public void ResetVectorField(int gridWidthIndex, int gridHeightIndex)
{
float rAngle = RandomFuncts.GetRandomFloat((float)-Math.PI, (float)Math.PI);
float rVel = RandomFuncts.GetRandomFloat(0, 20);
float x = (float)Math.Sin(rAngle) * rVel;
float y = (float)-Math.Cos(rAngle) * rVel;
for (int j = -1; j < 2; j++)
{
for (int k = -1; k < 2; k++)
{
this.vfVecX[MathFuncts.Mod(gridWidthIndex - j, this.gridSize), MathFuncts.Mod(gridHeightIndex - j, this.gridSize)] = x;
this.vfVecY[MathFuncts.Mod(gridWidthIndex - k, this.gridSize), MathFuncts.Mod(gridHeightIndex - k, this.gridSize)] = y;
}
}
}
public void WrapAroundWindow(int index)
{
if (this.posX[index] > this.width)
{
this.posX[index] = MathFuncts.Mod((int)(this.posX[index] - this.width), (int)this.width);
}
else if (this.posX[index] < 0)
{
this.posX[index] = MathFuncts.Mod((int)((int)this.posX[index] + this.width), (int)this.width);
}
if (this.posY[index] > this.height)
{
this.posY[index] = MathFuncts.Mod((int)(this.posY[index] - this.height), (int)this.height);
}
else if (this.posY[index] < 0)
{
this.posY[index] = MathFuncts.Mod((int)(this.posY[index] + this.height), (int)this.height);
}
}