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(svn r27770) -Fix [FS#6540]: Initialize variables in station_sl.cpp (JGR)
[openttd.git] / src / table / elrail_data.h
blob102ad4264440b3b35d1d221de8a524c35a630267
1 /* $Id$ */
2
3 /*
4 * This file is part of OpenTTD.
5 * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6 * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
7 * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8 */
9
10 /**
11 * @file elrail_data.h Stores all the data for overhead wire and pylon drawing.
12 * @see elrail.c
13 */
14
15 #ifndef ELRAIL_DATA_H
16 #define ELRAIL_DATA_H
17
18 /**
19 * Tile Location group.
20 * This defines whether the X and or Y coordinate of a tile is even
21 */
22 enum TLG {
23 XEVEN_YEVEN = 0,
24 XEVEN_YODD = 1,
25 XODD_YEVEN = 2,
26 XODD_YODD = 3,
27 TLG_END
28 };
29
30 /**
31 * When determining the pylon configuration on the edge, two tiles are taken
32 * into account: the tile being drawn itself (the home tile, the one in
33 * ti->tile), and the neighbouring tile
34 */
35 enum TileSource {
36 TS_HOME = 0,
37 TS_NEIGHBOUR = 1,
38
39 TS_END
40 };
41
42 static const uint NUM_TRACKS_AT_PCP = 6;
43
44 /** Which PPPs are possible at all on a given PCP */
45 static const byte AllowedPPPonPCP[DIAGDIR_END] = {
46 1 << DIR_N | 1 << DIR_E | 1 << DIR_SE | 1 << DIR_S | 1 << DIR_W | 1 << DIR_NW,
47 1 << DIR_N | 1 << DIR_NE | 1 << DIR_E | 1 << DIR_S | 1 << DIR_SW | 1 << DIR_W,
48 1 << DIR_N | 1 << DIR_E | 1 << DIR_SE | 1 << DIR_S | 1 << DIR_W | 1 << DIR_NW,
49 1 << DIR_N | 1 << DIR_NE | 1 << DIR_E | 1 << DIR_S | 1 << DIR_SW | 1 << DIR_W,
50 };
51
52 /**
53 * Which of the PPPs are inside the tile. For the two PPPs on the tile border
54 * the following system is used: if you rotate the PCP so that it is in the
55 * north, the eastern PPP belongs to the tile.
56 */
57 static const byte OwnedPPPonPCP[DIAGDIR_END] = {
58 1 << DIR_SE | 1 << DIR_S | 1 << DIR_SW | 1 << DIR_W,
59 1 << DIR_N | 1 << DIR_SW | 1 << DIR_W | 1 << DIR_NW,
60 1 << DIR_N | 1 << DIR_NE | 1 << DIR_E | 1 << DIR_NW,
61 1 << DIR_NE | 1 << DIR_E | 1 << DIR_SE | 1 << DIR_S
62 };
63
64 /** Maps a track bit onto two PCP positions */
65 static const DiagDirection PCPpositions[TRACK_END][2] = {
66 {DIAGDIR_NE, DIAGDIR_SW}, // X
67 {DIAGDIR_SE, DIAGDIR_NW}, // Y
68 {DIAGDIR_NW, DIAGDIR_NE}, // UPPER
69 {DIAGDIR_SE, DIAGDIR_SW}, // LOWER
70 {DIAGDIR_SW, DIAGDIR_NW}, // LEFT
71 {DIAGDIR_NE, DIAGDIR_SE}, // RIGHT
72 };
73
74 #define PCP_NOT_ON_TRACK 0xFF
75 /**
76 * Preferred points of each trackbit. Those are the ones perpendicular to the
77 * track, plus the point in extension of the track (to mark end-of-track). PCPs
78 * which are not on either end of the track are fully preferred.
