This command will draw an unfilled circle on the screen.

a2Circle x, y, radius, color

x

Float
This value specifies the X coordinate of the center of the circle.

y

Float
This value specifies the Y coordinate of the center of the circle.

radius

Float
This value specifies the radius of the circle.

color

Integer
This value is a 32 bit integer specifying alpha, red, green, and blue color values for the circle.

This command does not return a value.

This command will draw an unfilled circle on the screen. The circle is anti-aliased.

x = screen width()/2
y = screen height()/2
radius = 100
color = 0xFFFFFFFF

a2Circle x, y, radius, color

WAIT KEY

a2FillCircle
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