!
! The Laboratory of Algorithms
!
! The MIT License
!
! Copyright 2011-2015 Andrey Pudov.
!
! Permission is hereby granted, free of charge, to any person obtaining a copy
! of this software and associated documentation files (the 'Software'), to deal
! in the Software without restriction, including without limitation the rights
! to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
! copies of the Software, and to permit persons to whom the Software is
! furnished to do so, subject to the following conditions:
!
! The above copyright notice and this permission notice shall be included in
! all copies or substantial portions of the Software.
!
! THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
! LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
! OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
! THE SOFTWARE.
!

module MFCircle

    use MFShape

    implicit none
    private

    type, extends(TFShape), public :: TFCircle
    contains
        procedure :: getArea
    end type

    interface TFCircle
        module procedure init
    end interface
contains
    function init(radius) result(circle)
        real, intent(in) :: radius
        type(TFCircle)   :: circle

        circle%width = radius
    end function

    function getArea(this) result(area)
        class(TFCircle), intent(in) :: this
        real :: area

        area = this%width * this%width * 3.14159265 / 4.0
    end function
end module
