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Epidemic-Simulation

Uploader:MitgliedLife in a Loop
Datum/Zeit:11.09.2020 00:54:27

'***********************************************************************
'*                                                                     *
'*              E p i d e m i c   S i m u l a t i o n                  *
'*                                                                     *
'*                             v. 1.00                                 *
'*                                                                     *
'*                   (c) 2020 F. Benjamin Studer                       *
'*                                                                     *
'*  This Software is distributed under the GNU GENERAL PUBLIC LICENSE  *
'*  Version 2 which is included at the end of the file.                *
'*                                                                     *
'***********************************************************************


/'

To Do:

- Solve some terrible if clauses
- Bring everything in order
- Some variables that can be modified within code would cause problems because other processes are not prepared for different values!
- Should Happiness become Health and the sickness death by random eliminated?
- Age
- Gender

'/





screen 15, , ,
locate ,,0


'Variables
    dim shared xMargin as integer
    dim shared yMargin as integer
    xMargin = 20
    yMargin = 20
    dim shared board(1 to xMargin, 1 to yMargin) as string

    dim shared population as integer
    population = 9
    dim EpidemicStarters as byte
    EpidemicStarters = 2
    type human
        as integer x
        as integer y
        as byte sickness
        as integer TimeOfInfection
        as integer Happiness
    end type
    dim shared person(1 to population) as human
    dim TimePassed as integer
    TimePassed = 0

    const susceptible = 0
    const infectious = 1
    const recovered = 2
    const dead = 3

    dim TotalInfectious as byte
    dim TotalSusceptible as byte
    dim TotalRecovered as byte
    dim TotalDeaths as byte
    dim TotalHappiness as integer

    dim OldTime as integer
    dim OldTotalInfectious as byte
    dim OldTotalSusceptible as byte
    dim OldTotalRecovered as byte
        OldTotalRecovered = 0
    dim OldTotalDeaths as byte
        OldTotalDeaths = 0

    dim OldTotalHappiness as integer
        OldTotalHappiness = population * 500
    dim Lockdown as byte
    type LdM
        Moment as integer
        l as byte
    end type
    dim LockdownMarker(1 to 100) as LdM
    dim Lposition as byte
        Lposition = 0

    dim key as string
    const presumed = true
    dim Ignorance as byte


    dim x as byte
    dim y as byte
    dim n as integer
    dim r as byte
    dim c as byte





'Starting Position
    for n = 1 to population
        'Set up initially infectious people
            if EpidemicStarters > 0 then
                person(n).sickness = infectious
                person(n).TimeOfInfection = 0
                EpidemicStarters -= 1
            else
                person(n).sickness = susceptible
            end if

        'Choose random position
            randomize
            person(n).x = int(rnd * xMargin) + 1
            randomize
            person(n).y = int(rnd * yMargin) + 1

        person(n).Happiness = 500
    next


    for y = 1 to xMargin
        for x = 1 to xMargin
            'Create the air that the people need to live (move)
                board(x, y) = " "
            for n = 1 to population
                if person(n).x = x and person(n).y = y then board(x,y) = str(n)
            next n
        next x
    next y

    'Walls
    'for x = 1 to xMargin - 5
        'board(x, 10) = "X"
    'next x


Start:

    'print border
        for n = 1 to yMargin + 1
            locate n, xMargin + 1
            color 7
            print "."
        next n
        locate yMargin + 1
        print string(xMargin, ".")

    OldTime = 0
    OldTotalInfectious = TotalInfectious

    do
        for n = 1 to population
            board( person(n).x , person(n).y ) = " "
            Randomization:
            randomize
            r = int(rnd*8)+1
            randomize
            if int(rnd*5) +1 = 5 then
                Ignorance = true
            else
                Ignorance = false
            end if


            'Movement of people
                if (not person(n).sickness = dead) and ( not Lockdown or (Lockdown and Ignorance = true) )  then
                    select case r
                        case 1:
                            if person(n).y >1 then
                                'When using 'and' there will be errors because apparently freeBASIC doesn't go on when the first condition is
                                'negative ("segmentation fault" because of the array).
                                if board( person(n).x , person(n).y-1 ) = " " then
                                    person(n).y = person(n).y - 1
                                else
                                    goto Randomization
                                end if
                            else
                                goto Randomization
                            end if

