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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 <vfs/vfs.h> |
53 | #include <vfs/vfs.h> |
54 | #include <async.h> |
54 | #include <async.h> |
55 | #include "screen.h" |
55 | #include "screen.h" |
56 | #include "tetris.h" |
56 | #include "tetris.h" |
57 | #include <io/console.h> |
57 | #include <io/console.h> |
58 | 58 | ||
59 | #define STOP (B_COLS - 3) |
59 | #define STOP (B_COLS - 3) |
60 | 60 | ||
61 | static cell curscreen[B_SIZE]; /* non-zero => standout (or otherwise marked) */ |
61 | static cell curscreen[B_SIZE]; /* non-zero => 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 | static const struct shape *lastshape; |
65 | static const struct shape *lastshape; |
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 | static inline void putstr(char *s) |
72 | static inline void putstr(char *s) |
73 | { |
73 | { |
74 | while (*s) |
74 | while (*s) |
75 | putchar(*(s++)); |
75 | putchar(*(s++)); |
76 | } |
76 | } |
77 | 77 | ||
78 | static void start_standout(uint32_t color) |
78 | static void start_standout(uint32_t color) |
79 | { |
79 | { |
80 | fflush(stdout); |
80 | fflush(stdout); |
81 | console_set_rgb_color(fphone(stdout), 0xf0f0f0, color); |
81 | console_set_rgb_color(fphone(stdout), 0xf0f0f0, color); |
82 | } |
82 | } |
83 | 83 | ||
84 | static void resume_normal(void) |
84 | static void resume_normal(void) |
85 | { |
85 | { |
86 | fflush(stdout); |
86 | fflush(stdout); |
87 | console_set_rgb_color(fphone(stdout), 0, 0xf0f0f0); |
87 | console_set_rgb_color(fphone(stdout), 0, 0xf0f0f0); |
88 | } |
88 | } |
89 | 89 | ||
90 | void clear_screen(void) |
90 | void clear_screen(void) |
91 | { |
91 | { |
92 | console_clear(fphone(stdout)); |
92 | console_clear(fphone(stdout)); |
93 | moveto(0, 0); |
93 | moveto(0, 0); |
94 | } |
94 | } |
95 | 95 | ||
96 | /* |
96 | /* |
97 | * Clear the screen, forgetting the current contents in the process. |
97 | * Clear the screen, forgetting the current contents in the process. |
98 | */ |
98 | */ |
99 | void scr_clear(void) |
99 | void scr_clear(void) |
100 | { |
100 | { |
101 | resume_normal(); |
101 | resume_normal(); |
102 | console_clear(fphone(stdout)); |
102 | console_clear(fphone(stdout)); |
103 | curscore = -1; |
103 | curscore = -1; |
104 | memset(curscreen, 0, sizeof(curscreen)); |
104 | memset(curscreen, 0, sizeof(curscreen)); |
105 | } |
105 | } |
106 | 106 | ||
107 | /* |
107 | /* |
108 | * Set up screen |
108 | * Set up screen |
109 | */ |
109 | */ |
110 | void scr_init(void) |
110 | void scr_init(void) |
111 | { |
111 | { |
112 | console_cursor_visibility(fphone(stdout), 0); |
112 | console_cursor_visibility(fphone(stdout), 0); |
113 | resume_normal(); |
113 | resume_normal(); |
114 | scr_clear(); |
114 | scr_clear(); |
115 | } |
115 | } |
116 | 116 | ||
117 | void moveto(int r, int c) |
117 | void moveto(int r, int c) |
118 | { |
118 | { |
119 | fflush(stdout); |
119 | fflush(stdout); |
120 | console_goto(fphone(stdout), c, r); |
120 | console_goto(fphone(stdout), c, r); |
121 | } |
121 | } |
122 | 122 | ||
123 | winsize_t winsize; |
123 | winsize_t winsize; |
124 | 124 | ||
125 | static int get_display_size(winsize_t *ws) |
125 | static int get_display_size(winsize_t *ws) |
126 | { |
126 | { |
127 | return console_get_size(fphone(stdout), &ws->ws_col, &ws->ws_row); |
127 | return console_get_size(fphone(stdout), &ws->ws_col, &ws->ws_row); |
128 | } |
128 | } |
129 | 129 | ||
130 | /* |
130 | /* |
131 | * Set up screen mode. |
131 | * Set up screen mode. |
132 | */ |
132 | */ |
133 | void scr_set(void) |
133 | void scr_set(void) |
134 | { |
134 | { |
135 | winsize_t ws; |
135 | winsize_t ws; |
136 | 136 | ||
137 | Rows = 0; |
137 | Rows = 0; |
138 | Cols = 0; |
138 | Cols = 0; |
139 | 139 | ||
140 | if (get_display_size(&ws) == 0) { |
