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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 | /** @addtogroup tetris |
38 | /** @addtogroup tetris |
39 | * @{ |
39 | * @{ |
40 | */ |
40 | */ |
41 | /** @file |
41 | /** @file |
42 | */ |
42 | */ |
43 | 43 | ||
44 | /* |
44 | /* |
45 | * Tetris screen control. |
45 | * Tetris screen control. |
46 | */ |
46 | */ |
47 | 47 | ||
48 | #include <err.h> |
48 | #include <err.h> |
49 | #include <stdio.h> |
49 | #include <stdio.h> |
50 | #include <stdlib.h> |
50 | #include <stdlib.h> |
51 | #include <string.h> |
51 | #include <string.h> |
52 | #include <unistd.h> |
52 | #include <unistd.h> |
53 | #include <io/stream.h> |
53 | #include <io/stream.h> |
54 | 54 | ||
55 | 55 | ||
56 | #include <async.h> |
56 | #include <async.h> |
57 | #include "screen.h" |
57 | #include "screen.h" |
58 | #include "tetris.h" |
58 | #include "tetris.h" |
59 | #include "../console/console.h" |
59 | #include "../console/console.h" |
60 | 60 | ||
61 | static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */ |
61 | static cell curscreen[B_SIZE]; /* 1 => standout (or otherwise marked) */ |
62 | static int curscore; |
62 | static int curscore; |
63 | static int isset; /* true => terminal is in game mode */ |
63 | static int isset; /* true => terminal is in game mode */ |
64 | 64 | ||
65 | 65 | ||
66 | /* |
66 | /* |
67 | * putstr() is for unpadded strings (either as in termcap(5) or |
67 | * putstr() is for unpadded strings (either as in termcap(5) or |
68 | * simply literal strings); |
68 | * simply literal strings); |
69 | */ |
69 | */ |
70 | static inline void putstr(char *s) |
70 | static inline void putstr(char *s) |
71 | { |
71 | { |
72 | while (*s) |
72 | while (*s) |
73 | putchar(*(s++)); |
73 | putchar(*(s++)); |
74 | } |
74 | } |
75 | 75 | ||
76 | static int con_phone; |
76 | static int con_phone; |
77 | 77 | ||
78 | 78 | ||
79 | 79 | ||
80 | static void set_style(int fgcolor, int bgcolor) |
80 | static void set_style(int fgcolor, int bgcolor) |
81 | { |
81 | { |
82 | async_msg_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor); |
82 | async_msg_2(con_phone, CONSOLE_SET_STYLE, fgcolor, bgcolor); |
83 | } |
83 | } |
84 | 84 | ||
85 | static void start_standout(void) |
85 | static void start_standout(void) |
86 | { |
86 | { |
87 | set_style(0xf0f0f0, 0); |
87 | set_style(0xf0f0f0, 0); |
88 | } |
88 | } |
89 | 89 | ||
90 | static void resume_normal(void) |
90 | static void resume_normal(void) |
91 | { |
91 | { |
92 | set_style(0, 0xf0f0f0); |
92 | set_style(0, 0xf0f0f0); |
93 | } |
93 | } |
94 | 94 | ||
95 | 95 | ||
96 | void clear_screen(void) |
96 | void clear_screen(void) |
97 | { |
97 | { |
98 | async_msg(con_phone, CONSOLE_CLEAR, 0); |
98 | async_msg(con_phone, CONSOLE_CLEAR, 0); |
99 | moveto(0,0); |
99 | moveto(0,0); |
100 | } |
100 | } |
101 | 101 | ||
102 | /* |
102 | /* |
103 | * Clear the screen, forgetting the current contents in the process. |
103 | * Clear the screen, forgetting the current contents in the process. |
104 | */ |
104 | */ |
105 | void |
105 | void |
106 | scr_clear(void) |
106 | scr_clear(void) |
107 | { |
107 | { |
108 | 108 | ||
109 | resume_normal(); |