79 * @see PCPpositions
80 */
81 static const byte PreferredPPPofTrackAtPCP[TRACK_END][DIAGDIR_END] = {
82 { // X
83 1 << DIR_NE | 1 << DIR_SE | 1 << DIR_NW, // NE
84 PCP_NOT_ON_TRACK, // SE
85 1 << DIR_SE | 1 << DIR_SW | 1 << DIR_NW, // SW
86 PCP_NOT_ON_TRACK // NE
87 }, { // Y
88 PCP_NOT_ON_TRACK,
89 1 << DIR_NE | 1 << DIR_SE | 1 << DIR_SW,
90 PCP_NOT_ON_TRACK,
91 1 << DIR_SW | 1 << DIR_NW | 1 << DIR_NE
92 }, { // UPPER
93 1 << DIR_E | 1 << DIR_N | 1 << DIR_S,
94 PCP_NOT_ON_TRACK,
95 PCP_NOT_ON_TRACK,
96 1 << DIR_W | 1 << DIR_N | 1 << DIR_S
97 }, { // LOWER
98 PCP_NOT_ON_TRACK,
99 1 << DIR_E | 1 << DIR_N | 1 << DIR_S,
100 1 << DIR_W | 1 << DIR_N | 1 << DIR_S,
101 PCP_NOT_ON_TRACK
102 }, { // LEFT
103 PCP_NOT_ON_TRACK,
104 PCP_NOT_ON_TRACK,
105 1 << DIR_S | 1 << DIR_E | 1 << DIR_W,
106 1 << DIR_N | 1 << DIR_E | 1 << DIR_W
107 }, { // RIGHT
108 1 << DIR_N | 1 << DIR_E | 1 << DIR_W,
109 1 << DIR_S | 1 << DIR_E | 1 << DIR_W,
110 PCP_NOT_ON_TRACK,
111 PCP_NOT_ON_TRACK
112 }
113 };
114 #undef PCP_NOT_ON_TRACK
115
116
117 #define NUM_IGNORE_GROUPS 3
118 #define IGNORE_NONE 0xFF
119 /**
120 * In case we have a straight line, we place pylon only every two tiles,
121 * so there are certain tiles which we ignore. A straight line is found if
122 * we have exactly two PPPs.
123 */
124 static const byte IgnoredPCP[NUM_IGNORE_GROUPS][TLG_END][DIAGDIR_END] = {
125 { // Ignore group 1, X and Y tracks
126 { // X even, Y even
127 IGNORE_NONE,
128 1 << DIR_NE | 1 << DIR_SW,
129 1 << DIR_NW | 1 << DIR_SE,
130 IGNORE_NONE
131 }, { // X even, Y odd
132 IGNORE_NONE,
133 IGNORE_NONE,
134 1 << DIR_NW | 1 << DIR_SE,
135 1 << DIR_NE | 1 << DIR_SW
136 }, { // X odd, Y even
137 1 << DIR_NW | 1 << DIR_SE,
138 1 << DIR_NE | 1 << DIR_SW,
139 IGNORE_NONE,
140 IGNORE_NONE
141 }, { // X odd, Y odd
142 1 << DIR_NW | 1 << DIR_SE,
143 IGNORE_NONE,
144 IGNORE_NONE,
145 1 << DIR_NE | 1 << DIR_SW
146 }
147 },
148 { // Ignore group 2, LEFT and RIGHT tracks
149 {
150 1 << DIR_E | 1 << DIR_W,
151 IGNORE_NONE,
152 IGNORE_NONE,
153 1 << DIR_E | 1 << DIR_W
154 }, {
155 IGNORE_NONE,
156 1 << DIR_E | 1 << DIR_W,
157 1 << DIR_E | 1 << DIR_W,
158 IGNORE_NONE
159 }, {
160 IGNORE_NONE,
161 1 << DIR_E | 1 << DIR_W,
162 1 << DIR_E | 1 << DIR_W,
163 IGNORE_NONE
164 }, {
165 1 << DIR_E | 1 << DIR_W,
