public void ApplyBrush(IBrushShape brushshape, int brushsize, double brushcentre_x, double brushcentre_y, bool israising, double milliseconds)
{
Terrain terrain = Terrain.GetInstance();
double[,] mesh = terrain.Map;
int x = (int)(brushcentre_x / Terrain.SquareSize);
int y = (int)(brushcentre_y / Terrain.SquareSize);
double timemultiplier = milliseconds * speed;
int meshsize = mesh.GetUpperBound(0) + 1;
for (int i = -brushsize; i <= brushsize; i++)
{
for (int j = -brushsize; j <= brushsize; j++)
{
int thisx = x + i;
int thisy = y + j;
if (thisx >= 0 && thisy >= 0 && thisx < meshsize &&
thisy < meshsize)
{
double brushshapecontribution = brushshape.GetStrength((double)i / brushsize, (double)j / brushsize);
if (brushshapecontribution > 0)
{
mesh[thisx, thisy] = mesh[thisx, thisy] + (mesh[x, y] - mesh[thisx, thisy]) * brushshapecontribution * timemultiplier / 50;
}
}
}
}
terrain.OnHeightMapInPlaceEdited(x - brushsize, y - brushsize, x + brushsize, y + brushsize);
}