public override void Initialize(int width, int height)
{
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
GL.PointSize(5f);
test.Normal = new Vector3(0f, 1f, 0.5f);
aabbs[0] = new AABB(new Point(-2f, -2f, -2f), new Point(-1f, -1f, -1f));
aabbs[1] = new AABB(new Point(2f, 1f, 2f), new Point(4f, 3f, 4f));
aabbs[2] = new AABB(new Point(1f, 0f, 1f), new Point(0f, -1f, 0f));
aabbs[3] = new AABB(new Point(5f, 5f, 5f), new Point(-5f, -5f, -5f));
bool[] results = new bool[] {
false, false, true, true
};
int t = 0;
for (int i = 0; i < aabbs.Length; ++i)
{
if (Intersects.AABBPlaneIntersect(aabbs[i], test) != results[t++])
{
LogError("Expected aabb " + i + " to " +
(results[t - 1] ? "intersect" : "not intersect") +
" the plane");
}
}
}
public override void Initialize(int width, int height)
{
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
aabbs[0] = new AABB(new Point(-0.5f, -2f, -0.5f), new Point(0.5f, 2f, 0.5f));
aabbs[1] = new AABB();
aabbs[2] = new AABB(new Point(1f, 1f, 1f), new Point(3f, 3f, 3f));
aabbs[3] = new AABB(new Point(-3f, -3f, -3f), new Point(-4f, -4f, -4f));
bool[] results = new bool[] {
true, true, false, false, true, true, true, false, false,
true, true, false, false, false, false, true,
};
int t = 0;
for (int i = 0; i < aabbs.Length; ++i)
{
for (int j = 0; j < aabbs.Length; ++j)
{
if (Intersects.AABBAABBIntersect(aabbs[i], aabbs[j]) != results[t++])
{
LogError("aabb " + i + " and " + j + " should " +
(results[t - 1] ? "" : "not ") + "intersect"
);
}
}
}
}
public override void Initialize(int width, int height)
{
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
GL.PointSize(5f);
planes[0] = new Plane();
planes[1] = new Plane(new Vector3(0f, 1f, 0.2f), 3f);
planes[2] = new Plane(new Vector3(0f, 1f, 0f), -2f);
planes[3] = new Plane(new Vector3(-1f, 1f, 2f), 3f);
planes[4] = new Plane(new Vector3(1f, 0f, 0f), 3f);
bool[] results = new bool[] {
true, false, true, false, true
};
int t = 0;
for (int i = 0; i < planes.Length; ++i)
{
if (Intersects.SpherePlaneIntersect(planes[i], test) != results[t++])
{
LogError("Expected plane " + i + " to " +
(results[t - 1] ? "intersect" : "not intersect") +
" the sphere");
}
}
}
public override void Initialize(int width, int height)
{
GL.Enable(EnableCap.DepthTest);
GL.Enable(EnableCap.CullFace);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
spheres[0] = new Sphere(new Point(0f, 0f, 0f), 2f);
spheres[1] = new Sphere(new Point(0f, 3.5f, 0f), 1f);
spheres[2] = new Sphere(new Point(0f, -3f, 0f), 1f);
spheres[3] = new Sphere(new Point(1f, 0f, 0f), 1f);
bool[] results = new bool[] {
true, false, true, true, false, true, false, false, true,
false, true, false, true, false, false, true
};
int t = 0;
for (int i = 0; i < spheres.Length; ++i)
{
for (int j = 0; j < spheres.Length; ++j)
{
if (Intersects.SphereSphereIntersect(spheres[i], spheres[j]) != results[t++])
{
LogError("sphere " + i + " and " + j + " should " +
(results[t - 1] ? "" : "not ") + "intersect"
);
}
}
}
}
public bool Insert(OBJ obj)
{
//bounding sphere is model space, we need world
Sphere worldSpaceSphere = new Sphere();
worldSpaceSphere.Position = new Point(Matrix4.MultiplyPoint(obj.WorldMatrix, obj.BoundingSphere.Position.ToVector()));
float scale = Math.Max(obj.WorldMatrix[0, 0], Math.Max(obj.WorldMatrix[1, 1], obj.WorldMatrix[2, 2]));
worldSpaceSphere.Radius = obj.BoundingSphere.Radius * scale;
if (Intersects.SphereAABBIntersect(worldSpaceSphere, Bounds))
{
//we know obj intersects node if a leaf
//add to list, if not recurse
if (Children != null)
{
foreach (OctreeNode child in Children)
{
child.Insert(obj);
}
}
else
{
Contents.Add(obj);
}
return(true);
}
return(false);
}
public void RemoveRange()
{
var data = new List <Person> {
new Person(), new Person(), new Person()
};
var itemsToRemove = data.Take(2).ToList();
var sut = new FakeDbSet <Person>(data);
var result = sut.RemoveRange(itemsToRemove);
Assert.That(data, !Intersects.With(itemsToRemove));
