1use std::collections::HashMap;
2
3pub type Pattern = Vec<Vec<u8>>;
4
5pub fn get_patterns() -> HashMap<String, Pattern> {
6 let mut patterns = HashMap::new();
7
8 patterns.insert(
10 "A".to_string(),
11 vec![
12 vec![0, 3, 3, 3, 3, 3, 0],
13 vec![3, 0, 0, 0, 0, 0, 3],
14 vec![3, 0, 0, 0, 0, 0, 3],
15 vec![3, 3, 3, 3, 3, 3, 3],
16 vec![3, 0, 0, 0, 0, 0, 3],
17 vec![3, 0, 0, 0, 0, 0, 3],
18 vec![3, 0, 0, 0, 0, 0, 3],
19 ],
20 );
21
22 patterns.insert(
23 "B".to_string(),
24 vec![
25 vec![3, 3, 3, 3, 3, 3, 0],
26 vec![3, 0, 0, 0, 0, 0, 3],
27 vec![3, 0, 0, 0, 0, 0, 3],
28 vec![3, 3, 3, 3, 3, 3, 0],
29 vec![3, 0, 0, 0, 0, 0, 3],
30 vec![3, 0, 0, 0, 0, 0, 3],
31 vec![3, 3, 3, 3, 3, 3, 0],
32 ],
33 );
34
35 patterns.insert(
36 "C".to_string(),
37 vec![
38 vec![0, 3, 3, 3, 3, 3, 0],
39 vec![3, 0, 0, 0, 0, 0, 3],
40 vec![3, 0, 0, 0, 0, 0, 0],
41 vec![3, 0, 0, 0, 0, 0, 0],
42 vec![3, 0, 0, 0, 0, 0, 0],
43 vec![3, 0, 0, 0, 0, 0, 3],
44 vec![0, 3, 3, 3, 3, 3, 0],
45 ],
46 );
47
48 patterns.insert(
49 "D".to_string(),
50 vec![
51 vec![3, 3, 3, 3, 3, 3, 0],
52 vec![3, 0, 0, 0, 0, 0, 3],
53 vec![3, 0, 0, 0, 0, 0, 3],
54 vec![3, 0, 0, 0, 0, 0, 3],
55 vec![3, 0, 0, 0, 0, 0, 3],
56 vec![3, 0, 0, 0, 0, 0, 3],
57 vec![3, 3, 3, 3, 3, 3, 0],
58 ],
59 );
60
61 patterns.insert(
62 "E".to_string(),
63 vec![
64 vec![3, 3, 3, 3, 3, 3, 3],
65 vec![3, 0, 0, 0, 0, 0, 0],
66 vec![3, 0, 0, 0, 0, 0, 0],
67 vec![3, 3, 3, 3, 3, 3, 0],
68 vec![3, 0, 0, 0, 0, 0, 0],
69 vec![3, 0, 0, 0, 0, 0, 0],
70 vec![3, 3, 3, 3, 3, 3, 3],
71 ],
72 );
73
74 patterns.insert(
75 "F".to_string(),
76 vec![
77 vec![3, 3, 3, 3, 3, 3, 3],
78 vec![3, 0, 0, 0, 0, 0, 0],
79 vec![3, 0, 0, 0, 0, 0, 0],
80 vec![3, 3, 3, 3, 3, 3, 0],
81 vec![3, 0, 0, 0, 0, 0, 0],
82 vec![3, 0, 0, 0, 0, 0, 0],
83 vec![3, 0, 0, 0, 0, 0, 0],
84 ],
85 );
86
87 patterns.insert(
88 "G".to_string(),
89 vec![
90 vec![0, 3, 3, 3, 3, 3, 0],
91 vec![3, 0, 0, 0, 0, 0, 3],
92 vec![3, 0, 0, 0, 0, 0, 0],
93 vec![3, 0, 3, 3, 3, 3, 3],
94 vec![3, 0, 0, 0, 0, 0, 3],
95 vec![3, 0, 0, 0, 0, 0, 3],
96 vec![0, 3, 3, 3, 3, 3, 0],
97 ],
98 );
99
100 patterns.insert(
101 "H".to_string(),
102 vec![
103 vec![3, 0, 0, 0, 0, 0, 3],
104 vec![3, 0, 0, 0, 0, 0, 3],
105 vec![3, 0, 0, 0, 0, 0, 3],
106 vec![3, 3, 3, 3, 3, 3, 3],
107 vec![3, 0, 0, 0, 0, 0, 3],
108 vec![3, 0, 0, 0, 0, 0, 3],
109 vec![3, 0, 0, 0, 0, 0, 3],
110 ],
111 );
112
113 patterns.insert(
114 "I".to_string(),
115 vec![
116 vec![3, 3, 3, 3, 3, 3, 3],
117 vec![0, 0, 0, 3, 0, 0, 0],
