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Hey Guys, How do I make this WASD code C, and also simplified? Im not smart im sorry.

#include <iostream>
#include <conio.h>
using namespace std;
int main()
    char ch=0;
    cout << "Press Q to quit\n";
        ch = getch();

            case 'W':
            case 'w':
                cout << "W was pressed \n";
            case 'A':
            case 'a':
                cout << "A was pressed \n";
            case 's':
            case 'S':
                cout << "S was pressed \n";
            case 'D':
            case 'd':
                cout << "D was pressed \n";


    }while (ch != 'Q' && ch!='q');

What I have tried:

I have done research, but I think I need a human to human answer. Cout does not work in C
Updated 6-Mar-21 7:48am
Rick York 5-Mar-21 11:15am    
Still haven't figured out tolower eh? All right then.
Richard MacCutchan 5-Mar-21 11:22am    
Why are you mixing conio with iostream? Use the very basic C libraries or the proper C++ libraries but don't mix the two.

C uses printf(), which is found in the <stdio.h> header. Since you appear to be using Windows, you may need to change getch() to _getch()
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[no name] 5-Mar-21 11:25am    
Here is code you can use to change a character to lower case so you don't have to check for both cases all the time.
inline int ToLower( int ch )
    const int diff = 'a' - 'A';
    if( ( ch >= 'A' ) && ( ch <= 'Z' ) )
        ch += diff;
    return ch;
This function exists in the standard C run-time library but I wanted you to see what it does so you can be encouraged to use it in future. I changed the name so it can co-exist in case you want to use this. One can make a similar function for toupper.
inline int ToUpper( int ch )
    const int diff = 'a' - 'A';
    if( ( ch >= 'a' ) && ( ch <= 'z' ) )
        ch -= diff;
    return ch;
They rely on the fact that the ASCII code for the characters of the two cases are parallel and a certain number of places apart - the diff value.

With that, you could use a function like this :
// in WinUser.h you will find these definitions : 
// #define VK_LEFT           0x25
// #define VK_UP             0x26
// #define VK_RIGHT          0x27
// #define VK_DOWN           0x28
// you can use them or define your own.
// VK stands for virtual key

int GetWASDvalue( int input )
    int chlow = ToLower( input );
    switch( chlow )
        case 'a' : return VK_LEFT;
        case 'w' : return VK_UP;
        case 'd' : return VK_RIGHT;
        case 's' : return VK_DOWN;
        // there are also VK_HOME and other values that can be added
    return 0;   // not recognized
You can feed this function an input character and it will give you a direction.
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