109 | resume_normal(); |
110 | async_msg(con_phone, CONSOLE_CLEAR, 0); |
110 | async_msg(con_phone, CONSOLE_CLEAR, 0); |
111 | curscore = -1; |
111 | curscore = -1; |
112 | memset((char *)curscreen, 0, sizeof(curscreen)); |
112 | memset((char *)curscreen, 0, sizeof(curscreen)); |
113 | } |
113 | } |
114 | 114 | ||
115 | /* |
115 | /* |
116 | * Set up screen |
116 | * Set up screen |
117 | */ |
117 | */ |
118 | void |
118 | void |
119 | scr_init(void) |
119 | scr_init(void) |
120 | { |
120 | { |
121 | con_phone = get_fd_phone(1); |
121 | con_phone = get_fd_phone(1); |
122 | async_msg(con_phone, CONSOLE_CURSOR_VISIBILITY, 0); |
122 | async_msg(con_phone, CONSOLE_CURSOR_VISIBILITY, 0); |
123 | resume_normal(); |
123 | resume_normal(); |
124 | scr_clear(); |
124 | scr_clear(); |
125 | } |
125 | } |
126 | 126 | ||
127 | void moveto(int r, int c) |
127 | void moveto(int r, int c) |
128 | { |
128 | { |
129 | async_msg_2(con_phone, CONSOLE_GOTO, r, c); |
129 | async_msg_2(con_phone, CONSOLE_GOTO, r, c); |
130 | } |
130 | } |
131 | 131 | ||
132 | static void fflush(void) |
132 | static void fflush(void) |
133 | { |
133 | { |
134 | async_msg(con_phone, CONSOLE_FLUSH, 0); |
134 | async_msg(con_phone, CONSOLE_FLUSH, 0); |
135 | } |
135 | } |
136 | 136 | ||
137 | winsize_t winsize; |
137 | winsize_t winsize; |
138 | 138 | ||
139 | static int get_display_size(winsize_t *ws) |
139 | static int get_display_size(winsize_t *ws) |
140 | { |
140 | { |
141 | return async_req_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col); |
141 | return async_req_2(con_phone, CONSOLE_GETSIZE, 0, 0, &ws->ws_row, &ws->ws_col); |
142 | } |
142 | } |
143 | 143 | ||
144 | /* |
144 | /* |
145 | * Set up screen mode. |
145 | * Set up screen mode. |
146 | */ |
146 | */ |
147 | void |
147 | void |
148 | scr_set(void) |
148 | scr_set(void) |
149 | { |
149 | { |
150 | winsize_t ws; |
150 | winsize_t ws; |
151 | 151 | ||
152 | Rows = 0, Cols = 0; |
152 | Rows = 0, Cols = 0; |
153 | if (get_display_size(&ws) == 0) { |
153 | if (get_display_size(&ws) == 0) { |
154 | Rows = ws.ws_row; |
154 | Rows = ws.ws_row; |
155 | Cols = ws.ws_col; |
155 | Cols = ws.ws_col; |
156 | } |
156 | } |
157 | if (Rows < MINROWS || Cols < MINCOLS) { |
157 | if (Rows < MINROWS || Cols < MINCOLS) { |
158 | char smallscr[55]; |
158 | char smallscr[55]; |
159 | 159 | ||
160 | snprintf(smallscr, sizeof(smallscr), |
160 | snprintf(smallscr, sizeof(smallscr), |
161 | "the screen is too small (must be at least %dx%d)", |
161 | "the screen is too small (must be at least %dx%d)", |
162 | MINROWS, MINCOLS); |
162 | MINROWS, MINCOLS); |
163 | stop(smallscr); |
163 | stop(smallscr); |
164 | } |
164 | } |
165 | isset = 1; |
165 | isset = 1; |
166 | 166 | ||
167 | scr_clear(); |
167 | scr_clear(); |
168 | } |
168 | } |
169 | 169 | ||
170 | /* |
170 | /* |
171 | * End screen mode. |
171 | * End screen mode. |
172 | */ |
172 | */ |
173 | void |
173 | void |
174 | scr_end(void) |
174 | scr_end(void) |
175 | { |
175 | { |
176 | } |
176 | } |
177 | 177 | ||
178 | void |
178 | void |
179 | stop(char *why) |
179 | stop(char *why) |
180 | { |
180 | { |
181 | 181 | ||
182 | if (isset) |
182 | if (isset) |