118 vec![0, 0, 0, 3, 0, 0, 0],
119 vec![0, 0, 0, 3, 0, 0, 0],
120 vec![0, 0, 0, 3, 0, 0, 0],
121 vec![0, 0, 0, 3, 0, 0, 0],
122 vec![3, 3, 3, 3, 3, 3, 3],
123 ],
124 );
125
126 patterns.insert(
127 "J".to_string(),
128 vec![
129 vec![3, 3, 3, 3, 3, 3, 3],
130 vec![0, 0, 0, 0, 0, 3, 0],
131 vec![0, 0, 0, 0, 0, 3, 0],
132 vec![0, 0, 0, 0, 0, 3, 0],
133 vec![0, 0, 0, 0, 0, 3, 0],
134 vec![3, 0, 0, 0, 0, 3, 0],
135 vec![0, 3, 3, 3, 3, 0, 0],
136 ],
137 );
138
139 patterns.insert(
140 "K".to_string(),
141 vec![
142 vec![3, 0, 0, 0, 0, 3, 0],
143 vec![3, 0, 0, 0, 3, 0, 0],
144 vec![3, 0, 0, 3, 0, 0, 0],
145 vec![3, 3, 3, 0, 0, 0, 0],
146 vec![3, 0, 0, 3, 0, 0, 0],
147 vec![3, 0, 0, 0, 3, 0, 0],
148 vec![3, 0, 0, 0, 0, 3, 0],
149 ],
150 );
151
152 patterns.insert(
153 "L".to_string(),
154 vec![
155 vec![3, 0, 0, 0, 0, 0, 0],
156 vec![3, 0, 0, 0, 0, 0, 0],
157 vec![3, 0, 0, 0, 0, 0, 0],
158 vec![3, 0, 0, 0, 0, 0, 0],
159 vec![3, 0, 0, 0, 0, 0, 0],
160 vec![3, 0, 0, 0, 0, 0, 0],
161 vec![3, 3, 3, 3, 3, 3, 3],
162 ],
163 );
164
165 patterns.insert(
166 "M".to_string(),
167 vec![
168 vec![3, 0, 0, 0, 0, 0, 3],
169 vec![3, 3, 0, 0, 0, 3, 3],
170 vec![3, 0, 3, 0, 3, 0, 3],
171 vec![3, 0, 0, 3, 0, 0, 3],
172 vec![3, 0, 0, 0, 0, 0, 3],
173 vec![3, 0, 0, 0, 0, 0, 3],
174 vec![3, 0, 0, 0, 0, 0, 3],
175 ],
176 );
177
178 patterns.insert(
179 "N".to_string(),
180 vec![
181 vec![3, 0, 0, 0, 0, 0, 3],
182 vec![3, 3, 0, 0, 0, 0, 3],
183 vec![3, 0, 3, 0, 0, 0, 3],
184 vec![3, 0, 0, 3, 0, 0, 3],
185 vec![3, 0, 0, 0, 3, 0, 3],
186 vec![3, 0, 0, 0, 0, 3, 3],
187 vec![3, 0, 0, 0, 0, 0, 3],
188 ],
189 );
190
191 patterns.insert(
192 "O".to_string(),
193 vec![
194 vec![0, 3, 3, 3, 3, 3, 0],
195 vec![3, 0, 0, 0, 0, 0, 3],
196 vec![3, 0, 0, 0, 0, 0, 3],
197 vec![3, 0, 0, 0, 0, 0, 3],
198 vec![3, 0, 0, 0, 0, 0, 3],
199 vec![3, 0, 0, 0, 0, 0, 3],
200 vec![0, 3, 3, 3, 3, 3, 0],
201 ],
202 );
203
204 patterns.insert(
205 "P".to_string(),
206 vec![
207 vec![3, 3, 3, 3, 3, 3, 0],
208 vec![3, 0, 0, 0, 0, 0, 3],
209 vec![3, 0, 0, 0, 0, 0, 3],
210 vec![3, 3, 3, 3, 3, 3, 0],
211 vec![3, 0, 0, 0, 0, 0, 0],
212 vec![3, 0, 0, 0, 0, 0, 0],
213 vec![3, 0, 0, 0, 0, 0, 0],
214 ],
215 );
216
217 patterns.insert(
218 "Q".to_string(),
219 vec![
220 vec![0, 3, 3, 3, 3, 3, 0],
221 vec![3, 0, 0, 0, 0, 0, 3],
222 vec![3, 0, 0, 0, 0, 0, 3],
223 vec![3, 0, 0, 0, 0, 0, 3],
224 vec![3, 0, 0, 0, 3, 0, 3],
225 vec![3, 0, 0, 0, 0, 3, 0],
226 vec![0, 3, 3, 3, 3, 0, 3],
227 ],
228 );
229
230 patterns.insert(
