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wordchallenge.c
executable file
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wordchallenge.c
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//Copyright 2010, Nathaniel Flath
#include <X11/extensions/XTest.h>
#include <X11/keysym.h>
#include <X11/keysymdef.h>
#include <X11/Xlib.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define true 1
#define false 0
#define NUM_WORDS 14243
typedef int bool;
char** dictionary;
Display* display;
void loop_through_dictionary( char* letters );
void send_key( KeyCode c, int t);
int load_dict();
//Driver for the Word Challenge bot. Loads the dictionary, then loops forever
//performing the following process:
// 1. Take ascreenshot
// 2. Cut out the individual letters from the screenshot and run them through
// Tesseract
// 3. Read the output of Tesseract and use these to send every word
// combination using these letters to Word Challenge.
//After ten seconds have elapsed, the program kills itself. If this does not happen,
//no progress is being made and should be restarted (by the perl script that keeps it running.)
//This program is very dependant on your resolution and location/size of the browser you have Word Challenge opened in.
int main(int argc, char *argv[]) {
int i;
time_t start, end;
display = XOpenDisplay(NULL);
dictionary = malloc( sizeof( char* ) * NUM_WORDS );
load_dict();
char* c = malloc( sizeof( char ) * 10 );
char* old = malloc( 10 );
start = time (NULL);
while( true ) {
end = time (NULL);
send_key( XKeysymToKeycode( display, XK_Return ), 0);
send_key( XKeysymToKeycode( display, XK_Control_L ), 0);
sleep( 1 );
system( "scrot screen.jpg" );
system( "convert screen.jpg -crop 40x35+400+500 -type Grayscale letter0.tif" );
system( "convert screen.jpg -crop 38x35+455+500 -type Grayscale letter1.tif" );
system( "convert screen.jpg -crop 38x35+510+500 -type Grayscale letter2.tif" );
system( "convert screen.jpg -crop 38x35+565+500 -type Grayscale letter3.tif" );
system( "convert screen.jpg -crop 37x35+620+500 -type Grayscale letter4.tif" );
system( "convert screen.jpg -crop 37x35+675+500 -type Grayscale letter5.tif" );
system( "tesseract letter0.tif letter0" );
system( "tesseract letter1.tif letter1" );
system( "tesseract letter2.tif letter2" );
system( "tesseract letter3.tif letter3" );
system( "tesseract letter4.tif letter4" );
system( "tesseract letter5.tif letter5" );
FILE* l0 = fopen( "letter0.txt", "r" );
FILE* l1 = fopen( "letter1.txt", "r" );
FILE* l2 = fopen( "letter2.txt", "r" );
FILE* l3 = fopen( "letter3.txt", "r" );
FILE* l4 = fopen( "letter4.txt", "r" );
FILE* l5 = fopen( "letter5.txt", "r" );
fscanf( l0, "%c", c );
fscanf( l1, "%c", c + 1 );
fscanf( l2, "%c", c + 2 );
fscanf( l3, "%c", c + 3 );
fscanf( l4, "%c", c + 4 );
fscanf( l5, "%c", c + 5 );
system( "rm letter*.txt" );
for( i = 0; c[i]; i++ ){
if (c[i] == '0' ) c[i] = 'o';
else if (c[i] < 'A' || c[i] > 'Z' ) c[i] = 'i';
else c[i] += 32;
}
c[6] = 0;
printf( "%s\n", c );
if( strcmp(old, c ) ) {
start = time (NULL);
loop_through_dictionary( c );
strcpy( old, c );
}
if (end - start >= 10) {
XCloseDisplay (display);
return 0;
}
}
XCloseDisplay( display );
return 0;
}
//Simulates typing of a single key.
void send_key( KeyCode k, int time )
{
XTestFakeKeyEvent( display, k, True, time );
XTestFakeKeyEvent( display, k, False, time );
}
//Sends the given word to the Word Challenge player.
