WebSVN – HelenOS-historic – Diff – /uspace/trunk/tetris/screen.c


/*  $OpenBSD: screen.c,v 1.13 2006/04/20 03:25:36 ray Exp $ */
/*  $NetBSD: screen.c,v 1.4 1995/04/29 01:11:36 mycroft Exp $   */
 
/*-
 * Copyright (c) 1992, 1993
 *  The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Chris Torek and Darren F. Provine.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *  @(#)screen.c    8.1 (Berkeley) 5/31/93
 */
 
/*
 * Tetris screen control.
 */
 
#include <err.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <io/stream.h>
 
 
#include <async.h>
#include "screen.h"
#include "tetris.h"
#include "../console/console.h"
 
static cell curscreen[B_SIZE];  /* 1 => standout (or otherwise marked) */
static int curscore;
static int isset;       /* true => terminal is in game mode */
static struct termios oldtt;
static void (*tstp)(int);
 
static void scr_stop(int);
static void stopset(int);
 
static char
        *CEstr;         /* clear to end of line */
 
 
/*
 * putstr() is for unpadded strings (either as in termcap(5) or
 * simply literal strings);
 */
#define putstr(s)   puts(s)
 
static int con_phone;
 
 
 
static void set_style(int fgcolor, int bgcolor)
{
    send_call_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor);
}
 
static void start_standout(void)
{
    set_style(0, 0xe0e0e0);
}
 
static void resume_normal(void)
{
    set_style(0xe0e0e0, 0);
}
 
/*
 * Clear the screen, forgetting the current contents in the process.
 */
void
scr_clear(void)
{
 
    resume_normal();
    send_call(con_phone, CONSOLE_CLEAR, 0);
    curscore = -1;
    memset((char *)curscreen, 0, sizeof(curscreen));
}
 
/*
 * Set up screen
 */
void
scr_init(void)
{
    con_phone = get_fd_phone(1);
    resume_normal();
    scr_clear();
}
 
static void moveto(int r, int c)
{
    send_call_2(con_phone, CONSOLE_GOTO, r, c);
}
 
static void fflush(void)
{
    send_call(con_phone, CONSOLE_FLUSH, 0);
}
 
struct winsize {
    ipcarg_t ws_row;
    ipcarg_t ws_col;
};
 
static int get_display_size(struct winsize *ws)
{
    return sync_send_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col);
}
 
static void
scr_stop(int sig)
{
 
    scr_end();
    scr_set();
    scr_msg(key_msg, 1);
}
 
/*
 * Set up screen mode.
 */
void
scr_set(void)
{
    struct winsize ws;
 
    Rows = 0, Cols = 0;
    if (get_display_size(&ws) == 0) {
        Rows = ws.ws_row;
        Cols = ws.ws_col;
    }
    if (Rows < MINROWS || Cols < MINCOLS) {
        char smallscr[55];
 
        snprintf(smallscr, sizeof(smallscr),
            "the screen is too small (must be at least %dx%d)",
            MINROWS, MINCOLS);
        stop(smallscr);
    }
    isset = 1;
 
    scr_clear();
}
 
/*
 * End screen mode.
 */
void
scr_end(void)
{
}
 
void
stop(char *why)
{
 
    if (isset)
        scr_end();
    errx(1, "aborting: %s", why);
}
 
 
/*
 * Update the screen.
 */
void
scr_update(void)
{
    cell *bp, *sp;
    cell so, cur_so = 0;
    int i, ccol, j;
    static const struct shape *lastshape;
 
    /* always leave cursor after last displayed point */
    curscreen[D_LAST * B_COLS - 1] = -1;
 
    if (score != curscore) {
        moveto(0, 0);
        printf("Score: %d", score);
        curscore = score;
    }
 
    /* draw preview of next pattern */
    if (showpreview && (nextshape != lastshape)) {
        int i;
        static int r=5, c=2;
        int tr, tc, t;
 
        lastshape = nextshape;
 
        /* clean */
        resume_normal();
        moveto(r-1, c-1); putstr("          ");
        moveto(r,   c-1); putstr("          ");
        moveto(r+1, c-1); putstr("          ");
        moveto(r+2, c-1); putstr("          ");
 
        moveto(r-3, c-2);
        putstr("Next shape:");
 