                        case 2:
                            if person(n).y <yMargin then
                                if board( person(n).x , person(n).y+1 ) = " " then
                                    person(n).y = person(n).y + 1
                                else
                                    goto Randomization
                                end if
                            else
                                goto Randomization
                            end if

                        case 3:
                            if person(n).x >1 then
                                if board( person(n).x-1 , person(n).y ) = " " then
                                    person(n).x = person(n).x - 1
                                else
                                    goto Randomization
                                end if
                            else
                                goto Randomization
                            end if

                        case 4:
                            if person(n).x <xMargin then
                                if board(person(n).x+1,person(n).y) = " " then
                                    person(n).x = person(n).x + 1
                                else goto Randomization
                                end if
                            else
                                goto Randomization
                            end if
                    end select
                end if

            board(person(n).x,person(n).y) = str(n)
        next n


        'Check if a person recovers or dies
        for n = 1 to population
            if person(n).sickness = infectious and TimePassed - person(n).TimeOfInfection > 140 then
                randomize
                r  = int(rnd * 10) + 1
                if r = 1 then
                    person(n).sickness = dead
                else
                    person(n).sickness = recovered
                end if
            end if
        next n


        'Check for people next to each other in regards to infection, human relations and mourning
        for n = 1 to population
            'Check if person is still alive at all
            if person(n).sickness <> dead then

                'Is the person to the left infectious
                if person(n).x > 1 then
                    if board( person(n).x-1, person(n).y ) <> " " and board( person(n).x-1, person(n).y ) <> "X" then


                            'There is a person to the left
                                if person( val( board( person(n).x-1, person(n).y ) ) ).sickness = dead then
                                    person(n).Happiness -= 5 'It makes unhappy to know somebody who died
                                else
                                    person(n).Happiness += 21 'Because people need human relations and touch

                                    if person( val( board( person(n).x-1, person(n).y ) ) ).sickness = infectious then
                                        if person(n).sickness = susceptible then
                                            person(n).sickness = infectious
                                            person(n).TimeOfInfection = TimePassed
                                        end if
                                    end if
                                end if


                    end if
                end if

                'Is the person to the right infectious
                if person(n).x < xMargin then
                    if board( person(n).x+1, person(n).y ) <> " " and board( person(n).x+1, person(n).y ) <> "X" then


                            'There is a person to the right
                                if person( val( board( person(n).x+1, person(n).y ) ) ).sickness = dead then
                                    person(n).Happiness -= 5 'It makes unhappy to know somebody who died
                                else
                                    person(n).Happiness += 21 'Because people need human relations and touch

                                    if person( val( board( person(n).x+1, person(n).y ) ) ).sickness = infectious then
                                        if person(n).sickness = susceptible then
                                            person(n).sickness = infectious
                                            person(n).TimeOfInfection = TimePassed
                                        end if
                                    end if
                                end if

                    end if
                end if

                'Is the person above infectious
                if person(n).x > 1 then
                    if board( person(n).x, person(n).y-1 ) <> " " and board( person(n).x, person(n).y-1 ) <> "X" then


                            'There is a person above
                                if person( val( board( person(n).x, person(n).y-1 ) ) ).sickness = dead then
                                    person(n).Happiness -= 5 'It makes unhappy to know somebody who died
                                else
                                    person(n).Happiness += 21 'Because people need human relations and touch

                                    if person( val( board( person(n).x, person(n).y-1 ) ) ).sickness = infectious then
                                        if person(n).sickness = susceptible then
                                            person(n).sickness = infectious
                                            person(n).TimeOfInfection = TimePassed
                                        end if
                                    end if
                                end if

                    end if
                end if

                'Is the person below infectious
                if person(n).x < xMargin then
                    if board( person(n).x, person(n).y+1 ) <> " " and board( person(n).x, person(n).y+1 ) <> "X" then


                            'There is a person below
                                if person( val( board( person(n).x, person(n).y+1 ) ) ).sickness = dead then
                                    person(n).Happiness -= 5 'It makes unhappy to know somebody who died
                                else
                                    person(n).Happiness += 21 'Because people need human relations and touch

