public void IntersectsRectangle()
{
Assert.IsTrue(circle3.Intersects(rect1), "1");
Assert.IsTrue(circle2.Intersects(rect1), "2");
var c = new BoundingCircle(5, 5, 1);
Assert.IsFalse(c.Intersects(rect2), "1");
Assert.IsFalse(c.Intersects(rect2), "2");
}
void FixedUpdate()
{
ExplosionStrength = FindObjectOfType <ExplosionStrengthText>().slider.value; //Set Strength to be slider value
ExplosionRadius = FindObjectOfType <ExplosionRadiusText>().slider.value; //Set radius to be slider value
//THIS IS HOW YOU DO GRAVITY BUT OPPOSITE THIS REPELS THE OBJECTS
ExplosionBounds = new BoundingCircle(Transformation.Translation, ExplosionRadius); //Set bounds of explosion
Transformation = GetComponent <myTransformation>(); //Get Transformation component of object
BoundingCircle Bounds = new BoundingCircle(new MyVector3(0, 0, 0), ExplosionRadius); //Bounds Of explosion
Bounds = ExplosionBounds as BoundingCircle; //Set bounds to be xplosion bounds
Bounds.CentrePoint = Transformation.Translation; //Make sure centre point is position of expplosion
Object = FindObjectsOfType <MyPhysics>(); //Find all physic objects
for (int i = 0; i < Object.Length; i++)
{
if (Bounds.Intersects(Object[i].Transformation.BoundObject))
{
float Radius = float.MinValue; //Set radius to be minium value
if (Object[i].Transformation.BoundObject is AABB)
{
AABB Box1 = Object[i].Transformation.BoundObject as AABB; //Get the object collision box
if (Box1.MaxExtent.x > Radius)
{
Radius = Box1.MaxExtent.x; //Set radius to be max extent x
}
if (Box1.MaxExtent.y > Radius)
{
Radius = Box1.MaxExtent.y; //Set radius to be max extent y
}
if (Box1.MaxExtent.z > Radius)
{
Radius = Box1.MaxExtent.z; //Set radius to be max extent z
}
}
if (Object[i].Transformation.BoundObject is BoundingCircle)
{
BoundingCircle Sphere1 = Object[i].Transformation.BoundObject as BoundingCircle; //Get the object bounding sphere
Radius = Sphere1.Radius; //Set radius to be object radius
}
ExplosionForce = VectorMaths.VectorNormalized(Object[i].Transformation.Translation - Transformation.Translation) * ExplosionStrength; //Set force of explosion to be normalised of object postion - explosion position
Object[i].Force += ExplosionForce; //Increase object force by explosion force
CentreOfMass = Transformation.Translation; //SEt centre of mass to explosion point
Distance = Object[i].Transformation.Translation - Transformation.Translation; //Distance from object to explosion
Normalised = VectorMaths.VectorNormalized(Distance); //Normalised Distance
ImpactPoint = Normalised * Radius; //Set impact point to be normalised * radius
ExplosionTorque = VectorMaths.VectorCrossProduct(ExplosionForce, CentreOfMass - ImpactPoint); //Toorque os the cross product of explosion force and centre of mass - impact point
Object[i].torque += ExplosionTorque; //Torque is increaess by explosion torque
}
}
}
public void IsCollidingWithRectangleWorks()
{
var rect = new BoundingRectangle(Vector2d.Zero, new Size2d(10, 6))
{
Position = new Vector2d(5, 3)
};
var circle = new BoundingCircle(Vector2d.Zero, 3)
{
Position = new Vector2d(14, 3)
};
Assert.False(circle.Intersects(rect));
circle.Position.X--;
Assert.True(circle.Intersects(rect));
rect.Rotation = Math.PI * .5;
rect.Position.X = 3;
rect.Position.Y = 5;
