Mercurial > ~darius > hgwebdir.cgi > paradise_server
annotate src/weapons.c @ 14:b7fe2e0e4b86
Added #defines which hold the chance of nebulous terrain affecting
your weapons systems.
| author | darius |
|---|---|
| date | Sat, 06 Dec 1997 06:27:50 +0000 |
| parents | ed82a42ba89d |
| children | 9f180bf494bd |
| rev | line source |
|---|---|
| 9 | 1 /*-------------------------------------------------------------------------- |
| 2 NETREK II -- Paradise | |
| 3 | |
| 4 Permission to use, copy, modify, and distribute this software and its | |
| 5 documentation, or any derivative works thereof, for any NON-COMMERCIAL | |
| 6 purpose and without fee is hereby granted, provided that this copyright | |
| 7 notice appear in all copies. No representations are made about the | |
| 8 suitability of this software for any purpose. This software is provided | |
| 9 "as is" without express or implied warranty. | |
| 10 | |
| 11 Xtrek Copyright 1986 Chris Guthrie | |
| 12 Netrek (Xtrek II) Copyright 1989 Kevin P. Smith | |
| 13 Scott Silvey | |
| 14 Paradise II (Netrek II) Copyright 1993 Larry Denys | |
| 15 Kurt Olsen | |
| 16 Brandon Gillespie | |
| 17 --------------------------------------------------------------------------*/ | |
| 18 | |
| 19 #include "config.h" | |
| 20 | |
| 21 #include <stdio.h> | |
| 22 #include <stdlib.h> | |
| 23 #include <string.h> | |
| 24 #include <math.h> | |
| 25 #include <setjmp.h> | |
| 26 | |
| 27 #include "defs.h" | |
| 28 #include "struct.h" | |
| 29 #include "data.h" | |
| 30 #include "daemonII.h" | |
| 31 #include "weapons.h" | |
| 32 #include "shmem.h" | |
| 33 | |
| 34 | |
| 35 | |
| 36 /*------------------------------VISIBLE FUNCTIONS-------------------------*/ | |
| 37 | |
| 38 /*---------------------------------HOSTILE_TO-----------------------------*/ | |
| 39 /* | |
| 40 * This returns whether an object is hostile to another object. It returns 1 | |
| 41 * if we are hostile or at war with the object | |
| 42 */ | |
| 43 | |
| 44 | |
| 45 extern int inflict_damage(); | |
| 46 int torp_track_opportunity(); | |
| 47 extern void move_torp(); | |
| 48 extern void move_missile(); | |
| 49 | |
| 50 int | |
| 51 hostile_to(warmask, team, pl) | |
| 52 int warmask, team; | |
| 53 struct player *pl; | |
| 54 { | |
| 55 return (warmask & pl->p_team) || (team & (pl->p_swar | pl->p_hostile)); | |
| 56 } | |
| 57 | |
| 58 | |
| 59 | |
| 60 | |
| 61 /*----------------------------------EXPLODE-------------------------------*/ | |
| 62 /* | |
| 63 * This function decides which players to inflict damage on when a torp | |
| 64 * explodes. | |
| 65 */ | |
| 66 | |
| 67 void | |
| 68 explode_damage(torp, radius, why) | |
| 69 struct basetorp *torp; | |
| 70 int radius; | |
| 71 int why; | |
| 72 { | |
| 73 register int i; /* looping var */ | |
| 74 int dx, dy, dist; /* to calc distance from torp to players */ | |
| 75 int damage; /* to hold damage inflicted */ | |
| 76 register struct player *j; /* to point to players */ | |
| 77 | |
| 78 for (i = 0, j = &players[i]; i < MAXPLAYER; i++, j++) | |
| 79 { | |
| 80 if (j->p_status != PALIVE) /* no need to check players not alive */ | |
| 81 continue; | |
| 82 | |
| 83 if (j->p_no == torp->bt_owner) /* General Vote, September, 1995. */ | |
| 84 continue; /* Torps no longer damage owner. */ | |
| 85 | |
| 86 if ((torp->bt_status == TDET) /* if torp was detted then */ | |
| 87 && ((j->p_no == torp->bt_owner) || /* cannot damage firing | |
| 88 * player */ | |
| 89 ((j->p_no != torp->bt_whodet) /* cannot damage players on | |
| 90 * same team */ | |
| 91 && (j->p_team == players[torp->bt_whodet].p_team))) | |
| 92 ) /* except the detter */ | |
| 93 continue; | |
| 94 | |
| 95 dx = torp->bt_x - j->p_x; /* calc delta x and y */ | |
| 96 dy = torp->bt_y - j->p_y; | |
| 97 if (ABS(dx) > radius || ABS(dy) > radius) | |
| 98 continue; /* continue if obviously too far */ | |
| 99 | |
| 100 dist = dx * dx + dy * dy; /* calc distnace squared */ | |
| 101 if (dist > radius * radius) /* if not within damage distance */ | |
| 102 continue; /* then continue */ | |
| 103 if (dist > EXPDIST * EXPDIST) /* if not direct hit */ | |
| 104 damage = torp->bt_damage * (radius - sqrt((double) dist)) / | |
| 105 (radius - EXPDIST); | |
| 106 else /* else if direct hit */ | |
| 107 damage = torp->bt_damage; /* do torp damage */ | |
| 108 | |
| 109 if (damage > 0) | |
| 110 { /* if damage was done then */ | |
| 111 if (players[torp->bt_owner].p_hostile & j->p_team) /* start war if */ | |
| 112 players[torp->bt_owner].p_swar |= j->p_team; /* necessary */ | |
| 113 inflict_damage(&players[torp->bt_owner], &players[torp->bt_whodet], | |
| 114 j, damage, why); | |
| 115 } | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 void | |
| 120 explode(torp) | |
| 121 struct basetorp *torp; /* pointer to exploding torp's struct */ | |
| 122 { | |
| 123 explode_damage(torp, DAMDIST, KTORP); | |
| 124 torp->bt_status = TEXPLODE; /* set the torp to explode */ | |
| 125 torp->bt_fuse = 10 / TORPFUSE; | |
| 126 } | |
| 127 | |
| 128 | |
| 129 /*---------------------------------PEXPLODE-------------------------------*/ | |
| 130 /* | |
| 131 * This function does the explosion of a plasma torp. It goes through all | |
| 132 * players and damages them if they are close enough to get damaged | |
| 133 */ | |
| 134 | |
| 135 void | |
| 136 pexplode(plasmatorp) | |
| 137 struct plasmatorp *plasmatorp;/* ptr to plasma to explode */ | |
| 138 { | |
| 139 explode_damage(&plasmatorp->pt_base, PLASDAMDIST, KPLASMA); | |
| 140 plasmatorp->pt_status = PTEXPLODE; /* set the plasma to explode */ | |
| 141 plasmatorp->pt_fuse = 10 / PLASMAFUSE; | |
| 142 } | |
| 143 | |
| 144 | |
| 145 /*-------------------------------UDPHASER----------------------------------*/ | |
| 146 /* | |
| 147 * This function goes through all players and calcs the damage from a phaser | |
| 148 * hit if the phaser hit a target. | |
| 149 */ | |
| 150 | |
| 151 void | |
| 152 udphaser() | |
| 153 { | |
| 154 register int i; /* looping var */ | |
| 155 register struct phaser *j; /* to point to phaser being fired */ | |
| 156 register struct player *victim; /* to point to the poor victim */ | |
| 157 | |
| 158 for (i = 0, j = &phasers[i]; i < MAXPLAYER; i++, j++) | |
| 159 { /* all players */ | |
| 160 switch (j->ph_status) | |
| 161 { /* check player's phaser status */ | |
| 162 case PHFREE: /* if not beging fired */ | |
| 163 continue; /* then continue */ | |
| 164 case PHMISS: /* if it missed */ | |
| 165 case PHHIT2: /* or ????? */ | |
| 166 if (j->ph_fuse-- == 1) /* dec count of phaser */ | |
| 167 j->ph_status = PHFREE; /* free it up if count done */ | |
| 168 break; | |
| 169 case PHHIT: /* if it hit someone then */ | |
| 170 if (j->ph_fuse-- == players[i].p_ship.s_phaser.fuse) | |
| 171 { | |
| 172 victim = &players[j->ph_target]; /* get the victim */ | |
| 173 if (players[i].p_hostile & victim->p_team) /* start war if */ | |
| 174 players[i].p_swar |= victim->p_team; /* necessary */ | |