        /* draw */
        start_standout();
        moveto(r, 2 * c);
        putstr("  ");
        for (i = 0; i < 3; i++) {
            t = c + r * B_COLS;
            t += nextshape->off[i];
 
            tr = t / B_COLS;
            tc = t % B_COLS;
 
            moveto(tr, 2*tc);
            putstr("  ");
        }
        resume_normal();
    }
 
    bp = &board[D_FIRST * B_COLS];
    sp = &curscreen[D_FIRST * B_COLS];
    for (j = D_FIRST; j < D_LAST; j++) {
        ccol = -1;
        for (i = 0; i < B_COLS; bp++, sp++, i++) {
            if (*sp == (so = *bp))
                continue;
            *sp = so;
            if (i != ccol) {
                if (cur_so) {
                    resume_normal();
                    cur_so = 0;
                }
                moveto(RTOD(j), CTOD(i));
            }
            if (so != cur_so) {
                if (so)
                    start_standout();
                else
                    resume_normal();
                cur_so = so;
            }
            putstr("  ");
 
            ccol = i + 1;
            /*
             * Look ahead a bit, to avoid extra motion if
             * we will be redrawing the cell after the next.
             * Motion probably takes four or more characters,
             * so we save even if we rewrite two cells
             * `unnecessarily'.  Skip it all, though, if
             * the next cell is a different color.
             */
#define STOP (B_COLS - 3)
            if (i > STOP || sp[1] != bp[1] || so != bp[1])
                continue;
            if (sp[2] != bp[2])
                sp[1] = -1;
            else if (i < STOP && so == bp[2] && sp[3] != bp[3]) {
                sp[2] = -1;
                sp[1] = -1;
            }
        }
    }
    if (cur_so)
        resume_normal();
 
    fflush();
}
 
/*
 * Write a message (set!=0), or clear the same message (set==0).
 * (We need its length in case we have to overwrite with blanks.)
 */
void
scr_msg(char *s, int set)
{
   
    int l = strlen(s);
   
    moveto(Rows - 2, ((Cols - l) >> 1) - 1);
    if (set)
        putstr(s);
    else
        while (--l >= 0)
            (void) putchar(' ');
}
 

