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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 |