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direct robot

 
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  #1
Sep 25th, 2009
Hi, been working on this project and just confusing the heck out of myself with classes and stuff and was hoping maybe someone could lend a hand on what I might be doing wrong?

The general idea of this is to get the arrow (int 231-234) to point in the direct that the use clicked (n/s/w/e) and then when they press go 1 or go 10 it goes the direction selected and go either 1 or 10. But I have to limit it from going over 100 in any direct and show a message that they can't do that. And on load it set to 0,0 and set to north which I believe I have figured already.

General I'm confused on the class\method stuff, which is below, I think I got it right, but for some reason on my form I can't get it to find the getDirection function just errors up on all that.
I'm not sure if I coded something wrong or what, suggested hints or tricks would be helpful.
Thanks in advance.

Main Form:
C# Syntax (Toggle Plain Text) 
  1. using System;
  2. using System.Collections.Generic;
  3. using System.ComponentModel;
  4. using System.Data;
  5. using System.Drawing;
  6. using System.Linq;
  7. using System.Text;
  8. using System.Windows.Forms;
  9.  
  10.  
  11. namespace simple_robot
  12. {
  13.     public partial class Robot : Form   
  14.     {
  15.         Robot myRobot = new Robot();
  16.         public Robot()
  17.         {
  18.             InitializeComponent();
  19.             pointer.Text = myRobot.getDirection().ToString();
  20.         }
  21.  
  22.         private void button3_Click(object sender, EventArgs e)
  23.         {
  24.             this.Close();
  25.         }
  26.  
  27.         private void label1_Click(object sender, EventArgs e)
  28.         {
  29.  
  30.         }
  31.  
  32.         private void robotbox_SelectedIndexChanged(object sender, EventArgs e)
  33.         {
  34.  
  35.         }
  36.  
  37.         private void label1_Click_1(object sender, EventArgs e)
  38.         {
  39.  
  40.         }
  41.  
  42.         private void northBtn_Click(object sender, EventArgs e)
  43.         {
  44.             myRobot.setDirection(231);
  45.             pointer.Text = myRobot.getDirection().ToString();
  46.  
  47.         }
  48.  
  49.         private void westBtn_Click(object sender, EventArgs e)
  50.         {
  51.             myRobot.SetDirection(232);
  52.             pointer.Text = myRobot.getDirection().ToString();
  53.         }
  54.  
  55.         private void southBtn_Click(object sender, EventArgs e)
  56.         {
  57.             myRobot.SetDirection(233);
  58.             pointer.Text = myRobot.getDirection().ToString();
  59.         }
  60.  
  61.         private void eastBtn_Click(object sender, EventArgs e)
  62.         {
  63.             myRobot.SetDirection(234);
  64.             pointer.Text = myRobot.getDirection().ToString();
  65.         }
  66.  
  67.         private void label1_Click_2(object sender, EventArgs e)
  68.         {
  69.  
  70.         }
  71.  
  72.         private void button1_Click(object sender, EventArgs e)
  73.         {
  74.             this.OnClick = myRobot.getX(myRobot.getX() + 1);
  75.         }
  76.  
  77.         private void button2_Click(object sender, EventArgs e)
  78.         {
  79.             this.OnClick = myRobot.getX(myRobot.getX() + 10);
  80.         }
  81.     }
  82. }

robot.cs
C# Syntax (Toggle Plain Text) 
  1. using System;
  2. using System.Collections.Generic;
  3. using System.Linq;
  4. using System.Text;
  5.  
  6. namespace simple_robot
  7. {
  8.     class robot
  9.     {
  10.         private int direction;
  11.         private int x;
  12.         private int y;
  13.  
  14.         public void setDirection(int newDirection)
  15.         {
  16.             direction = newDirection;
  17.         }
  18.  
  19.         public int getDirection(int direction)
  20.         {
  21.             return direction; 
  22.         }
  23.  
  24.         public int getX()
  25.         {
  26.             return x;
  27.         }
  28.  
  29.         public int getY()
  30.         {
  31.             return y;
  32.         }
  33.  
  34.         public void move(int unitToMove)
  35.         {
  36.         }
  37.  
  38.         public robot()
  39.         {
  40.             x = 0;
  41.             y = 0;
  42.             direction = 231;
  43.         }
  44.  
  45.     }
  46. }
Last edited by EvilLinux; Sep 25th, 2009 at 2:47 pm.
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Re: direct robot

 
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  #2
Sep 25th, 2009
Whew!

