Home→Forums→MonoBrick EV3 Firmware→Tic Tac Toe Bot
- This topic has 10 replies, 3 voices, and was last updated 10 years, 7 months ago by Helmut Wunder.
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May 13, 2014 at 04:37 #4322
Orlando_2kParticipantHi, this is Orlando_2k from the Lego Mindstorms community.
Anders Posted something over there:
http://www.us.lego.com/en-us/mindstorms/community/robot?projectid=a4584682-4581-435d-93df-e2f3d33a30f7
“Hi I am one of the creators of the MonoBrick firmware. I would like use your robot to promote MonoBrick. If you are interested please visit our webpage and use the contact form to start talking… Anders”
I tried to use the contact form but didn’t get an answer yet…
Are you still interested?May 13, 2014 at 07:24 #4323
Helmut WunderParticipanthea,
this looks vera interesting – where can one download the Mono/C# source code ?May 13, 2014 at 14:41 #4324
Anders SøborgKeymasterHi Orlando
This looks very nice sure we are still interested. Please post some videos and some pictures… Then I will use it on the Firmware page. How does that sound?
@Helmut
The source can be found here…Anders
May 13, 2014 at 14:57 #4327
Helmut WunderParticipantI meant the code for the tictactoe bot…
May 13, 2014 at 15:19 #4328
Orlando_2kParticipant@Helmut Wunder: You can download a “BuildingInstruction.pdf” at the project page. The source code is at the end of that document. (If you want to copy paste it, I can repost the code here (the mindstorms community doesn’t allow all file types 🙁 ))
@Anders Søborg: why didn’t the contact form work for me?
You can use the images and videos from the projectpage. Let me know if you need anything else!
can you please add a link to my profile page, so guests can check out my other robots?
my profile page:
http://www.us.lego.com/en-us/mindstorms/community/profile?builder=Orlando_2k- This reply was modified 10 years, 7 months ago by Orlando_2k.
- This reply was modified 10 years, 7 months ago by Orlando_2k.
May 13, 2014 at 15:20 #4329
Orlando_2kParticipantsorry, double post
- This reply was modified 10 years, 7 months ago by Orlando_2k.
- This reply was modified 10 years, 7 months ago by Orlando_2k.
- This reply was modified 10 years, 7 months ago by Orlando_2k.
- This reply was modified 10 years, 7 months ago by Orlando_2k.
May 14, 2014 at 13:15 #4337
Helmut WunderParticipanthey,
yes, it would be very nice if you posted the code here, too, and maybe a link to the pdf additionally, I find the Lego site very confusingMay 14, 2014 at 14:05 #4338
Orlando_2kParticipantok, so the link to the pdf should be:
http://cache.lego.com/r/www/r/mindstorms/community/services/downloads/bc129b2f-4a1b-431e-bf36-1cb922d94e73/buildinginstruction.pdf
now the code:
(the code might be ugly and inefficient, it’s just like it came to my mind)using System; using System.Threading; using MonoBrickFirmware; using MonoBrickFirmware.UserInput; using MonoBrickFirmware.Display; using MonoBrickFirmware.Sensors; using MonoBrickFirmware.Movement; namespace TTT { class MainClass { //save all fields in an array //1 -> bot / 2 -> Player / 0 -> empty static byte[] array = new byte[9]; //show some info on the LCD static void draw (string msg) { LcdConsole.Clear (); LcdConsole.WriteLine ("Bot: 1"); LcdConsole.WriteLine ("Player: 2"); LcdConsole.WriteLine (" "); LcdConsole.WriteLine (" " + array [1] + " | " + array [2] + " | " + array [3]); LcdConsole.WriteLine (" ---+---+---"); LcdConsole.WriteLine (" " + array [8] + " | " + array [0] + " | " + array [4]); LcdConsole.WriteLine (" ---+---+---"); LcdConsole.WriteLine (" " + array [7] + " | " + array [6] + " | " + array [5]); LcdConsole.WriteLine (""); LcdConsole.WriteLine ("Status:"); LcdConsole.WriteLine (msg); } //test (player == 1) winning moves and (player == 2) blocking moves static int check (int player) { if (array [0] == player) { if (array [2] == player && array [6] == 0) return 6; if (array [6] == player && array [2] == 0) return 2; if (array [4] == player && array [8] == 0) return 8; if (array [8] == player && array [4] == 0) return 4; } if (array [1] == player && array [2] == player && array [3] == 0) return 3; if (array [2] == player && array [3] == player && array [1] == 0) return 1; if (array [1] == player && array [3] == player && array [2] == 0) return 2; if (array [3] == player && array [4] == player && array [5] == 0) return 5; if (array [5] == player && array [4] == player && array [3] == 0) return 3; if (array [3] == player && array [5] == player && array [4] == 0) return 4; if (array [5] == player && array [6] == player && array [7] == 0) return 7; if (array [7] == player && array [6] == player && array [5] == 0) return 5; if (array [7] == player && array [5] == player && array [6] == 0) return 6; if (array [7] == player && array [8] == player && array [1] == 0) return 1; if (array [1] == player && array [8] == player && array [7] == 0) return 7; if (array [1] == player && array [7] == player && array [8] == 0) return 8; return -1; } //get a free corner static int freeCorner () { if (array [1] == 0) return 1; if (array [3] == 0) return 3; if (array [5] == 0) return 5; if (array [7] == 0) return 7; return -1; } //get a free edge static int freeEdge () { if (array [2] == 0) return 2; if (array [4] == 0) return 4; if (array [6] == 0) return 6; if (array [8] == 0) return 8; return -1; } //test if the last move finished the game static bool finished () { return( (array [0] == array [2] && array [2] == array [6] && array [0] != 0) || (array [0] == array [4] && array [4] == array [8] && array [0] != 0) || (array [1] == array [2] && array [2] == array [3] && array [1] != 0) || (array [3] == array [4] && array [4] == array [5] && array [3] != 0) || (array [5] == array [6] && array [6] == array [7] && array [5] != 0) || (array [7] == array [8] && array [8] == array [1] && array [7] != 0)); } //make a move static void put (int field) { draw ("Bots Turn"); array [field] = 1; mArm.MoveTo (50, 110, true, true); mGrip.On (-20); System.Threading.Thread.Sleep (400); mGrip.Off (); mArm.MoveTo (70, 0, true, true); if (field == 0) { mTurn.MoveTo (70, 670, true, true); } else { mField.MoveTo (100, scanPos + (field * 315), true, true); if (field > 3) scanPos += (360 * 7); if (field % 2 != 0) { mTurn.MoveTo (70, 570, true, true); } else { mTurn.MoveTo (70, 580, true, true); } } mArm.MoveTo (50, 20, true, true); mGrip.On (20); System.Threading.Thread.Sleep (300); mGrip.Off (); mArm.MoveTo (70, 0, true, true); mTurn.MoveTo (70, 0, true, true); mField.MoveTo (100, scanPos, true, true); } //variable to save fields rotation static int scanPos = 0; //search for the players move static void scan () { draw ("Bot is scanning..."); bool test = false; int i; while (test == false) { for (i=1; i<9; i++) { if (array [i] == 0) { mField.MoveTo (100, scanPos + (i * 315), true, true); if (cSensor.Read () > 0) { array [i] = 2; test = true; break; } } } if (i > 3) scanPos += (360 * 7); mField.MoveTo (100, scanPos, true, true); //if the new move is not detected it has to be the center field if (test == false && array [0] == 0) { array [0] = 2; break; } } } //wait for the player to make his move static void waitForPlayer () { draw ("Players Turn"); while (irSensor.Read() <= 15) { } while (irSensor.Read() > 15) { } System.Threading.Thread.Sleep (3000); } //End programm when Esc is hit static void registerAbortEvent () { ButtonEvents buts = new ButtonEvents (); buts.EscapePressed += () => { Environment.Exit (0); }; } static Motor mField = new Motor (MotorPort.OutC); static Motor mArm = new Motor (MotorPort.OutB); static Motor mGrip = new Motor (MotorPort.OutD); static Motor mTurn = new Motor (MotorPort.OutA); static ColorSensor cSensor = new ColorSensor (SensorPort.In1); static IRSensor irSensor = new IRSensor (SensorPort.In2, IRMode.Proximity); public static void Main (string[] args) { mField.ResetTacho (); mArm.ResetTacho (); mTurn.ResetTacho (); registerAbortEvent (); waitForPlayer (); //remove these lines to make the bot start scan (); //remove these lines to make the bot start //first move is hardcoded if (array [0] == 2) { put (1); } else { put (0); } int nextMove; while (true) { waitForPlayer (); scan (); if (finished ()) { draw ("PLAYER WINS!"); break; } nextMove = check (1); if (nextMove == -1) nextMove = check (2); if ((array [1] == 2 && array [5] == 2 && array [0] == 1) || (array [7] == 2 && array [3] == 2 && array [0] == 1)) { //change the strategy to avoid a trap situation if (nextMove == -1) nextMove = freeEdge (); if (nextMove == -1) nextMove = freeCorner (); } else { if (nextMove == -1) nextMove = freeCorner (); if (nextMove == -1) nextMove = freeEdge (); } if (nextMove == -1) { draw ("GAME OVER"); break; } put (nextMove); if (finished ()) { draw ("BOT WINS!"); break; } } System.Threading.Thread.Sleep (3 * 60 * 1000); } } }
- This reply was modified 10 years, 7 months ago by Orlando_2k.
May 14, 2014 at 14:48 #4340
Helmut WunderParticipantthanks for sharing your project!
Surely not only an amazing project but also a big help for people starting with mono to look and learn from your code!
😎as some people in our German forum are just about starting with Mono I linked your project for people who might be interested:
May 14, 2014 at 15:22 #4341
Orlando_2kParticipantawesome,
I am from Germany, too.EDIT: Oh, and you’re an admin of http://www.mindstormsforum.de
I will have to take a look at this forum 😀- This reply was modified 10 years, 7 months ago by Orlando_2k.
May 14, 2014 at 15:53 #4343
Helmut WunderParticipantyou’re welcome to join us 🙂
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