                                    if person( val( board( person(n).x, person(n).y+1 ) ) ).sickness = infectious then
                                        if person(n).sickness = susceptible then
                                            person(n).sickness = infectious
                                            person(n).TimeOfInfection = TimePassed
                                        end if
                                    end if
                                end if

                    end if
                end if

                'Lonelyness makes unhappy (notice the 20 PLUS ONE in happiness when there is human relation)
                    if person(n).sickness <> dead then person(n).Happiness -= 1
            end if
        next n


        'Compute Happiness and Suicides
            for n = 1 to population
                if person(n).sickness <> dead then
                    if person(n).sickness = infectious then person(n).Happiness -= 2
                    if Lockdown then
                        'Randomly decide for current psychological stability
                        randomize
                        select case int(rnd * 5) + 1
                            case 1:
                                'Psychologically unstable / neurotic
                                person(n).Happiness -= 5
                            case else:
                                'Psychologically stable
                                person(n).Happiness -= 1
                        end select
                    end if
                    if person(n).Happiness <= 0 then person(n).sickness = dead
                end if
            next n


        'Display Board
            for y = 1 to yMargin
                for x = 1 to xMargin
                    locate y,x
                    'Choose the correct color
                        if board(x,y) <> "X" then
                            if person( val( board(x,y) ) ).sickness = infectious then
                                color 4
                            elseif person( val( board(x,y) ) ).sickness = recovered then
                                color 1
                            elseif person( val( board(x,y) ) ).sickness = dead then
                                color 8
                            else
                                color 2
                            end if
                        else
                            color 7
                        end if
                        print board(x, y)
                next x
            next y


        'Count
            TotalSusceptible = 0
            TotalInfectious = 0
            TotalRecovered = 0
            TotalDeaths = 0
            for n = 1 to population
                select case person(n).sickness
                    case susceptible:
                        TotalSusceptible += 1
                    case infectious:
                        TotalInfectious += 1
                    case recovered:
                        TotalRecovered += 1
                    case dead:
                        TotalDeaths += 1

                end select

            next n


        'Display Statistics
            color 2 : locate 1, 28 : print "Total Susceptible: " & TotalSusceptible
            color 4 : locate 2, 28 : print "Total Infectious: " & TotalInfectious
            color 1 : locate 3, 28 : print "Total Recovered: " & TotalRecovered
            color 8 : locate 4, 28 : print "Total Deaths: " & TotalDeaths
            if Lockdown = true then
                color 12: locate 6, 28 : print "LOCKDOWN"
            else
                locate 6, 28 : print "        "
            end if
            if not Lockdown then
                color 15 : locate 7, 28 : print "Press 'L' for Lockdown"
            else
                color 15 : locate 7, 28 : print "Press 'L' to end Lockd."
            end if
            color 15 : locate 8, 28 : print "Press 'Q' to quit"

            color 11 : locate 25, 1 : print "Happiness:"
            for n = 1 to population
                select case person(n).sickness
                    case infectious:
                        color 4
                    case susceptible:
                        color 2
                    case recovered:
                        color 1
                    case dead:
                        color 8
                end select
                locate 26+n, 1 : print n
                color 11
                locate 26+n, 4 : print person(n).Happiness & "     "
            next n


        'Draw Graphic
            line ( OldTime/5 + 240, 130 - (OldTotalInfectious*4) )-( int(TimePassed/5 + 240), 130 - (TotalInfectious*4) ), 4
            line ( OldTime/5 + 240, 131 - (OldTotalDeaths*4) )-( int(TimePassed/5 + 240), 131 - (TotalDeaths*4) ), 8
            line ( OldTime/5 + 240, 132 - (OldTotalSusceptible*4) )-( int(TimePassed/5 + 240), 132 - (TotalSusceptible*4) ), 2
            line ( OldTime/5 + 240, 133 - (OldTotalRecovered*4) )-( int(TimePassed/5 + 240), 133 - (TotalRecovered*4) ), 1

            'Lockdown Markers
                for n = 1 to Lposition
                    if LockdownMarker(n).l = true then
                        c = 4
                    else
                        c = 2
                    end if
                    line ( int(LockdownMarker(n).Moment/5+240) , 142)-( int(LockdownMarker(n).Moment/5+240+1), 148), c,bf
                next n