166 IGNORE_NONE,
167 IGNORE_NONE,
168 1 << DIR_E | 1 << DIR_W
169 }
170 },
171 { // Ignore group 3, UPPER and LOWER tracks
172 {
173 1 << DIR_N | 1 << DIR_S,
174 1 << DIR_N | 1 << DIR_S,
175 IGNORE_NONE,
176 IGNORE_NONE
177 }, {
178 IGNORE_NONE,
179 IGNORE_NONE,
180 1 << DIR_N | 1 << DIR_S,
181 1 << DIR_N | 1 << DIR_S
182 }, {
183 IGNORE_NONE,
184 IGNORE_NONE,
185 1 << DIR_N | 1 << DIR_S ,
186 1 << DIR_N | 1 << DIR_S
187 }, {
188 1 << DIR_N | 1 << DIR_S,
189 1 << DIR_N | 1 << DIR_S,
190 IGNORE_NONE,
191 IGNORE_NONE
192 }
193 }
194 };
195
196 #undef NO_IGNORE
197
198 /** Which pylons can definitely NOT be built */
199 static const byte DisallowedPPPofTrackAtPCP[TRACK_END][DIAGDIR_END] = {
200 {1 << DIR_SW | 1 << DIR_NE, 0, 1 << DIR_SW | 1 << DIR_NE, 0 }, // X
201 {0, 1 << DIR_NW | 1 << DIR_SE, 0, 1 << DIR_NW | 1 << DIR_SE}, // Y
202 {1 << DIR_W | 1 << DIR_E, 0, 0, 1 << DIR_W | 1 << DIR_E }, // UPPER
203 {0, 1 << DIR_W | 1 << DIR_E, 1 << DIR_W | 1 << DIR_E, 0 }, // LOWER
204 {0, 0, 1 << DIR_S | 1 << DIR_N, 1 << DIR_N | 1 << DIR_S }, // LEFT
205 {1 << DIR_S | 1 << DIR_N, 1 << DIR_S | 1 << DIR_N, 0, 0, }, // RIGHT
206 };
207
208 /* This array stores which track bits can meet at a tile edge */
209 static const Track TracksAtPCP[DIAGDIR_END][NUM_TRACKS_AT_PCP] = {
210 {TRACK_X, TRACK_X, TRACK_UPPER, TRACK_LOWER, TRACK_LEFT, TRACK_RIGHT},
211 {TRACK_Y, TRACK_Y, TRACK_UPPER, TRACK_LOWER, TRACK_LEFT, TRACK_RIGHT},
212 {TRACK_X, TRACK_X, TRACK_UPPER, TRACK_LOWER, TRACK_LEFT, TRACK_RIGHT},
213 {TRACK_Y, TRACK_Y, TRACK_UPPER, TRACK_LOWER, TRACK_LEFT, TRACK_RIGHT},
214 };
215
216 /* takes each of the 6 track bits from the array above and
217 * assigns it to the home tile or neighbour tile */
218 static const TileSource TrackSourceTile[DIAGDIR_END][NUM_TRACKS_AT_PCP] = {
219 {TS_HOME, TS_NEIGHBOUR, TS_HOME , TS_NEIGHBOUR, TS_NEIGHBOUR, TS_HOME },
220 {TS_HOME, TS_NEIGHBOUR, TS_NEIGHBOUR, TS_HOME , TS_NEIGHBOUR, TS_HOME },
221 {TS_HOME, TS_NEIGHBOUR, TS_NEIGHBOUR, TS_HOME , TS_HOME , TS_NEIGHBOUR},
222 {TS_HOME, TS_NEIGHBOUR, TS_HOME , TS_NEIGHBOUR, TS_HOME , TS_NEIGHBOUR},
223 };
224
225 /* Several PPPs maybe exist, here they are sorted in order of preference. */
226 static const Direction PPPorder[DIAGDIR_END][TLG_END][DIR_END] = { // X - Y
