struct CP::BB

• CP::BB
• Struct
• Value
• Object

Overview

Chipmunk's axis-aligned 2D bounding box type. (left, bottom, right, top)

Defined in:

chipmunk/vector.cr

Constructors

• .new(left : Number = 0, bottom : Number = 0, right : Number = 0, top : Number = 0)
• .new_for_circle(p : Vect, r : Number) : self

  Constructs a BB fitting a circle with the position p and radius r.

• .new_for_extents(c : Vect, hw : Number, hh : Number) : self

  Constructs a BB centered on a point with the given extents (half sizes).

Instance Method Summary

• #area : Float64

  Returns the area of the bounding box.

• #bottom : Float64
• #bottom=(bottom : Float64)
• #center : Vect

  Returns the center of a bounding box.

• #clamp_vect(v : Vect) : Vect

  Clamp a vector to a bounding box

• #contains?(other : BB) : Bool

  Returns true if the other BB lies completely within this one.

• #contains?(point : Vect) : Bool

  Returns true if this BB contains the point.

• #expand(point : Vect) : BB

  Returns the minimal bounding box that contains both this BB and the point.

• #intersects?(other : BB) : Bool

  Returns true if this BB intersects the other.

• #intersects_segment?(a : Vect, b : Vect) : Bool

  Return true if the bounding box intersects the line segment with ends a and b.

• #left : Float64
• #left=(left : Float64)
• #merge(other : BB) : BB

  Returns a bounding box that holds both bounding boxes.

• #offset(v : Vect) : BB

  Returns a bounding box offseted by v.

• #right : Float64
• #right=(right : Float64)
• #segment_query(a : Vect, b : Vect) : Float64

  Returns the fraction along the segment query the BB is hit.

• #top : Float64
• #top=(top : Float64)
• #wrap_vect(v : Vect) : Vect

  Wrap a vector to a bounding box.

Constructor Detail

Instance Method Detail