        'Compute current TotalHappiness
            TotalHappiness = 0
            for n = 1 to population
                TotalHappiness += person(n).Happiness
            next n
            line ( OldTime/5 + 240, 180 - (int(OldTotalHappiness/200) ) )-( int(TimePassed/5 + 240), 180 - (int(TotalHappiness/200) ) ), 11


        'Take a step forward
            OldTime = TimePassed
            OldTotalInfectious = TotalInfectious
            OldTotalSusceptible = TotalSusceptible
            OldTotalRecovered = TotalRecovered
            OldTotalDeaths = TotalDeaths
            OldTotalHappiness = TotalHappiness


        sleep 200


        'Quit on user request
            key = inkey
            select case key
                case "q":
                    system
                case "l":
                    lposition += 1
                    LockdownMarker(Lposition).Moment = TimePassed
                    LockdownMarker(Lposition).l = not Lockdown
                    Lockdown = not Lockdown
            end select

        TimePassed += 1
        if (TimePassed/5+240) > 380 then exit do
    loop

    locate 7, 28 : print "Press the Anykey      "
    locate 8, 28 : print "to continue...   "
    sleep
system



/'
            GNU GENERAL PUBLIC LICENSE
               Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.
                       59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

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License and any other pertinent obligations, then as a consequence you
may not distribute the Program at all.  For example, if a patent
license would not permit royalty-free redistribution of the Program by
all those who receive copies directly or indirectly through you, then
the only way you could satisfy both it and this License would be to
refrain entirely from distribution of the Program.

If any portion of this section is held invalid or unenforceable under
any particular circumstance, the balance of the section is intended to
apply and the section as a whole is intended to apply in other
circumstances.

It is not the purpose of this section to induce you to infringe any
patents or other property right claims or to contest validity of any
such claims; this section has the sole purpose of protecting the
integrity of the free software distribution system, which is
implemented by public license practices.  Many people have made
generous contributions to the wide range of software distributed
through that system in reliance on consistent application of that
system; it is up to the author/donor to decide if he or she is willing
to distribute software through any other system and a licensee cannot
impose that choice.

This section is intended to make thoroughly clear what is believed to
be a consequence of the rest of this License.

  8. If the distribution and/or use of the Program is restricted in
certain countries either by patents or by copyrighted interfaces, the
original copyright holder who places the Program under this License
may add an explicit geographical distribution limitation excluding
those countries, so that distribution is permitted only in or among
countries not thus excluded.  In such case, this License incorporates
the limitation as if written in the body of this License.

  9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
be similar in spirit to the present version, but may differ in detail to
address new problems or concerns.

Each version is given a distinguishing version number.  If the Program
specifies a version number of this License which applies to it and "any
later version", you have the option of following the terms and conditions
either of that version or of any later version published by the Free
Software Foundation.  If the Program does not specify a version number of
this License, you may choose any version ever published by the Free Software
Foundation.

  10. If you wish to incorporate parts of the Program into other free
programs whose distribution conditions are different, write to the author
to ask for permission.  For software which is copyrighted by the Free
Software Foundation, write to the Free Software Foundation; we sometimes
make exceptions for this.  Our decision will be guided by the two goals
of preserving the free status of all derivatives of our free software and
of promoting the sharing and reuse of software generally.

                NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

             END OF TERMS AND CONDITIONS

        How to Apply These Terms to Your New Programs

  If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.

  To do so, attach the following notices to the program.  It is safest
to attach them to the start of each source file to most effectively
convey the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA


Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this
when it starts in an interactive mode:

    Gnomovision version 69, Copyright (C) year name of author
    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
    This is free software, and you are welcome to redistribute it
    under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License.  Of course, the commands you use may
be called something other than `show w' and `show c'; they could even be
mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your
school, if any, to sign a "copyright disclaimer" for the program, if
necessary.  Here is a sample; alter the names:

  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
  `Gnomovision' (which makes passes at compilers) written by James Hacker.

  <signature of Ty Coon>, 1 April 1989
  Ty Coon, President of Vice

This General Public License does not permit incorporating your program into
proprietary programs.  If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library.  If this is what you want to do, use the GNU Library General
Public License instead of this License.

'/