private Vector3 raycastGroundPlaneCursor()
{
Ray ray = game.GetWereldViewRay(new Vector2(game.Mouse.CursorPosition.X, game.Mouse.CursorPosition.Y));
Vector3 pos = World.Raycast(ray);
return(pos);
}
private TileFace RaycastTileFace(IXNAGame _game, WorldObject target)
{
var bb = target.ObjectType.TileData.GetBoundingBox();
var range = (bb.Max - bb.Min) * 0.5f;
Ray ray;
var targetMatrix = Matrix.Invert(target.WorldMatrix);
ray = _game.GetWereldViewRay(_game.Mouse.CursorPositionVector);
ray.Position = Vector3.Transform(ray.Position, targetMatrix);
ray.Direction = Vector3.TransformNormal(ray.Direction, targetMatrix);
raycasterFace.Reset();
Vector3 normal;
Vector3 up;
Vector3 right;
for (int i = 0; i < 6; i++)
{
var face = (TileFace)(i + 1);
normal = TileSnapInformationBuilder.getFaceNormal(face);
up = TileSnapInformationBuilder.getFaceUp(face);
right = Vector3.Cross(up, normal);
var scaledNormal = normal * Math.Abs(Vector3.Dot(normal, range));
var scaledUp = up * Math.Abs(Vector3.Dot(up, range));
var scaledRight = right * Math.Abs(Vector3.Dot(right, range));
var v1 = scaledNormal + scaledUp +
scaledRight;
var v2 = scaledNormal + scaledUp -
scaledRight;
var v3 = scaledNormal - scaledUp +
scaledRight;
var v4 = scaledNormal - scaledUp -
scaledRight;
float?result;
Functions.RayIntersectsSquare(ref ray, ref v1, ref v2, ref v3, ref v4, out result);
raycasterFace.AddResult(result, face);
}
return(raycasterFace.ClosestObject);
}
private WorldObject RaycastWorldTile(IXNAGame _game)
{
raycaster.Reset();
Ray ray;
for (int i = 0; i < World.WorldObjectList.Count(); i++)
{
var obj = (WorldObject)World.WorldObjectList[i];
var objectMatrix = Matrix.Invert(obj.WorldMatrix);
var objBB = obj.ObjectType.TileData.GetBoundingBox();
ray = _game.GetWereldViewRay(_game.Mouse.CursorPositionVector);
ray.Position = Vector3.Transform(ray.Position, objectMatrix);
ray.Direction = Vector3.TransformNormal(ray.Direction, objectMatrix);
raycaster.AddResult(ray.Intersects(objBB), (WorldObject)World.WorldObjectList[i]);
}
return(raycaster.ClosestObject);
}