183 | scr_end(); |
183 | scr_end(); |
184 | errx(1, "aborting: %s", why); |
184 | errx(1, "aborting: %s", why); |
185 | } |
185 | } |
186 | 186 | ||
187 | 187 | ||
188 | /* |
188 | /* |
189 | * Update the screen. |
189 | * Update the screen. |
190 | */ |
190 | */ |
191 | void |
191 | void |
192 | scr_update(void) |
192 | scr_update(void) |
193 | { |
193 | { |
194 | cell *bp, *sp; |
194 | cell *bp, *sp; |
195 | cell so, cur_so = 0; |
195 | cell so, cur_so = 0; |
196 | int i, ccol, j; |
196 | int i, ccol, j; |
197 | static const struct shape *lastshape; |
197 | static const struct shape *lastshape; |
198 | 198 | ||
199 | /* always leave cursor after last displayed point */ |
199 | /* always leave cursor after last displayed point */ |
200 | curscreen[D_LAST * B_COLS - 1] = -1; |
200 | curscreen[D_LAST * B_COLS - 1] = -1; |
201 | 201 | ||
202 | if (score != curscore) { |
202 | if (score != curscore) { |
203 | moveto(0, 0); |
203 | moveto(0, 0); |
204 | printf("Score: %d", score); |
204 | printf("Score: %d", score); |
205 | curscore = score; |
205 | curscore = score; |
206 | } |
206 | } |
207 | 207 | ||
208 | /* draw preview of next pattern */ |
208 | /* draw preview of next pattern */ |
209 | if (showpreview && (nextshape != lastshape)) { |
209 | if (showpreview && (nextshape != lastshape)) { |
210 | int i; |
210 | int i; |
211 | static int r=5, c=2; |
211 | static int r=5, c=2; |
212 | int tr, tc, t; |
212 | int tr, tc, t; |
213 | 213 | ||
214 | lastshape = nextshape; |
214 | lastshape = nextshape; |
215 | 215 | ||
216 | /* clean */ |
216 | /* clean */ |
217 | resume_normal(); |
217 | resume_normal(); |
218 | moveto(r-1, c-1); putstr(" "); |
218 | moveto(r-1, c-1); putstr(" "); |
219 | moveto(r, c-1); putstr(" "); |
219 | moveto(r, c-1); putstr(" "); |
220 | moveto(r+1, c-1); putstr(" "); |
220 | moveto(r+1, c-1); putstr(" "); |
221 | moveto(r+2, c-1); putstr(" "); |
221 | moveto(r+2, c-1); putstr(" "); |
222 | 222 | ||
223 | moveto(r-3, c-2); |
223 | moveto(r-3, c-2); |
224 | putstr("Next shape:"); |
224 | putstr("Next shape:"); |
225 | 225 | ||
226 | /* draw */ |
226 | /* draw */ |
227 | start_standout(); |
227 | start_standout(); |
228 | moveto(r, 2 * c); |
228 | moveto(r, 2 * c); |
229 | putstr(" "); |
229 | putstr(" "); |
230 | for (i = 0; i < 3; i++) { |
230 | for (i = 0; i < 3; i++) { |
231 | t = c + r * B_COLS; |
231 | t = c + r * B_COLS; |
232 | t += nextshape->off[i]; |
232 | t += nextshape->off[i]; |
233 | 233 | ||
234 | tr = t / B_COLS; |
234 | tr = t / B_COLS; |
235 | tc = t % B_COLS; |
235 | tc = t % B_COLS; |
236 | 236 | ||
237 | moveto(tr, 2*tc); |
237 | moveto(tr, 2*tc); |
238 | putstr(" "); |
238 | putstr(" "); |
239 | } |
239 | } |
240 | resume_normal(); |
240 | resume_normal(); |
241 | } |
241 | } |
242 | 242 | ||
243 | bp = &board[D_FIRST * B_COLS]; |
243 | bp = &board[D_FIRST * B_COLS]; |
244 | sp = &curscreen[D_FIRST * B_COLS]; |
244 | sp = &curscreen[D_FIRST * B_COLS]; |
245 | for (j = D_FIRST; j < D_LAST; j++) { |
245 | for (j = D_FIRST; j < D_LAST; j++) { |
246 | ccol = -1; |
246 | ccol = -1; |
247 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
247 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
