class

SF::CircleShape

Inherits SF::Shape < SF::Drawable < SF::Transformable < Reference < Object

Specialized shape representing a circle

This class inherits all the functions of SF::Transformable (position, rotation, scale, bounds, ...) as well as the functions of SF::Shape (outline, color, texture, ...).

Usage example:

circle = SF::CircleShape.new
circle.radius = 150
circle.outline_color = SF::Color::Red
circle.outline_thickness = 5
circle.position = {10, 20}
# [...]
window.draw circle

Since the graphics card can't draw perfect circles, we have to fake them with multiple triangles connected to each other. The "points count" property of SF::CircleShape defines how many of these triangles to use, and therefore defines the quality of the circle.

The number of points can also be used for another purpose; with small numbers you can create any regular polygon shape: equilateral triangle, square, pentagon, hexagon, ...

See also: SF::Shape, SF::RectangleShape, SF::ConvexShape

Constructors

new(radius : Number = 0, point_count : Int = 30)

Default constructor

radius - Radius of the circle
point_count - Number of points composing the circle

Source

Instance methods

dup

Returns a shallow copy of this object.

This allocates a new object and copies the contents of self into it.

Source

finalize

Virtual destructor

Source

get_point(index : Int) : Vector2f

Get a point of the circle

The returned point is in local coordinates, that is, the shape's transforms (position, rotation, scale) are not taken into account. The result is undefined if index is out of the valid range.