circle.Position.X = 8;
circle.Position.Y = 12;
Assert.True(circle.Intersects(rect));
circle = new BoundingCircle(Vector2d.Zero, 50)
{
Position = new Vector2d(156, 165)
};
rect = new BoundingRectangle(Vector2d.Zero, new Size2d(200, 100))
{
Position = new Vector2d(300, 200)
};
Assert.True(circle.Intersects(rect));
circle.Position.X = 300;
circle.Position.Y = 350;
Assert.False(circle.Intersects(rect));
}
public void IsCollidingWithOtherCircleWorks()
{
var circle1 = new BoundingCircle(Vector2d.Zero, 10)
{
Position = new Vector2d(10, 5)
};
var circle2 = new BoundingCircle(Vector2d.Zero, 6)
{
Position = new Vector2d(17, 5)
};
Assert.True(circle1.Intersects(circle2));
circle2.Position.X = -5;
Assert.True(circle1.Intersects(circle2));
circle2.Position.X = -6;
Assert.False(circle1.Intersects(circle2));
}
bool IRaySegmentsCollidable.TryGetRayCollision(Body thisBody, Body raysBody, RaySegmentsShape raySegments, out RaySegmentIntersectionInfo info)
{
bool intersects = false;
RaySegment[] segments = raySegments.Segments;
Scalar[] result = new Scalar[segments.Length];
BoundingCircle bounding = new BoundingCircle(Vector2D.Zero, this.radius);
Matrix2x3 vertexM = thisBody.Matrices.ToBody * raysBody.Matrices.ToWorld;
for (int index = 0; index < segments.Length; ++index)
{
RaySegment segment = segments[index];
Ray ray2;
Vector2D.Transform(ref vertexM, ref segment.RayInstance.Origin, out ray2.Origin);
Vector2D.TransformNormal(ref vertexM, ref segment.RayInstance.Direction, out ray2.Direction);
Scalar temp;
bounding.Intersects(ref ray2, out temp);
if (temp >= 0 && temp <= segment.Length)
{
intersects = true;
result[index] = temp;
continue;
}
else
{
result[index] = -1;
}
}
if (intersects)
{
info = new RaySegmentIntersectionInfo(result);
}
else
{
info = null;
}
return(intersects);
}
bool IRaySegmentsCollidable.TryGetRayCollision(Body thisBody, Body raysBody, RaySegmentsShape raySegments, out RaySegmentIntersectionInfo info)
{
bool intersects = false;
RaySegment[] segments = raySegments.Segments;
Scalar[] result = new Scalar[segments.Length];
BoundingCircle bounding = new BoundingCircle(Vector2D.Zero, this.radius);
Matrix2x3 vertexM = thisBody.Matrices.ToBody * raysBody.Matrices.ToWorld;
for (int index = 0; index < segments.Length; ++index)
{
RaySegment segment = segments[index];
Ray ray2;
Vector2D.Transform(ref vertexM, ref segment.RayInstance.Origin, out ray2.Origin);
Vector2D.TransformNormal(ref vertexM, ref segment.RayInstance.Direction, out ray2.Direction);
Scalar temp;
bounding.Intersects(ref ray2, out temp);
if (temp >= 0 && temp <= segment.Length)
{
intersects = true;
result[index] = temp;
continue;
}
else
{
result[index] = -1;
}
}
if (intersects)
{
info = new RaySegmentIntersectionInfo(result);
}
else
{
info = null;
}
return intersects;
}
public void IntersectsRectangle()
{
Assert.IsTrue(circle3.Intersects(rect1), "1");
Assert.IsTrue(circle2.Intersects(rect1), "2");
BoundingCircle c = new BoundingCircle(5, 5, 1);
Assert.IsFalse(c.Intersects(rect2), "1");
Assert.IsFalse(c.Intersects(rect2), "2");
}
public void IntersectsCircle()
{
Assert.IsTrue(circle1.Intersects(circle1), "1");
Assert.IsTrue(circle1.Intersects(circle2), "2");
Assert.IsFalse(circle1.Intersects(new BoundingCircle(0, 6, 3)), "3");
}