Simple single-color 8x8x8 LED Cube with AVRs
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  1. /*
  2. * cubeWorker.java
  3. *
  4. * Copyright 2011 Thomas Buck <xythobuz@me.com>
  5. * Copyright 2011 Max Nuding <max.nuding@gmail.com>
  6. * Copyright 2011 Felix Bäder <baeder.felix@gmail.com>
  7. *
  8. * This file is part of LED-Cube.
  9. *
  10. * LED-Cube is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU General Public License as published by
  12. * the Free Software Foundation, either version 3 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * LED-Cube is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License
  21. * along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
  22. */
  23. /*
  24. * This class handles one animation file. This file can contain
  25. * many animations, but has to be only 1Mbit in size (128*1024 Byte).
  26. */
  27. import java.util.ArrayList;
  28. import java.util.List;
  29. import java.util.StringTokenizer;
  30. import java.util.Collections;
  31. /**
  32. * This class holds all Data of the Application. Additionally it performs the
  33. * transmission of animation data to/from the cube and saves/loads animations
  34. * in/from a file.
  35. *
  36. * @author Thomas Buck
  37. * @author Felix Bäder
  38. * @author Max Nuding
  39. * @version 1.0
  40. */
  41. public class cubeWorker {
  42. private final int framesRemaining = 2016; // (128 * 1024) / 65 = 2016,...
  43. private boolean changedState = false;
  44. private Frame parentFrame;
  45. private Animation[] animations = new Animation[1];
  46. /**
  47. * Creates a worker with one animation, containing an empty frame.
  48. */
  49. public cubeWorker(Frame parent) {
  50. animations[0] = new Animation();
  51. parentFrame = parent;
  52. }
  53. public cubeWorker(Animation[] anims, Frame parent) {
  54. animations = anims;
  55. parentFrame = parent;
  56. }
  57. /**
  58. * Returns number of frames in this cubeWorker.
  59. *
  60. * @return number of frames.
  61. */
  62. public int completeNumOfFrames() {
  63. int c = 0;
  64. for (int i = 0; i < size(); i++) {
  65. c += getAnimation(i).size();
  66. }
  67. return c;
  68. }
  69. // --------------------
  70. // Misc. Methods
  71. // --------------------
  72. /**
  73. * Get the number of animations in this worker.
  74. *
  75. * @return number of animations
  76. */
  77. public int size() {
  78. return animations.length;
  79. }
  80. /**
  81. * Get the number of frames you can add until the Cubes memory is full.
  82. *
  83. * @return number of frames remaining
  84. */
  85. public int memoryRemaining() {
  86. return framesRemaining - completeNumOfFrames();
  87. }
  88. /**
  89. * Add an animation. It has an initial empty frame
  90. *
  91. * @return Index of new animation, or -1 if not enough space remaining.
  92. */
  93. public int addAnimation() {
  94. changedState = true;
  95. if (memoryRemaining() <= 0) {
  96. return -1;
  97. } else {
  98. extendArray();
  99. animations[animations.length - 1] = new Animation();
  100. return animations.length - 1;
  101. }
  102. }
  103. /**
  104. * Remove an animation.
  105. *
  106. * @param i the animation you want to delete
  107. */
  108. public void removeAnimation(int i) {
  109. changedState = true;
  110. shiftOver(i);
  111. shrinkArray();
  112. }
  113. /**
  114. * Move an animation up.
  115. * @param i the animation you want to move
  116. */
  117. public void moveAnimationUp(int i) {
  118. if (i > 0) {
  119. Animation tmp = animations[i];
  120. animations[i] = animations[i - 1];
  121. animations[i - 1] = tmp;
  122. }
  123. }
  124. /**
  125. * Move an animation down.
  126. * @param i the animation you want to move
  127. */
  128. public void moveAnimationDown(int i) {
  129. if (i < (animations.length - 1)) {
  130. Animation tmp = animations[i];
  131. animations[i] = animations[i + 1];
  132. animations[i + 1] = tmp;
  133. }
  134. }
  135. public Animation getAnimation(int i) {
  136. if (i < animations.length) {
  137. return animations[i];
  138. } else {
  139. return null;
  140. }
  141. }
  142. public void setAnimation(Animation a, int i) {
  143. changedState = true;
  144. if (i < animations.length) {
  145. animations[i] = a;
  146. }
  147. }
  148. /**
  149. * Loads an animation file into this worker.
