/* GNU Chess 5.0 - input.c - Input thread and related
Bastardized version since we have no RTOS - unless we were
to try an interrupt driven UART input scheme.
*/
/*
* All the pthread stuff should be hidden here, all the
* readline things, too. (I.e., all the potentially troublesome
* libraries.
*/
#include
#include
#include
#include "common.h"
#include "graphics.h"
/*
* input_status is a boolean to indicate if a command
* is being parsed and processed. It is set by
* input function, and must be cleared by the thread
* that uses the input.
*
* The main loop may explicitly wait_for_input, or
* when pondering will examine the input_status
* variable in Iterate.
*
*/
// Since we are not multithreading, we report that input is always available.
volatile int input_status = INPUT_AVAILABLE;
char inputstr[MAXSTR];
extern void getline_standard(char *p);
extern void getline_restore(char *p);
void InitInput(void)
// Initialize the input system.
{
getline = getline_standard;
}
void CleanupInput(void)
// Shutdown the input system.
{
}
void wait_for_input(void)
// Gets a new line of input into inputstr.
// This is called directly from main().
{ char prompt[MAXSTR] = "";
sprintf(prompt,"%s (%d) : ",
RealSide ? "Black" : "White",
(RealGameCnt+1)/2 + 1 );
sound_yourmove();
getline(prompt);
}
void input_wakeup(void)
// Not needed here. Used to signal that input had been consumed, and
// thus re-activates the input stream.
{
// pthread_mutex_lock(&input_mutex);
// input_status = INPUT_NONE;
// pthread_mutex_unlock(&input_mutex);
// pthread_mutex_lock(&wakeup_mutex);
// pthread_cond_signal(&wakeup_cond);
// pthread_mutex_unlock(&wakeup_mutex);
}
/* The generic input routine. */
void getline_standard(char *p)
{ LOC from, to;
WORD btns;
if (!(flags & XBOARD))
{ fputs(p, stdout);
fflush(stdout);
}
*inputstr = 0;
do
{ if (panel_getmove(RealSide ? BLACK : WHITE, from, to))
{ // Process touchpad event
sprintf(inputstr, "%c%c%c%c\n", from[1]+'a', from[0]+'1', to[1]+'a', to[0]+'1');
printf("User move: %s", inputstr);
}
else if ((btns=panel_pollbtns()) != 0)
{ // Process special function buttons
if (btns & BTN_NEW)
{ strcpy(inputstr, "new\n");
printf(inputstr);
}
else if (btns & BTN_SAVE)
{ printf("Saving game position...\n");
panel_save();
}
else if (btns & BTN_LOAD)
{ if (panel_load())
{ printf("Loading game position...\n");
sprintf(inputstr, "setboard %s\n", panel_getEPD());
}
else
printf("*** ERROR - no saved position");
}
else if (btns & BTN_GO)
{ strcpy(inputstr, "go\n");
printf(inputstr);
}
// Wait for button release
while (panel_pollbtns() != 0)
;
}
else if (panel_polltty())
{ // Process TTY command:
gets(inputstr);
}
} while (*inputstr == 0);
}
