private void _ComputeFlow()
{
var W = Terrain.GetWidth();
var H = Terrain.GetHeight();
var t = Terrain.GetData();
var f = Flow.GetData();
t.Lock();
f.Lock();
for (int x = 0; x < W; x++)
{
for (int y = 0; y < H; y++)
{
var Flow = f.GetPixel(x, y);
var curr = t.GetPixel(x, y);
var left = t.GetPixel(x - 1, y);
var right = t.GetPixel(x + 1, y);
var up = t.GetPixel(x, y - 1);
var down = t.GetPixel(x, y + 1);
float height = curr.r + curr.g;
float fl = 0f;
float fr = 0f;
float fu = 0f;
float fd = 0f;
if (x - 1 >= 0)
{
fl = Flow.r + Mathf.Max(0, height - left.r - left.g);
}
if (x + 1 < W)
{
fr = Flow.g + Mathf.Max(0, height - right.r - right.g);
}
if (y - 1 >= 0)
{
fu = Flow.b + Mathf.Max(0, height - up.r - up.g);
}
if (y + 1 < H)
{
fd = Flow.a + Mathf.Max(0, height - down.r - down.g);
}
float fout = fl + fr + fu + fd;
float K = 0f;
if (fout != 0)
{
K = Mathf.Min(1, curr.r / fout);
}
f.SetPixel(x, y, new Color(K * fl, K * fr, K * fu, K * fd));
}
}
t.Unlock();
f.Unlock();
}
public override void _Ready()
{
if (Terrain == null || Terrain.GetWidth() != TileSize || Terrain.GetHeight() != TileSize)
{
Terrain = new ImageTexture();
Terrain.Create(TileSize, TileSize, Image.Format.Rgbaf);
terrainImg = new Image();
terrainImg.Create(TileSize, TileSize, false, Image.Format.Rgbaf);
}
if (Mesh == null)
{
var mesh = new PlaneMesh();
mesh.Size = new Vector2(TileSize, TileSize);
mesh.SubdivideWidth = TileSize;
mesh.SubdivideDepth = TileSize;
Mesh = mesh;
var mat = new ShaderMaterial();
mat.SetShader(TerrainShader);
SetSurfaceMaterial(0, mat);
}
if (WorldPos != Vector3.Zero)
{
_LoadTerrainData();
}
hydraulics = new HydraulicSimulation(Terrain);
terrainImg = Terrain.GetData();
}
public StatusNumber(XElement xml) : this(
uint.TryParse(xml?.Attribute("Digits")?.Value, out uint digits) ? digits : 0
)
{
XML = xml;
Position = new Vector2(
float.TryParse(XML?.Attribute("X")?.Value, out float x) ? x : 0,
float.TryParse(XML?.Attribute("Y")?.Value, out float y) ? y : 0
);
if (XML?.Attribute("Name")?.Value is string name && !string.IsNullOrWhiteSpace(name))
{
Name = name;
}
if (XML?.Attribute("Have")?.Value is string have && !string.IsNullOrWhiteSpace(have))
{
Have = Assets.PicTexture(have);
}
if (XML?.Attribute("Empty")?.Value is string empty && !string.IsNullOrWhiteSpace(empty))
{
Empty = Assets.PicTexture(empty);
}
if (Empty != null || Have != null)
{
ImageTexture size = Empty ?? Have;
Item = new Sprite()
{
Name = "Item",
Position = new Vector2(size.GetWidth() / 2, size.GetHeight() / 2),
};
}
if (uint.TryParse(XML?.Attribute("Max")?.Value, out uint max))
{
Max = max;
}
if (uint.TryParse(XML?.Attribute("Init")?.Value, out uint init))
{
Value = init;
}
Visible = !XML.IsFalse("Visible");
}
public HydraulicSimulation(ImageTexture terrain)
{
this.Terrain = terrain;
Flow = new ImageTexture();
Flow.Create(Terrain.GetWidth(), Terrain.GetHeight(), Image.Format.Rgbaf);
}