private static TerrainTile[,] CreateTerrain(int seed, PolygonMap map)
{
var rasterizer = new Rasterizer <TerrainTile>(Size, Size);
//Set all to ocean
rasterizer.Clear(new TerrainTile
{
PolygonId = -1,
Elevation = 0,
Moisture = 1,
TileId = TileTypes.DeepWater,
TileObj = null
});
//Render lands poly
foreach (var poly in map.Polygons.Where(_ => !_.IsWater))
{
uint color = 0x00ffffff;
color |= (uint)(poly.DistanceToCoast * 255) << 24;
rasterizer.FillPolygon(
poly.Nodes.SelectMany(_ =>
{
return(new[]
{
(_.X + 1) / 2 * Size,
(_.Y + 1) / 2 * Size
});
}).Concat(new[]
{
(poly.Nodes[0].X + 1) / 2 * Size,
(poly.Nodes[0].Y + 1) / 2 * Size
}).ToArray(),
new TerrainTile
{
PolygonId = poly.Id,
Elevation = (float)poly.DistanceToCoast,
Moisture = -1,
TileId = TileTypes.Grass,
TileObj = null
});
}
var fea = new MapFeatures(map, seed);
//Render roads
var roads = fea.GenerateRoads();
foreach (var i in roads)
{
rasterizer.DrawClosedCurve(i.SelectMany(_ => new[]
{
(_.X + 1) / 2 * Size, (_.Y + 1) / 2 * Size
}).ToArray(),
1, t =>
{
t.TileId = TileTypes.Road;
return(t);
}, 3);
}
//Render waters poly
foreach (var poly in map.Polygons.Where(_ => _.IsWater))
{
var tile = new TerrainTile
{
PolygonId = poly.Id,
Elevation = (float)poly.DistanceToCoast,
TileObj = null
};
if (poly.IsCoast)
{
tile.TileId = TileTypes.MovingWater;
tile.Moisture = 0;
}
else
{
tile.TileId = TileTypes.DeepWater;
tile.Moisture = 1;
}
rasterizer.FillPolygon(
poly.Nodes.SelectMany(_ =>
{
return(new[]
{
(_.X + 1) / 2 * Size,
(_.Y + 1) / 2 * Size
});
}).Concat(new[]
{
(poly.Nodes[0].X + 1) / 2 * Size,
(poly.Nodes[0].Y + 1) / 2 * Size
}).ToArray(), tile);
}
//Render rivers
var rivers = fea.GenerateRivers();
var edges = new Dictionary <Tuple <MapNode, MapNode>, int>();
foreach (var i in rivers)
{
for (var j = 1; j < i.Length; j++)
{
var edge = new Tuple <MapNode, MapNode>(i[j - 1], i[j]);
int count;
if (edges.TryGetValue(edge, out count))
{
count++;
}
else
{
count = 1;
}
edges[edge] = count;
}
}
foreach (var i in edges)
{
i.Key.Item1.IsWater = true;
i.Key.Item1.RiverValue = i.Value + 1;
i.Key.Item2.IsWater = true;
i.Key.Item2.RiverValue = i.Value + 1;
rasterizer.DrawLineBresenham(
(i.Key.Item1.X + 1) / 2 * Size, (i.Key.Item1.Y + 1) / 2 * Size,
(i.Key.Item2.X + 1) / 2 * Size, (i.Key.Item2.Y + 1) / 2 * Size,
t =>
{
t.TileId = TileTypes.Water;
t.Elevation = (float)(i.Key.Item1.DistanceToCoast + i.Key.Item2.DistanceToCoast) / 2;
t.Moisture = 1;
return(t);
}, 3 * Math.Min(2, i.Value));
}
return(rasterizer.Buffer);
}
static TerrainTile[,] CreateTerrain(int seed, PolygonMap map)
{
Rasterizer<TerrainTile> rasterizer = new Rasterizer<TerrainTile>(Size, Size);
//Set all to ocean
rasterizer.Clear(new TerrainTile()
{
PolygonId = -1,
Elevation = 0,
Moisture = 1,
TileId = TileTypes.DeepWater,
TileObj = null
});
//Render lands poly
foreach (var poly in map.Polygons.Where(_ => !_.IsWater))
{
uint color = 0x00ffffff;
color |= (uint)(poly.DistanceToCoast * 255) << 24;
rasterizer.FillPolygon(
poly.Nodes.SelectMany(_ =>
{
return new[]{ (_.X + 1) / 2 * Size,
(_.Y + 1) / 2 * Size};
}).Concat(new[]{ (poly.Nodes[0].X + 1) / 2 * Size,
(poly.Nodes[0].Y + 1) / 2 * Size}).ToArray(),
new TerrainTile()
{
PolygonId = poly.Id,
Elevation = (float)poly.DistanceToCoast,
Moisture = -1,
TileId = TileTypes.Grass,
TileObj = null
});
}
MapFeatures fea = new MapFeatures(map, seed);
//Render roads
var roads = fea.GenerateRoads();
foreach (var i in roads)
{
rasterizer.DrawClosedCurve(i.SelectMany(_ => new[] {
(_.X + 1) / 2 * Size, (_.Y + 1) / 2 * Size }).ToArray(),
1, t =>
{
t.TileId = TileTypes.Road;
return t;
}, 3);
}
//Render waters poly
foreach (var poly in map.Polygons.Where(_ => _.IsWater))
{
var tile = new TerrainTile()
{
PolygonId = poly.Id,
Elevation = (float)poly.DistanceToCoast,
TileObj = null
};
if (poly.IsCoast)
{
tile.TileId = TileTypes.MovingWater;
tile.Moisture = 0;
}
else
{
tile.TileId = TileTypes.DeepWater;
tile.Moisture = 1;
}
rasterizer.FillPolygon(
poly.Nodes.SelectMany(_ =>
{
return new[]{ (_.X + 1) / 2 * Size,
(_.Y + 1) / 2 * Size};
}).Concat(new[]{ (poly.Nodes[0].X + 1) / 2 * Size,
(poly.Nodes[0].Y + 1) / 2 * Size}).ToArray(), tile);
}
//Render rivers
var rivers = fea.GenerateRivers();
Dictionary<Tuple<MapNode, MapNode>, int> edges = new Dictionary<Tuple<MapNode, MapNode>, int>();
foreach (var i in rivers)
{
for (int j = 1; j < i.Length; j++)
{
Tuple<MapNode, MapNode> edge = new Tuple<MapNode, MapNode>(i[j - 1], i[j]);
int count;
if (edges.TryGetValue(edge, out count))
count++;
else
count = 1;
edges[edge] = count;
}
}
foreach (var i in edges)
{
i.Key.Item1.IsWater = true;
i.Key.Item1.RiverValue = i.Value + 1;
i.Key.Item2.IsWater = true;
i.Key.Item2.RiverValue = i.Value + 1;
rasterizer.DrawLineBresenham(
(i.Key.Item1.X + 1) / 2 * Size, (i.Key.Item1.Y + 1) / 2 * Size,
(i.Key.Item2.X + 1) / 2 * Size, (i.Key.Item2.Y + 1) / 2 * Size,
t =>
{
t.TileId = TileTypes.Water;
t.Elevation = (float)(i.Key.Item1.DistanceToCoast + i.Key.Item2.DistanceToCoast) / 2;
t.Moisture = 1;
return t;
}, 3 * Math.Min(2, i.Value));
}
return rasterizer.Buffer;
}