public BowlingPinObject(Matrix orientation, Vector3 position)
{
body = new Body();
collision = new CollisionSkin(body);
// add a capsule for the main corpus
Primitive capsule = new Capsule(Vector3.Zero, Matrix.Identity, 0.1f, 1.3f);
// add a small box at the buttom
Primitive box = new Box(new Vector3(-0.1f, -0.1f, -0.1f), Matrix.Identity, Vector3.One * 0.2f);
// add a sphere in the middle
Primitive sphere = new JigLibX.Geometry.Sphere(new Vector3(0.0f, 0.0f, 0.3f), 0.3f);
collision.AddPrimitive(capsule, new MaterialProperties(0.1f, 0.5f, 0.5f));
collision.AddPrimitive(box, new MaterialProperties(0.1f, 0.5f, 0.5f));
collision.AddPrimitive(sphere, new MaterialProperties(0.1f, 0.5f, 0.5f));
body.CollisionSkin = this.collision;
Vector3 com = SetMass(0.5f);
body.MoveTo(position, orientation);
collision.ApplyLocalTransform(new Transform(-com, Matrix.Identity));
body.EnableBody();
this.scale = Vector3.One * 10.0f;
}
public BowlingPin(Game game, Model model, Matrix orientation, Vector3 position)
: base(game, model)
{
body = new Body();
collision = new CollisionSkin(body);
// add a capsule for the main corpus
Primitive capsule = new Capsule(Vector3.Zero, Matrix.Identity, 0.1f, 1.3f);
// add a small box at the buttom
Primitive box = new Box(new Vector3(-0.1f,-0.1f,-0.1f), Matrix.Identity, Vector3.One * 0.2f);
// add a sphere in the middle
Primitive sphere = new Sphere(new Vector3(0.0f, 0.0f, 0.3f), 0.3f);
collision.AddPrimitive(capsule, new MaterialProperties(0.1f, 0.5f, 0.5f));
collision.AddPrimitive(box, new MaterialProperties(0.1f, 0.5f, 0.5f));
collision.AddPrimitive(sphere, new MaterialProperties(0.1f, 0.5f, 0.5f));
body.CollisionSkin = this.collision;
Vector3 com = SetMass(0.5f);
body.MoveTo(position, orientation);
collision.ApplyLocalTransform(new Transform(-com, Matrix.Identity));
body.EnableBody();
this.scale = Vector3.One * 10.0f;
}
public Gobject GetSphere(Vector3 pos, float radius, Model model, bool moveable)
{
Sphere spherePrimitive = new Sphere(pos, radius);
Gobject sphere = new Gobject(
pos,
Vector3.One * radius,
spherePrimitive,
model,
moveable,
0);
//newObjects.Add(sphere.ID, sphere);
return sphere;
}
public static bool SegmentSphereIntersection(out float ts, Segment seg, Sphere sphere)
{
Vector3 r = seg.Delta;
Vector3 s = seg.Origin - sphere.Position;
float radiusSq = sphere.Radius * sphere.Radius;
float rSq = r.LengthSquared();
ts = 0.0f;
if (rSq < radiusSq)
{
// starting inside
return false;
}
float sDotr = Vector3.Dot(s, r);
float sSq = s.LengthSquared();
float sigma = (sDotr * sDotr) - rSq * (sSq - radiusSq);
if (sigma < 0.0f)
return false;
float sigmaSqrt = (float)System.Math.Sqrt((float)sigma);
float lambda1 = (-sDotr - sigmaSqrt) / rSq;
float lambda2 = (-sDotr + sigmaSqrt) / rSq;
if (lambda1 > 1.0f || lambda2 < 0.0f)
return false;
// intersection!
ts = MathHelper.Max(lambda1, 0.0f);
return true;
}
public XBoneMapObject(Vector3 position, ref XModel model)
{
//create a list to hold the collision primitives
List <Primitive> prims = new List <Primitive>();
//parse for collision bones
foreach (ModelBone bone in model.Model.Bones)
{
string[] keypairs = bone.Name.ToLower().Split('_');
//if checks for valid naming convention on collision bones
if ((keypairs.Length == 2) && ((keypairs[0] == "sphere") || (keypairs[0] == "box") || (keypairs[0] == "capsule")))
{
//determine object number
int objectnum;
if ((keypairs[1] != "") || (keypairs[1] != null))
{
objectnum = int.Parse(keypairs[1]);
}
else
{
objectnum = 0;
}
//decompose bone transforms to components
Vector3 pos;
Vector3 scale;
Quaternion qrot;
bone.Transform.Decompose(out scale, out qrot, out pos);
Matrix rot = Matrix.CreateFromQuaternion(qrot);
//create collision primitive objects and add to list
switch (keypairs[0])
{
case ("sphere"):
JigLibX.Geometry.Sphere sph = new JigLibX.Geometry.Sphere(pos, scale.X);
prims.Add(sph);
break;
case ("box"):
Box box = new Box(pos, rot, scale);
prims.Add(box);
break;
case ("capsule"):
break;
}
}
}
body = new Body();
collision = new CollisionSkin(body);
if (prims.Count > 0)
{
foreach (Primitive prim in prims)
{
//TODO: Add ability to specify physics material type in art editor somehow
collision.AddPrimitive(prim, (int)JigLibX.Collision.MaterialTable.MaterialID.NormalSmooth);
}
}
else
{//no collision prims detected from XSI so create a default one here using the mesh bounding spheres
foreach (ModelMesh mesh in model.Model.Meshes)
{
//collision.AddPrimitive(new JigLibX.Geometry.Sphere(mesh.BoundingSphere.Center, mesh.BoundingSphere.Radius), new MaterialProperties(0.8f, 0.8f, 0.7f));
collision.AddPrimitive(new JigLibX.Geometry.Box(position, Matrix.Identity, new Vector3(mesh.BoundingSphere.Radius / 2f)), (int)JigLibX.Collision.MaterialTable.MaterialID.NormalRough);
}
}
body.CollisionSkin = this.collision;
Vector3 com = SetMass(1.0f);
body.MoveTo(position, Matrix.Identity);
collision.ApplyLocalTransform(new Transform(-com, Matrix.Identity));
body.EnableBody();
}
/// <summary>
/// AddSphere
/// </summary>
/// <param name="sphere"></param>
/// <param name="bb"></param>
public static void AddSphere(Sphere sphere, ref BoundingBox bb)
{
Vector3 radius = new Vector3(sphere.Radius);
Vector3 minSphere = sphere.Position;
Vector3 maxSphere = sphere.Position;
Vector3.Subtract(ref minSphere, ref radius, out minSphere);
Vector3.Add(ref maxSphere, ref radius, out maxSphere);
Vector3.Min(ref bb.Min, ref minSphere, out bb.Min);
Vector3.Max(ref bb.Max, ref maxSphere, out bb.Max);
}