140 | if (get_display_size(&ws) == 0) { |
141 | Rows = ws.ws_row; |
141 | Rows = ws.ws_row; |
142 | Cols = ws.ws_col; |
142 | Cols = ws.ws_col; |
143 | } |
143 | } |
144 | 144 | ||
145 | if ((Rows < MINROWS) || (Cols < MINCOLS)) { |
145 | if ((Rows < MINROWS) || (Cols < MINCOLS)) { |
146 | char smallscr[55]; |
146 | char smallscr[55]; |
147 | 147 | ||
148 | snprintf(smallscr, sizeof(smallscr), |
148 | snprintf(smallscr, sizeof(smallscr), |
149 | "the screen is too small (must be at least %dx%d)", |
149 | "the screen is too small (must be at least %dx%d)", |
150 | MINROWS, MINCOLS); |
150 | MINROWS, MINCOLS); |
151 | stop(smallscr); |
151 | stop(smallscr); |
152 | } |
152 | } |
153 | isset = 1; |
153 | isset = 1; |
154 | 154 | ||
155 | scr_clear(); |
155 | scr_clear(); |
156 | } |
156 | } |
157 | 157 | ||
158 | /* |
158 | /* |
159 | * End screen mode. |
159 | * End screen mode. |
160 | */ |
160 | */ |
161 | void scr_end(void) |
161 | void scr_end(void) |
162 | { |
162 | { |
163 | console_cursor_visibility(fphone(stdout), 1); |
163 | console_cursor_visibility(fphone(stdout), 1); |
164 | } |
164 | } |
165 | 165 | ||
166 | void stop(char *why) |
166 | void stop(char *why) |
167 | { |
167 | { |
168 | if (isset) |
168 | if (isset) |
169 | scr_end(); |
169 | scr_end(); |
170 | 170 | ||
171 | errx(1, "aborting: %s", why); |
171 | errx(1, "aborting: %s", why); |
172 | } |
172 | } |
173 | 173 | ||
174 | /* |
174 | /* |
175 | * Update the screen. |
175 | * Update the screen. |
176 | */ |
176 | */ |
177 | void scr_update(void) |
177 | void scr_update(void) |
178 | { |
178 | { |
179 | cell *bp; |
179 | cell *bp; |
180 | cell *sp; |
180 | cell *sp; |
181 | cell so; |
181 | cell so; |
182 | cell cur_so = 0; |
182 | cell cur_so = 0; |
183 | int i; |
183 | int i; |
184 | int j; |
184 | int j; |
185 | int ccol; |
185 | int ccol; |
186 | 186 | ||
187 | /* Always leave cursor after last displayed point */ |
187 | /* Always leave cursor after last displayed point */ |
188 | curscreen[D_LAST * B_COLS - 1] = -1; |
188 | curscreen[D_LAST * B_COLS - 1] = -1; |
189 | 189 | ||
190 | if (score != curscore) { |
190 | if (score != curscore) { |
191 | moveto(0, 0); |
191 | moveto(0, 0); |
192 | printf("Score: %d", score); |
192 | printf("Score: %d", score); |
193 | curscore = score; |
193 | curscore = score; |
194 | } |
194 | } |
195 | 195 | ||
196 | /* Draw preview of next pattern */ |
196 | /* Draw preview of next pattern */ |
197 | if ((showpreview) && (nextshape != lastshape)) { |
197 | if ((showpreview) && (nextshape != lastshape)) { |
198 | int i; |
198 | int i; |
199 | static int r = 5, c = 2; |
199 | static int r = 5, c = 2; |
200 | int tr, tc, t; |
200 | int tr, tc, t; |
201 | 201 | ||
202 | lastshape = nextshape; |
202 | lastshape = nextshape; |
203 | 203 | ||
204 | /* Clean */ |
204 | /* Clean */ |
205 | resume_normal(); |
205 | resume_normal(); |
206 | moveto(r - 1, c - 1); |
206 | moveto(r - 1, c - 1); |
207 | putstr(" "); |
207 | putstr(" "); |
208 | moveto(r, c - 1); |
208 | moveto(r, c - 1); |
209 | putstr(" "); |
209 | putstr(" "); |
210 | moveto(r + 1, c - 1); |
210 | moveto(r + 1, c - 1); |
211 | putstr(" "); |
211 | putstr(" "); |
212 | moveto(r + 2, c - 1); |
212 | moveto(r + 2, c - 1); |
213 | putstr(" "); |
213 | putstr(" "); |
214 | 214 | ||
215 | moveto(r - 3, c - 2); |
215 | moveto(r - 3, c - 2); |
216 | putstr("Next shape:"); |
216 | putstr("Next shape:"); |
217 | 217 | ||
218 | /* Draw */ |
218 | /* Draw */ |
219 | start_standout(nextshape->color); |
219 | start_standout(nextshape->color); |
220 | moveto(r, 2 * c); |
220 | moveto(r, 2 * c); |
221 | putstr(" "); |
221 | putstr(" "); |
222 | for (i = 0; i < 3; i++) { |
222 | for (i = 0; i < 3; i++) { |
223 | t = c + r * B_COLS; |
223 | t = c + r * B_COLS; |
224 | t += nextshape->off[i]; |
224 | t += nextshape->off[i]; |
225 | 225 | ||
