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using System;
using OpenSim.Region.Environment.Interfaces;
using OpenSim.Region.Environment.Modules.World.Terrain;
using OpenSim.Region.Environment.Modules.World.Terrain.FloodBrushes;
namespace OpenSim.Region.Modules.Terrain.Extensions.DefaultEffects.Effects
{
public class ChannelDigger : ITerrainEffect
{
private readonly int num_h = 4;
private readonly int num_w = 4;
private readonly ITerrainFloodEffect raiseFunction = new RaiseArea();
private readonly ITerrainFloodEffect smoothFunction = new SmoothArea();
#region ITerrainEffect Members
public void RunEffect(ITerrainChannel map)
{
FillMap(map, 15);
BuildTiles(map, 7);
SmoothMap(map, 3);
}
#endregion
private void SmoothMap(ITerrainChannel map, int rounds)
{
Boolean[,] bitmap = new bool[map.Width,map.Height];
for (int x = 0; x < map.Width; x++)
{
for (int y = 0; y < map.Height; y++)
{
bitmap[x, y] = true;
}
}
for (int i = 0; i < rounds; i++)
{
smoothFunction.FloodEffect(map, bitmap, 1.0);
}
}
private void FillMap(ITerrainChannel map, double val)
{
for (int x = 0; x < map.Width; x++)
for (int y = 0; y < map.Height; y++)
map[x, y] = val;
}
private void BuildTiles(ITerrainChannel map, double height)
{
int channelWidth = (int) Math.Floor((map.Width / num_w) * 0.8);
int channelHeight = (int) Math.Floor((map.Height / num_h) * 0.8);
int channelXOffset = (map.Width / num_w) - channelWidth;
int channelYOffset = (map.Height / num_h) - channelHeight;
for (int x = 0; x < num_w; x++)
{
for (int y = 0; y < num_h; y++)
{
int xoff = ((channelXOffset + channelWidth) * x) + (channelXOffset / 2);
int yoff = ((channelYOffset + channelHeight) * y) + (channelYOffset / 2);
Boolean[,] bitmap = new bool[map.Width,map.Height];
for (int dx = 0; dx < channelWidth; dx++)
{
for (int dy = 0; dy < channelHeight; dy++)
{
bitmap[dx + xoff, dy + yoff] = true;
}
}
raiseFunction.FloodEffect(map, bitmap, height);
}
}
}
}
}
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