Just going to concentrate on your robot class here.
Find out what automatic properties are.
I rewrote it so:
c# Syntax (Toggle Plain Text) 
  1. class robot
  2.     {
  3.         public robot() // Default constructor
  4.         {
  5.             location = new Point(); // Sets location.X=0 and location.Y=0          
  6.             direction = 231;
  7.         }
  8.  
  9.         public int direction { get; set; } //auto property
  10.         public Point location { get; set; } //auto property
  11.  
  12.         public void move(int unitToMove)        
  13.         {        
  14.         }              
  15.     }
Use this class like this:
c# Syntax (Toggle Plain Text) 
  1. robot Robby = new robot();
  2.             Point P = new Point();
  3.             P = Robby.location; // Get location of Robby
  4.  
  5.             Point P2 = new Point();
  6.             P2.X = 23; P2.Y = 100;
  7.             Robby.location = P2; // Set location of Robby
Today is a gift, that's why it is called "The Present".
Make love, no war. Cave ab homine unius libri.
Danny
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Re: direct robot

 
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  #3
Sep 25th, 2009
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Originally Posted by ddanbe View Post
Whew!

Just going to concentrate on your robot class here.
Find out what automatic properties are.
I rewrote it so:
c# Syntax (Toggle Plain Text) 
  1. class robot
  2.     {
  3.         public robot() // Default constructor
  4.         {
  5.             location = new Point(); // Sets location.X=0 and location.Y=0          
  6.             direction = 231;
  7.         }
  8.  
  9.         public int direction { get; set; } //auto property
  10.         public Point location { get; set; } //auto property
  11.  
  12.         public void move(int unitToMove)        
  13.         {        
  14.         }              
  15.     }
Use this class like this:
c# Syntax (Toggle Plain Text) 
  1. robot Robby = new robot();
  2.             Point P = new Point();
  3.             P = Robby.location; // Get location of Robby
  4.  
  5.             Point P2 = new Point();
  6.             P2.X = 23; P2.Y = 100;
  7.             Robby.location = P2; // Set location of Robby
I'll play around with this, why the heck doesn't my book cover this, idk but wish it did because this makes more sense then C# 2.0 way ~_~.
Thanks, although confused on the second part of the code where do you work with that, I'm guessing the form itself?
Last edited by EvilLinux; Sep 25th, 2009 at 4:05 pm.
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Re: direct robot

 
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  #4
Sep 25th, 2009
This is indeed example code in a form.
Today is a gift, that's why it is called "The Present".
Make love, no war. Cave ab homine unius libri.
Danny
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Re: direct robot

 
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  #5
Sep 25th, 2009
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Originally Posted by ddanbe View Post
This is indeed example code in a form.
ok cool, I'm going to keep trying to solve the project with the C# 2.0 way because idk what is required for the assignment, I'm figuring follow the way the book is teaching . SO going to have to use the old method of coding C# 2.0 crap. But if I give up on that I'll go with this way which seems a lot simpler.
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Re: direct robot

 
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  #6
Sep 25th, 2009
I'm going to feel slightly bad for wasting a bit of your time, I figured a big issue I had, one of my methods was called setDirection if you look in my form I put it as SetDirection and was causing HUGE issues. I think I'm more on track now with my form. I'll post if I need some help again, but I think I'm figure out the C#2.0 way lol.
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Re: direct robot