Rev 1528	Rev 1532
1	/* $OpenBSD: screen.c,v 1.13 2006/04/20 03:25:36 ray Exp $ */	1	/* $OpenBSD: screen.c,v 1.13 2006/04/20 03:25:36 ray Exp $ */
2	/* $NetBSD: screen.c,v 1.4 1995/04/29 01:11:36 mycroft Exp $ */	2	/* $NetBSD: screen.c,v 1.4 1995/04/29 01:11:36 mycroft Exp $ */
3		3
4	/*-	4	/*-
5	* Copyright (c) 1992, 1993	5	* Copyright (c) 1992, 1993
6	* The Regents of the University of California. All rights reserved.	6	* The Regents of the University of California. All rights reserved.
7	*	7	*
8	* This code is derived from software contributed to Berkeley by	8	* This code is derived from software contributed to Berkeley by
9	* Chris Torek and Darren F. Provine.	9	* Chris Torek and Darren F. Provine.
10	*	10	*
11	* Redistribution and use in source and binary forms, with or without	11	* Redistribution and use in source and binary forms, with or without
12	* modification, are permitted provided that the following conditions	12	* modification, are permitted provided that the following conditions
13	* are met:	13	* are met:
14	* 1. Redistributions of source code must retain the above copyright	14	* 1. Redistributions of source code must retain the above copyright
15	* notice, this list of conditions and the following disclaimer.	15	* notice, this list of conditions and the following disclaimer.
16	* 2. Redistributions in binary form must reproduce the above copyright	16	* 2. Redistributions in binary form must reproduce the above copyright
17	* notice, this list of conditions and the following disclaimer in the	17	* notice, this list of conditions and the following disclaimer in the
18	* documentation and/or other materials provided with the distribution.	18	* documentation and/or other materials provided with the distribution.
19	* 3. Neither the name of the University nor the names of its contributors	19	* 3. Neither the name of the University nor the names of its contributors
20	* may be used to endorse or promote products derived from this software	20	* may be used to endorse or promote products derived from this software
21	* without specific prior written permission.	21	* without specific prior written permission.
22	*	22	*
23	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND	23	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE	24	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE	25	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE	26	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL	27	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS	28	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)	29	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT	30	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY	31	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF	32	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33	* SUCH DAMAGE.	33	* SUCH DAMAGE.
34	*	34	*
35	* @(#)screen.c 8.1 (Berkeley) 5/31/93	35	* @(#)screen.c 8.1 (Berkeley) 5/31/93
36	*/	36	*/
37		37
38	/*	38	/*
39	* Tetris screen control.	39	* Tetris screen control.
40	*/	40	*/
41		41
42	#include <err.h>	42	#include <err.h>
43	#include <stdio.h>	43	#include <stdio.h>
44	#include <stdlib.h>	44	#include <stdlib.h>
45	#include <string.h>	45	#include <string.h>
46	#include <unistd.h>	46	#include <unistd.h>
47	#include <io/stream.h>	47	#include <io/stream.h>
48		48
49		49
50	#include <async.h>	50	#include <async.h>
51	#include "screen.h"	51	#include "screen.h"
52	#include "tetris.h"	52	#include "tetris.h"
53	#include "../console/console.h"	53	#include "../console/console.h"
54		54
55	static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */	55	static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */
56	static int curscore;	56	static int curscore;
57	static int isset; /* true => terminal is in game mode */	57	static int isset; /* true => terminal is in game mode */
58	static struct termios oldtt;	58	static struct termios oldtt;
59	static void (*tstp)(int);	59	static void (*tstp)(int);
60		60
61	static void scr_stop(int);	61	static void scr_stop(int);
62	static void stopset(int);	62	static void stopset(int);
63		63
64	static char	64	static char
65	CEstr; / clear to end of line */	65	CEstr; / clear to end of line */
66		66
67		67
68	/*	68	/*
69	* putstr() is for unpadded strings (either as in termcap(5) or	69	* putstr() is for unpadded strings (either as in termcap(5) or
70	* simply literal strings);	70	* simply literal strings);
71	*/	71	*/
72	#define putstr(s) puts(s)	72	#define putstr(s) puts(s)
73		73
74	static int con_phone;	74	static int con_phone;
