Hydra Logo: the future of realtime Propeller programming!

Comments

• Forrest Posts: 1,341

  2007-01-22 11:36 edited 2007-01-22 11:36

  Hmm, picture links on your website are broken.
• fred2 Posts: 47

  2007-01-22 12:20 edited 2007-01-22 12:20

  Very impressive website! Your project makes me even more excited about the HYDRA capabilities.
  
  Back in the dim, dark ages of home computers I wrote a memory dump in LOGO because that is
  usually the first item I write on a new machine. It is a necessity for any "hacking" (the old definition,
  not the bad one) when developing new ideas. I can't remember the machine now, but it was the
  only language available at the time and was later published in one of the then current magazines.
  
  I will follow your development closely since I want to do a similar project and you have made a
  significant step forward. Are you using VGA output?
  
  Fred2
• Ym2413a Posts: 630

  2007-01-22 16:28 edited 2007-01-22 16:28

  Well this looks cool.
  I never programmed Logo before. But I know a lot of people who did.
• fred2 Posts: 47

  2007-01-22 16:52 edited 2007-01-22 16:52

  I am assuming that the LOGO application eventually makes the HYDRA a completely independant development machine without
  PC attachment -- or at least, that is the goal? Superb!
  
  Is your LOGO creating program written in assembler or Spin?
  
  Just curious....
  
  Fred2
• AndreL Posts: 1,004

  2007-01-23 02:22 edited 2007-01-23 02:22

  Also, I am finishing up the SRAM add on board for the HYDRA which will multiply its abilties considerably for more advanced languages and applications.
  
  Andre'
• Ym2413a Posts: 630

  2007-01-23 20:50 edited 2007-01-23 20:50

  I like this, Making a turtle move sounds like fun. ^^
• AndreL Posts: 1,004

  2007-01-24 04:21 edited 2007-01-24 04:21

  As long as its armed [noparse]:)[/noparse]
  
  Andre
• Ym2413a Posts: 630

  2007-01-24 15:01 edited 2007-01-24 15:01

  AndreL said...
  As long as its armed [noparse]:)[/noparse]
  
  Andre

  
  Armed as in "SHOOT 30"?
  (lol)
• Dreamwriter Posts: 22

  2007-01-30 08:28 edited 2007-01-30 08:28

  OK, an update - I just got the "Repeat" command working (had a nasty bug, took forever to figure out). You can now do:
  
  repeat 180[noparse][[/noparse]fd 4 rt 2]
  
  and get a (pretty good approximation of a) circle. Just for fun, here's a sneak peak at some SPIN code:
  
  

    case Command
      COMMAND_FD, COMMAND_FORWARD:
        eraseTurtle
        parameter1 := getIntParameter(ParameterList)
        ParameterList := secondaryReturn
        'standard geometry, x = delta * cos(angle), y = delta * sin(angle).  +90 so zero degrees points straight up.
        turtlex := turtlex + ((parameter1 * getCos(turtleangle+90)) / 65535)
        turtley := turtley + ((parameter1 * getSin(turtleangle+90)) / 65535)
        'plot the line
        gr.colorwidth(2,0)
        gr.plot(oldTurtlex, oldTurtley)
        gr.line(turtlex, turtley)      
        drawTurtle
        NewStringPosition := ParameterList       
  
  
• AndreL Posts: 1,004

  2007-02-19 21:17 edited 2007-02-19 21:17

  Dreamwriter, how's the logo coming, time for another release?
  
  Andre'
• Dreamwriter Posts: 22

  2007-02-26 11:13 edited 2007-02-26 11:13

  At long last, an update! Things have been going slow between a project at work and being stuck in Hydra Logo, but I finally broke the Logo logjam (logojam?) tonight.
  
  Functions (user-created Commands) have been giving me lots of problems, but (just tonight) I finally got basic functions in Logo working...mostly [noparse]:)[/noparse] Right now, one or two line functions work just fine, even if one of the lines is a "repeat" command, but any more lines and it doesn't work. As well, you can call a function with the "repeat" command ("repeat 4[noparse][[/noparse]right 45 mysquarefunc]"), but doesn't work if the function is the first command in the repeat. Before tonight only single-line functions would work, they wouldn't work in repeats, and they'd only work if the function declaration was the first thing you did after starting up Hydra Logo, so it's now coming along quickly.
  
  Once I get these problems fixed, I need to add the ability to pass parameters into functions, add in basic arithmetic functionality, and saving functions to Eeprom, and that'll be version 1.0, to be released to the masses. Due to noticing I have more free RAM than I thought I had, I'm currently thinking of delaying the assembly version of Hydra Logo (previously 2.0), so I can make this one a lot more complete and cool: add support for the NES controllers, sprites and sounds and stuff, and make its parsing less strict (the repeat command is very strict to how it has to be setup, and you currently are limited to one command per line of text).
  
  Hopefully you guys will be able to enjoy my work soon!
  
  Another preview: here's the current command list
  
  

  ' LOGO Commands    #chars,string
  commands        byte    2,"fd"
                  byte    7,"forward"
                  byte    2,"bk"
                  byte    8,"backward"
                  byte    2,"lt"
                  byte    4,"left"
                  byte    2,"rt"
                  byte    5,"right"
                  byte    4,"home"
                  byte    6,"setpos"
                  byte    10,"hideturtle"
                  byte    2,"ht"
                  byte    10,"showturtle"
                  byte    2,"st"
                  byte    5,"penup"
                  byte    2,"pu"
                  byte    7,"pendown"
                  byte    2,"pd"
                  byte    6,"repeat"
                  byte    2,"rp"
                  byte    2,"to"
                  byte    4,"make"
                  byte    2,"mk"
                  byte    5,"shoot"
                  byte    3,"end"