Moving ASCII Character

This is a discussion on Moving ASCII Character within the Game Programming forums, part of the General Programming Boards category; I am trying to make an ASCII character move across a map. Example: .......... ...!...... .......... .......... .......... .......... I ...

  1. #1
    Registered User Ranedhel's Avatar
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    Moving ASCII Character

    I am trying to make an ASCII character move across a map.

    Example:

    ..........
    ...!......
    ..........
    ..........
    ..........
    ..........

    I want the '!' to move Up, Down, Left and Right depending on the key you enter. Not sure at all how to do this, help or an example would be appriciated.

    -Thanks, Ranedhel
    -Elven Forge Software-
    (Lead Designer)

    http://www.geocities.com/elvenforge

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  2. #2
    End Of Line Hammer's Avatar
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    What have you tried so far?

    How about a simple 2-d array, like
    char a[10][10];
    to hold the map.
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  3. #3
    Registered User Ranedhel's Avatar
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    Re:

    yes, I thought of that - but I'm not totally sure how to put everything together. If it's not to much trouble, could you
    make me an example code?
    -Elven Forge Software-
    (Lead Designer)

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  4. #4
    End Of Line Hammer's Avatar
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    This creates a 10x10 array, and populates all elements with a dot.
    Code:
    #include <stdio.h>
    
    int main(void)
    {
      char a[10][10];
      int i, j;
      
      for (i = 0; i < 10; i++)
        for (j = 0; j < 10; j++)
          a[i][j] = '.';
      
      return(0);
    }
    Now see if you can make it work for you
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  5. #5
    Registered User Ranedhel's Avatar
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    Re:

    Heh, I'm sorta new to arrays, I'm not exactly sure how to display the elements.
    -Elven Forge Software-
    (Lead Designer)

    http://www.geocities.com/elvenforge

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  6. #6
    End Of Line Hammer's Avatar
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    You need to read up on it then

    printf ("%c", a[i][j]);
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  7. #7
    Registered User Ranedhel's Avatar
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    Re:

    Heh, Good Idea. Thanks.
    -Elven Forge Software-
    (Lead Designer)

    http://www.geocities.com/elvenforge

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  8. #8
    End Of Line Hammer's Avatar
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    Or (and I should have said this in the first place):

    >>putchar(a[i][j]);
    When all else fails, read the instructions.
    If you're posting code, use code tags: [code] /* insert code here */ [/code]

  9. #9
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    um.. what about just saving the position of this special character and when you want to move you redraw the map (10x10) and put the special character on its position like this:

    Code:
    for(int y=0;y<MAX_Y;y++) //MAX_X is the width of you charmap
    { for(int x=0;x<MAX_X;x++) //guess what
        putch('.');
      putch('\n');
    }
    gotoxy(posx,posy);
    putch('!');
    greets,
    corpse

  10. #10
    Super Moderator VirtualAce's Avatar
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    Code:
    #define EMPTY 0
    #define PLAYER 1
    
    #define TRUE 1
    #define FALSE 0
    
    void DrawMap(void);
    void MovePlayer(int xmove,int ymove);
    void Init(void);
    void GetInput(void);
    void ClearScreen(void);
    
    void Init(void)
    {
    }
    
    void GetInput(void)
    {
    }
    
    void ClearScreen(void)
    {
    }
    
    
    void DrawMap(void)
    {
      for (int i=0;i<10;i++)
      {
        for (int j=0;j<10;j+)
        {
           switch (map[i][j])
           {
             case EMPTY: printf(".");break; 
             case PLAYER: printf("!");break;
           }
         }
         printf("\n");
      }
    }
    
    void MovePlayer(int xmove,int ymove)
    {
       if (xmove!=0)
       {
          int tempx=playerx+xmove;
          if (tempx>0 && tempx<10) playerx=tempx;
       }
    
       if (ymove!=0)
       {
          int tempy=playery+ymove;
          if (tempy>0 && tempy<10) playery=tempy;
          
       }
    }
    
    int main(void)
    {
       Init();
       while (Playing)
       {
         ClearScreen();
         DrawMap();
         GetInput();
       }
    return(0);
    }
    Just one example of how to draw the map and a small example of your main game loop - GetInput() does not return until the user does something so this is not a good real-time example. Also in real time you would not want to ClearScreen() every frame as this would cause a lot of flicker. To explain more I would have to go into details that might be beyond the scope of this thread.

    MovePlayer() does not check for map boundaries but it needs to. I'll leave this up to you. If you do not check the boundaries, this program will crash hard if you move off of the map. The emtpy functions are for you to figure out plus I'm too lazy to code them for you.




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