/// <summary>
/// Draw the space
/// </summary>
private void RenderGrid()
{
fLines = new DynamicPrimitiveLine(GraphicsDevice);
float worldFactor = WORLD_SIZE / (WORLD_BLOCKS - 1);
VertexPositionColor p1;
VertexPositionColor p2;
for (int x = 0; x < WORLD_BLOCKS; x++)
{
float sx1 = (x + 0.5f) * worldFactor - HALF_WORLD_SIZE;
for (int y = 0; y < WORLD_BLOCKS; y++)
{
float sy1 = (y + 0.5f) * worldFactor - HALF_WORLD_SIZE;
for (int z = 0; z < WORLD_BLOCKS; z++)
{
float sz1 = (z + 0.5f) * worldFactor - HALF_WORLD_SIZE;
float dx = 1024 * (fSpace[x, y, z].ForcePositiveX - fSpace[x, y, z].ForceNegativeX);
float dy = 1024 * (fSpace[x, y, z].ForcePositiveY - fSpace[x, y, z].ForceNegativeY);
float dz = 1024 * (fSpace[x, y, z].ForcePositiveZ - fSpace[x, y, z].ForceNegativeZ);
Vector3 d = new Vector3(dx, dy, dz);
float power = d.Length() / 1000000;
if (power > 0)
{
d.Normalize();
if (power > 200)
{
power = 200;
}
dx = d.X * power;
dy = d.Y * power;
dz = d.Z * power;
float sx2 = sx1 + dx;
float sy2 = sy1 + dy;
float sz2 = sz1 + dz;
int r = (int)(255f * Math.Abs(d.X));
int g = (int)(255f * Math.Abs(d.Y));
int b = (int)(255f * Math.Abs(d.Z));
Color c1 = new Color(r, g, b);
Color c2 = Color.Transparent;
p1 = new VertexPositionColor(new Vector3(sx1, sy1, sz1), c1);
p2 = new VertexPositionColor(new Vector3(sx2, sy2, sz2), c2);
fLines.AddLine(p1, p2);
}
}
}
}
fBasicEffect.World = fCamera.Camera.WorldMatrix;
fBasicEffect.View = fCamera.Camera.ViewMatrix;
fBasicEffect.Projection = fCamera.Camera.ProjectionMatrix;
foreach (EffectPass pass in fBasicEffect.CurrentTechnique.Passes)
{
pass.Apply();
fLines.Render();
}
}
/// <summary>
/// Initializes the lines
/// </summary>
private void InitializeLines()
{
fLines = new DynamicPrimitiveLine(GraphicsDevice);
for (int i = 0; i < 256; i++)
{
fLines.AddCircle(TARGET_WIDTH / 2, TARGET_HEIGHT / 2, 0, i / 5.0f, 50, new Color(i, 255 - i, 255 - i, 255));
}
for (int i = 0; i < 5; i++)
{
Color color = new Color(255 - i * 25, 0, 0, 255);
fLines.AddLine(
new VertexPositionColor(new Vector3(i, i, 0), color),
new VertexPositionColor(new Vector3(TARGET_WIDTH - i - 1, i, 0), color));
fLines.AddLine(
new VertexPositionColor(new Vector3(TARGET_WIDTH - i - 1, i, 0), color),
new VertexPositionColor(new Vector3(TARGET_WIDTH - i - 1, TARGET_HEIGHT - i - 1, 0), color));
fLines.AddLine(
new VertexPositionColor(new Vector3(TARGET_WIDTH - i - 1, TARGET_HEIGHT - i - 1, 0), color),
new VertexPositionColor(new Vector3(i, TARGET_HEIGHT - i - 1, 0), color));
fLines.AddLine(
new VertexPositionColor(new Vector3(i, TARGET_HEIGHT - i - 1, 0), color),
new VertexPositionColor(new Vector3(i, i, 0), color));
}
}
private void AddTreeBranch(VertexPositionColor p1, int branches, double maxRadius, int maxLines)
{
double radius = fRandom.NextDouble() * maxRadius;
if (radius > 4.0f && fLines.Lines < maxLines)
{
double maxInnerRadius = radius / 1.8f;
for (int i = 0; i < branches; i++)
{
VertexPositionColor p2 = GetRandomPoint(p1, radius);
p2.Color.A += 32;
fLines.AddLine(p1, p2);
AddTreeBranch(p2, branches, maxInnerRadius, maxLines);
}
}
}
/// <summary>
/// Draw the space
/// </summary>
private void RenderGrid()
{
fLines = new DynamicPrimitiveLine(fSpriteBatch.GraphicsDevice);
float worldFactor = WORLD_SIZE / (WORLD_BLOCKS - 1);
for (int x = 0; x < WORLD_BLOCKS; x++)
{
//int blockX = (int)((particle.Position.X + HALF_WORLD_SIZE) * PARTICLE_TO_WORLD);
//int blockY = (int)((particle.Position.Y + HALF_WORLD_SIZE) * PARTICLE_TO_WORLD);
float sx1 = (x + 0.5f) * worldFactor - HALF_WORLD_SIZE;
for (int y = 0; y < WORLD_BLOCKS; y++)