248 | if (*sp == (so = *bp)) |
248 | if (*sp == (so = *bp)) |
249 | continue; |
249 | continue; |
250 | *sp = so; |
250 | *sp = so; |
251 | if (i != ccol) { |
251 | if (i != ccol) { |
252 | if (cur_so) { |
252 | if (cur_so) { |
253 | resume_normal(); |
253 | resume_normal(); |
254 | cur_so = 0; |
254 | cur_so = 0; |
255 | } |
255 | } |
256 | moveto(RTOD(j), CTOD(i)); |
256 | moveto(RTOD(j), CTOD(i)); |
257 | } |
257 | } |
258 | if (so != cur_so) { |
258 | if (so != cur_so) { |
259 | if (so) |
259 | if (so) |
260 | start_standout(); |
260 | start_standout(); |
261 | else |
261 | else |
262 | resume_normal(); |
262 | resume_normal(); |
263 | cur_so = so; |
263 | cur_so = so; |
264 | } |
264 | } |
265 | putstr(" "); |
265 | putstr(" "); |
266 | 266 | ||
267 | ccol = i + 1; |
267 | ccol = i + 1; |
268 | /* |
268 | /* |
269 | * Look ahead a bit, to avoid extra motion if |
269 | * Look ahead a bit, to avoid extra motion if |
270 | * we will be redrawing the cell after the next. |
270 | * we will be redrawing the cell after the next. |
271 | * Motion probably takes four or more characters, |
271 | * Motion probably takes four or more characters, |
272 | * so we save even if we rewrite two cells |
272 | * so we save even if we rewrite two cells |
273 | * `unnecessarily'. Skip it all, though, if |
273 | * `unnecessarily'. Skip it all, though, if |
274 | * the next cell is a different color. |
274 | * the next cell is a different color. |
275 | */ |
275 | */ |
276 | #define STOP (B_COLS - 3) |
276 | #define STOP (B_COLS - 3) |
277 | if (i > STOP || sp[1] != bp[1] || so != bp[1]) |
277 | if (i > STOP || sp[1] != bp[1] || so != bp[1]) |
278 | continue; |
278 | continue; |
279 | if (sp[2] != bp[2]) |
279 | if (sp[2] != bp[2]) |
280 | sp[1] = -1; |
280 | sp[1] = -1; |
281 | else if (i < STOP && so == bp[2] && sp[3] != bp[3]) { |
281 | else if (i < STOP && so == bp[2] && sp[3] != bp[3]) { |
282 | sp[2] = -1; |
282 | sp[2] = -1; |
283 | sp[1] = -1; |
283 | sp[1] = -1; |
284 | } |
284 | } |
285 | } |
285 | } |
286 | } |
286 | } |
287 | if (cur_so) |
287 | if (cur_so) |
288 | resume_normal(); |
288 | resume_normal(); |
289 | fflush(); |
289 | fflush(); |
290 | } |
290 | } |
291 | 291 | ||
292 | /* |
292 | /* |
293 | * Write a message (set!=0), or clear the same message (set==0). |
293 | * Write a message (set!=0), or clear the same message (set==0). |
294 | * (We need its length in case we have to overwrite with blanks.) |
294 | * (We need its length in case we have to overwrite with blanks.) |
295 | */ |
295 | */ |
296 | void |
296 | void |
297 | scr_msg(char *s, int set) |
297 | scr_msg(char *s, int set) |
298 | { |
298 | { |
299 | 299 | ||
300 | int l = strlen(s); |
300 | int l = strlen(s); |
301 | 301 | ||
302 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
302 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
303 | if (set) |
303 | if (set) |
304 | putstr(s); |
304 | putstr(s); |
305 | else |
305 | else |
306 | while (--l >= 0) |
306 | while (--l >= 0) |
307 | (void) putchar(' '); |
307 | (void) putchar(' '); |
308 | } |
308 | } |
309 | 309 | ||
310 | /** @} |
310 | /** @} |
311 | */ |
311 | */ |
312 | 312 | ||
313 | 313 |