Assert.That(result, Is.EquivalentTo(itemsToRemove));
}
public override void Render()
{
base.Render();
DrawOrigin();
for (int i = 0; i < aabbs.Length; ++i)
{
GL.Color3(0f, 0f, 1f);
if (Intersects.AABBPlaneIntersect(test, aabbs[i]))
{
GL.Color3(1f, 0f, 0f);
}
aabbs[i].Render();
}
GL.Color3(0f, 0f, 1f);
test.Render(5f);
}
public override void Render()
{
base.Render();
DrawOrigin();
for (int i = 0; i < aabbs.Length; ++i)
{
GL.Color3(0f, 0f, 1f);
for (int j = 0; j < aabbs.Length; ++j)
{
if (i != j && Intersects.AABBAABBIntersect(aabbs[i], aabbs[j]))
{
GL.Color3(1f, 0f, 0f);
break;
}
}
aabbs[i].Render();
}
}
public override void Render()
{
base.Render();
DrawOrigin();
for (int i = 0; i < spheres.Length; ++i)
{
GL.Color3(0f, 0f, 1f);
for (int j = 0; j < spheres.Length; ++j)
{
if (i != j && Intersects.SphereSphereIntersect(spheres[i], spheres[j]))
{
GL.Color3(1f, 0f, 0f);
break;
}
}
spheres[i].Render();
}
}
public override void Render()
{
base.Render();
DrawOrigin();
GL.Disable(EnableCap.CullFace);
for (int i = 0; i < planes.Length; ++i)
{
GL.Color3(0f, 0f, 1f);
if (Intersects.SpherePlaneIntersect(test, planes[i]))
{
GL.Color3(1f, 0f, 0f);
}
planes[i].Render();
}
GL.Enable(EnableCap.CullFace);
GL.Color3(0f, 0f, 1f);
test.Render();
}
public override void Render()
{
GL.Disable(EnableCap.Lighting);
base.Render();
DrawOrigin();
GL.Enable(EnableCap.Lighting);
GL.Color3(0f, 0f, 1f);
foreach (OBJ obj in objs)
{
obj.Render();
}
GL.Disable(EnableCap.Lighting);
GL.Disable(EnableCap.CullFace);
float t = 0;
foreach (Ray test in tests)
{
bool intersection = false;
foreach (OBJ obj in objs)
{
if (Intersects.OBJRaycast(test, obj, out t))
{
intersection = true;
}
}
if (intersection)
{
GL.Color3(0f, 1f, 0f);
}
else
{
GL.Color3(1f, 0f, 0f);
}
test.Render();
}
GL.Enable(EnableCap.CullFace);
GL.Enable(EnableCap.Lighting);
}
public OBJ Raycast(Ray ray, out float t)
{
debugVisited = true;
//none leaf nodes
if (Children != null)
{
foreach (OctreeNode child in Children)
{
//AABB Ray intersection?
if (LinesAndRays.RaycastAABB(ray, child.Bounds, out t))
{
//recursively call raycast
OBJ result = child.Raycast(ray, out t);
//return whatever is hit
if (result != null)
{
return(result);
}
}
}
}
//leaf node
//bounds already intersect ray
else if (Contents != null)
{
//loop through all children
foreach (OBJ content in Contents)
{
//return first hit child
if (Intersects.OBJRaycast(ray, content, out t))
{
return(content);
}
}
}
t = 0f;
return(null);
}
private bool IntersectsWithSelection(Vehicle vehicle, Vector2 topLeftV, Vector2 bottomRightV)
{
//Buffer selection
topLeftV.X -= 20f;
topLeftV.Y -= 20f;
bottomRightV.X += 20f;
bottomRightV.Y += 20f;
//Cheap calculation if our selection box has intersected with the center of a vehicle
Vector2 vehicleLocation = vehicle.GetPosition();
if (vehicleLocation.X > topLeftV.X && vehicleLocation.X < bottomRightV.X && vehicleLocation.Y > topLeftV.Y && vehicleLocation.Y < bottomRightV.Y)
{
return(true);
}
//Else we will do a rotated bounding box detection
BoundingBox boundingBoxVehicle = new BoundingBox(vehicle.GetSize(), vehicleLocation, vehicle.GetDirectionRadian());
BoundingBox boundingBoxSelection = new BoundingBox(topLeftV, bottomRightV);
return(Intersects.IsBoundingBoxCollision(boundingBoxVehicle, boundingBoxSelection));
}
public override void Render()
{
GL.Disable(EnableCap.Lighting);
base.Render();
DrawOrigin();
GL.Enable(EnableCap.Lighting);
GL.Color3(0f, 0f, 1f);
foreach (OBJ obj in objs)
{
obj.Render();
}
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Line);
GL.Disable(EnableCap.Lighting);
foreach (AABB test in tests)
{
bool intersection = false;
foreach (OBJ obj in objs)
{
if (Intersects.OBJAABBIntersect(test, obj))
{
intersection = true;
}
}
if (intersection)
{
GL.Color3(0f, 1f, 0f);
}
else
{
GL.Color3(1f, 0f, 0f);
}
test.Render();
}
GL.Enable(EnableCap.Lighting);
GL.PolygonMode(MaterialFace.FrontAndBack, PolygonMode.Fill);
}
public bool Intersects(Block block)
{
return(Intersects(block, (0, 0)));
}