75		75
76		76
77		77
78	static void set_style(int fgcolor, int bgcolor)	78	static void set_style(int fgcolor, int bgcolor)
79	{	79	{
80	send_call_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor);	80	send_call_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor);
81	}	81	}
82		82
83	static void start_standout(void)	83	static void start_standout(void)
84	{	84	{
85	set_style(0, 0xe0e0e0);	85	set_style(0, 0xe0e0e0);
86	}	86	}
87		87
88	static void resume_normal(void)	88	static void resume_normal(void)
89	{	89	{
90	set_style(0xe0e0e0, 0);	90	set_style(0xe0e0e0, 0);
91	}	91	}
92		92
93	/*	93	/*
94	* Clear the screen, forgetting the current contents in the process.	94	* Clear the screen, forgetting the current contents in the process.
95	*/	95	*/
96	void	96	void
97	scr_clear(void)	97	scr_clear(void)
98	{	98	{
99		99
100	resume_normal();	100	resume_normal();
101	send_call(con_phone, CONSOLE_CLEAR, 0);	101	send_call(con_phone, CONSOLE_CLEAR, 0);
102	curscore = -1;	102	curscore = -1;
103	memset((char *)curscreen, 0, sizeof(curscreen));	103	memset((char *)curscreen, 0, sizeof(curscreen));
104	}	104	}
105		105
106	/*	106	/*
107	* Set up screen	107	* Set up screen
108	*/	108	*/
109	void	109	void
110	scr_init(void)	110	scr_init(void)
111	{	111	{
112	con_phone = get_fd_phone(1);	112	con_phone = get_fd_phone(1);
113	resume_normal();	113	resume_normal();
114	scr_clear();	114	scr_clear();
115	}	115	}
116		116
117	static void moveto(int r, int c)	117	static void moveto(int r, int c)
118	{	118	{
119	send_call_2(con_phone, CONSOLE_GOTO, r, c);	119	send_call_2(con_phone, CONSOLE_GOTO, r, c);
120	}	120	}
121		121
122	static void fflush(void)	122	static void fflush(void)
123	{	123	{
124	send_call(con_phone, CONSOLE_FLUSH, 0);	124	send_call(con_phone, CONSOLE_FLUSH, 0);
125	}	125	}
126		126
127	struct winsize {	127	struct winsize {
128	ipcarg_t ws_row;	128	ipcarg_t ws_row;
129	ipcarg_t ws_col;	129	ipcarg_t ws_col;
130	};	130	};
131		131
132	static int get_display_size(struct winsize *ws)	132	static int get_display_size(struct winsize *ws)
133	{	133	{
134	return sync_send_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col);	134	return sync_send_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col);
135	}	135	}
136		136
137	static void	137	static void
138	scr_stop(int sig)	138	scr_stop(int sig)
139	{	139	{
140		140
141	scr_end();	141	scr_end();
142	scr_set();	142	scr_set();
143	scr_msg(key_msg, 1);	143	scr_msg(key_msg, 1);
144	}	144	}
145		145
146	/*	146	/*
147	* Set up screen mode.	147	* Set up screen mode.
148	*/	148	*/
149	void	149	void
150	scr_set(void)	150	scr_set(void)
151	{	151	{
152	struct winsize ws;	152	struct winsize ws;
153		153
154	Rows = 0, Cols = 0;	154	Rows = 0, Cols = 0;
155	if (get_display_size(&ws) == 0) {	155	if (get_display_size(&ws) == 0) {
156	Rows = ws.ws_row;	156	Rows = ws.ws_row;
157	Cols = ws.ws_col;	157	Cols = ws.ws_col;
158	}	158	}
159	if (Rows < MINROWS \|\| Cols < MINCOLS) {	159	if (Rows < MINROWS \|\| Cols < MINCOLS) {
160	char smallscr[55];	160	char smallscr[55];
161		161
162	(void)snprintf(smallscr, sizeof(smallscr),	162	snprintf(smallscr, sizeof(smallscr),
163	"the screen is too small (must be at least %dx%d)",	163	"the screen is too small (must be at least %dx%d)",
164	MINROWS, MINCOLS);	164	MINROWS, MINCOLS);
165	stop(smallscr);	165	stop(smallscr);
166	}	166	}
167	isset = 1;	167	isset = 1;
168		168
169	scr_clear();	169	scr_clear();
170	}	170	}
171		171
172	/*	172	/*
173	* End screen mode.	173	* End screen mode.
174	*/	174	*/
175	void	175	void
176	scr_end(void)	176	scr_end(void)
177	{	177	{
178	}	178	}
179		179
180	void	180	void
181	stop(char *why)	181	stop(char *why)
182	{	182	{
183		183
184	if (isset)	184	if (isset)
185	scr_end();	185	scr_end();
186	errx(1, "aborting: %s", why);	186	errx(1, "aborting: %s", why);
187	}	187	}
188		188
189		189
190	/*	190	/*
191	* Update the screen.	191	* Update the screen.
192	*/	192	*/
193	void	193	void
194	scr_update(void)	194	scr_update(void)
195	{	195	{
196	cell bp, sp;	196	cell bp, sp;
197	cell so, cur_so = 0;	197	cell so, cur_so = 0;
198	int i, ccol, j;	198	int i, ccol, j;
199	static const struct shape *lastshape;	199	static const struct shape *lastshape;
200		200
201	/* always leave cursor after last displayed point */	201	/* always leave cursor after last displayed point */
202	curscreen[D_LAST * B_COLS - 1] = -1;	202	curscreen[D_LAST * B_COLS - 1] = -1;
203		203
204	if (score != curscore) {	204	if (score != curscore) {
205	moveto(0, 0);	205	moveto(0, 0);