| 175 if (victim->p_status == PALIVE) /* only damage if alive */ | |
| 176 inflict_damage(&players[i], 0, victim, j->ph_damage, KPHASER); | |
| 177 } /* end of if phaser hit someone */ | |
| 178 if (j->ph_fuse == 0) | |
| 179 j->ph_status = PHFREE; | |
| 180 break; | |
| 181 } /* end of switch */ | |
| 182 } /* end of for loop through players */ | |
| 183 } | |
| 184 | |
| 185 | |
| 186 | |
| 187 /*----------------------------WEAP_NEAR_OBJECT-----------------------------*/ | |
| 188 /* This function checks for objects within *dist* of a weapon. */ | |
| 189 /* this function will use the space grid */ | |
| 190 | |
| 191 int | |
| 192 weap_near_object(torp, type, dist) | |
| 193 struct basetorp *torp; | |
| 194 int type; | |
| 195 int dist; | |
| 196 { | |
| 197 register struct planet *pl; /* to point to the planets */ | |
| 198 int dx, dy, i; | |
| 199 | |
| 200 for (i = 0, pl = &planets[i]; i < NUMPLANETS; i++, pl = &planets[i]) | |
| 201 { | |
| 202 if (PL_TYPE(*pl) != type) | |
| 203 /* if not of the type specified, don't bother */ | |
| 204 continue; | |
| 205 dx = torp->bt_x - pl->pl_x; | |
| 206 dy = torp->bt_y - pl->pl_y; | |
| 207 if (ABS(dx) > dist || ABS(dy) > dist) | |
| 208 continue; /* the obvious thing */ | |
| 209 if (dx * dx + dy * dy < dist * dist) | |
| 210 return 1; /* yep, it hit. return a 1. */ | |
| 211 } | |
| 212 return 0; /* return that it should continue */ | |
| 213 } | |
| 214 | |
| 215 int | |
| 216 near_player(torp, dist) | |
| 217 struct basetorp *torp; /* the torp to check for */ | |
| 218 int dist; | |
| 219 { | |
| 220 register int i; /* looping var */ | |
| 221 int dx, dy; /* to calc torp-player distance */ | |
| 222 register struct player *j; /* to point to players */ | |
| 223 | |
| 224 for (i = 0, j = &players[i]; i < MAXPLAYER; i++, j++) | |
| 225 { | |
| 226 if (j->p_status != PALIVE) | |
| 227 continue; /* don't check players not alive */ | |
| 228 if (j->p_no == torp->bt_owner) | |
| 229 continue; /* no exploding on self */ | |
| 230 if (!hostile_to(torp->bt_war, torp->bt_team, j)) | |
| 231 continue; /* disregard if both teams not at war */ | |
| 232 dx = torp->bt_x - j->p_x; /* calc delta coords */ | |
| 233 dy = torp->bt_y - j->p_y; | |
| 234 if (ABS(dx) > dist || ABS(dy) > dist) | |
| 235 continue; /* disregard if obviously too far */ | |
| 236 if (dx * dx + dy * dy < dist * dist) | |
| 237 { | |
| 238 torp->bt_whodet = i; /* this guy is the detonator */ | |
| 239 return 1; /* if close enough to explode then return 1 */ | |
| 240 } | |
| 241 } | |
| 242 return 0; /* return that torp should continue */ | |
| 243 } | |
| 244 | |
| 245 | |
| 246 int | |
| 247 f_land(mis) /* the fighter landing function */ | |
| 248 struct missile *mis; /* the fighter to check for */ | |
| 249 { | |
| 250 int dx, dy; /* to calc fighter-player distance */ | |
| 251 register struct player *j; /* to point to players */ | |
| 252 | |
| 253 j = &players[mis->ms_owner]; | |
| 254 | |
| 255 if (!(j->p_armies < j->p_ship.s_maxarmies)) | |
| 256 return 0; /* no room! */ | |
| 257 dx = mis->ms_x - j->p_x; /* calc delta coords */ | |
| 258 dy = mis->ms_y - j->p_y; | |
| 259 if (ABS(dx) > EXPDIST || ABS(dy) > EXPDIST) | |
| 260 return 0; /* obviously too far */ | |
| 261 if (dx * dx + dy * dy < EXPDIST * EXPDIST) | |
| 262 return 1; /* if close enough to land then return 1 */ | |
| 263 | |
| 264 return 0; /* return that fighter should continue */ | |
| 265 } | |
| 266 | |
| 267 | |
| 268 /*----------------------------------PNEAR----------------------------------*/ | |
| 269 /* | |
| 270 * This function goes through the players and sees if there is a player close | |
| 271 * enough for a plasma torp to explode on. This function returns a 1 if the | |
| 272 * plasma should explode and a 0 if it should continue to travel through | |
| 273 * spac. | |
| 274 */ | |
| 275 | |
| 276 int | |
| 277 pnear(plasmatorp) | |
| 278 struct plasmatorp *plasmatorp;/* the plasma torp to check for */ | |
| 279 { | |
| 280 return near_player(&plasmatorp->pt_base, EXPDIST); | |
| 281 } | |
| 282 | |
| 283 | |
| 284 int | |
| 285 outofbounds(x, y) | |
| 286 int x, y; | |
| 287 { | |
| 288 return x < 0 || x > GWIDTH || y < 0 || y > GWIDTH; | |
| 289 } | |
| 290 | |
| 291 /*--------------------------------UDTORPS----------------------------------*/ | |
| 292 /* | |
| 293 * This function updates the torps. It goes through all torps and checks to | |
| 294 * see if they need to be updated. It they are mving they track toward the | |
| 295 * nearest target. this function also handles the explosion and makes sure | |
| 296 * that torps do not go off the edge of the galaxy. | |
| 297 */ | |
| 298 | |
| 299 void | |
| 300 udtorps() | |
| 301 { | |
| 302 register int i; /* looping var--to loop through torps */ | |
| 303 int turn; /* to get whether to go right or left */ | |
| 304 int heading; /* to hold torps heading */ | |
| 305 register struct torp *j; /* to point to torps */ | |
| 306 | |
| 307 for (i = 0, j = &torps[i]; i < MAXPLAYER * MAXTORP; i++, j++) | |
| 308 { | |
| 309 switch (j->t_status) | |
| 310 { /* check status of torp */ | |
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311 case TFREE: /* if torp not active then */ |
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312 continue; /* go on to next torp */ |
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313 case TMOVE: |
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314 case TSTRAIGHT: /* if torp moving then */ |
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315 if (j->t_turns > 0) |
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316 { /* if torp can turn then */ |
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317 turn = torp_track_opportunity |
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318 (&j->t_base, j->t_turns, |
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319 configvals->improved_tracking[SS_PHOTON]); |
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320 /* should we go right or left */ |
| 9 | 321 |
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322 if ((terrain_grid[(int) (j->t_x) / TGRID_GRANULARITY * TGRID_SIZE + |
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323 (int) (j->t_y) / TGRID_GRANULARITY].types |
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324 & T_NEBULA) && neb_effect[SS_PHOTON]) |
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325 if(TORP_NEB_EFF > (lrand48() % 100)) /* Is torp affected? */ |
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326 turn = (lrand48() % 2); /* Yes */ |
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327 |
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328 if (turn < 0) |
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329 { /* we will go left */ |
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330 heading = ((int) j->t_dir) - j->t_turns; /* turn left */ |