void send_word( char* word ) {
char* c = word;
int time = 0;
send_key( XKeysymToKeycode( display, XK_Return), time );
while( *c ) {
time += 1;
switch( *c ){
case 'a': send_key( XKeysymToKeycode( display, XK_A ), time ); break;
case 'b': send_key( XKeysymToKeycode( display, XK_B ), time ); break;
case 'c': send_key( XKeysymToKeycode( display, XK_C ), time ); break;
case 'd': send_key( XKeysymToKeycode( display, XK_D ), time ); break;
case 'e': send_key( XKeysymToKeycode( display, XK_E ), time ); break;
case 'f': send_key( XKeysymToKeycode( display, XK_F ), time ); break;
case 'g': send_key( XKeysymToKeycode( display, XK_G ), time ); break;
case 'h': send_key( XKeysymToKeycode( display, XK_H ), time ); break;
case 'i': send_key( XKeysymToKeycode( display, XK_I ), time ); break;
case 'j': send_key( XKeysymToKeycode( display, XK_J ), time ); break;
case 'k': send_key( XKeysymToKeycode( display, XK_K ), time ); break;
case 'l': send_key( XKeysymToKeycode( display, XK_L ), time ); break;
case 'm': send_key( XKeysymToKeycode( display, XK_M ), time ); break;
case 'n': send_key( XKeysymToKeycode( display, XK_N ), time ); break;
case 'o': send_key( XKeysymToKeycode( display, XK_O ), time ); break;
case 'p': send_key( XKeysymToKeycode( display, XK_P ), time ); break;
case 'q': send_key( XKeysymToKeycode( display, XK_Q ), time ); break;
case 'r': send_key( XKeysymToKeycode( display, XK_R ), time ); break;
case 's': send_key( XKeysymToKeycode( display, XK_S ), time ); break;
case 't': send_key( XKeysymToKeycode( display, XK_T ), time ); break;
case 'u': send_key( XKeysymToKeycode( display, XK_U ), time ); break;
case 'v': send_key( XKeysymToKeycode( display, XK_V ), time ); break;
case 'w': send_key( XKeysymToKeycode( display, XK_W ), time ); break;
case 'x': send_key( XKeysymToKeycode( display, XK_X ), time ); break;
case 'y': send_key( XKeysymToKeycode( display, XK_Y ), time ); break;
case 'z': send_key( XKeysymToKeycode( display, XK_Z ), time ); break;
}
c++;
}
send_key( XKeysymToKeycode( display, XK_Return ), time);
}
//Sends all words in the dictionary that can be formed by the given set of letters, then switches to the next
//set of letters.
void loop_through_dictionary( char* letters ) {
int x;
for( x = 0; x < NUM_WORDS; x++ ) {
if( composed_of( dictionary[x], letters ) && strlen( dictionary[x]) < 6 ) {
send_word( dictionary[x] );
}
}
sleep( 1 );
send_key( XKeysymToKeycode( display, XK_Control_L ) , 1);
}
//Loads the dictionary from file
int load_dict()
{
int x;
FILE* f = fopen( "corncob_lowercase.txt", "r" );
for( x = 0; x < NUM_WORDS; x++ ) {
char* c = malloc( 20 );
fscanf( f, "%s", c );
dictionary[x] = c;
}
}
//Returns whether the given word can be created using the given letters.
//Assumes some incorrectness in the optical recognition; has several
//common mistakes hardcoded.
bool composed_of( char* word, char* letters ) {
char* c = word;
bool unknown = false;
while( *c ) {
char* l = letters;
bool found = false;
while( *l ) {
if( *l == *c ) {
found = true;
break;
}
if ( ( *l == 'y' && *c == 'p') ||
( *l == 'w' && *c == 'm') ||
( *l == 'i' && *c == 'r') ||
( *l == 'i' && *c == 's') ) {
found = true;
break;
}
l++;
}
if( !found ) return false;
c++;
}
return true;
}