231 "R".to_string(),
232 vec![
233 vec![3, 3, 3, 3, 3, 3, 0],
234 vec![3, 0, 0, 0, 0, 0, 3],
235 vec![3, 0, 0, 0, 0, 0, 3],
236 vec![3, 3, 3, 3, 3, 3, 0],
237 vec![3, 0, 0, 3, 0, 0, 0],
238 vec![3, 0, 0, 0, 3, 0, 0],
239 vec![3, 0, 0, 0, 0, 3, 0],
240 ],
241 );
242
243 patterns.insert(
244 "S".to_string(),
245 vec![
246 vec![0, 3, 3, 3, 3, 3, 3],
247 vec![3, 0, 0, 0, 0, 0, 0],
248 vec![3, 0, 0, 0, 0, 0, 0],
249 vec![0, 3, 3, 3, 3, 3, 0],
250 vec![0, 0, 0, 0, 0, 0, 3],
251 vec![0, 0, 0, 0, 0, 0, 3],
252 vec![3, 3, 3, 3, 3, 3, 0],
253 ],
254 );
255
256 patterns.insert(
257 "T".to_string(),
258 vec![
259 vec![3, 3, 3, 3, 3, 3, 3],
260 vec![0, 0, 0, 3, 0, 0, 0],
261 vec![0, 0, 0, 3, 0, 0, 0],
262 vec![0, 0, 0, 3, 0, 0, 0],
263 vec![0, 0, 0, 3, 0, 0, 0],
264 vec![0, 0, 0, 3, 0, 0, 0],
265 vec![0, 0, 0, 3, 0, 0, 0],
266 ],
267 );
268
269 patterns.insert(
270 "U".to_string(),
271 vec![
272 vec![3, 0, 0, 0, 0, 0, 3],
273 vec![3, 0, 0, 0, 0, 0, 3],
274 vec![3, 0, 0, 0, 0, 0, 3],
275 vec![3, 0, 0, 0, 0, 0, 3],
276 vec![3, 0, 0, 0, 0, 0, 3],
277 vec![3, 0, 0, 0, 0, 0, 3],
278 vec![0, 3, 3, 3, 3, 3, 0],
279 ],
280 );
281
282 patterns.insert(
283 "V".to_string(),
284 vec![
285 vec![3, 0, 0, 0, 0, 0, 3],
286 vec![3, 0, 0, 0, 0, 0, 3],
287 vec![3, 0, 0, 0, 0, 0, 3],
288 vec![3, 0, 0, 0, 0, 0, 3],
289 vec![3, 0, 0, 0, 0, 0, 3],
290 vec![0, 3, 0, 0, 0, 3, 0],
291 vec![0, 0, 3, 3, 3, 0, 0],
292 ],
293 );
294
295 patterns.insert(
296 "W".to_string(),
297 vec![
298 vec![3, 0, 0, 0, 0, 0, 3],
299 vec![3, 0, 0, 0, 0, 0, 3],
300 vec![3, 0, 0, 0, 0, 0, 3],
301 vec![3, 0, 0, 3, 0, 0, 3],
302 vec![3, 0, 3, 0, 3, 0, 3],
303 vec![3, 3, 0, 0, 0, 3, 3],
304 vec![3, 0, 0, 0, 0, 0, 3],
305 ],
306 );
307
308 patterns.insert(
309 "X".to_string(),
310 vec![
311 vec![3, 0, 0, 0, 0, 0, 3],
312 vec![0, 3, 0, 0, 0, 3, 0],
313 vec![0, 0, 3, 0, 3, 0, 0],
314 vec![0, 0, 0, 3, 0, 0, 0],
315 vec![0, 0, 3, 0, 3, 0, 0],
316 vec![0, 3, 0, 0, 0, 3, 0],
317 vec![3, 0, 0, 0, 0, 0, 3],
318 ],
319 );
320
321 patterns.insert(
322 "Y".to_string(),
323 vec![
324 vec![3, 0, 0, 0, 0, 0, 3],
325 vec![0, 3, 0, 0, 0, 3, 0],
326 vec![0, 0, 3, 0, 3, 0, 0],
327 vec![0, 0, 0, 3, 0, 0, 0],
328 vec![0, 0, 0, 3, 0, 0, 0],
329 vec![0, 0, 0, 3, 0, 0, 0],
330 vec![0, 0, 0, 3, 0, 0, 0],
331 ],
332 );
333
334 patterns.insert(
335 "Z".to_string(),
336 vec![
337 vec![3, 3, 3, 3, 3, 3, 3],
338 vec![0, 0, 0, 0, 0, 3, 0],
339 vec![0, 0, 0, 0, 3, 0, 0],
340 vec![0, 0, 0, 3, 0, 0, 0],
341 vec![0, 0, 3, 0, 0, 0, 0],
