public ShapeSide(ShapeSide s)
{
points = new List <int>(s.points);
host = s.host;
drawing_pen = s.drawing_pen.Clone() as Pen;
Normal = new Point(s.Normal);
}
public void build_scene()
{
Shape room = Shape.get_cube(10);
//сторона комнаты
up_left = room.sides[0].get_point(0);
up_right = room.sides[0].get_point(1);
down_right = room.sides[0].get_point(2);
down_left = room.sides[0].get_point(3);
Point normal = ShapeSide.norm(room.sides[0]); // нормаль стороны комнаты
Point center = (up_left + up_right + down_left + down_right) / 4; // центр стороны комнаты
focus = center + normal * 10;
room.set_pen(new Pen(Color.Gray));
room.sides[0].drawing_pen = new Pen(Color.Yellow);
room.sides[3].drawing_pen = new Pen(Color.Red);
room.sides[2].drawing_pen = new Pen(Color.Green);
room.sides[1].drawing_pen = new Pen(Color.Blue);
room.figure_material = new Material(0f, 0, 0.2f, 0.7f);
Light l1 = new Light(new Point(0f, 2f, 4.9f), new Point(1f, 1f, 1f));
//Light l2 = new Light(new Point(4.5f, -1f, 4f), new Point(1f, 1f, 1f));
lights.Add(l1);
//lights.Add(l2);
//прозрачная сфера
ShapeSphere s1 = new ShapeSphere(new Point(-2.5f, 3, -4f), 1f);
s1.set_pen(new Pen(Color.White));
s1.figure_material = new Material(0f, 0.9f, 0.1f, 0f, 1.3f);
//зеркальная сфера
ShapeSphere s2 = new ShapeSphere(new Point(1.5f, 2, -3.7f), 1.5f);
s2.set_pen(new Pen(Color.White));
s2.figure_material = new Material(0.9f, 0f, 0f, 0.1f, 1.5f);
//куб
Shape cube = Shape.get_cube(3.0f);
cube.offset(-2.5f, -1, -3.5f);
cube.rotate_around(55, "CZ");
cube.set_pen(new Pen(Color.Purple));
cube.figure_material = new Material(0f, 0f, 0.3f, 0.7f, 1.5f);
scene.Add(room);
scene.Add(cube);
scene.Add(s1);
scene.Add(s2);
}
public static Point norm(ShapeSide S)
{
if (S.points.Count() < 3)
{
return(new Point(0, 0, 0));
}
Point U = S.get_point(1) - S.get_point(0);
Point V = S.get_point(S.points.Count - 1) - S.get_point(0);
Point normal = U * V;
return(Point.norm(normal));
}
//-------------------------------------------------------------------------------------------------------
// пересечение луча с фигурой
public virtual bool figure_intersection(Ray r, out float intersect, out Point normal)
{
intersect = 0;
normal = null;
ShapeSide sd = null;
foreach (ShapeSide s in sides)
{
if (s.points.Count == 3)
{
float t;
if (ray_intersects_triangle(r, s.get_point(0), s.get_point(1), s.get_point(2), out t) && (intersect == 0 || t < intersect))
{
intersect = t;
sd = s;
}
}
else if (s.points.Count == 4)
{
float t;
if (ray_intersects_triangle(r, s.get_point(0), s.get_point(1), s.get_point(3), out t) && (intersect == 0 || t < intersect))
{
intersect = t;
sd = s;
}
else if (ray_intersects_triangle(r, s.get_point(1), s.get_point(2), s.get_point(3), out t) && (intersect == 0 || t < intersect))
{
intersect = t;
sd = s;
}
}
}
if (intersect != 0)
{
normal = ShapeSide.norm(sd);
figure_material.clr = new Point(sd.drawing_pen.Color.R / 255f, sd.drawing_pen.Color.G / 255f, sd.drawing_pen.Color.B / 255f);
return(true);
}
return(false);
}
/// ------------------------ГОТОВЫЕ ФИГУРЫ-----------------------------
static public Shape get_cube(float sz)
{
Shape res = new Shape();
res.points.Add(new Point(sz / 2, sz / 2, sz / 2)); // 0
res.points.Add(new Point(-sz / 2, sz / 2, sz / 2)); // 1
res.points.Add(new Point(-sz / 2, sz / 2, -sz / 2)); // 2
res.points.Add(new Point(sz / 2, sz / 2, -sz / 2)); //3
res.points.Add(new Point(sz / 2, -sz / 2, sz / 2)); // 4
res.points.Add(new Point(-sz / 2, -sz / 2, sz / 2)); //5
res.points.Add(new Point(-sz / 2, -sz / 2, -sz / 2)); // 6
res.points.Add(new Point(sz / 2, -sz / 2, -sz / 2)); // 7
ShapeSide s = new ShapeSide(res);
s.points.AddRange(new int[] { 3, 2, 1, 0 });
res.sides.Add(s);
s = new ShapeSide(res);
s.points.AddRange(new int[] { 4, 5, 6, 7 });
res.sides.Add(s);
s = new ShapeSide(res);
s.points.AddRange(new int[] { 2, 6, 5, 1 });
res.sides.Add(s);
s = new ShapeSide(res);
s.points.AddRange(new int[] { 0, 4, 7, 3 });
res.sides.Add(s);
s = new ShapeSide(res);
s.points.AddRange(new int[] { 1, 5, 4, 0 });
res.sides.Add(s);
s = new ShapeSide(res);
s.points.AddRange(new int[] { 2, 3, 7, 6 });
res.sides.Add(s);
return(res);
}
