1 | /* |
1 | /* |
2 | * CrossFire, A Multiplayer game |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
3 | * |
3 | * |
4 | * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
5 | * Copyright (C) 2001 Mark Wedel |
5 | * Copyright (©) 2001,2007 Mark Wedel |
6 | * Copyright (C) 1992 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
8 | * Crossfire TRT is free software; you can redistribute it and/or modify it |
9 | * it under the terms of the GNU General Public License as published by |
9 | * under the terms of the GNU General Public License as published by the Free |
10 | * the Free Software Foundation; either version 2 of the License, or |
10 | * Software Foundation; either version 2 of the License, or (at your option) |
11 | * (at your option) any later version. |
11 | * any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
13 | * This program is distributed in the hope that it will be useful, but |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
16 | * GNU General Public License for more details. |
16 | * for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
18 | * You should have received a copy of the GNU General Public License along |
19 | * along with this program; if not, write to the Free Software |
19 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
21 | * |
21 | * |
22 | * The author can be reached via e-mail to <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
23 | */ |
23 | */ |
24 | |
24 | |
25 | /** \file |
25 | /** \file |
26 | * Image related communication |
26 | * Image related communication |
27 | * |
27 | * |
… | |
… | |
198 | * caching images. |
198 | * caching images. |
199 | */ |
199 | */ |
200 | void |
200 | void |
201 | SendFaceCmd (char *buf, int len, client *ns) |
201 | SendFaceCmd (char *buf, int len, client *ns) |
202 | { |
202 | { |
203 | uint16 facenum = atoi (buf); |
203 | ns->send_image (atoi (buf)); |
204 | |
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205 | if (facenum != 0) |
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206 | esrv_send_face (ns, facenum, 1); |
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207 | } |
204 | } |
208 | |
205 | |
209 | // how lame |
206 | // how lame |
210 | static void print_facename (packet &sl, const facedata &d) |
207 | static void print_facename (packet &sl, const facedata &d) |
211 | { |
208 | { |
212 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
209 | for (int i = 0; i < CHKSUM_SIZE; ++i) |
213 | sl.printf ("%02x", d.chksum [i]); |
210 | sl.printf ("%02x", d.chksum [i]); |
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211 | } |
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212 | |
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213 | // gcfclient uses the server-provided checksum for comparison, but always |
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214 | // writes a broken checksum to its cache file, so we have to provide |
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215 | // gcfclient with the same broken (and useless) checksum just to have it |
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216 | // cache the image despite its bugs. |
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217 | static uint32 gcfclient_checksum (const facedata *d) |
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218 | { |
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219 | uint32 csum = 0; |
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220 | |
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221 | for (std::string::const_iterator i = d->data.begin (); |
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222 | i != d->data.end (); |
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223 | ++i) |
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224 | { |
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225 | csum = rotate_right (csum); |
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226 | csum += *(uint8 *)&*i; |
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227 | } |
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228 | |
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229 | return csum; |
214 | } |
230 | } |
215 | |
231 | |
216 | /** |
232 | /** |
217 | * Sends a face to a client if they are in pixmap mode |
233 | * Sends a face to a client if they are in pixmap mode |
218 | * nothing gets sent in bitmap mode. |
234 | * nothing gets sent in bitmap mode. |
… | |
… | |
220 | * this is needed for the askface, in which we really do want to send the |
236 | * this is needed for the askface, in which we really do want to send the |
221 | * face (and askface is the only place that should be setting it). Otherwise, |
237 | * face (and askface is the only place that should be setting it). Otherwise, |
222 | * we look at the facecache, and if set, send the image name. |
238 | * we look at the facecache, and if set, send the image name. |
223 | */ |
239 | */ |
224 | void |
240 | void |
225 | esrv_send_face (client *ns, short face_num, int nocache) |
241 | client::send_face (faceidx facenum) |
226 | { |
242 | { |
227 | if (face_num <= 0 || face_num >= faces.size ()) |
243 | // never send face 0. ever. it does not exist. |
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244 | if (!facenum) |
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245 | return; |
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246 | |
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247 | const facedata *d = face_data (facenum, faceset); |
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248 | |
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249 | if (!d) |
228 | { |
250 | { |
229 | LOG (llevError, "esrv_send_face (%d) out of bounds??\n", face_num); |
251 | LOG (llevError, "client::send_face (%d) out of bounds??\n", facenum); |
230 | return; |
252 | return; |
231 | } |
253 | } |
232 | |
254 | |
233 | const facedata *d = face_data (face_num, ns->faceset); |
255 | if (faces_sent[facenum]) |
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256 | return; |
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257 | |
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258 | faces_sent[facenum] = true; |
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259 | |
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260 | // if for some reason we let a client without face caching connect, |
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261 | // we better support that decision here and implement it. |
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262 | if (!facecache) |
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263 | return send_image (facenum); |
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264 | |
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265 | if (fxix) |
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266 | { |
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267 | fxface.push_back (facenum); |
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268 | return; |
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269 | } |
234 | |
270 | |
235 | packet sl; |
271 | packet sl; |
236 | |
272 | |
237 | if (ns->facecache && !nocache) |