342 vec![0, 3, 0, 0, 0, 0, 0],
343 vec![3, 3, 3, 3, 3, 3, 3],
344 ],
345 );
346
347 patterns.insert(
348 " ".to_string(),
349 vec![
350 vec![0, 0, 0, 0, 0, 0, 0],
351 vec![0, 0, 0, 0, 0, 0, 0],
352 vec![0, 0, 0, 0, 0, 0, 0],
353 vec![0, 0, 0, 0, 0, 0, 0],
354 vec![0, 0, 0, 0, 0, 0, 0],
355 vec![0, 0, 0, 0, 0, 0, 0],
356 vec![0, 0, 0, 0, 0, 0, 0],
357 ],
358 );
359
360 patterns.insert(
362 "heart".to_string(),
363 vec![
364 vec![0, 4, 4, 0, 4, 4, 0],
365 vec![4, 2, 2, 4, 2, 2, 4],
366 vec![4, 2, 2, 2, 2, 2, 4],
367 vec![4, 2, 2, 2, 2, 2, 4],
368 vec![0, 4, 2, 2, 2, 4, 0],
369 vec![0, 0, 4, 2, 4, 0, 0],
370 vec![0, 0, 0, 4, 0, 0, 0],
371 ],
372 );
373
374 patterns.insert(
375 "octocat".to_string(),
376 vec![
377 vec![0, 0, 0, 4, 0, 0, 0, 4, 0],
378 vec![0, 0, 4, 4, 4, 4, 4, 4, 4],
379 vec![0, 0, 4, 1, 3, 3, 3, 1, 4],
380 vec![0, 0, 4, 3, 3, 3, 3, 3, 4],
381 vec![4, 0, 3, 4, 3, 3, 3, 4, 3],
382 vec![0, 4, 0, 0, 4, 4, 4, 0, 0],
383 vec![0, 0, 4, 4, 4, 4, 4, 4, 4],
384 ],
385 );
386
387 patterns
388}
389
390pub fn text_to_grid(text: &str) -> Result<Vec<Vec<u8>>, String> {
391 if text.is_empty() {
392 return Ok(Vec::new());
393 }
394
395 let patterns = get_patterns();
396 let mut grid: Vec<Vec<u8>> = Vec::new();
397
398 for ch in text.to_uppercase().chars() {
399 if !ch.is_ascii_alphabetic() && ch != ' ' {
400 return Err(format!(
401 "Text mode only supports A-Z and space. Use --shape for predefined shapes. Got: '{}'",
402 ch
403 ));
404 }
405
406 let pattern = patterns
407 .get(&ch.to_string())
408 .or_else(|| patterns.get(" "))
409 .ok_or_else(|| format!("Pattern not found for '{}'", ch))?;
410
411 if grid.is_empty() {
412 grid = pattern.clone();
413 } else {
414 for (i, row) in pattern.iter().enumerate() {
415 grid[i].extend(row);
416 }
417 }
418
419 for row in grid.iter_mut() {
421 row.push(0);
422 }
423 }
424
425 Ok(grid)
426}
427
428pub fn shape_to_grid(shapes: &[String]) -> Result<Vec<Vec<u8>>, String> {
429 if shapes.is_empty() {
430 return Ok(Vec::new());
431 }
432
433 let patterns = get_patterns();
434 let mut grid: Vec<Vec<u8>> = Vec::new();
435
436 for shape_name in shapes {
437 let pattern = patterns
438 .get(shape_name)
439 .ok_or_else(|| format!("Unknown shape: {}", shape_name))?;
440
441 if grid.is_empty() {
442 grid = pattern.clone();
443 } else {
444 for row in grid.iter_mut() {
446 row.push(0);
447 }
448
449 for (i, row) in pattern.iter().enumerate() {
451 grid[i].extend(row);
452 }
453 }
454 }
455
456 Ok(grid)
457}