public bool IsPlanePicked(int mouseX, int mouseY)
{
// Construct our ray
Ray ray = Utilitys.CalculateRayFromCursor(Game.GraphicsDevice, Camera, mouseX, mouseY);
Vector3 min = new Vector3(Vertices[0].Position.X, Vertices[0].Position.Y, Vertices[0].Position.Z);
Vector3 max = new Vector3(Vertices[Vertices.Length - 1].Position.X,
Vertices[Vertices.Length - 1].Position.Y,
Vertices[Vertices.Length - 1].Position.Z);
BoundingBox bb = new BoundingBox(min, max);
if (bb.Intersects(ray) > 0)
{
// TODO: This needs reworking because we should almost segregate the difference between a Vertice Picking operation and the whole Object Picking operation!
// Invoke our delegate so we can manipulate this from outside our class
if (PickingOperation != null)
{
PickingOperation.Invoke(0);
}
}
return(false);
}
public bool IsVertPicked(int mouseX, int mouseY)
{
// Construct our ray
Ray ray = Utilitys.CalculateRayFromCursor(Game.GraphicsDevice, Camera, mouseX, mouseY);
// Calculate our Vertice Array
for (int x = 0; x < _width; x++)
{
for (int z = 0; z < _height; z++)
{
// Calc our Bounding Boxes
Vector3 min = new Vector3(Vertices[x + z * _width].Position.X,
Vertices[x + z * _width].Position.Y,
Vertices[x + z * _width].Position.Z);
Vector3 max = new Vector3(Vertices[x + z * _width].Position.X + 1,
Vertices[x + z * _width].Position.Y + 1,
Vertices[x + z * _width].Position.Z + 1);
BoundingBox bb = new BoundingBox(min, max);
// If we found a hit return it
if (bb.Intersects(ray) > 0)
{
// Invoke our delegate so we can manipulate this from outside our class
if (PickingOperation != null)
{
PickingOperation.Invoke(x + z * _width);
}
// Rebuild our vert array
VertexBuffer = new VertexBuffer(Game.GraphicsDevice, typeof(VertexPositionColorTexture), _width * _height, BufferUsage.WriteOnly);
VertexBuffer.SetData(Vertices);
return(true);
}
}
}
return(false);
}