273 | if (force_face0) |
238 | { |
274 | sl << "face " << uint16 (facenum); |
239 | sl << (ns->image2 ? "face2 " : "face1 ") |
275 | else if (image2) |
240 | << uint16 (face_num); |
276 | sl << "face2 " << uint16 (facenum) << uint8 (0) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
241 | |
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242 | if (ns->image2) |
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243 | sl << uint8 (0); |
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244 | |
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245 | sl << uint32 (0); |
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246 | |
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247 | // how lame |
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248 | print_facename (sl, *d); |
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249 | |
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250 | ns->send_packet (sl); |
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251 | } |
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252 | else |
277 | else |
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278 | sl << "face1 " << uint16 (facenum) << uint32 (force_bad_checksum ? gcfclient_checksum (d) : 0); |
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279 | |
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280 | // how lame |
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281 | print_facename (sl, *d); |
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282 | send_packet (sl); |
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283 | |
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284 | if (EMI_smooth) |
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285 | { |
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286 | faceinfo *f = face_info (facenum); |
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287 | |
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288 | if (f->smooth) |
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289 | { |
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290 | send_face (f->smooth); |
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291 | |
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292 | packet sl ("smooth"); |
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293 | |
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294 | sl << uint16 (facenum) |
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295 | << uint16 (f->smooth); |
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296 | |
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297 | send_packet (sl); |
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298 | } |
253 | { |
299 | } |
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300 | } |
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301 | |
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302 | void client::flush_fx () |
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303 | { |
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304 | while (!fxface.empty ()) |
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305 | { |
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306 | packet fx ("fx"); |
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307 | packet sx ("sx"); |
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308 | |
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309 | do |
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310 | { |
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311 | faceidx facenum = fxface.back (); fxface.pop_back (); |
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312 | |
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313 | const facedata *d = face_data (facenum, faceset); |
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314 | |
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315 | if (d) |
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316 | { |
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317 | fx << ber32 (facenum) |
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318 | << data8 (d->chksum, CHKSUM_SIZE); |
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319 | |
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320 | if (smoothing) |
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321 | { |
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322 | faceinfo *f = face_info (facenum); |
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323 | |
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324 | if (f->smooth) |
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325 | { |
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326 | send_face (f->smooth); |
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327 | sx << ber32 (facenum) |
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328 | << ber32 (f->smooth) |
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329 | << ber32 (f->smoothlevel); |
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330 | } |
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331 | } |
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332 | } |
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333 | } |
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334 | while (!fxface.empty () |
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335 | && fx.room () > ber32::size + CHKSUM_SIZE + 1 |
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336 | && sx.room () > ber32::size * 3); |
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337 | |
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338 | send_packet (fx); |
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339 | if (sx.length () > 3) send_packet (sx); |
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340 | } |
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341 | } |
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342 | |
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343 | void |
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344 | client::send_image (faceidx facenum) |
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345 | { |
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346 | // never send face 0. ever. it does not exist. |
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347 | if (!facenum) |
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348 | return; |
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349 | |
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350 | const facedata *d = face_data (facenum, faceset); |
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351 | |
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352 | if (!d) |
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353 | { |
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354 | LOG (llevError, "client::send_image (%d) out of bounds??\n", facenum); |
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355 | return; |
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356 | } |
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357 | |
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358 | faces_sent[facenum] = true; |