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331 if (heading < 0) |
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332 j->t_dir = heading + 256; |
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333 /* |
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334 * j->t_dir = ((heading < 0) ? ((unsigned char) (256 + heading)) : |
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335 * ((unsigned char) heading)); * no underflow |
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336 */ |
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337 } |
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338 else if (turn > 0) |
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339 { /* we will go right */ |
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340 heading = ((int) j->t_dir) + j->t_turns; /* turn right */ |
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341 if (heading > 255) |
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342 j->t_dir = heading - 256; |
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343 /* |
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344 * j->t_dir = ((heading > 255) ? ((unsigned char) (heading - 256)) |
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345 * : ((unsigned char) heading)); * no overflow |
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346 */ |
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347 } |
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348 } |
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349 j->t_x += (double) j->t_speed * Cos[j->t_dir] * WARP1; |
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350 j->t_y += (double) j->t_speed * Sin[j->t_dir] * WARP1; |
| 9 | 351 |
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352 move_torp(i, j->t_x, j->t_y, 1); |
| 9 | 353 |
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354 if (j->t_status == TMOVE) /* if a TMOVE torp then */ |
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355 j->t_dir += (lrand48() % 3) - 1; /* make the torp wobble */ |
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356 if (j->t_fuse-- <= 0) |
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357 { /* dec torp's life and see if dead */ |
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358 j->t_status = TFREE; /* dead, free the torp */ |
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359 move_torp(i, -1, -1, 1); |
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360 players[j->t_owner].p_ntorp--; /* let player fire another */ |
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361 break; /* no more torp processing */ |
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362 } |
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363 if ((sun_effect[SS_PHOTON] && weap_near_object(&j->t_base, PLSTAR, ORBDIST)) |
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364 || |
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365 (wh_effect[SS_PHOTON] && weap_near_object(&j->t_base, PLWHOLE, ORBDIST))) |
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366 { |
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367 /* did it hit a star or wormhole? */ |
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368 j->t_whodet = j->t_owner; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
369 explode(&j->t_base); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
370 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
371 } |
| 9 | 372 |
|
13
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
373 if ((terrain_grid[(int) (j->t_x) / TGRID_GRANULARITY * TGRID_SIZE + |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
374 (int) (j->t_y) / TGRID_GRANULARITY].types |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
375 & T_ASTEROIDS) && ast_effect[SS_PHOTON]) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
376 if (TORP_HIT_AST > (lrand48() % 100)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
377 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
378 explode(&j->t_base); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
379 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
380 } |
| 9 | 381 |
|
13
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
382 if (near_player(&j->t_base, EXPDIST)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
383 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
384 /* if torp near enough to hit */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
385 explode(&j->t_base); /* let torp explode on player */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
386 } |
| 9 | 387 |
|
13
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
388 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
389 case TDET: /* if torp was detted */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
390 explode(&j->t_base); /* make it explode */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
391 break; /* on to next torp */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
392 case TEXPLODE: /* if torp exploding */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
393 if (j->t_fuse-- <= 0) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
394 { /* dec explosion timer */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
395 j->t_status = TFREE; /* if torp done, free it up */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
396 move_torp(i, -1, -1, 1); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
397 players[j->t_owner].p_ntorp--; /* let player fire another */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
398 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
399 break; /* on to next torp */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
400 case TOFF: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
401 j->t_status = TFREE; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
402 move_torp(i, -1, -1, 1); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
403 players[j->t_owner].p_ntorp--; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
404 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
405 default: /* Shouldn't happen */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
406 j->t_status = TFREE; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
407 break; |
| 9 | 408 } /* end of switch */ |
| 409 } /* end of for */ | |
| 410 } | |
| 411 | |
| 412 void | |
| 413 udmissiles() | |
| 414 { | |
| 415 int i; | |
| 416 int x, y, turn; | |
| 417 struct missile *mis; | |
| 418 struct player *j; | |
| 419 | |
| 420 for (i = 0; i < MAXPLAYER * NPTHINGIES; i++) | |
| 421 { | |
| 422 mis = &missiles[i]; | |
| 423 switch (mis->ms_status) | |
| 424 { | |
|
13
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
425 case TFREE: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
426 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
427 case TLAND: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
428 j = &players[mis->ms_owner]; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
