public Vector3 MouseOverAxis(IViewportController viewportController, int x, int y)
{
Ray ray = viewportController.CreateViewportRay(x, y);
float th = 0.1f; // thickness
float len = 1.1f; // length
AxisAlignedBox xBox = CreateOffsetBox(new Vector3(0.0f, -th, -th), new Vector3(len, th, th));
AxisAlignedBox yBox = CreateOffsetBox(new Vector3(-th, 0.0f, -th), new Vector3(th, len, th));
AxisAlignedBox zBox = CreateOffsetBox(new Vector3(-th, -th, 0.0f), new Vector3(th, th, len));
if (ray.Intersects(xBox).first&& !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_X))
{
return(Vector3.UNIT_X);
}
if (ray.Intersects(yBox).first&& !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_Y))
{
return(Vector3.UNIT_Y);
}
if (ray.Intersects(zBox).first&& !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_Z))
{
return(Vector3.UNIT_Z);
}
return(Vector3.ZERO);
}
public new void MouseUp(IViewportController viewportController, MouseEventArgs e)
{
if (Editor.SelectionBox.SelectedObject != null)
{
Editor.SelectionBox.MouseUp(viewportController, e);
}
else
{
Ray ray = viewportController.CreateViewportRay(e.X, e.Y);
ISelectableObject selectedObject = null;
float d = float.MaxValue;
foreach (ISelectableObject selectable in Editor.SelectableObjects)
{
Pair <bool, float> pair = selectable.RayIntersects(ray, viewportController);
if (pair.first && pair.second < d)
{
d = pair.second;
selectedObject = selectable;
}
}
Editor.SelectionBox.SelectedObject = selectedObject;
}
}
public static Block SelectBlock(IViewportController viewportController, int x, int y)
{
Ray ray = viewportController.CreateViewportRay(x, y);
Block hitBlock = null;
float d = float.MaxValue;
foreach (Block block in Editor.Blocks)
{
Pair <bool, float> pair = ray.Intersects(block.BoundingBox);
if (pair.first && pair.second < d)
{
d = pair.second;
hitBlock = block;
}
}
return(hitBlock);
}
public static Block SelectBlock(IViewportController viewportController, int x, int y)
{
Ray ray = viewportController.CreateViewportRay(x, y);
Block hitBlock = null;
float d = float.MaxValue;
foreach (Block block in Editor.Blocks)
{
Pair<bool, float> pair = ray.Intersects(block.BoundingBox);
if (pair.first && pair.second < d)
{
d = pair.second;
hitBlock = block;
}
}
return hitBlock;
}
public Vector3 MouseOverAxis(IViewportController viewportController, int x, int y)
{
Ray ray = viewportController.CreateViewportRay(x, y);
float th = 0.1f; // thickness
float len = 1.1f; // length
AxisAlignedBox xBox = CreateOffsetBox(new Vector3(0.0f, -th, -th), new Vector3(len, th, th));
AxisAlignedBox yBox = CreateOffsetBox(new Vector3(-th, 0.0f, -th), new Vector3(th, len, th));
AxisAlignedBox zBox = CreateOffsetBox(new Vector3(-th, -th, 0.0f), new Vector3(th, th, len));
if (ray.Intersects(xBox).first && !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_X))
return Vector3.UNIT_X;
if (ray.Intersects(yBox).first && !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_Y))
return Vector3.UNIT_Y;
if (ray.Intersects(zBox).first && !viewportController.CameraController.IsLookingDownAxis(Vector3.UNIT_Z))
return Vector3.UNIT_Z;
return Vector3.ZERO;
}