227 { // PCP 0
228 {DIR_NE, DIR_NW, DIR_SE, DIR_SW, DIR_N, DIR_E, DIR_S, DIR_W}, // evn - evn
229 {DIR_NE, DIR_SE, DIR_SW, DIR_NW, DIR_S, DIR_W, DIR_N, DIR_E}, // evn - odd
230 {DIR_SW, DIR_NW, DIR_NE, DIR_SE, DIR_S, DIR_W, DIR_N, DIR_E}, // odd - evn
231 {DIR_SW, DIR_SE, DIR_NE, DIR_NW, DIR_N, DIR_E, DIR_S, DIR_W}, // odd - odd
232 }, {// PCP 1
233 {DIR_NE, DIR_NW, DIR_SE, DIR_SW, DIR_S, DIR_E, DIR_N, DIR_W}, // evn - evn
234 {DIR_NE, DIR_SE, DIR_SW, DIR_NW, DIR_N, DIR_W, DIR_S, DIR_E}, // evn - odd
235 {DIR_SW, DIR_NW, DIR_NE, DIR_SE, DIR_N, DIR_W, DIR_S, DIR_E}, // odd - evn
236 {DIR_SW, DIR_SE, DIR_NE, DIR_NW, DIR_S, DIR_E, DIR_N, DIR_W}, // odd - odd
237 }, {// PCP 2
238 {DIR_NE, DIR_NW, DIR_SE, DIR_SW, DIR_S, DIR_W, DIR_N, DIR_E}, // evn - evn
239 {DIR_NE, DIR_SE, DIR_SW, DIR_NW, DIR_N, DIR_E, DIR_S, DIR_W}, // evn - odd
240 {DIR_SW, DIR_NW, DIR_NE, DIR_SE, DIR_N, DIR_E, DIR_S, DIR_W}, // odd - evn
241 {DIR_SW, DIR_SE, DIR_NE, DIR_NW, DIR_S, DIR_W, DIR_N, DIR_E}, // odd - odd
242 }, {// PCP 3
243 {DIR_NE, DIR_NW, DIR_SE, DIR_SW, DIR_N, DIR_W, DIR_S, DIR_E}, // evn - evn
244 {DIR_NE, DIR_SE, DIR_SW, DIR_NW, DIR_S, DIR_E, DIR_N, DIR_W}, // evn - odd
245 {DIR_SW, DIR_NW, DIR_NE, DIR_SE, DIR_S, DIR_E, DIR_N, DIR_W}, // odd - evn
246 {DIR_SW, DIR_SE, DIR_NE, DIR_NW, DIR_N, DIR_W, DIR_S, DIR_E}, // odd - odd
247 }
248 };
249 /* Geometric placement of the PCP relative to the tile origin */
250 static const int8 x_pcp_offsets[DIAGDIR_END] = {0, 8, 16, 8};
251 static const int8 y_pcp_offsets[DIAGDIR_END] = {8, 16, 8, 0};
252 /* Geometric placement of the PPP relative to the PCP*/
253 static const int8 x_ppp_offsets[DIR_END] = {-2, -4, -2, 0, 2, 4, 2, 0};
254 static const int8 y_ppp_offsets[DIR_END] = {-2, 0, 2, 4, 2, 0, -2, -4};
255
256 /**
257 * Offset for pylon sprites from the base pylon sprite.
258 */
259 enum PylonSpriteOffset {
260 PSO_Y_NE,
261 PSO_Y_SW,
262 PSO_X_NW,
263 PSO_X_SE,
264 PSO_EW_N,
265 PSO_EW_S,
266 PSO_NS_W,
267 PSO_NS_E,
268 };
269
270 /* The type of pylon to draw at each PPP */
271 static const uint8 pylon_sprites[] = {
272 PSO_EW_N,
273 PSO_Y_NE,
274 PSO_NS_E,
275 PSO_X_SE,
276 PSO_EW_S,
277 PSO_Y_SW,
278 PSO_NS_W,
279 PSO_X_NW,
280 };
281
282 /**
283 * Offset for wire sprites from the base wire sprite.
