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;
}
}
void IManipulator.Render(ViewControl vc)
{
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;
}
Vec2F drawscale = new Vec2F(1.0f, 1.0f);
if (brush.CanApplyTo(terrainMap))
{
ImageData mapImg = terrainMap.GetSurface();
ImageData hmImg = terrain.GetSurface();
drawscale.X = (float)hmImg.Width / (float)mapImg.Width;
drawscale.Y = (float)hmImg.Height / (float)mapImg.Height;
}
Point scrPt = vc.PointToClient(Control.MousePosition);
if (!vc.ClientRectangle.Contains(scrPt))
{
return;
}
Ray3F rayw = vc.GetWorldRay(scrPt);
TerrainGob.RayPickRetVal retval;
if (terrain.RayPick(rayw, out retval))
{
terrain.DrawBrush(brush, drawscale, retval.hitpos);
}
}
public void DrawBrush(TerrainBrush brush, Vec2F drawscale, Vec3F posW)
{
INativeObject nobj = this.As <INativeObject>();
DrawBrushArgs arg;
arg.falloff = brush.Falloff;
arg.radius = (float)brush.Radius;
arg.posW = posW;
arg.drawscale = drawscale;
IntPtr argPtr = new IntPtr(&arg);
IntPtr retval;
nobj.InvokeFunction("DrawBrush", argPtr, out retval);
}
private void BrushRdoCheckedChanged(object sender, EventArgs e)
{
RadioButton button = (RadioButton)sender;
m_selectedBrush = button.Checked ? (TerrainBrush)button.Tag : null;
if (m_selectedBrush == null)
{
m_brushProps.Bind(null);
}
else
{
m_brushProps.Bind(m_selectedBrush);
}
}
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);
}
private void BrushRdoCheckedChanged(object sender, EventArgs e)
{
RadioButton button = (RadioButton)sender;
m_selectedBrush = button.Checked ? (TerrainBrush)button.Tag : null;
if (m_selectedBrush == null)
m_brushProps.Bind(new object());
else
m_brushProps.Bind(m_selectedBrush);
}
void IManipulator.OnEndDrag(ViewControl vc, Point scrPt)
{
if (!dragged)
{
ApplyBrush(vc, scrPt);
}
dragged = false;
if (m_tmpOps.Count > 0)
{
TerrainBrush brush = m_terrainEditor.TerrainEditorControl.SelectedBrush;
string transName = string.Format("Apply {0} brush", brush.Name);
GameContext context = m_designView.Context.As <GameContext>();
context.DoTransaction(
delegate
{
foreach (var op in m_tmpOps)
{
context.TransactionOperations.Add(op);
}
}, transName);
m_tmpOps.Clear();
}
if (m_memUsage > MemoryQuota)
{
m_memUsage = 0;
// removed all the TerrainOps that been GC-ed
// and re-compute current memory usage.
List <WeakReference> tmplist = new List <WeakReference>();
foreach (WeakReference wkref in m_terrainOpList)
{
if (!wkref.IsAlive)
{
tmplist.Add(wkref);
}
else
{
m_memUsage += ((TerrainOp)wkref.Target).SizeInBytes;
}
}
if (m_memUsage == 0)
{
m_terrainOpList.Clear();
}
else
{
foreach (WeakReference wkref in tmplist)
{
m_terrainOpList.Remove(wkref);
}
}
// disable oldest terrainOP to free memory.
int limit = MemoryQuota - MemoryQuota / 5;
foreach (WeakReference wkref in m_terrainOpList)
{
if (m_memUsage < limit)
{
break;
}
TerrainOp op = (TerrainOp)wkref.Target;
m_memUsage -= op.SizeInBytes;
op.FreeData();
}
}
}
public void DrawBrush(TerrainBrush brush, Vec2F drawscale, Vec3F posW)
{
INativeObject nobj = this.As<INativeObject>();
DrawBrushArgs arg;
arg.falloff = brush.Falloff;
arg.radius = (float)brush.Radius;
arg.posW = posW;
arg.drawscale = drawscale;
IntPtr argPtr = new IntPtr(&arg);
IntPtr retval;
nobj.InvokeFunction("DrawBrush", argPtr, out retval);
}
