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Epidemic-Simulation
| Uploader: |  Life 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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In addition, mere aggregation of another work not based on the Program
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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.
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