 
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  #7
Sep 25th, 2009
This is how I think your complete robot class might look like:
c# Syntax (Toggle Plain Text) 
  1. class robot
  2.     {      
  3.         public enum Direction
  4.         {
  5.             North, West, South, East
  6.         }
  7.  
  8.         public robot() // Default constructor
  9.         {
  10.             location = new Point(); // Sets location.X=0 and location.Y=0          
  11.             direction = Direction.North;
  12.         }
  13.  
  14.         public Direction direction { get; set; }
  15.         public Point location { get; set; }
  16.  
  17.         public void Move(int unitToMove)        
  18.         {
  19.             Point P = new Point();
  20.  
  21.             switch (direction)
  22.             {
  23.                 case Direction.North:
  24.                     P.X = location.X;
  25.                     P.Y = location.Y - unitToMove;
  26.                     break;
  27.                 case Direction.West:
  28.                     P.X = location.X - unitToMove;
  29.                     P.Y = location.Y;
  30.                     break;
  31.                 case Direction.South:
  32.                     P.X = location.X;
  33.                     P.Y = location.Y + unitToMove;
  34.                     break;
  35.                 case Direction.East:
  36.                     P.X = location.X + unitToMove;
  37.                     P.Y = location.Y;
  38.                     break;
  39.                 default:
  40.                     break;
  41.             }
  42.             location = P;
  43.         }
  44.  
  45.         public void Draw(Graphics G)
  46.         {
  47.             // Our robot will look like a red ball
  48.             // but you could draw anything here
  49.             SolidBrush redBrush = new SolidBrush(Color.Red);
  50.             Size S = new Size(40,40);
  51.             Rectangle R = new Rectangle(location, S);
  52.             // Make a red ball size 40,40 and put it at location
  53.             G.FillEllipse(redBrush, R);
  54.         }
  55.     }
Today is a gift, that's why it is called "The Present".
Make love, no war. Cave ab homine unius libri.
Danny
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Re: direct robot

 
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  #8
Sep 25th, 2009
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Originally Posted by ddanbe View Post
This is how I think your complete robot class might look like:
c# Syntax (Toggle Plain Text) 
  1. class robot
  2.     {      
  3.         public enum Direction
  4.         {
  5.             North, West, South, East
  6.         }
  7.  
  8.         public robot() // Default constructor
  9.         {
  10.             location = new Point(); // Sets location.X=0 and location.Y=0          
  11.             direction = Direction.North;
  12.         }
  13.  
  14.         public Direction direction { get; set; }
  15.         public Point location { get; set; }
  16.  
  17.         public void Move(int unitToMove)        
  18.         {
  19.             Point P = new Point();
  20.  
  21.             switch (direction)
  22.             {
  23.                 case Direction.North:
  24.                     P.X = location.X;
  25.                     P.Y = location.Y - unitToMove;
  26.                     break;
  27.                 case Direction.West:
  28.                     P.X = location.X - unitToMove;
  29.                     P.Y = location.Y;
  30.                     break;
  31.                 case Direction.South:
  32.                     P.X = location.X;
  33.                     P.Y = location.Y + unitToMove;
  34.                     break;
  35.                 case Direction.East:
  36.                     P.X = location.X + unitToMove;
  37.                     P.Y = location.Y;
  38.                     break;
  39.                 default:
  40.                     break;
  41.             }
  42.             location = P;
  43.         }
  44.  
  45.         public void Draw(Graphics G)
  46.         {
  47.             // Our robot will look like a red ball
  48.             // but you could draw anything here
  49.             SolidBrush redBrush = new SolidBrush(Color.Red);
  50.             Size S = new Size(40,40);
  51.             Rectangle R = new Rectangle(location, S);
  52.             // Make a red ball size 40,40 and put it at location
  53.             G.FillEllipse(redBrush, R);
  54.         }
  55.     }
Damn was pretty close to this. the switch direction part is what I was getting caught up on just now. I'm using a label that using Wingdings font with int 231-234 to cause the arrow, that is the only thing I can't figure out. Thank you again.
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Re: direct robot

 
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  #9
Sep 25th, 2009
I should also put a Panel on your Form, and use the Paint event of that Panel, so you can have a Graphics object to draw the robot in.
Seems to me much better than moving around a Label with a strange Font. Albeit, I must admit it was a nice try
Last edited by ddanbe; Sep 25th, 2009 at 6:14 pm.
Today is a gift, that's why it is called "The Present".
Make love, no war. Cave ab homine unius libri.
Danny
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Re: direct robot

 
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  #10
Sep 25th, 2009
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Originally Posted by ddanbe View Post
I should also put a Panel on your Form, and use the Paint event of that Panel, so you can have a Graphics object to draw the robot in.
Seems to me much better than moving around a Label with a strange Font.
I know I'd love that also, but the assignment calls to use this retarded looking wingdingy thing.. I'm sure if I did a wonderful paint and all that it would look cool, but probably get an F for failing directions. I'm just trying to get through this stuff because I have a handle on it, but the assignments are 1 week long and are 50% not covered in the book which is why I come here for help .
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