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flat assembler > Examples and Tutorials > Hobby Basic

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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 15904
Location: 162173 Ryugu
filox wrote:
Sorry but where i can find sources of Hobbybasic?
Have a look at the first post in this thread.
Post 21 Oct 2016, 12:13
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system error



Joined: 01 Sep 2013
Posts: 671
This is good. Keep it coming, bro!
Post 22 Oct 2016, 13:32
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filox



Joined: 13 Feb 2013
Posts: 10
revolution wrote:
filox wrote:
Sorry but where i can find sources of Hobbybasic?
Have a look at the first post in this thread.


No source, only EXE and Demo.bas
Post 26 Oct 2016, 12:24
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sleepsleep



Joined: 05 Oct 2006
Posts: 7391
Location: ˛                              ⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣⁣ Posts: 6699
hi filox,
you could try pm picnic for source etc
Post 26 Oct 2016, 12:36
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Picnic



Joined: 05 May 2007
Posts: 1244
Location: Icarian Sea
Hi filox, the source is not available, at least not yet. Hobby Basic has still some way to go. I want to extend the command list, find methods to make the intepreter faster, add features like user procedures with parameters and local variables and some other ideas i have. This is done somewhat slowly, the only days i can steal some time to work are the weekends.
Post 26 Oct 2016, 13:37
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filox



Joined: 13 Feb 2013
Posts: 10
Picnic wrote:
Hi filox, the source is not available, at least not yet. Hobby Basic has still some way to go. I want to extend the command list, find methods to make the intepreter faster, add features like user procedures with parameters and local variables and some other ideas i have. This is done somewhat slowly, the only days i can steal some time to work are the weekends.


Hi picnic, if u can share code with us, we can help you possibly to improve it faster and i'm interested in it for educational scope Very Happy
Post 18 Nov 2016, 13:19
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Picnic



Joined: 05 May 2007
Posts: 1244
Location: Icarian Sea
Quote:
...and i'm interested in it for educational scope

Take a look at MINI-BASIC for fasm. It's a piece of code available for modifications.
Post 21 Nov 2016, 15:50
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Picnic



Joined: 05 May 2007
Posts: 1244
Location: Icarian Sea
I have uploaded a new version with bug fixes and various internal tweaking.

A string variable is identified by the symbol $ at the end of a variable name.
Concatenation uses the + addition symbol to add literal or variable parts to a
string variable.

Code:
    age=10
    a$="I am "+chr(34)+str(age)+chr(34)+" years old."
    print a$
    pause
    


Code:
    a$="ABCDEFGHIJKLMNOPQRSTUVWXYZ"
    b$=reverse(a$)
    print a$,EOL$,b$
    print left(a$,5)
    pause
    


Code:
    
    input "How many words:",n
    dim a$[n]

    for i=0 to n-1
        print "Enter word ",i+1,":",
        input a$[i]
    next 
    pause
    


Code:
    do
        input "password:",a$
    until comp(trim(a$),"letmein")=1
    print "You are in."
    pause   
    


Last edited by Picnic on 08 Jan 2018, 07:36; edited 15 times in total
Post 21 Dec 2016, 12:34
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avcaballero



Joined: 02 Feb 2004
Posts: 166
Location: Madrid - Spain
Hello, it is very interesting. I was very fond of qbasic. I'd just say that it would be nice to see your page in English, Greek is a bit hard for me Smile
Post 21 Dec 2016, 13:20
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Picnic



Joined: 05 May 2007
Posts: 1244
Location: Icarian Sea
It's been some time since my last post about HB. All this time there were some bug fixes and various internal tweaking, but not a major update.
Hobby Basic now includes an embedded ANSI file loader that recognizes standard DOS ANSI.SYS escape codes for colours and cursor movement.
Having a console library already written (the one that HB is using as backend), it took me a few hours of work to accomplish it.


