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);
}
}
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 bool Pick(ViewControl vc, Point scrPt)
{
m_highlightMaterialGUID = ~0ul;
m_highlight.Clear();
var ray = vc.GetWorldRay(scrPt);
var endPt = ray.Origin + vc.Camera.FarZ * ray.Direction;
var nativeVC = vc as GUILayer.IViewContext;
if (nativeVC == null)
{
return(false);
}
// do an intersection test here, and find the material under the cursor
var pick = XLEBridgeUtils.Picking.RayPick(
nativeVC, ray, XLEBridgeUtils.Picking.Flags.Objects);
if (pick != null && pick.Length > 0)
{
m_highlightMaterialGUID = pick[0].materialGuid;
m_highlight.Add(pick[0].documentId, pick[0].instanceId);
using (var placements = nativeVC.SceneManager.GetPlacementsEditor())
{
m_highlight.DoFixup(placements);
}
}
return(true);
}
public override bool MouseDown(object sender, MouseEventArgs e)
{
if (InputScheme.ActiveControlScheme.IsControllingCamera(KeysInterop.ToAtf(Control.ModifierKeys), MouseEventArgsInterop.ToAtf(e)))
{
m_lastMousePointX = e.Location.X;
m_lastMousePointY = e.Location.Y;
m_dragging = true;
return(true);
}
if (Control.ModifierKeys.HasFlag(Keys.Control) && !Control.ModifierKeys.HasFlag(Keys.Shift) && e.Button == MouseButtons.Left)
{
// "control + l click" repositions the "focus" point of the camera
// -- it's just incredibly useful to be able to manually set the point, because it
// allows the user to specify both the speed of the movement of the camera and
// the orbit of the camera in a natural way
//
// We could expand "ActiveControlScheme" to allow this key binding to be rebound...
// but just using fixed binding for now.
// This is a very important key combination (it's just really useful to be able to move
// the focus around quickly) -- so it should be accessable with any easy combination from
// anywhere!
ViewControl c = sender as ViewControl;
GUILayer.IViewContext vc = sender as GUILayer.IViewContext;
if (c != null && vc != null)
{
// We can use XLEBridgeUtils to do the ray test. This will
// execute the native code (which in turn performs the intersection
// on the GPU)
// Note that we're using the more complex picking interface because
// we want to use explicitly pass "Camera" (rather than
// getting it from the view control)
var hit = XLEBridgeUtils.Picking.RayPick(
GUILayer.EngineDevice.GetInstance(),
vc.SceneManager, vc.TechniqueContext,
c.GetWorldRay(e.Location), XLEBridgeUtils.Utils.AsCameraDesc(Camera), c.ClientSize,
XLEBridgeUtils.Picking.Flags.AllWorldObjects);
if (hit != null && hit.Length > 0)
{
Vec3F transformedPt;
Camera.AxisSystem.Transform(hit[0].hitPt, out transformedPt);
Camera.Set(Camera.Eye, transformedPt, Camera.Up);
}
}
return(true);
}
return(base.MouseDown(sender, e));
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_hitRegion == HitRegion.None || m_activeOp == null || m_activeOp.NodeList.Count == 0)
{
return;
}
// create ray in view space.
Ray3F rayV = vc.GetWorldRay(scrPt);
using (var intersectionScene = GameEngine.GetEditorSceneManager().GetIntersectionScene())
{
Vec3F intersectionPt;
if (!CalculateTerrainIntersection(vc, rayV, intersectionScene, out intersectionPt))
{
return;
}
if (m_pendingStartPt)
{
m_startPt = intersectionPt;
m_pendingStartPt = false;
}
else
{
bool clampToSurface = Control.ModifierKeys == Keys.Shift;
Vec3F translate = new Vec3F(intersectionPt.X - m_startPt.X, intersectionPt.Y - m_startPt.Y, 0.0f);
for (int i = 0; i < m_activeOp.NodeList.Count; i++)
{
ITransformable node = m_activeOp.NodeList[i];
Path <DomNode> path = new Path <DomNode>(Adapters.Cast <DomNode>(node).GetPath());
Matrix4F parentLocalToWorld = TransformUtils.CalcPathTransform(path, path.Count - 2);
Matrix4F parentWorldToLocal = new Matrix4F();
parentWorldToLocal.Invert(parentLocalToWorld);
Vec3F newWorldPos = m_originalTranslations[i] + translate;
float terrainHeight = 0.0f;
if (GUILayer.EditorInterfaceUtils.GetTerrainHeight(
out terrainHeight, intersectionScene, newWorldPos.X, newWorldPos.Y))
{
