private void ApplyBrush(ViewControl vc, System.Drawing.Point scrPt)
{
TerrainGob terrain = m_terrainEditor.TerrainEditorControl.SelectedTerrain;
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
TerrainMap terrainMap = m_terrainEditor.TerrainEditorControl.SelectedTerrainMap;
if (brush == null || (!brush.CanApplyTo(terrain) && !brush.CanApplyTo(terrainMap)))
{
return;
}
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
TerrainOp op = null;
if (brush.CanApplyTo(terrain))
{
Point pt = terrain.WorldToSurfaceSpace(retval.hitpos);
brush.Apply(terrain, pt.X, pt.Y, out op);
}
else if (brush.CanApplyTo(terrainMap))
{
Point pt = terrainMap.WorldToSurfaceSpace(retval.hitpos);
brush.Apply(terrainMap, pt.X, pt.Y, out op);
}
m_tmpOps.Add(op);
m_terrainOpList.Add(new WeakReference(op));
m_memUsage += op.SizeInBytes;
}
}
public Point WorldToSurfaceSpace(Vec3F posW)
{
Point result = new Point();
TerrainGob terrain = this.GetParentAs <TerrainGob>();
ImageData hmImg = terrain.GetSurface();
ImageData mpImg = GetSurface();
Point posH = terrain.WorldToSurfaceSpace(posW);
float dx = (float)mpImg.Width / (float)hmImg.Width;
float dy = (float)mpImg.Height / (float)hmImg.Height;
result.X = (int)Math.Round(posH.X * dx);
result.Y = (int)Math.Round(posH.Y * dy);
return(result);
}
bool IManipulator.Pick(ViewControl vc, System.Drawing.Point scrPt)
{
TerrainGob terrain = m_terrainEditor.TerrainEditorControl.SelectedTerrain;
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
if (terrain != null && brush != null)
{
FlattenBrush fbrush = brush as FlattenBrush;
if (fbrush != null)
{
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
Point pt = terrain.WorldToSurfaceSpace(retval.hitpos);
ImageData hm = terrain.GetSurface();
fbrush.Height = hm.GetPixelFloat(pt.X, pt.Y);
}
}
return(true);
}
return(false);
}