429 j->p_ship.s_missilestored++; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
430 j->p_armies = (int) (j->p_ship.s_missilestored / FAE_RATE); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
431 mis->ms_status = TFREE; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
432 j->p_nthingys--; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
433 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
434 case TRETURN: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
435 case TMOVE: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
436 case TSTRAIGHT: |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
437 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
438 if (mis->ms_fuse-- <= 0) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
439 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
440 mis->ms_status = TFREE; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
441 move_missile(i, -1, -1, 1); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
442 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
443 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
444 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
445 if (terrain_grid[(int) (mis->ms_x) / TGRID_GRANULARITY * TGRID_SIZE + |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
446 (int) (mis->ms_y) / TGRID_GRANULARITY].types |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
447 & T_ASTEROIDS) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
448 if ((mis->ms_type == FIGHTERTHINGY) && |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
449 ast_effect[SS_FIGHTER] && |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
450 (FIGHTER_HIT_AST > (lrand48() % 100))) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
451 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
452 mis->ms_whodet = mis->ms_owner; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
453 explode(&mis->ms_base); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
454 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
455 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
456 else if ((MISSILE_HIT_AST > (lrand48() % 100)) && |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
457 ast_effect[SS_MISSILE]) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
458 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
459 mis->ms_whodet = mis->ms_owner; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
460 explode(&mis->ms_base); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
461 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
462 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
463 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
464 if ((((sun_effect[SS_MISSILE] && mis->ms_type == MISSILETHINGY) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
465 || (sun_effect[SS_FIGHTER] && mis->ms_type == FIGHTERTHINGY)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
466 && weap_near_object(&mis->ms_base, PLSTAR, ORBDIST)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
467 || |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
468 (((wh_effect[SS_MISSILE] && mis->ms_type == MISSILETHINGY) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
469 || (wh_effect[SS_FIGHTER] && mis->ms_type == FIGHTERTHINGY)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
470 && weap_near_object(&mis->ms_base, PLWHOLE, ORBDIST))) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
471 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
472 /* did it hit a star? */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
473 explode(&mis->ms_base); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
474 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
475 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
476 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
477 j = &players[mis->ms_owner]; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
478 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
479 if (mis->ms_type == FIGHTERTHINGY && |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
480 !(j->p_ship.s_nflags & SFNHASFIGHTERS)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
481 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
482 mis->ms_type = MISSILETHINGY; /* If the player no longer has em, */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
483 mis->ms_status = TMOVE; /* make his fighters kamikazes */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
484 mis->fi_hasfired = 0; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
485 break; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
486 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
487 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
488 if ((mis->ms_type == FIGHTERTHINGY) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
489 && ((mis->ms_fuse < .6 * j->p_ship.s_missile.fuse) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
490 || (mis->fi_hasfired)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
491 && mis->ms_status != TRETURN) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
492 mis->ms_status = TRETURN; |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
493 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
494 if (mis->ms_turns > 0) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
495 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
496 if (mis->ms_type == FIGHTERTHINGY) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
497 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
498 turn = fighter_track_target(&mis->ms_base, mis->ms_turns); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
499 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
500 else |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
501 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
502 turn = torp_track_opportunity |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
503 (&mis->ms_base, mis->ms_turns, |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
504 configvals->improved_tracking[SS_MISSILE]); |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
505 } |
| 9 | 506 |
|
13
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
507 if ((terrain_grid[(int) (mis->ms_x) / TGRID_GRANULARITY * TGRID_SIZE + |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
508 (int) (mis->ms_y) / TGRID_GRANULARITY].types |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
509 & T_NEBULA)) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
510 |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
511 if((mis->ms_type == FIGHTERTHINGY) && neb_effect[SS_FIGHTER]) |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
512 { |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
513 if(FIGHTER_NEB_EFF > (lrand48() % 100)) /* Is fighter affected? */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
514 turn = (lrand48() % 2); /* Yes */ |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
515 } |