206	(void) printf("Score: %d", score);	206	printf("Score: %d", score);
207	curscore = score;	207	curscore = score;
208	}	208	}
209		209
210	/* draw preview of next pattern */	210	/* draw preview of next pattern */
211	if (showpreview && (nextshape != lastshape)) {	211	if (showpreview && (nextshape != lastshape)) {
212	int i;	212	int i;
213	static int r=5, c=2;	213	static int r=5, c=2;
214	int tr, tc, t;	214	int tr, tc, t;
215		215
216	lastshape = nextshape;	216	lastshape = nextshape;
217		217
218	/* clean */	218	/* clean */
219	resume_normal();	219	resume_normal();
220	moveto(r-1, c-1); putstr(" ");	220	moveto(r-1, c-1); putstr(" ");
221	moveto(r, c-1); putstr(" ");	221	moveto(r, c-1); putstr(" ");
222	moveto(r+1, c-1); putstr(" ");	222	moveto(r+1, c-1); putstr(" ");
223	moveto(r+2, c-1); putstr(" ");	223	moveto(r+2, c-1); putstr(" ");
224		224
225	moveto(r-3, c-2);	225	moveto(r-3, c-2);
226	putstr("Next shape:");	226	putstr("Next shape:");
227		227
228	/* draw */	228	/* draw */
229	start_standout();	229	start_standout();
230	moveto(r, 2 * c);	230	moveto(r, 2 * c);
231	putstr(" ");	231	putstr(" ");
232	for (i = 0; i < 3; i++) {	232	for (i = 0; i < 3; i++) {
233	t = c + r * B_COLS;	233	t = c + r * B_COLS;
234	t += nextshape->off[i];	234	t += nextshape->off[i];
235		235
236	tr = t / B_COLS;	236	tr = t / B_COLS;
237	tc = t % B_COLS;	237	tc = t % B_COLS;
238		238
239	moveto(tr, 2*tc);	239	moveto(tr, 2*tc);
240	putstr(" ");	240	putstr(" ");
241	}	241	}
242	resume_normal();	242	resume_normal();
243	}	243	}
244		244
245	bp = &board[D_FIRST * B_COLS];	245	bp = &board[D_FIRST * B_COLS];
246	sp = &curscreen[D_FIRST * B_COLS];	246	sp = &curscreen[D_FIRST * B_COLS];
247	for (j = D_FIRST; j < D_LAST; j++) {	247	for (j = D_FIRST; j < D_LAST; j++) {
248	ccol = -1;	248	ccol = -1;
249	for (i = 0; i < B_COLS; bp++, sp++, i++) {	249	for (i = 0; i < B_COLS; bp++, sp++, i++) {
250	if (sp == (so = bp))	250	if (sp == (so = bp))
251	continue;	251	continue;
252	*sp = so;	252	*sp = so;
253	if (i != ccol) {	253	if (i != ccol) {
-		254	if (cur_so) {
-		255	resume_normal();
-		256	cur_so = 0;
-		257	}
254	moveto(RTOD(j), CTOD(i));	258	moveto(RTOD(j), CTOD(i));
255	}	259	}
256	if (so != cur_so) {	260	if (so != cur_so) {
257	if (so)	261	if (so)
258	start_standout();	262	start_standout();
259	else	263	else
260	resume_normal();	264	resume_normal();
261	cur_so = so;	265	cur_so = so;
262	}	266	}
263	putstr(" ");	267	putstr(" ");
-		268
264	ccol = i + 1;	269	ccol = i + 1;
265	/*	270	/*
266	* Look ahead a bit, to avoid extra motion if	271	* Look ahead a bit, to avoid extra motion if
267	* we will be redrawing the cell after the next.	272	* we will be redrawing the cell after the next.
268	* Motion probably takes four or more characters,	273	* Motion probably takes four or more characters,
269	* so we save even if we rewrite two cells	274	* so we save even if we rewrite two cells
270	* `unnecessarily'. Skip it all, though, if	275	* `unnecessarily'. Skip it all, though, if
271	* the next cell is a different color.	276	* the next cell is a different color.
272	*/	277	*/
273	#define STOP (B_COLS - 3)	278	#define STOP (B_COLS - 3)
274	if (i > STOP \|\| sp[1] != bp[1] \|\| so != bp[1])	279	if (i > STOP \|\| sp[1] != bp[1] \|\| so != bp[1])
275	continue;	280	continue;
276	if (sp[2] != bp[2])	281	if (sp[2] != bp[2])
277	sp[1] = -1;	282	sp[1] = -1;
278	else if (i < STOP && so == bp[2] && sp[3] != bp[3]) {	283	else if (i < STOP && so == bp[2] && sp[3] != bp[3]) {
279	sp[2] = -1;	284	sp[2] = -1;
280	sp[1] = -1;	285	sp[1] = -1;
281	}	286	}
282	}	287	}
283	}	288	}
-		289	if (cur_so)
284	resume_normal();	290	resume_normal();
285		-
286	fflush();	291	fflush();
287	}	292	}
288		293
289	/*	294	/*
290	* Write a message (set!=0), or clear the same message (set==0).	295	* Write a message (set!=0), or clear the same message (set==0).
291	* (We need its length in case we have to overwrite with blanks.)	296	* (We need its length in case we have to overwrite with blanks.)
292	*/	297	*/
293	void	298	void
294	scr_msg(char *s, int set)	299	scr_msg(char *s, int set)
295	{	300	{
296		301
297	int l = strlen(s);	302	int l = strlen(s);
298		303
299	moveto(Rows - 2, ((Cols - l) >> 1) - 1);	304	moveto(Rows - 2, ((Cols - l) >> 1) - 1);
300	if (set)	305	if (set)
301	putstr(s);	306	putstr(s);
302	else	307	else
303	while (--l >= 0)	308	while (--l >= 0)
304	(void) putchar(' ');	309	(void) putchar(' ');
305	}	310	}
306		311

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/tetris/screen.c – Rev 1528 → 1532