newWorldPos.Z = terrainHeight + (clampToSurface ? 0.0f : m_originalHeights[i]);
Vec3F localTranslation;
parentWorldToLocal.TransformVector(newWorldPos, out localTranslation);
node.Translation = localTranslation;
}
}
}
}
}
private bool HitTest(out Vec3F result, Point pt, ViewControl vc)
{
var ray = vc.GetWorldRay(pt);
var pick = XLEBridgeUtils.Picking.RayPick(
vc as GUILayer.IViewContext, ray, XLEBridgeUtils.Picking.Flags.Terrain);
if (pick != null && pick.Length > 0)
{
result = pick[0].hitPt;
return(true);
}
result = new Vec3F(0.0f, 0.0f, 0.0f);
return(false);
}
public void OnEndDrag(ViewControl vc, Point scrPt)
{
var ray = vc.GetWorldRay(scrPt);
var endPt = ray.Origin + vc.Camera.FarZ * ray.Direction;
// do an intersection test here, and find the material under the cursor
var pick = XLEBridgeUtils.Picking.RayPick(
vc as GUILayer.IViewContext, ray, XLEBridgeUtils.Picking.Flags.Objects);
if (pick != null && pick.Length > 0)
{
Context.PreviewModelName = pick[0].modelName;
Context.PreviewModelBinding = pick[0].materialGuid;
Context.MaterialName = pick[0].materialName;
}
m_highlightMaterialGUID = ~0ul;
m_highlight.Clear();
}
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);
}
public override void OnDragging(ViewControl vc, Point scrPt)
{
if (m_hitRegion == HitRegion.None || m_activeOp == null || m_activeOp.NodeList.Count == 0)
{
return;
}
// create ray in view space.
Ray3F rayV = vc.GetWorldRay(scrPt);
using (var intersectionScene = GameEngine.GetEditorSceneManager().GetIntersectionScene())
{
PickResult intersectionPt;
if (!CalculateTerrainIntersection(vc, rayV, intersectionScene, out intersectionPt))
{
return;
}
if (m_pendingStartPt)
{
m_startPt = intersectionPt._pt.Value;
m_pendingStartPt = false;
}
else
{
ISnapSettings snapSettings = (ISnapSettings)DesignView;
bool clampToSurface = Control.ModifierKeys == Keys.Shift;
var pt = intersectionPt._pt.Value;
Vec3F translate = new Vec3F(pt.X - m_startPt.X, pt.Y - m_startPt.Y, 0.0f);
for (int i = 0; i < m_activeOp.NodeList.Count; i++)
{
ITransformable node = m_activeOp.NodeList[i];
Path <DomNode> path = new Path <DomNode>(Adapters.Cast <DomNode>(node).GetPath());
Matrix4F parentLocalToWorld = TransformUtils.CalcPathTransform(path, path.Count - 2);
Matrix4F parentWorldToLocal = new Matrix4F();
parentWorldToLocal.Invert(parentLocalToWorld);
Vec3F newWorldPos = m_originalTranslations[i] + translate;
float terrainHeight = 0.0f;
GUILayer.Vector3 terrainNormal;
if (GUILayer.EditorInterfaceUtils.GetTerrainHeightAndNormal(
out terrainHeight, out terrainNormal,
intersectionScene, newWorldPos.X, newWorldPos.Y))
{
newWorldPos.Z = terrainHeight + (clampToSurface ? 0.0f : m_originalHeights[i]);
Vec3F localTranslation;
parentWorldToLocal.TransformVector(newWorldPos, out localTranslation);
node.Translation = localTranslation;
// There are two ways to orient the "up" vector of the object.
// One way is to decompose the 3x3 rotation matrix into a up vector + a rotation around
// that vector. Then we retain the rotation, and just move the up vector.
// Another way is to take the 3x3 matrix, and adjust it's up vector. Then just perform
// the Gram–Schmidt algorithm to re-orthogonalize it.
// We'll use the code from the SCEE level editor. This isn't the ideal math (there's a
// lot of room for floating point creep) but it should work.
var currentUp = node.Transform.ZAxis;
if (snapSettings.TerrainAlignment == TerrainAlignmentMode.TerrainUp)
{
node.Rotation = TransformUtils.RotateToVector(
node.Rotation, new Vec3F(terrainNormal.X, terrainNormal.Y, terrainNormal.Z),
AxisSystemType.ZIsUp);
}
else
if (snapSettings.TerrainAlignment == TerrainAlignmentMode.WorldUp)
{
// Prevent the change if the normal is already very close to straight up
if (Math.Abs(currentUp.X - 0.0f) > 1e-4f || Math.Abs(currentUp.Y - 0.0f) > 1e-4f || Math.Abs(currentUp.Z - 1.0f) > 1e-4f)
{
node.Rotation = TransformUtils.RotateToVector(
node.Rotation, new Vec3F(0.0f, 0.0f, 1.0f),
AxisSystemType.ZIsUp);
}
}
node.UpdateTransform();
}
}
}
}
}