|
ed82a42ba89d
Added code to cause missiles, fighters and plasmas to get confused in
darius
parents:
9
diff
changeset
|
516 else |
|
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darius
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diff
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|
517 if(neb_effect[SS_MISSILE]) |
|
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darius
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9
diff
changeset
|
518 if(MISSILE_NEB_EFF > (lrand48() % 100)) /* Is missile affected? */ |
|
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Added code to cause missiles, fighters and plasmas to get confused in
darius
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9
diff
changeset
|
519 turn = (lrand48() % 2); /* Yes */ |
|
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darius
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9
diff
changeset
|
520 |
| 9 | 521 |
|
13
ed82a42ba89d
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darius
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|
522 mis->ms_dir = (unsigned char) (mis->ms_dir + turn * mis->ms_turns); |
|
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darius
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9
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changeset
|
523 } |
|
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darius
parents:
9
diff
changeset
|
524 x = mis->ms_x + mis->ms_speed * Cos[mis->ms_dir] * WARP1; |
|
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darius
parents:
9
diff
changeset
|
525 y = mis->ms_y + mis->ms_speed * Sin[mis->ms_dir] * WARP1; |
|
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changeset
|
526 |
|
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darius
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|
527 move_missile(i, x, y, 1); |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
528 |
|
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darius
parents:
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diff
changeset
|
529 if (mis->ms_status != TSTRAIGHT) |
|
ed82a42ba89d
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darius
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diff
changeset
|
530 mis->ms_dir += (lrand48() % 3) - 1; |
|
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darius
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9
diff
changeset
|
531 |
|
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darius
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changeset
|
532 if (mis->ms_type == MISSILETHINGY |
|
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darius
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9
diff
changeset
|
533 && near_player(&mis->ms_base, EXPDIST)) |
|
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darius
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9
diff
changeset
|
534 { |
|
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darius
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9
diff
changeset
|
535 explode(&mis->ms_base); |
|
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darius
parents:
9
diff
changeset
|
536 } |
|
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darius
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|
537 else if (mis->ms_type == FIGHTERTHINGY |
|
ed82a42ba89d
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darius
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changeset
|
538 && near_player(&mis->ms_base, FSTRIKEDIST) |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
539 && !mis->fi_hasfired) |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
540 { |
|
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darius
parents:
9
diff
changeset
|
541 if (f_torp(mis)) |
|
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darius
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|
542 mis->fi_hasfired = 1; /* if within strike range, fire a torp */ |
|
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darius
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|
543 } |
|
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darius
parents:
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diff
changeset
|
544 |
|
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darius
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changeset
|
545 if (mis->ms_status == TRETURN && |
|
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darius
parents:
9
diff
changeset
|
546 f_land(mis)) |
|
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darius
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9
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changeset
|
547 { |
|
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darius
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|
548 mis->ms_status = TLAND; |
|
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darius
parents:
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diff
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|
549 move_missile(i, -1, -1, 1); |
|
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darius
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changeset
|
550 } |
|
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darius
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changeset
|
551 |
|
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darius
parents:
9
diff
changeset
|
552 break; |
|
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darius
parents:
9
diff
changeset
|
553 |
|
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darius
parents:
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diff
changeset
|
554 case TDET: |
|
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darius
parents:
9
diff
changeset
|
555 explode(&mis->ms_base); |
|
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darius
parents:
9
diff
changeset
|
556 break; |
|
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darius
parents:
9
diff
changeset
|
557 |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
558 case TEXPLODE: |
|
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darius
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9
diff
changeset
|
559 if (mis->ms_fuse-- <= 0) |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
560 { |
|
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darius
parents:
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diff
changeset
|
561 mis->ms_status = TFREE; |
|
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darius
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9
diff
changeset
|
562 players[mis->ms_owner].p_nthingys--; |
|
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9
diff
changeset
|
563 move_missile(i, -1, -1, 1); |
|
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darius
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9
diff
changeset
|
564 } |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