226 | tr = t / B_COLS; |
226 | tr = t / B_COLS; |
227 | tc = t % B_COLS; |
227 | tc = t % B_COLS; |
228 | 228 | ||
229 | moveto(tr, 2*tc); |
229 | moveto(tr, 2*tc); |
230 | putstr(" "); |
230 | putstr(" "); |
231 | } |
231 | } |
232 | resume_normal(); |
232 | resume_normal(); |
233 | } |
233 | } |
234 | 234 | ||
235 | bp = &board[D_FIRST * B_COLS]; |
235 | bp = &board[D_FIRST * B_COLS]; |
236 | sp = &curscreen[D_FIRST * B_COLS]; |
236 | sp = &curscreen[D_FIRST * B_COLS]; |
237 | for (j = D_FIRST; j < D_LAST; j++) { |
237 | for (j = D_FIRST; j < D_LAST; j++) { |
238 | ccol = -1; |
238 | ccol = -1; |
239 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
239 | for (i = 0; i < B_COLS; bp++, sp++, i++) { |
240 | if (*sp == (so = *bp)) |
240 | if (*sp == (so = *bp)) |
241 | continue; |
241 | continue; |
242 | 242 | ||
243 | *sp = so; |
243 | *sp = so; |
244 | if (i != ccol) { |
244 | if (i != ccol) { |
245 | if (cur_so) { |
245 | if (cur_so) { |
246 | resume_normal(); |
246 | resume_normal(); |
247 | cur_so = 0; |
247 | cur_so = 0; |
248 | } |
248 | } |
249 | moveto(RTOD(j), CTOD(i)); |
249 | moveto(RTOD(j), CTOD(i)); |
250 | } |
250 | } |
251 | 251 | ||
252 | if (so != cur_so) { |
252 | if (so != cur_so) { |
253 | if (so) |
253 | if (so) |
254 | start_standout(so); |
254 | start_standout(so); |
255 | else |
255 | else |
256 | resume_normal(); |
256 | resume_normal(); |
257 | cur_so = so; |
257 | cur_so = so; |
258 | } |
258 | } |
259 | putstr(" "); |
259 | putstr(" "); |
260 | 260 | ||
261 | ccol = i + 1; |
261 | ccol = i + 1; |
262 | /* |
262 | /* |
263 | * Look ahead a bit, to avoid extra motion if |
263 | * Look ahead a bit, to avoid extra motion if |
264 | * we will be redrawing the cell after the next. |
264 | * we will be redrawing the cell after the next. |
265 | * Motion probably takes four or more characters, |
265 | * Motion probably takes four or more characters, |
266 | * so we save even if we rewrite two cells |
266 | * so we save even if we rewrite two cells |
267 | * `unnecessarily'. Skip it all, though, if |
267 | * `unnecessarily'. Skip it all, though, if |
268 | * the next cell is a different color. |
268 | * the next cell is a different color. |
269 | */ |
269 | */ |
270 | 270 | ||
271 | if ((i > STOP) || (sp[1] != bp[1]) || (so != bp[1])) |
271 | if ((i > STOP) || (sp[1] != bp[1]) || (so != bp[1])) |
272 | continue; |
272 | continue; |
273 | 273 | ||
274 | if (sp[2] != bp[2]) |
274 | if (sp[2] != bp[2]) |
275 | sp[1] = -1; |
275 | sp[1] = -1; |
276 | else if ((i < STOP) && (so == bp[2]) && (sp[3] != bp[3])) { |
276 | else if ((i < STOP) && (so == bp[2]) && (sp[3] != bp[3])) { |
277 | sp[2] = -1; |
277 | sp[2] = -1; |
278 | sp[1] = -1; |
278 | sp[1] = -1; |
279 | } |
279 | } |
280 | } |
280 | } |
281 | } |
281 | } |
282 | 282 | ||
283 | if (cur_so) |
283 | if (cur_so) |
284 | resume_normal(); |
284 | resume_normal(); |
285 | 285 | ||
286 | fflush(stdout); |
286 | fflush(stdout); |
287 | } |
287 | } |
288 | 288 | ||
289 | /* |
289 | /* |
290 | * Write a message (set != 0), or clear the same message (set == 0). |
290 | * 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.) |
291 | * (We need its length in case we have to overwrite with blanks.) |
292 | */ |
292 | */ |
293 | void scr_msg(char *s, int set) |
293 | void scr_msg(char *s, int set) |
294 | { |
294 | { |
295 | int l = str_size(s); |
295 | int l = str_size(s); |
296 | 296 | ||
297 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
297 | moveto(Rows - 2, ((Cols - l) >> 1) - 1); |
298 | 298 | ||
299 | if (set) |
299 | if (set) |
300 | putstr(s); |
300 | putstr(s); |
301 | else |
301 | else |
302 | while (--l >= 0) |
302 | while (--l >= 0) |
303 | (void) putchar(' '); |
303 | (void) putchar(' '); |
304 | } |
304 | } |
305 | 305 | ||
306 | /** @} |
306 | /** @} |
307 | */ |
307 | */ |
308 | 308 |