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/*
* Copyright (c) Contributors, http://opensimulator.org/
* See CONTRIBUTORS.TXT for a full list of copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the OpenSim Project nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
using System;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules.Terrain.FloodBrushes;
using OpenSim.Region.Environment.Modules.Terrain.PaintBrushes;
namespace OpenSim.Region.Environment.Modules.Terrain.Effects
{
internal class CookieCutter : ITerrainEffect
{
#region ITerrainEffect Members
public void RunEffect(ITerrainChannel map)
{
SmoothArea smooth = new SmoothArea();
ITerrainPaintableEffect eroder = new WeatherSphere();
bool[,] cliffMask = new bool[map.Width,map.Height];
bool[,] channelMask = new bool[map.Width,map.Height];
bool[,] smoothMask = new bool[map.Width,map.Height];
Console.WriteLine("S1");
// Step one, generate rough mask
int x, y;
for (x = 0; x < map.Width; x++)
{
for (y = 0; y < map.Height; y++)
{
Console.Write(".");
smoothMask[x, y] = true;
// Start underwater
map[x, y] = TerrainUtil.PerlinNoise2D(x, y, 3, 0.25) * 5;
// Add a little height. (terrain should now be above water, mostly.)
map[x, y] += 20;
int channelsX = 4;
int channelWidth = (map.Width / channelsX / 4);
int channelsY = 4;
int channelHeight = (map.Height / channelsY / 4);
SetLowerChannel(map, cliffMask, channelMask, x, y, channelsX, channelWidth, map.Width, x);
SetLowerChannel(map, cliffMask, channelMask, x, y, channelsY, channelHeight, map.Height, y);
}
}
Console.WriteLine("S2");
//smooth.FloodEffect(map, smoothMask, 4.0);
Console.WriteLine("S3");
for (x = 0; x < map.Width; x++)
{
for (y = 0; y < map.Height; y++)
{
if (cliffMask[x, y] == true)
eroder.PaintEffect(map, x, y, 4, 0.1);
}
}
for (x = 0; x < map.Width; x += 2)
{
for (y = 0; y < map.Height; y += 2)
{
if (map[x, y] < 0.1)
map[x, y] = 0.1;
if (map[x, y] > 256)
map[x, y] = 256;
}
}
//smooth.FloodEffect(map, smoothMask, 4.0);
}
#endregion
private static void SetLowerChannel(ITerrainChannel map, bool[,] cliffMask, bool[,] channelMask, int x, int y, int numChannels, int channelWidth,
int mapSize, int rp)
{
for (int i = 0; i < numChannels; i++)
{
double distanceToLine = Math.Abs(rp - ((mapSize / numChannels) * i));
if (distanceToLine < channelWidth)
{
if (channelMask[x, y])
return;
// Remove channels
map[x, y] -= 10;
channelMask[x, y] = true;
}
if (distanceToLine < 1)
{
cliffMask[x, y] = true;
}
}
}
}
}
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