{
float sy1 = (y + 0.5f) * worldFactor - HALF_WORLD_SIZE;
float dx = 1024 * 1024 * 1024 * (fSpace[x, y].ForceRight - fSpace[x, y].ForceLeft);
float dy = 1024 * 1024 * 1024 * (fSpace[x, y].ForceUp - fSpace[x, y].ForceDown);
float f = Convert.ToSingle(Math.Sqrt(dx * dx + dy * dy));
float f1 = f;
Color c1;
Color c2;
int b1;
float size = 1.0f;
if (f1 < 1024.0f)
{
size = f1 / 1024.0f;
b1 = (byte)(f1 / 4.0f);
c1 = new Color(0, 0, b1, 255);
c2 = new Color(0, 0, b1, 255);
}
else
{
f1 /= 1024.0f;
if (f1 < 1024.0f)
{
size = 1.0f;// 0.5f + f1 / 512.0f;
b1 = (byte)(f1 / 4.0f);
c1 = new Color(0, b1, 255 - b1, 255);
c2 = new Color(0, 255, 0, 128);
}
else
{
f1 /= 1024.0f;
if (f1 < 1024.0f)
{
size = 1.0f;//0.5f + f1 / 512.0f;
b1 = (byte)(f1 / 4.0f);
c1 = new Color(b1, 255, 0, 255);
c2 = new Color(255, 255, 0, 128);
}
else
{
f1 /= 1024.0f;
if (f1 < 1024.0f)
{
size = 1.0f;//0.5f + f1 / 512.0f;
b1 = (byte)(f1 / 4.0f);
c1 = new Color(255, 255 - b1, 0, 255);
c2 = new Color(255, 0, 0, 128);
}
else
{
size = 1.0f;
c1 = new Color(255, 0, 255, 255);
c2 = new Color(255, 0, 255, 255);
}
}
}
}
dx = MAX_LINE_SIZE * (dx / f) * size;
dy = MAX_LINE_SIZE * (dy / f) * size;
float sx2 = sx1 + dx;
float sy2 = sy1 + dy;
VertexPositionColor p1 = new VertexPositionColor(new Vector3(sx1, sy1, 0), c1);
VertexPositionColor p2 = new VertexPositionColor(new Vector3(sx2, sy2, 0), c2);
fLines.AddLine(p1, p2);
}
}
fBasicEffect.World = fCamera.Camera.WorldMatrix;
fBasicEffect.View = fCamera.Camera.ViewMatrix;
fBasicEffect.Projection = fCamera.Camera.ProjectionMatrix;
foreach (EffectPass pass in fBasicEffect.CurrentTechnique.Passes)
{
pass.Apply();
fLines.Render();
}
}
private void UpdateRectangles(bool createNewRectangles)
{
if (fRectangles == null || createNewRectangles)
{
fRectangles = MyFactory.GetRandomRectangles();
fAngle = 0;
}
else
{
foreach (var rectangle in fRectangles)
{
rectangle.Angle = fAngle;
}
}
int numberOfPoints = 4 * fRectangles.Count;
MyPoint[] points = new MyPoint[numberOfPoints];
int pointIndex = 0;
foreach (var rectangle in fRectangles)
{
var corners = rectangle.CalculateCorners();
points[pointIndex++] = corners[0];
points[pointIndex++] = corners[1];
points[pointIndex++] = corners[2];
points[pointIndex++] = corners[3];
}
var polygon = CalculateConvexPolygon(points);
if (fLines == null)
{
fLines = new DynamicPrimitiveLine(fSpriteBatch.GraphicsDevice);
fLines.UseVertexBuffer = false;
}
else
{
fLines.Clear();
}
double boardArea = 0;
foreach (var rectangle in fRectangles)
{
var corners = rectangle.CalculateCorners();
fLines.AddLine(ToVertexPositionColor(corners[0], Color.White), ToVertexPositionColor(corners[1], Color.White));
fLines.AddLine(ToVertexPositionColor(corners[1], Color.White), ToVertexPositionColor(corners[2], Color.White));
fLines.AddLine(ToVertexPositionColor(corners[2], Color.White), ToVertexPositionColor(corners[3], Color.White));
fLines.AddLine(ToVertexPositionColor(corners[3], Color.White), ToVertexPositionColor(corners[0], Color.White));
boardArea += rectangle.Width * rectangle.Height;
}
double polyArea = 0;
int numberOfPolyLines = polygon.Length;
for (int i = 0; i < numberOfPolyLines; i++)
{
int j = (i + 1) % numberOfPolyLines;
MyPoint p1 = polygon[i];
MyPoint p2 = polygon[j];
polyArea += MyPoint.Cross(p1, p2);
fLines.AddLine(ToVertexPositionColor(p1, Color.Red), ToVertexPositionColor(p2, Color.Red));
}
polyArea = polyArea / 2;
double ratio = 100.0 * boardArea / polyArea;
//System.Console.WriteLine($"Area: {polyArea} PolyPoints: {numberOfPolyLines}, Ratio: {ratio:F1} %");
}