565 break; |
|
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darius
parents:
9
diff
changeset
|
566 default: |
|
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darius
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diff
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|
567 mis->ms_status = TFREE; |
|
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darius
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9
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|
568 break; |
| 9 | 569 } |
| 570 } | |
| 571 } | |
| 572 | |
| 573 int | |
| 574 anticipate_impact(w, dx, dy, s, dir) | |
| 575 int w; /* speed of torp */ | |
| 576 int dx, dy; /* distance to target */ | |
| 577 int s, dir; /* speed of target */ | |
| 578 { | |
| 579 float sdx, sdy; | |
| 580 float a, b, c, d; | |
| 581 float t; | |
| 582 float tdx, tdy; | |
| 583 float theta; | |
| 584 | |
|
13
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diff
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|
585 /* mathematically, these affect t, but not |
| 9 | 586 * the return value */ |
| 587 s *= WARP1 * TICKSPERSEC; | |
| 588 w *= WARP1 * TICKSPERSEC; | |
| 589 | |
| 590 sdx = s * Cos[dir]; | |
| 591 sdy = s * Sin[dir]; | |
| 592 | |
| 593 a = s * (float) s - w * (float) w; | |
| 594 b = 2 * (sdx * (float) dx + sdy * (float) dy); | |
| 595 c = dx * (float) dx + dy * (float) dy; | |
| 596 | |
| 597 if (a == 0) | |
| 598 { | |
| 599 t = -c / b; | |
| 600 } | |
| 601 else | |
| 602 { | |
| 603 | |
| 604 d = b * b - 4 * a * c; | |
| 605 if (d < 0) | |
| 606 return -1; | |
| 607 d = sqrt(d); | |
| 608 | |
| 609 if (a < 0) | |
| 610 { | |
| 611 a = -a; | |
| 612 b = -b; | |
| 613 } | |
| 614 | |
| 615 t = (-b - d) / (2 * a); | |
| 616 | |
| 617 if (t < 0) | |
| 618 t = (-b + d) / (2 * a); | |
| 619 } | |
| 620 | |
| 621 if (t < 0) | |
| 622 return -1; | |
| 623 | |
| 624 if (t > 10) | |
| 625 return -1; | |
| 626 | |
| 627 tdx = dx / t + sdx; | |
| 628 tdy = dy / t + sdy; | |
| 629 | |
| 630 theta = atan2(tdx, -tdy); | |
| 631 return (unsigned char) (int) (theta * 128 / 3.14159); | |
| 632 } | |
| 633 | |
| 634 /*----------------------------TORP_TRACK_OPPORTUNITY----------------------*/ | |
| 635 /* | |
| 636 * This function finds the closest ship to a torp and returns -1 if the ship | |
| 637 * is to the left of the torp on its current heading and a 1 if the ship is | |
| 638 * to the right. If no target is found then a 0 is return indicating the | |
| 639 * torp should go straight. | |
| 640 */ | |
| 641 | |
| 642 int | |
| 643 torp_track_opportunity(torp, turnspeed, smart) | |
| 644 struct basetorp *torp; /* the torp to check for */ | |
| 645 int turnspeed; | |
| 646 int smart; /* which tracking algorithm? */ | |
| 647 { | |
| 648 int i; /* looping var */ | |
| 649 int closest; /* to hold closest player */ | |
| 650 int clbearing; /* bearing to closest player */ | |
| 651 int min_distsq; /* to hold closest distance */ | |
| 652 int war_mask; /* who torp own is at war with */ | |
| 653 int x, y; /* to hold torps x, y coords */ | |
| 654 int bearing; /* to get bearing to hit player */ | |
| 655 int dir; /* to hold torps direction */ | |
| 656 int range; | |
| 657 | |
| 658 closest = -1; /* initialize closest player--no plyr */ | |
| 659 x = torp->bt_x; /* get the coords of torp */ | |
| 660 y = torp->bt_y; | |
| 661 dir = torp->bt_dir; /* get torp's directions */ | |
| 662 war_mask = torp->bt_war; /* and who he as war with */ | |
| 663 | |
| 664 range = torp->bt_fuse * torp->bt_speed * WARP1; | |
| 665 | |
| 666 min_distsq = range * range * 4; /* intialize closest player distance */ | |
| 667 | |
| 668 for (i = 0; i < MAXPLAYER; i++) | |
| 669 { /* check all other players */ | |
| 670 int dx, dy; | |
| 671 if (!(isAlive(&players[i]) && | |
| 672 hostile_to(war_mask, torp->bt_team, &players[i]))) | |
| 673 continue; /* only do if player alive and at war */ | |
| 674 | |
| 675 dx = players[i].p_x - x; | |
| 676 dy = players[i].p_y - y; | |
| 677 | |
| 678 if (ABS(dx) > range || ABS(dy) > range) | |
| 679 continue; /* clearly out of range */ | |
| 680 | |
| 681 if (smart) | |
| 682 { | |
| 683 bearing = anticipate_impact(torp->bt_speed, dx, dy, | |
| 684 players[i].p_speed, players[i].p_dir); | |
| 685 if (bearing < 0) | |
| 686 bearing = get_bearing(dx, dy, dir); | |
| 687 else | |
| 688 bearing = (unsigned char) (bearing - dir); | |
| 689 } | |
| 690 else | |
| 691 { | |
| 692 bearing = get_bearing(dx, dy, dir); | |
| 693 } | |
| 694 /* torps will only track to targets they have a reasonable chance */ | |
| 695 /* of hitting */ | |
| 696 if ((turnspeed * torp->bt_fuse > 127) || | |
| 697 (bearing < ((unsigned char) turnspeed * torp->bt_fuse)) || | |
| 698 (bearing > ((unsigned char) (256 - turnspeed * torp->bt_fuse)))) | |
| 699 { | |
| 700 int distsq; | |
| 701 distsq = dx * dx + dy * dy; | |
| 702 if (distsq < min_distsq) | |
| 703 { /* record it if it is */ | |
| 704 min_distsq = distsq; /* less than current closest */ | |
| 705 closest = i; /* player */ | |
| 706 clbearing = bearing; | |
| 707 } | |
| 708 } | |
| 709 } | |
| 710 if (closest >= 0) | |
| 711 { /* if a target found then */ | |
| 712 if (clbearing > 128) | |
| 713 return (-1); /* Target is on the left */ | |
| 714 else | |
| 715 return (1); /* Target is on the right */ | |
| 716 } | |
| 717 return (0); /* No target ... go straight. */ | |
| 718 } | |
| 719 | |
| 720 | |
| 721 | |
| 722 | |
| 723 /*------------------------------UDPLASMATORPS-----------------------------*/ | |
| 724 /* | |
| 725 * This function updates the plasma torps. It goes through all the plasma | |
| 726 * torps and if they are alive it adjusts their heading to track players. It | |
| 727 * then moves the plasma torp and checks to see if the plasma should explode. | |
| 728 * It will ensure that a plasma torp explodes when it hits the edge of the | |
| 729 * galaxy. | |
| 730 */ | |
| 731 | |
| 732 void | |
| 733 udplasmatorps() | |
| 734 { | |
| 735 register int i; /* looping var--loop through plasmas */ | |
| 736 int turn; /* to get whether to go left or right */ | |
| 737 int heading; /* to hold plasma heading */ | |
| 738 struct plasmatorp *j; /* to point to a plasma */ | |
| 739 | |
| 740 for (i = 0, j = &plasmatorps[i]; i < MAXPLAYER * MAXPLASMA; i++, j++) | |
| 741 { | |
| 742 switch (j->pt_status) | |
| 743 { /* check torp's status */ | |
|
13
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
744 case PTFREE: /* if plasma not being fired */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
745 continue; /* go to next plasma */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
746 case PTMOVE: /* if plasma moving */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
747 turn = torp_track_opportunity |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
748 (&j->pt_base, j->pt_turns, |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
749 configvals->improved_tracking[SS_PLASMA]); |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
