1st quadrant - anti-aliased disks in a spiral.
const int MAX_DISK = 30;
for (i = 0, t = 0.0; i < MAX_DISK; i++, t += 0.65)
{
r = 5.0 + i * (minq * 0.7 - 5.0) / MAX_DISK;
c.SetColor(Color.FromArgb((i * 255) / MAX_DISK, 255, 255 - (i * 255) / MAX_DISK));
c.FillDisc((float)(wq + r * Math.Sin(t)), (float)(hq + r * Math.Cos(t)), (float)(r * 0.3));
}
// 2nd quadrant - anti-aliased random dots in a heart shape..
RandomJames rnd = new RandomJames(seed + (long)((time - start) * 5));
double xx, yy, tmp;
for (i = 0; i < objects; i++)
{
// This is called "Rejection Sampling"
do
{
x = rnd.RandomDouble(-1.5, 1.5);
y = rnd.RandomDouble(-1.0, 1.5);
xx = x * x;
yy = y * y;
tmp = xx + yy - 1.0;
} while (tmp * tmp * tmp - xx * yy * y > 0.0);
c.SetColor(Color.FromArgb(rnd.RandomInteger(200, 255),
rnd.RandomInteger(120, 220),
rnd.RandomInteger(120, 220)));
c.FillDisc(3.1f * wq + 0.8f * minq * (float)x,
1.2f * hq - 0.8f * minq * (float)y,
rnd.RandomFloat(1.0f, minq * 0.03f));
}
// 4th quadrant - CGG logo.
c.SetColor(COLORS[0]);
for (i = 0; i < DISC_DATA.Length / 3; i++)
{
x = DISC_DATA[i, 0] - 65.0;
y = DISC_DATA[i, 1] - 65.0;
r = DISC_DATA[i, 2];
if (i == FIRST_COLOR)
{
c.SetColor(COLORS[1]);
}
t = 4.0 * speed * Math.PI * (time - start) / (end - start);
double sina = Math.Sin(t);
double cosa = Math.Cos(t);
double nx = cosa * x + sina * y;
double ny = -sina * x + cosa * y;
c.FillDisc(3.0f * wq + (float)((nx - 20.0) * 0.018 * minq),
3.0f * hq + (float)(ny * 0.018 * minq),
(float)(r * 0.018 * minq));
}
// 3rd quadrant - jaggy disks.
const int DISKS = 12;
for (j = 0; j < DISKS; j++)
{
for (i = 0; i < DISKS; i++)
{
c.SetColor(((i ^ j) & 1) == 0 ? Color.White : Color.Blue);
c.FillDisc(wq + (i - DISKS / 2) * (wq * 1.8f / DISKS),
3 * hq + (j - DISKS / 2) * (hq * 1.7f / DISKS),
(((i ^ j) & 15) + 1.0f) / DISKS * minq * 0.08f);
}
}
// }}
}