  150. *
  151. * @param path Path of file to load
  152. * @return 0 on success, -1 on error.
  153. */
  154. public int loadState(String path) {
  155. changedState = false;
  156. try {
  157. animations = AnimationUtility.readFile(path);
  158. } catch (Exception e) {
  159. System.out.println("Did not load!");
  160. e.printStackTrace(System.out);
  161. return -1;
  162. }
  163. int size = 0;
  164. for (int i = 0; i < animations.length; i++) {
  165. size += animations[i].size();
  166. }
  167. if (size > framesRemaining) {
  168. return -1;
  169. }
  170. return 0;
  171. }
  172. /**
  173. * Save the state of this object into a file.
  174. *
  175. * @param path Path to save file in
  176. * @return 0 on success, -1 on error
  177. */
  178. public int saveState(String path) {
  179. changedState = false;
  180. AnimationUtility.writeFile(path, animations);
  181. if (AnimationUtility.getLastError() != null) {
  182. System.out.println(AnimationUtility.getLastError());
  183. return -1;
  184. }
  185. return 0;
  186. }
  187. /**
  188. * Check if something changed after loading/saving.
  189. *
  190. * @return TRUE if something changed, FALSE otherwise
  191. */
  192. public boolean changedStateSinceSave() {
  193. return changedState;
  194. }
  195. /**
  196. * Get the array of animations in this worker.
  197. * @return animation array
  198. */
  199. public Animation[] getAnimationArray() {
  200. return animations;
  201. }
  202. /**
  203. * Send all animations to the cube.
  204. *
  205. * @param port Name of serial port to use
  206. * @return 0 on success, -1 on error
  207. */
  208. public int cubeSendState(String port) {
  209. int a, f;
  210. short[] d;
  211. if (HelperUtility.openPort(port) == false) {
  212. error("Could not open Port!");
  213. return -1;
  214. }
  215. // Send command
  216. d = new short[1];
  217. d[0] = 's';
  218. if (HelperUtility.writeData(d, 1) == false) {
  219. error("Could not write to port!");
  220. HelperUtility.closePort();
  221. return -1;
  222. }
  223. // Recieve ack
  224. d = HelperUtility.readData(1);
  225. if (d.length == 0) {
  226. error("Could not read from port!");
  227. HelperUtility.closePort();
  228. return -1;
  229. }
  230. if (d[0] != 0x42) {
  231. error("Cube not OK!");
  232. HelperUtility.closePort();
  233. return -1;
  234. }
  235. System.out.println("Command sent!");
  236. // Send animation count
  237. d = new short[1];
  238. if (animations.length >= 255) {
  239. error("Too many animations");
  240. return -1;
  241. }
  242. d[0] = (short)animations.length;
  243. if (HelperUtility.writeData(d, 1) == false) {
  244. error("Could not write to port!");
  245. HelperUtility.closePort();
  246. return -1;
  247. }
  248. // Recieve ack
  249. d = HelperUtility.readData(1);
  250. if (d.length == 0) {
  251. error("Could not read from port!");
  252. HelperUtility.closePort();
  253. return -1;
  254. }
  255. if (d[0] != 0x42) {
  256. error("Cube not OK!");
  257. HelperUtility.closePort();
  258. return -1;
  259. }
  260. System.out.println("Animation count sent (" + animations.length + ")!");
  261. for (a = 0; a < animations.length; a++) {
  262. // Send frame count
  263. d = new short[1];
  264. if (animations[a].size() >= 255) {
  265. error("Too many frames!");
  266. HelperUtility.closePort();
  267. return -1;
  268. }
  269. d[0] = (short)animations[a].size();
  270. if (HelperUtility.writeData(d, 1) == false) {
  271. error("Could not write to port!");
  272. HelperUtility.closePort();
  273. return -1;
  274. }
  275. // Recieve ack
  276. d = HelperUtility.readData(1);
  277. if (d.length == 0) {
  278. error("Could not read from port!");
  279. HelperUtility.closePort();
  280. return -1;
  281. }
  282. if (d[0] != 0x42) {
  283. error("Cube not OK!");
  284. HelperUtility.closePort();
  285. return -1;
  286. }
  287. System.out.println("Frame count sent (" + animations[a].size() + ")!");