750 |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
751 if ((terrain_grid[(int) (j->pt_x) / TGRID_GRANULARITY * TGRID_SIZE + |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
752 (int) (j->pt_y) / TGRID_GRANULARITY].types |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
753 & T_NEBULA) && neb_effect[SS_PLASMA]) |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
754 if(PLASMA_NEB_EFF > (lrand48() % 100)) /* Is plasma affected? */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
755 turn = (lrand48() % 2); /* Yes */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
756 |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
757 /* should we go right or left */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
758 if (turn < 0) |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
759 { /* if left then */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
760 heading = ((int) j->pt_dir) - j->pt_turns; |
|
ed82a42ba89d
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darius
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9
diff
changeset
|
761 j->pt_dir = ((heading < 0) ? ((unsigned char) (256 + heading)) : |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
762 ((unsigned char) heading)); /* no rollunder */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
763 } |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
764 else if (turn > 0) |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
765 { /* else if right */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
766 heading = ((int) j->pt_dir) + j->pt_turns; |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
767 j->pt_dir = ((heading > 255) ? ((unsigned char) (heading - 256)) : |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
768 ((unsigned char) heading)); /* no rollover */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
769 } |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
770 j->pt_x += (double) j->pt_speed * Cos[j->pt_dir] * WARP1; |
| 9 | 771 |
|
13
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darius
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9
diff
changeset
|
772 j->pt_y += (double) j->pt_speed * Sin[j->pt_dir] * WARP1; |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
773 if (j->pt_fuse-- <= 0) |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
774 { /* dec the torp fuse. if torp done */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
775 j->pt_status = PTFREE; /* free it up */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
776 players[j->pt_owner].p_nplasmatorp--; /* dec p-torps fired */ |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
777 break; |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
778 } |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
779 |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
780 if ((terrain_grid[(int) (j->pt_x) / TGRID_GRANULARITY * TGRID_SIZE + |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
781 (int) (j->pt_y) / TGRID_GRANULARITY].types |
|
ed82a42ba89d
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darius
parents:
9
diff
changeset
|
782 & T_ASTEROIDS) && |
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783 ast_effect[SS_PLASMA]) |
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784 if (PLASMA_HIT_AST > (lrand48() % 100)) |
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785 { |
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786 pexplode(j); |
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787 break; |
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788 } |
| 9 | 789 |
|
13
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790 if ((sun_effect[SS_PLASMA] && weap_near_object(&j->pt_base, PLSTAR, ORBDIST)) |
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791 || |
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792 (sun_effect[SS_PLASMA] && weap_near_object(&j->pt_base, PLWHOLE, ORBDIST)) |
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diff
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793 /* did it hit a star? */ |
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diff
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794 || pnear(j) /* or a player */ ) |
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795 { |
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diff
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796 pexplode(j); |
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797 } |
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798 break; /* on to next torp */ |
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|
799 case PTDET: /* if torp was detted */ |
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800 pexplode(j); /* make it explode */ |
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801 break; /* on to next torp */ |
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802 case PTEXPLODE: /* if torp is exploding */ |
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803 if (j->pt_fuse-- <= 0) |
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804 { /* dec the timer until torp dead */ |
|
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805 j->pt_status = PTFREE; /* set the torp free is timer zero */ |
|
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806 players[j->pt_owner].p_nplasmatorp--; /* dec ptorps fired by player */ |
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|
807 } |
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808 break; |
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|
809 default: /* Shouldn't happen */ |
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|
810 j->pt_status = PTFREE; /* free torp if it got screwed */ |
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811 break; /* on to next torp */ |
| 9 | 812 } |
| 813 } | |
| 814 } | |
| 815 | |
| 816 | |
| 817 | |
| 818 /*--------------------------------GET_BEARING------------------------------*/ | |
| 819 /* | |
| 820 * This function takes two set of coordinates and a direction. One set of | |
| 821 * coordinates is the current coords of a trop. The other set is some other | |
| 822 * coords you want to get a change in direction for. The direction is the | |
| 823 * current direction of the torp. The function returns the angle that the | |
| 824 * dir need to be changed by to travel to the new points. | |
| 825 */ | |
| 826 | |
| 827 unsigned char | |
| 828 get_bearing(dx, dy, dir) | |
| 829 int dx, dy; /* delta x, y coords */ | |
| 830 int dir; /* current direction travelling */ | |
| 831 { | |
| 832 int phi; /* to hold angle */ | |
| 833 | |
| 834 phi = (int) (atan2((double) dx, (double) -dy) / 3.14159 * 128.0); | |
| 835 if (phi < 0) /* make phi positive */ | |
| 836 phi = 256 + phi; | |
| 837 if (phi >= dir) | |
| 838 return ((unsigned char) (phi - dir)); | |
| 839 else | |
| 840 return ((unsigned char) (256 + phi - dir)); | |