Loading an ANSI image is simply a command.
Code:
    ! n is optional. It controls the drawing speed.
    ! n=0 unlimited (default)
    ! n=1 slow...100 fast


    path$ = "ART\APPLE.ANS"

    screen 80,25
    cls

    if SIZE(path$)<>-1   ! check if file exists
        ansi 0,path$
        inkey
    endif

    end
    

Image




Another example, slightly more advanced. An ANSI text file viewer.
Code:
  
    rem  View multiple ANSI coded text files in folder
    rem  Hobby Basic Sample

    s=20                               ! drawing speed
    d=2000000                          ! delay between images
    auto=1                             ! autoplay slideshow
    count=0                            ! valid files found
    max=250                            ! max files in folder
    dim ext$[2] = ".ans" , ".asc"      ! valid file extensions
    path$=PATH(0)+"\ART\"              ! path to ART folder
    cmd$="DIR "+path$+" /b"
    exec cmd$,dir$
    screen 80,30
    cursor 0,0

    forever#

    for n=1 to max
        a$=READLN(n,dir$)
        if V0=-1 then break
        filename$=path$+a$
        if SIZE(filename$)<>-1           ! check if file exists
            if check_ext(filename$)=1
                count=count+1
                title filename$
                color 0,7:cls
                ansi s,filename$
                if KEY(27) then end
                if auto=1 then wait d else inkey
            endif
        endif
    next n

    if count=0 then alert "no files found":end

    goto forever



rem  Check for valid file extension
sub check_ext(path$)

    local i

    for i=0 to SIZE(ext$[])-1
        if COMP(LCASE(RIGHT(path$,4)),ext$[i])=1 then rets 1
    next i

    rets 0
ends
    




HB has some special screen management capabilities.
In the ANSI image below (made by NC-17) i will add some ASCII bouncing particles inside the box.
For the sake of example, i will crop the box. This could be done directly in the original image with less code.


Image
Code:
    path$="ART/NC-TBG.ANS"
    if SIZE(path$)=-1 then alert path$," not found":end

    c=80
    r=40
    dim nc[c,r]

    screen 80,68             ! set the screen size
    cursor 0,0 : cls         ! hide the cursor and clear the screen
    ansi path$ : inkey       ! load the ANSI encoded file and wait for a key
    grab 0,0,c,r,nc[],0      ! copy from screen to array
    file "nc.hb",nc[],0      ! save array as binary file
    screen c,r : cls         ! set new (smaller) screen size
    file "nc.hb",nc[],1      ! load binary file to array
    file "nc.hb",0,3         ! delete the file
    grab 0,0,c,r,nc[],1      ! transfer array to screen
    copy 0,0,c,7             ! copy some stars
    paste 0,r-6,c,7          ! paste at another location
    flip 0,r-6,c,7,0         ! flip them vertically
    n=10                     ! number of particles

    dim x[n]
    dim y[n]
    dim c[n]
    dim oldx[n]
    dim oldy[n]
    dim vx[n]
    dim vy[n]

    for i=0 to n-1
        do
            x[i]=RND(30)+25
            y[i]=RND(15)+8
        until CELL(x[i],y[i])=32
        if i<(n/2) then c[i]=7 else c[i]=9
        if RND(2)<>0 then vx[i]=1 else vx[i]=-1
        vy[i]=-vx[i]
    next i

    c[n-1]=12
    oldx[]=x[]
    oldy[]=y[]
    delay=20000

    do

        for i=0 to n-1
            pen c[i]
            at oldx[i],oldy[i],' '
            at x[i],y[i],'o'
            if CELL(x[i]+vx[i],y[i])<>32
                vx[i]=-vx[i]
            elseif CELL(x[i],y[i]+vy[i])<>32
                vy[i]=-vy[i]
            elseif CELL(x[i]+vx[i],y[i]+vy[i])<>32
                vx[i]=-vx[i]
                vy[i]=-vy[i]
            else
                oldx[i]=x[i]
                oldy[i]=y[i]
                x[i]=x[i]+vx[i]
                y[i]=y[i]+vy[i]
            endif
        next i

        wait delay

    until KEY(27)<>0
    end
    

Image
Post 28 May 2018, 13:49
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