Closes #1119 ## Changes: - New `ex.Collider` type which is the container for all collision related behavior and state. Actor is now extracted from collision. - Added interface `Clonable<T>` to indicate if an object contains a clone method - Added interface `Eventable<T>` to indicated if an object can emit and receive events - `ex.Vector.scale` now also works with vector input - `ex.BoundingBox.fromDimension(width: number, height: number)` can generate a bounding box from a width and height - `ex.BoundingBox.translate(pos: Vector)` will create a new bounding box shifted by `pos` - `ex.BoundingBox.scale(scale: Vector)` will create a new bounding box scaled by `scale` - Added `isActor()` and `isCollider()` type guards - Changed collision system to remove actor coupling, in addition `ex.Collider` is a new type that encapsulates all collision behavior. Use `ex.Actor.body.collider` to interact with collisions in Excalibur ([#1119](https://github.com/excaliburjs/Excalibur/issues/1119)) - Add new `ex.Collider` type that is the housing for all collision related code - The source of truth for `ex.CollisionType` is now on collider, with a convenience getter on actor - The collision system now operates on `ex.Collider`'s not `ex.Actor`'s - `ex.CollisionType` has been moved to a separate file outside of `Actor` - CollisionType is switched to a string enum, style guide also updated - `ex.CollisionPair` now operates on a pair of `ex.Colliders`'s instead of `ex.Actors`'s - `ex.CollisionContact` now operates on a pair of `ex.Collider`'s instead of `ex.Actors`'s - `ex.Body` has been modified to house all the physical position/transform information - Integration has been moved from actor to `Body` as a physical concern - `useBoxCollision` has been renamed to `useBoxCollider` - `useCircleCollision` has been renamed to `useCircleCollider` - `usePolygonCollision` has been renamed to `usePolygonCollider` - `useEdgeCollision` has been renamed to `useEdgeCollider` - Renamed `ex.CollisionArea` to `ex.CollisionShape` - `ex.CircleArea` has been renamed to `ex.Circle` - `ex.PolygonArea` has been renamed to `ex.ConvexPolygon` - `ex.EdgeArea` has been renamed to `ex.Edge` - Renamed `getWidth()` & `setWidth()` to property `width` - Actor and BoundingBox are affected - Renamed `getHeight()` & `setHeight()` to property `height` - Actor and BoundingBox are affected - Renamed `getCenter()` to the property `center` - Actor, BoundingBox, and Cell are affected - Renamed `getBounds()` to the property `bounds` - Actor, Collider, and Shapes are affected - Renamed `getRelativeBounds()` to the property `localBounds` - Actor, Collider, and Shapes are affected - Renamed `moi()` to the property `inertia` standing for moment of inertia - Renamed `restition` to the property `bounciness` - Moved `collisionType` to `Actor.body.collider.type` - Moved `Actor.integrate` to `Actor.body.integrate` - Removed `NaiveCollisionBroadphase` as it was no longer used - Renamed methods and properties will be available until `v0.24.0` - Deprecated collision attributes on actor, use `Actor.body.collider` - `Actor.x` & `Actor.y` will be removed in `v0.24.0` use `Actor.pos.x` & `Actor.pos.y` - `Actor.collisionArea` will be removed in `v0.24.0` use `Actor.body.collider.shape` - `Actor.getLeft()`, `Actor.getRight()`, `Actor.getTop()`, and `Actor.getBottom` are deprecated - Use `Actor.body.collider.bounds.(left|right|top|bottom)` - `Actor.getGeometry()` and `Actor.getRelativeGeometry()` are removed, use `Collider` - Collision related properties on Actor moved to `Collider`, use`Actor.body.collider` - `Actor.torque` - `Actor.mass` - `Actor.moi` - `Actor.friction` - `Actor.restition` - Collision related methods on Actor moved to `Collider`, use`Actor.body.collider` or `Actor.body.collider.bounds` - `Actor.getSideFromIntersect(intersect)` -> `BoundingBox.sideFromIntersection` - `Actor.collidesWithSide(actor)` -> `Actor.body.collider.bounds.intersectWithSide` - `Actor.collides(actor)` -> `Actor.body.collider.bounds.intersect`