  288. for (f = 0; f < animations[a].size(); f++) {
  289. // Send duration
  290. d = new short[1];
  291. d[0] = animations[a].getFrame(f).getTime();
  292. if (HelperUtility.writeData(d, 1) == false) {
  293. error("Could not write to port!");
  294. HelperUtility.closePort();
  295. return -1;
  296. }
  297. // Recieve ack
  298. d = HelperUtility.readData(1);
  299. if (d.length == 0) {
  300. error("Could not read from port!");
  301. HelperUtility.closePort();
  302. return -1;
  303. }
  304. if (d[0] != 0x42) {
  305. error("Cube not OK!");
  306. HelperUtility.closePort();
  307. return -1;
  308. }
  309. System.out.println("Duration sent (" + animations[a].getFrame(f).getTime() + ")!");
  310. // Send data
  311. d = animations[a].getFrame(f).getData();
  312. if (HelperUtility.writeData(d, 64) == false) {
  313. error("Could not write to port!");
  314. HelperUtility.closePort();
  315. return -1;
  316. }
  317. // Recieve ack
  318. d = HelperUtility.readData(1);
  319. if (d.length == 0) {
  320. error("Could not read from port!");
  321. HelperUtility.closePort();
  322. return -1;
  323. }
  324. if (d[0] != 0x42) {
  325. error("Cube not OK!");
  326. HelperUtility.closePort();
  327. return -1;
  328. }
  329. System.out.println("Data sent");
  330. }
  331. }
  332. // Send finish sequence
  333. d = new short[4];
  334. d[0] = 0x42;
  335. d[1] = 0x42;
  336. d[2] = 0x42;
  337. d[3] = 0x42;
  338. if (HelperUtility.writeData(d, 4) == false) {
  339. error("Could not write to port!");
  340. HelperUtility.closePort();
  341. return -1;
  342. }
  343. // Recieve ack
  344. d = HelperUtility.readData(1);
  345. if (d.length == 0) {
  346. error("Could not read from port!");
  347. HelperUtility.closePort();
  348. return -1;
  349. }
  350. if (d[0] != 0x42) {
  351. error("Cube not OK!");
  352. HelperUtility.closePort();
  353. return -1;
  354. }
  355. System.out.println("Uploaded animations!");
  356. return 0;
  357. }
  358. /**
  359. * Get all animations from the cube, place it in this object
  360. *
  361. * @param port Name of serial port to use
  362. * @return 0 on success, -1 on error
  363. */
  364. // We generate error messages in here
  365. public int cubeGetState(String port) {
  366. return -1;
  367. }
  368. /**
  369. * Try to speak with the cube.
  370. *
  371. * @return TRUE if cube responds
  372. * @param port Name of serial port
  373. */
  374. public boolean cubeProbeConnected(String port) {
  375. if (HelperUtility.openPort(port) == false) {
  376. error("Could not open Port!");
  377. return false;
  378. }
  379. short[] d = new short[1];
  380. d[0] = 0x42;
  381. if (HelperUtility.writeData(d, 1) == false) {
  382. error("Could not write to port!");
  383. HelperUtility.closePort();
  384. return false;
  385. }
  386. d = HelperUtility.readData(1);
  387. if (d.length == 0) {
  388. error("Could not read from port!");
  389. HelperUtility.closePort();
  390. return false;
  391. }
  392. HelperUtility.closePort();
  393. if (d[0] != 0x42) {
  394. error("Answer was not OK");
  395. return false;
  396. } else {
  397. System.out.println("Got probe response!");
  398. return true;
  399. }
  400. }
  401. private void error(String s) {
  402. System.out.println(s);
  403. parentFrame.errorMessage("Serial Error", s);
  404. }
  405. private void extendArray() {
  406. Animation newArray[] = new Animation[animations.length + 1];
  407. for (int i = 0; i < animations.length; i++) {
  408. newArray[i] = animations[i];
  409. }
  410. animations = newArray;
  411. }
  412. private void shrinkArray() {
  413. Animation newArray[] = new Animation[animations.length - 1];
  414. for (int i = 0; i < newArray.length; i++) {
  415. newArray[i] = animations[i];
  416. }
  417. animations = newArray;
  418. }
  419. private void shiftOver(int toForget) {
  420. for (int i = (toForget + 1); i < animations.length; i++) {
  421. animations[i - 1] = animations[i];
  422. }
  423. }
  424. }