public override Task <ILayerMasked> GenerateLayer()
{
var oldpoints = _layerLocalParameters.Polygon.Points.ToList();
var mask = getBlurredMask(oldpoints);
Vector2 resolution = mask.Resolution;
var noisescaleDown = .33f;
const float thatMakesItGoDown = -1;
_logger.Log(mask, "canyonMask");
var blured = getBlurredProfile(oldpoints, resolution);
var layer = _noise.Do(resolution);
_layerUtility.IterateValues(blured, (coor, val) =>
{
var cv = val.HasValue ? val.Value : 0;
layer[coor] = layer[coor] * noisescaleDown + cv + thatMakesItGoDown;
});
_logger.Log(layer, "canyon");
layer.Mask = mask;
applyOffset(_layerLocalParameters.ExtendSize, oldpoints, layer);
return(Task.FromResult(layer));
}
public async Task Compose(IWorld w)
{
var param = w.Parameters;
var fields = w.Fields;
var pars = await generateFields(param, fields);
IErosionDescriptor bs;
ILayerMasked baseLayer;
IBlendModeAlpha ba;
if (w.UseBase)
{
var bsd = _describer.DescribeBaseLayer(param, w.BaseField);
//baseLayer = await bsd.LayerGlobalParameters.Profile
baseLayer = await bsd.LayerGlobalParameters.Generator.GenerateLayer();
//_layerUtils.Normalize(baseLayer);
//HACK baselayers mask extend it size
var x = new Layer2DObject(w.Parameters.BitmapResolution);
_layerUtils.IterateValues(x, (v, val) => x[v] = baseLayer[v]);
baseLayer = x;
ba = bsd.AlphaBlend;
bs = bsd;
}
else
{
baseLayer = new Layer2DObject(w.Parameters.BitmapResolution);
baseLayer.Mask = new Mask(baseLayer.Resolution);
_layerUtils.IterateValues(baseLayer.Mask, (v, val) => baseLayer[v] = 1);
setUpDefaulValue(baseLayer);
bs = new ErosionDescriptor();
ba = new AlphaBlend();
}
bs.HydraulicErosionParams.Strenght = param.ErosionStrength * strengthMultpilier;
ILayerMasked merged = merge(ba, baseLayer, pars);
//_layerUtils.FitInto(merged, 0, 1);
postProcessWholeLayer(merged, bs, w.Parameters.RiverAmount);
ComposedLayer = merged;
}
private ILayerMasked drawSiteToLayer(IntVector2 size, IEnumerable <IArea> areas)
{
var layer = new Layer2DObject(size.X, size.Y);
_layerUtility.IterateValues(layer, (x, y, va) => layer[x, y] = 0);
var layerDrawer = new LayerDrawer(layer);
foreach (var area in areas)
{
layerDrawer.DrawArea(area);
}
return(layer);
}