| 841 } | |
| 842 | |
| 843 /*------------------------------------------------------------------------*/ | |
| 844 | |
| 845 | |
| 846 | |
| 847 | |
| 848 /*------------------------------------------------------------------------*/ | |
| 849 /*--------------------------FIGHTER_TRACK_TARGET--------------------------*/ | |
| 850 /* | |
| 851 * This function finds the closest ship to a fighter and returns -1 if the | |
| 852 * ship is to the left of the fighter on its current heading and a 1 if the | |
| 853 * ship is to the right. If no target is found then a 0 is return indicating | |
| 854 * the fighter should go straight. Also returns fighters to the CV. If the | |
| 855 * player is locked onto an enemy ship, that's the only ship that gets | |
| 856 * checked. | |
| 857 */ | |
| 858 | |
| 859 int | |
| 860 fighter_track_target(mis, turnspeed) | |
| 861 struct missile *mis; /* the torp to check for */ | |
| 862 int turnspeed; | |
| 863 { | |
| 864 int i; /* looping var */ | |
| 865 int closest; /* to hold closest player */ | |
| 866 int min_dist; /* to hold closest distance */ | |
| 867 int dist; /* temp var to hold distance */ | |
| 868 int war_mask; /* who fighter own is at war with */ | |
| 869 int x, y; /* to hold fighters x, y coords */ | |
| 870 int owner; /* to hold fighters owner */ | |
| 871 int bearing; /* to get bearing to hit player */ | |
| 872 int dir; /* to hold fighters direction */ | |
| 873 int range; | |
| 874 int dx, dy; | |
| 875 | |
| 876 min_dist = GWIDTH * 2; /* intialize closest player distance */ | |
| 877 closest = -1; /* initialize closest player--no plyr */ | |
| 878 x = mis->ms_x; /* get the coords of torp */ | |
| 879 y = mis->ms_y; | |
| 880 dir = mis->ms_dir; /* get fighter's directions */ | |
| 881 owner = mis->ms_owner; /* get the fighter's owner */ | |
| 882 war_mask = mis->ms_war; /* and who he as war with */ | |
| 883 | |
| 884 range = mis->ms_fuse * mis->ms_speed * WARP1; | |
| 885 | |
| 886 for (i = 0; i < MAXPLAYER; i++) | |
| 887 { /* check all other players */ | |
| 888 if (mis->ms_status == TRETURN) | |
| 889 { | |
| 890 if (!(isAlive(&players[i])) || (owner != i)) | |
| 891 continue; | |
| 892 } /* if returning, only check owning player */ | |
| 893 else if ((players[owner].p_flags & PFPLOCK) && | |
| 894 (players[owner].p_playerl != i)) | |
| 895 continue; /* if player is locked onto a player, only | |
| 896 * check that player */ | |
| 897 else if (!(isAlive(&players[i]) && | |
| 898 hostile_to(war_mask, mis->ms_team, &players[i]))) | |
| 899 continue; /* only do if player alive and at war */ | |
| 900 | |
| 901 dx = players[i].p_x - x; | |
| 902 dy = players[i].p_y - y; | |
| 903 | |
| 904 if (ABS(dx) > range || ABS(dy) > range) | |
| 905 continue; /* clearly out of range */ | |
| 906 | |
| 907 bearing = get_bearing(dx, dy, dir); | |
| 908 if ((turnspeed * mis->ms_fuse > 127) || | |
| 909 (bearing < ((unsigned char) turnspeed * mis->ms_fuse)) || | |
| 910 (bearing > ((unsigned char) (256 - turnspeed * mis->ms_fuse)))) | |
| 911 { | |
| 912 dist = ihypot(dx, dy); | |
| 913 if (dist < min_dist) | |
| 914 { /* record it if it is */ | |
| 915 min_dist = dist; /* less than current closest */ | |
| 916 closest = i; /* player */ | |
| 917 } | |
| 918 } | |
| 919 } | |
| 920 if (closest >= 0) | |
| 921 { /* if a target found then */ | |
| 922 if (get_bearing(players[closest].p_x - x, | |
| 923 players[closest].p_y - y, dir) > 128) | |
| 924 { | |
| 925 return (-1); /* Target is on the left */ | |
| 926 } | |
| 927 else | |
| 928 return (1); /* Target is on the right */ | |
| 929 } | |
| 930 return (0); /* No target ... go straight. */ | |
| 931 } | |
| 932 | |
| 933 | |
| 934 /*--------------------------------------------------------------------------*/ | |
| 935 /*------------------------------------F_TORP--------------------------------*/ | |
| 936 /* Checks to see if a valid target is within a certain forward firing angle */ | |
| 937 /* then fires a torpedo at that target. A return value of 1 indicates firing */ | |
| 938 | |
| 939 int | |
| 940 f_torp(mis) | |
| 941 struct missile *mis; | |
| 942 { | |
| 943 register int i; | |
| 944 int torp2fire = -1, targetdist = FSTRIKEDIST + 1, tdist, target; | |
| 945 unsigned char bearing; | |
| 946 register struct torp *k; | |
| 947 int dx, dy; | |
| 948 register struct player *j; /* to point to players */ | |
| 949 | |
| 950 for (i = mis->ms_owner * MAXTORP, k = &torps[i]; /* Find a free torp */ | |
| 951 i < mis->ms_owner * MAXTORP + MAXTORP; i++, k++) | |
| 952 if (k->t_status == TFREE) | |
| 953 { | |
| 954 torp2fire = i; | |
| 955 break; | |
| 956 } | |
| 957 if (torp2fire == -1) | |
| 958 return 0; | |
| 959 | |
| 960 | |
| 961 for (i = 0, j = &players[i]; i < MAXPLAYER; i++, j++) | |
| 962 { | |
| 963 if (j->p_status != PALIVE) | |
| 964 continue; /* don't check players not alive */ | |
| 965 if (j->p_no == mis->ms_owner) | |
| 966 continue; /* no firing on self */ | |
| 967 if (!hostile_to(mis->ms_war, mis->ms_team, j)) | |
| 968 continue; /* disregard if both teams not at war */ | |
| 969 if ((players[mis->ms_owner].p_flags & PFPLOCK) && | |
| 970 (players[mis->ms_owner].p_playerl != i)) | |
| 971 continue; /* ignore if this isn't the target */ | |
| 972 | |
| 973 dx = mis->ms_x - j->p_x; /* calc delta coords */ | |
| 974 dy = mis->ms_y - j->p_y; | |
| 975 if (ABS(dx) > FSTRIKEDIST || ABS(dy) > FSTRIKEDIST) | |
| 976 continue; /* disregard if obviously too far */ | |
| 977 | |
| 978 tdist = ihypot(dx, dy); | |
| 979 if (tdist < FSTRIKEDIST) | |
| 980 { | |
| 981 bearing = (int) get_bearing(dx, dy, mis->ms_dir); | |
| 982 targetdist = tdist; /* record the target ship */ | |
| 983 target = i; | |
| 984 } | |
| 985 } | |
| 986 | |
| 987 if (targetdist < FSTRIKEDIST) | |
| 988 { | |
| 989 j = &players[mis->ms_owner]; | |
| 990 k = &torps[torp2fire]; | |
| 991 k->t_no = torp2fire; | |
| 992 k->t_status = TMOVE; | |
| 993 k->t_owner = mis->ms_owner; | |
| 994 k->t_team = mis->ms_team; | |
| 995 | |
| 996 move_torp(torp2fire, mis->ms_x, mis->ms_y, 0); | |
| 997 | |
| 998 k->t_damage = FTORP_DAMAGE; | |
| 999 k->t_speed = FTORP_SPEED; | |
| 1000 k->t_war = j->p_hostile | | |
| 1001 j->p_swar; | |
| 1002 k->t_fuse = FTORP_FUSE + (lrand48() % 20); | |
| 1003 k->t_turns = FTORP_TRACK; | |
| 1004 | |
| 1005 /* | |
| 1006 * here's the biggie -- what angle do I fire this torp at, so I have a | |
| 1007 * reasonable chance of hitting? Especially since I only get one shot. | |
| 1008 * But, then, I have a bunch of buddies, too... | |
| 1009 */ | |
| 1010 | |
| 1011 if ((mis->ms_no % MAXPLAYER % 3) == 0) | |
| 1012 k->t_dir = mis->ms_dir; | |
| 1013 else if ((mis->ms_no % MAXPLAYER % 3) == 1) | |
| 1014 k->t_dir = mis->ms_dir - 8; | |
| 1015 else if ((mis->ms_no % MAXPLAYER % 3) == 2) | |
| 1016 k->t_dir = mis->ms_dir + 8; | |
| 1017 return 1; | |
| 1018 } | |
| 1019 return 0; | |
| 1020 } | |
| 1021 | |
| 1022 | |
| 1023 /*----------END OF FILE--------*/ |