284 */
285 enum WireSpriteOffset {
286 WSO_X_SHORT,
287 WSO_Y_SHORT,
288 WSO_EW_SHORT,
289 WSO_NS_SHORT,
290 WSO_X_SHORT_DOWN,
291 WSO_Y_SHORT_UP,
292 WSO_X_SHORT_UP,
293 WSO_Y_SHORT_DOWN,
294
295 WSO_X_SW,
296 WSO_Y_SE,
297 WSO_EW_E,
298 WSO_NS_S,
299 WSO_X_SW_DOWN,
300 WSO_Y_SE_UP,
301 WSO_X_SW_UP,
302 WSO_Y_SE_DOWN,
303
304 WSO_X_NE,
305 WSO_Y_NW,
306 WSO_EW_W,
307 WSO_NS_N,
308 WSO_X_NE_DOWN,
309 WSO_Y_NW_UP,
310 WSO_X_NE_UP,
311 WSO_Y_NW_DOWN,
312
313 WSO_ENTRANCE_NE,
314 WSO_ENTRANCE_SE,
315 WSO_ENTRANCE_SW,
316 WSO_ENTRANCE_NW,
317 };
318
319 struct SortableSpriteStruct {
320 uint8 image_offset;
321 int8 x_offset;
322 int8 y_offset;
323 int8 x_size;
324 int8 y_size;
325 int8 z_size;
326 int8 z_offset;
327 };
328
329 /** Distance between wire and rail */
330 static const uint ELRAIL_ELEVATION = 10;
331 /** Wires that a draw one level higher than the north corner. */
332 static const uint ELRAIL_ELEVRAISE = ELRAIL_ELEVATION + TILE_HEIGHT;
333
334 static const SortableSpriteStruct RailCatenarySpriteData[] = {
335 /* X direction
336 * Flat tiles:
337 * Wires */
338 { WSO_X_SW, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! 0: Wire in X direction, pylon on the SW end only
339 { WSO_X_NE, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! 1: Wire in X direction, pylon on the NE end
340 { WSO_X_SHORT, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! 2: Wire in X direction, pylon on both ends
341
342 /* "up" tiles
343 * Wires */
344 { WSO_X_SW_UP, 0, 7, 15, 8, 1, ELRAIL_ELEVRAISE }, //! 3: Wire in X pitch up, pylon on the SW end only
345 { WSO_X_NE_UP, 0, 7, 15, 8, 1, ELRAIL_ELEVRAISE }, //! 4: Wire in X pitch up, pylon on the NE end
346 { WSO_X_SHORT_UP, 0, 7, 15, 8, 1, ELRAIL_ELEVRAISE }, //! 5: Wire in X pitch up, pylon on both ends
347
348 /* "down" tiles
349 * Wires */
350 { WSO_X_SW_DOWN, 0, 7, 15, 8, 1, ELRAIL_ELEVATION }, //! 6: Wire in X pitch down, pylon on the SW end
351 { WSO_X_NE_DOWN, 0, 7, 15, 8, 1, ELRAIL_ELEVATION }, //! 7: Wire in X pitch down, pylon on the NE end
352 { WSO_X_SHORT_DOWN, 0, 7, 15, 8, 1, ELRAIL_ELEVATION }, //! 8: Wire in X pitch down, pylon on both ends
353
354
355 /* Y direction
356 * Flat tiles:
357 * Wires */
358 { WSO_Y_SE, 7, 0, 1, 15, 1, ELRAIL_ELEVATION }, //! 9: Wire in Y direction, pylon on the SE end only
359 { WSO_Y_NW, 7, 0, 1, 15, 1, ELRAIL_ELEVATION }, //!10: Wire in Y direction, pylon on the NW end
360 { WSO_Y_SHORT, 7, 0, 1, 15, 1, ELRAIL_ELEVATION }, //!11: Wire in Y direction, pylon on both ends
361
362 /* "up" tiles
363 * Wires */
364 { WSO_Y_SE_UP, 7, 0, 8, 15, 1, ELRAIL_ELEVRAISE }, //!12: Wire in Y pitch up, pylon on the SE end only
365 { WSO_Y_NW_UP, 7, 0, 8, 15, 1, ELRAIL_ELEVRAISE }, //!13: Wire in Y pitch up, pylon on the NW end