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359 | |
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360 | if (force_image_newmap) |
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361 | force_newmap = true; |
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362 | |
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363 | packet sl; |
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364 | |
254 | sl << (ns->image2 ? "image2 " : "image ") |
365 | sl << (image2 ? "image2 " : "image ") |
255 | << uint32 (face_num); |
366 | << uint32 (facenum); |
256 | |
367 | |
257 | if (ns->image2) |
368 | if (image2) |
258 | sl << uint8 (0); |
369 | sl << uint8 (0); |
259 | |
370 | |
260 | sl << uint32 (d->data.size ()) |
371 | sl << uint32 (d->data.size ()) |
261 | << data (d->data.data (), d->data.size ()); |
372 | << data (d->data.data (), d->data.size ()); |
262 | |
373 | |
263 | ns->send_packet (sl); |
374 | send_packet (sl); |
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375 | } |
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376 | |
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377 | // send all faces of this object to the client |
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378 | // this uses more bandwidth initially, but makes |
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379 | // animations look much smoother, and every client |
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380 | // is supposed to do client-side caching anyways. |
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381 | void |
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382 | client::send_faces (object *ob) |
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383 | { |
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384 | send_face (ob->face); |
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385 | |
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386 | if (ob->animation_id) |
264 | } |
387 | { |
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388 | animation &anim = animations [ob->animation_id]; |
265 | |
389 | |
266 | ns->faces_sent[face_num] |= NS_FACESENT_FACE; |
390 | for (int i = 0; i < anim.num_animations; i++) |
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391 | send_face (anim.faces [i]); |
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392 | } |
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393 | } |
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394 | |
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395 | /** |
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396 | * Need to send an animation sequence to the client. |
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397 | * We will send appropriate face commands to the client if we haven't |
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398 | * sent them the face yet (this can become quite costly in terms of |
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399 | * how much we are sending - on the other hand, this should only happen |
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400 | * when the player logs in and picks stuff up. |
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401 | */ |
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402 | void |
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403 | client::send_animation (short anim_num) |
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404 | { |
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405 | /* Do some checking on the anim_num we got. Note that the animations |
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406 | * are added in contigous order, so if the number is in the valid |
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407 | * range, it must be a valid animation. |
|
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408 | */ |
|
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409 | if (anim_num < 0 || anim_num >= animations.size ()) |
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410 | { |
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411 | LOG (llevError, "esrv_send_anim (%d) out of bounds??\n", anim_num); |
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412 | return; |
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413 | } |
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414 | |
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415 | packet sl ("anim"); |
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416 | |
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417 | sl << uint16 (anim_num) |
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418 | << uint16 (0); /* flags - not used right now */ |
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419 | |
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420 | /* Build up the list of faces. Also, send any information (ie, the |
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421 | * the face itself) down to the client. |
|
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422 | */ |
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423 | for (int i = 0; i < animations[anim_num].num_animations; i++) |
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424 | { |
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425 | send_face (animations[anim_num].faces[i]); |
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426 | sl << uint16 (animations[anim_num].faces[i]); /* flags - not used right now */ |
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427 | } |
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428 | |
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429 | send_packet (sl); |
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430 | |
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431 | anims_sent[anim_num] = 1; |
267 | } |
432 | } |
268 | |
433 | |
269 | /** |
434 | /** |
270 | * Sends the number of images, checksum of the face file, |
435 | * Sends the number of images, checksum of the face file, |
271 | * and the image_info file information. See the doc/Developers/protocol |
436 | * and the image_info file information. See the doc/Developers/protocol |
272 | * if you want further detail. |
437 | * if you want further detail. |
273 | */ |
438 | */ |
274 | |
|
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275 | void |
439 | void |
276 | send_image_info (client *ns, char *params) |
440 | send_image_info (client *ns, char *params) |
277 | { |
441 | { |
278 | packet sl; |
442 | packet sl; |
279 | |
443 | |
… | |
… | |
318 | |
482 | |
319 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
483 | sl.printf ("replyinfo image_sums %d %d ", start, stop); |
320 | |
484 | |
321 | for (int i = start; i <= stop && i < faces.size (); i++) |
485 | for (int i = start; i <= stop && i < faces.size (); i++) |
322 | { |
486 | { |
323 | ns->faces_sent[i] |= NS_FACESENT_FACE; |
487 | ns->faces_sent[i] = true; |
324 | |
488 | |
325 | const facedata *d = face_data (i, ns->faceset); |
489 | const facedata *d = face_data (i, ns->faceset); |
326 | |
490 | |
327 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
491 | if (sl.room () < 2 + 4 + 1 + d->data.size () + 1) |
328 | break; |
492 | break; |