public static Triangle[] Triangulate(this TerrainFile @this)
{
var heightMap = @this.GenerateRealMap();
var weight = heightMap.GetLength(0);
var height = heightMap.GetLength(1);
bool TryGetValue(int x, int y, out Vector3 value)
{
try
{
value = heightMap[x, y];
return(true);
}
catch
{
value = Vector3.Zero;
return(false);
}
}
var triangles = new List <Triangle>();
for (var y = 0; y < height; y += 1)
{
for (var x = 0; x < weight; x += 1)
{
{
if (!TryGetValue(x, y, out var source))
{
continue;
}
if (!TryGetValue(x + 1, y, out var next))
{
continue;
}
if (!TryGetValue(x, y + 1, out var top))
{
continue;
}
var triangle = new Triangle
{
Position1 = top,
Position2 = next,
Position3 = source
};
triangles.Add(triangle);
}
{
if (!TryGetValue(x, y + 1, out var source))
{
continue;
}
if (!TryGetValue(x + 1, y + 1, out var next))
{
continue;
}
if (!TryGetValue(x + 1, y, out var top))
{
continue;
}
var triangle = new Triangle
{
Position1 = source,
Position2 = next,
Position3 = top
};
triangles.Add(triangle);
}
}
}
return(triangles.ToArray());
}