366 { WSO_Y_SHORT_UP, 7, 0, 8, 15, 1, ELRAIL_ELEVRAISE }, //!14: Wire in Y pitch up, pylon on both ends
367
368 /* "down" tiles
369 * Wires */
370 { WSO_Y_SE_DOWN, 7, 0, 8, 15, 1, ELRAIL_ELEVATION }, //!15: Wire in Y pitch down, pylon on the SE end
371 { WSO_Y_NW_DOWN, 7, 0, 8, 15, 1, ELRAIL_ELEVATION }, //!16: Wire in Y pitch down, pylon on the NW end
372 { WSO_Y_SHORT_DOWN, 7, 0, 8, 15, 1, ELRAIL_ELEVATION }, //!17: Wire in Y pitch down, pylon on both ends
373
374 /* NS Direction */
375 { WSO_NS_SHORT, 8, 0, 8, 8, 1, ELRAIL_ELEVATION }, //!18: LEFT trackbit wire, pylon on both ends
376 { WSO_NS_SHORT, 0, 8, 8, 8, 1, ELRAIL_ELEVATION }, //!19: RIGHT trackbit wire, pylon on both ends
377
378 { WSO_NS_N, 8, 0, 8, 8, 1, ELRAIL_ELEVATION }, //!20: LEFT trackbit wire, pylon on N end
379 { WSO_NS_N, 0, 8, 8, 8, 1, ELRAIL_ELEVATION }, //!21: RIGHT trackbit wire, pylon on N end
380
381 { WSO_NS_S, 8, 0, 8, 8, 1, ELRAIL_ELEVATION }, //!22: LEFT trackbit wire, pylon on S end
382 { WSO_NS_S, 0, 8, 8, 8, 1, ELRAIL_ELEVATION }, //!23: RIGHT trackbit wire, pylon on S end
383
384 /* EW Direction */
385 { WSO_EW_SHORT, 7, 0, 1, 1, 1, ELRAIL_ELEVATION }, //!24: UPPER trackbit wire, pylon on both ends
386 { WSO_EW_SHORT, 15, 8, 3, 3, 1, ELRAIL_ELEVATION }, //!25: LOWER trackbit wire, pylon on both ends
387
388 { WSO_EW_W, 7, 0, 1, 1, 1, ELRAIL_ELEVATION }, //!28: UPPER trackbit wire, pylon on both ends
389 { WSO_EW_W, 15, 8, 3, 3, 1, ELRAIL_ELEVATION }, //!29: LOWER trackbit wire, pylon on both ends
390
391 { WSO_EW_E, 7, 0, 1, 1, 1, ELRAIL_ELEVATION }, //!32: UPPER trackbit wire, pylon on both ends
392 { WSO_EW_E, 15, 8, 3, 3, 1, ELRAIL_ELEVATION } //!33: LOWER trackbit wire, pylon on both ends
393 };
394
395 static const SortableSpriteStruct RailCatenarySpriteData_Depot[] = {
396 { WSO_ENTRANCE_NE, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! Wire for NE depot exit
397 { WSO_ENTRANCE_SE, 7, 0, 1, 15, 1, ELRAIL_ELEVATION }, //! Wire for SE depot exit
398 { WSO_ENTRANCE_SW, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! Wire for SW depot exit
399 { WSO_ENTRANCE_NW, 7, 0, 1, 15, 1, ELRAIL_ELEVATION } //! Wire for NW depot exit
400 };
401
402 static const SortableSpriteStruct RailCatenarySpriteData_Tunnel[] = {
403 { WSO_ENTRANCE_NE, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! Wire for NE tunnel exit
404 { WSO_ENTRANCE_SE, 7, 0, 1, 15, 1, ELRAIL_ELEVATION }, //! Wire for SE tunnel exit
405 { WSO_ENTRANCE_SW, 0, 7, 15, 1, 1, ELRAIL_ELEVATION }, //! Wire for SW tunnel exit
406 { WSO_ENTRANCE_NW, 7, 0, 1, 15, 1, ELRAIL_ELEVATION } //! Wire for NW tunnel exit
407 };
408
409
410 /**
411 * Refers to a certain element of the catenary.
