public static void Kernel(double[] positionsx, double[] positionsy, double[] velocitiesx, double[] velocitiesy, double[] accelerationsx,
double[] accelerationsy, int width, int height, float mousex, float mousey, int[,] squareFish, int[] squaresStart,
int[] fishInSquare, int squaresInRow, int squaresNumber, int[] bitmap)
{
int ind = blockIdx.x * blockDim.x + threadIdx.x;
FishFunctions.AlignWithOtherFish(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx, accelerationsy, ind,
squareFish, squaresStart, fishInSquare, squaresInRow, squaresNumber);
FishFunctions.CohesionWithOtherFish(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx, accelerationsy, ind,
squaresStart, squareFish, fishInSquare, squaresNumber, squaresInRow);
FishFunctions.AvoidOtherFish(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx, accelerationsy, ind,
squaresStart, squareFish, fishInSquare, squaresInRow, squaresNumber);
if (mousex >= 0 && mousey >= 0)
{
FishFunctions.AvoidMouse(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx, accelerationsy, ind,
mousex, mousey);
}
FishFunctions.UpdateFish(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx, accelerationsy, ind,
width, height, mousex, mousey);
FishFunctions.Edges(positionsx, positionsy, ind, width, height);
DeviceFunction.SyncThreads();
int col = (255 << 24) + (0 << 16) + (255 << 8) + 255;
int x = (int)positionsx[ind];
int y = (int)positionsy[ind];
CircleDrawing.CircleBresenham(x, y, 2, bitmap, width, height, col);
}
private void RunCpu()
{
for (int i = 0; i < fishNumber; i++)
{
FishCPU.KernelCpu(positionsx, positionsy, velocitiesx, velocitiesy, accelerationsx,
accelerationsy, windowWidth, windowHeight, Mouse.X, Mouse.Y, squarefish, squarestart,
fishinsquere, squaresInRow, squaresNumber, i, bitmap);
}
FishFunctions.UpdateSquares(squarefish, squarestart, fishinsquere, positionsx, positionsy, fishNumber,
squaresNumber, squareSize, windowWidth);
pictureBox1.Invalidate();
}
private void OnFormLoad(object sender, EventArgs e)
{
random = new Random();
pictureBox1.SizeMode = PictureBoxSizeMode.Normal;
windowWidth = pictureBox1.Width;
windowHeight = pictureBox1.Height;
bitmap = new int[windowWidth * windowHeight];
squaresNumber = (int)Math.Ceiling((double)windowHeight / squareSize) * (int)Math.Ceiling((double)windowWidth / squareSize);
squaresInRow = (windowWidth / squareSize);
positionsx = new double[fishNumber];
positionsy = new double[fishNumber];
velocitiesx = new double[fishNumber];
velocitiesy = new double[fishNumber];
accelerationsx = new double[fishNumber];
accelerationsy = new double[fishNumber];
fishinsquere = new int[fishNumber];
squarestart = new int[squaresNumber];
squarefish = new int[fishNumber, 2];
for (int i = 0; i < fishNumber; i++)
{
var r1 = random.Next(-10, 10);
var r2 = random.Next(-10, 10);
var Velocity = new Vector2(r1, r2);
if (Velocity.Length() < 2 || Velocity.Length() > 4)
{
float maxValue = (float)random.NextDouble() % 3 + 2;
float vLength = Velocity.Length();
if (vLength > 0)
{
Velocity *= new Vector2(maxValue / vLength, maxValue / vLength);
}
}
positionsx[i] = random.Next(1, pictureBox1.Width - 1);
positionsy[i] = random.Next(1, pictureBox1.Height - 1);
velocitiesx[i] = Velocity.X;
velocitiesy[i] = Velocity.Y;
accelerationsx[i] = 0;
accelerationsy[i] = 0;
}
FishFunctions.UpdateSquares(squarefish, squarestart, fishinsquere, positionsx, positionsy, fishNumber,
squaresNumber, squareSize, windowWidth);
Timer timer = new Timer();
timer.Interval = 10;
timer.Tick += Timer_Tick;
timer.Start();
}
private void RunGpu()
{
var gpu = Alea.Gpu.Default;
gpu.Launch(FishGPU.Kernel, new Alea.LaunchParam((int)Math.Ceiling((double)fishNumber / 512), 512), positionsx, positionsy,
velocitiesx, velocitiesy, accelerationsx, accelerationsy, windowWidth, windowHeight, Mouse.X,
Mouse.Y, squarefish, squarestart, fishinsquere, squaresInRow, squaresNumber, bitmap);
FishFunctions.UpdateSquares(squarefish, squarestart, fishinsquere, positionsx, positionsy, fishNumber,
squaresNumber, squareSize, windowWidth);
if (!drawOnGpu)
{
pictureBox1.Invalidate();
}
else
{
DrawFish();
}
}