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