412 * Identifiers for Wires:
413 * <ol><li>Direction of the wire</li>
414 * <li>Slope of the tile for diagonals, placement inside the track for horiz/vertical pieces</li>
415 * <li>Place where a pylon shoule be</li></ol>
416 * Identifiers for Pylons:
417 * <ol><li>Direction of the wire</li>
418 * <li>Slope of the tile</li>
419 * <li>Position of the Pylon relative to the track</li>
420 * <li>Position of the Pylon inside the tile</li></ol>
421 */
422 enum RailCatenarySprite {
423 WIRE_X_FLAT_SW,
424 WIRE_X_FLAT_NE,
425 WIRE_X_FLAT_BOTH,
426
427 WIRE_X_UP_SW,
428 WIRE_X_UP_NE,
429 WIRE_X_UP_BOTH,
430
431 WIRE_X_DOWN_SW,
432 WIRE_X_DOWN_NE,
433 WIRE_X_DOWN_BOTH,
434
435 WIRE_Y_FLAT_SE,
436 WIRE_Y_FLAT_NW,
437 WIRE_Y_FLAT_BOTH,
438
439 WIRE_Y_UP_SE,
440 WIRE_Y_UP_NW,
441 WIRE_Y_UP_BOTH,
442
443 WIRE_Y_DOWN_SE,
444 WIRE_Y_DOWN_NW,
445 WIRE_Y_DOWN_BOTH,
446
447 WIRE_NS_W_BOTH,
448 WIRE_NS_E_BOTH,
449
450 WIRE_NS_W_N,
451 WIRE_NS_E_N,
452
453 WIRE_NS_W_S,
454 WIRE_NS_E_S,
455
456 WIRE_EW_N_BOTH,
457 WIRE_EW_S_BOTH,
458
459 WIRE_EW_N_W,
460 WIRE_EW_S_W,
461
462 WIRE_EW_N_E,
463 WIRE_EW_S_E,
464
465 INVALID_CATENARY = 0xFF
466 };
467
468 /* Selects a Wire (with white and grey ends) depending on whether:
469 * a) none (should never happen)
470 * b) the first
471 * c) the second
472 * d) both
473 * PCP exists.*/
474 static const RailCatenarySprite Wires[5][TRACK_END][4] = {
475 { // Tileh == 0
476 {INVALID_CATENARY, WIRE_X_FLAT_NE, WIRE_X_FLAT_SW, WIRE_X_FLAT_BOTH},
477 {INVALID_CATENARY, WIRE_Y_FLAT_SE, WIRE_Y_FLAT_NW, WIRE_Y_FLAT_BOTH},
478 {INVALID_CATENARY, WIRE_EW_N_W, WIRE_EW_N_E, WIRE_EW_N_BOTH},
479 {INVALID_CATENARY, WIRE_EW_S_E, WIRE_EW_S_W, WIRE_EW_S_BOTH},
480 {INVALID_CATENARY, WIRE_NS_W_S, WIRE_NS_W_N, WIRE_NS_W_BOTH},
481 {INVALID_CATENARY, WIRE_NS_E_N, WIRE_NS_E_S, WIRE_NS_E_BOTH},
482 }, { // Tileh == 3
483 {INVALID_CATENARY, WIRE_X_UP_NE, WIRE_X_UP_SW, WIRE_X_UP_BOTH},
484 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
485 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
486 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
487 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
488 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
489 }, { // Tileh == 6
490 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
491 {INVALID_CATENARY, WIRE_Y_UP_SE, WIRE_Y_UP_NW, WIRE_Y_UP_BOTH},
492 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
493 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
494 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
495 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
496 }, { // Tileh == 9
497 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
498 {INVALID_CATENARY, WIRE_Y_DOWN_SE, WIRE_Y_DOWN_NW, WIRE_Y_DOWN_BOTH},
499 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
500 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
501 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
502 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
503 }, { // Tileh == 12
504 {INVALID_CATENARY, WIRE_X_DOWN_NE, WIRE_X_DOWN_SW, WIRE_X_DOWN_BOTH},
505 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
506 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
507 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
508 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
509 {INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY, INVALID_CATENARY},
510 }
511 };
512
513 #endif /* ELRAIL_DATA_H */
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