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/* $Id: pause.c,v 1.14 2002/07/10 11:01:37 oohara Exp $ */
#include <stdio.h>
/* WINDOW_WIDTH */
#include "const.h"
/* draw_string() */
#include "util.h"
/* tenm_redraw_window() */
#include "tenm_graphic.h"
#include "pause.h"
static int paused = 0;
static int paused_modify_ok = 1;
static int show_pause_message(void);
void
clear_pause(void)
{
paused = 0;
paused_modify_ok = 1;
}
/* return 1 if the game is paused, 0 if not */
int
do_pause(int pause_key_pressed)
{
if (pause_key_pressed)
{
if (paused_modify_ok)
{
paused_modify_ok = 0;
if (paused)
{
paused = 0;
}
else
{
paused = 1;
if (show_pause_message() != 0)
fprintf(stderr, "do_pause: show_pause_message failed\n");
}
}
}
else
{
paused_modify_ok = 1;
}
if (paused)
return 1;
return 0;
}
/* pause the game if the mouse cursor is out of the window
* note that moving the mouse cursor into the window does not
* continue the game
*/
void
pause_by_mouse(int gain)
{
if ((gain != 1) && (!(paused)))
{
paused = 1;
if (show_pause_message() != 0)
fprintf(stderr, "pause_by_mouse: show_pause_message failed\n");
}
}
/* return 0 on success, 1 on error */
static int
show_pause_message(void)
{
int status = 0;
if (draw_string(10, WINDOW_HEIGHT - 40, "paused --- press p "
"to continue", 30) != 0)
{
fprintf(stderr, "show_pause_message: draw_string failed\n");
status = 1;
}
if (tenm_redraw_window() != 0)
{
fprintf(stderr, "show_pause_message: tenm_redraw_window failed\n");
status = 1;
}
return status;
}
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