public void FloodEffect(ITerrainChannel map, UUID userID, float north,
float west, float south, float east, float strength)
{
float area = strength;
float step = strength / 4;
for (int x = (int)west; x < (int)east; x++)
{
for (int y = (int)south; y < (int)north; y++)
{
if (!map.Scene.Permissions.CanTerraformLand(userID, new Vector3(x, y, 0)))
{
continue;
}
float average = 0;
int avgsteps = 0;
float n;
for (n = 0 - area; n < area; n += step)
{
float l;
for (l = 0 - area; l < area; l += step)
{
avgsteps++;
average += TerrainUtil.GetBilinearInterpolate(x + n, y + l, map);
}
}
map[x, y] = average / avgsteps;
}
}
}
public void PaintEffect(ITerrainChannel map, UUID userID, float rx, float ry, float rz, float strength,
float duration, float BrushSize)
{
int n = (int)(BrushSize + 0.5f);
if (BrushSize > 6) //If it gets too high, it will start roughening at an ever increasing rate when held down
{
BrushSize = 6;
}
strength = TerrainUtil.MetersToSphericalStrength(BrushSize);
float area = BrushSize;
float step = BrushSize / 4;
duration *= 0.01f; //MCP Should be read from ini file
int zx = (int)(rx + 0.5);
int zy = (int)(ry + 0.5);
float average = 0;
int avgsteps = 0;
float nn;
for (nn = 0 - area; nn < area; nn += step)
{
float l;
for (l = 0 - area; l < area; l += step)
{
avgsteps++;
average += TerrainUtil.GetBilinearInterpolate(rx + nn, ry + l, map);
}
}
int dx;
for (dx = -n; dx <= n; dx++)
{
int dy;
for (dy = -n; dy <= n; dy++)
{
int x = zx + dx;
int y = zy + dy;
if (x >= 0 && y >= 0 && x < map.Width && y < map.Height)
{
if (!map.Scene.Permissions.CanTerraformLand(userID, new Vector3(x, y, 0)))
{
continue;
}
float z = TerrainUtil.SphericalFactor(x, y, rx, ry, strength) / (strength);
if (z > 0) // add in non-zero amount
{
float avg;
if (avgsteps > 0)
{
avg = average / avgsteps;
}
else
{
avg = 0f;
}
float a = (map [x, y] - avg);
float newz = map [x, y] + (a * duration);
if (newz > 0.0)
{
map [x, y] = newz;
}
}
}
}
}
}
public void PaintEffect(ITerrainChannel map, bool[,] mask, double rx, double ry, double rz,
double strength, double duration, int startX, int endX, int startY, int endY)
{
strength = TerrainUtil.MetersToSphericalStrength(strength);
int x, y;
double[,] tweak = new double[map.Width, map.Height];
double area = strength;
double step = strength / 4.0;
duration = 0.03; //MCP Should be read from ini file
// compute delta map
for (x = startX; x <= endX; x++)
{
for (y = startY; y <= endY; y++)
{
if (!mask[x, y])
{
continue;
}
double z = TerrainUtil.SphericalFactor(x, y, rx, ry, strength);
if (z > 0) // add in non-zero amount
{
double average = 0.0;
int avgsteps = 0;
double n;
for (n = 0.0 - area; n < area; n += step)
{
double l;
for (l = 0.0 - area; l < area; l += step)
{
avgsteps++;
average += TerrainUtil.GetBilinearInterpolate(x + n, y + l, map);
}
}
tweak[x, y] = average / avgsteps;
}
}
}
// blend in map
for (x = startX; x <= endX; x++)
{
for (y = startY; y <= endY; y++)
{
if (!mask[x, y])
{
continue;
}
double z = TerrainUtil.SphericalFactor(x, y, rx, ry, strength);
if (z > 0) // add in non-zero amount
{
double da = z;
double a = (map[x, y] - tweak[x, y]) * da;
double newz = map[x, y] - (a * duration);
if (newz > 0.0)
{
map[x, y] = newz;
}
}
}
}
}