diff options
Diffstat (limited to 'source/baseq2/g_turret.c')
| -rw-r--r-- | source/baseq2/g_turret.c | 432 |
1 files changed, 432 insertions, 0 deletions
diff --git a/source/baseq2/g_turret.c b/source/baseq2/g_turret.c new file mode 100644 index 0000000..cd3c3a9 --- /dev/null +++ b/source/baseq2/g_turret.c @@ -0,0 +1,432 @@ +/* +Copyright (C) 1997-2001 Id Software, Inc. + +This program 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; either version 2 +of the License, or (at your option) any later version. + +This program 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. + +See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ +// g_turret.c + +#include "g_local.h" + + +void AnglesNormalize(vec3_t vec) +{ + while(vec[0] > 360) + vec[0] -= 360; + while(vec[0] < 0) + vec[0] += 360; + while(vec[1] > 360) + vec[1] -= 360; + while(vec[1] < 0) + vec[1] += 360; +} + +float SnapToEights(float x) +{ + x *= 8.0; + if (x > 0.0) + x += 0.5; + else + x -= 0.5; + return 0.125 * (int)x; +} + + +void turret_blocked(edict_t *self, edict_t *other) +{ + edict_t *attacker; + + if (other->takedamage) + { + if (self->teammaster->owner) + attacker = self->teammaster->owner; + else + attacker = self->teammaster; + T_Damage (other, self, attacker, vec3_origin, other->s.origin, vec3_origin, self->teammaster->dmg, 10, 0, MOD_CRUSH); + } +} + +/*QUAKED turret_breach (0 0 0) ? +This portion of the turret can change both pitch and yaw. +The model should be made with a flat pitch. +It (and the associated base) need to be oriented towards 0. +Use "angle" to set the starting angle. + +"speed" default 50 +"dmg" default 10 +"angle" point this forward +"target" point this at an info_notnull at the muzzle tip +"minpitch" min acceptable pitch angle : default -30 +"maxpitch" max acceptable pitch angle : default 30 +"minyaw" min acceptable yaw angle : default 0 +"maxyaw" max acceptable yaw angle : default 360 +*/ + +void turret_breach_fire (edict_t *self) +{ + vec3_t f, r, u; + vec3_t start; + int damage; + int speed; + + AngleVectors (self->s.angles, f, r, u); + VectorMA (self->s.origin, self->move_origin[0], f, start); + VectorMA (start, self->move_origin[1], r, start); + VectorMA (start, self->move_origin[2], u, start); + + damage = 100 + random() * 50; + speed = 550 + 50 * skill->value; + fire_rocket (self->teammaster->owner, start, f, damage, speed, 150, damage); + gi.positioned_sound (start, self, CHAN_WEAPON, gi.soundindex("weapons/rocklf1a.wav"), 1, ATTN_NORM, 0); +} + +void turret_breach_think (edict_t *self) +{ + edict_t *ent; + vec3_t current_angles; + vec3_t delta; + + VectorCopy (self->s.angles, current_angles); + AnglesNormalize(current_angles); + + AnglesNormalize(self->move_angles); + if (self->move_angles[PITCH] > 180) + self->move_angles[PITCH] -= 360; + + // clamp angles to mins & maxs + if (self->move_angles[PITCH] > self->pos1[PITCH]) + self->move_angles[PITCH] = self->pos1[PITCH]; + else if (self->move_angles[PITCH] < self->pos2[PITCH]) + self->move_angles[PITCH] = self->pos2[PITCH]; + + if ((self->move_angles[YAW] < self->pos1[YAW]) || (self->move_angles[YAW] > self->pos2[YAW])) + { + float dmin, dmax; + + dmin = fabs(self->pos1[YAW] - self->move_angles[YAW]); + if (dmin < -180) + dmin += 360; + else if (dmin > 180) + dmin -= 360; + dmax = fabs(self->pos2[YAW] - self->move_angles[YAW]); + if (dmax < -180) + dmax += 360; + else if (dmax > 180) + dmax -= 360; + if (fabs(dmin) < fabs(dmax)) + self->move_angles[YAW] = self->pos1[YAW]; + else + self->move_angles[YAW] = self->pos2[YAW]; + } + + VectorSubtract (self->move_angles, current_angles, delta); + if (delta[0] < -180) + delta[0] += 360; + else if (delta[0] > 180) + delta[0] -= 360; + if (delta[1] < -180) + delta[1] += 360; + else if (delta[1] > 180) + delta[1] -= 360; + delta[2] = 0; + + if (delta[0] > self->speed * FRAMETIME) + delta[0] = self->speed * FRAMETIME; + if (delta[0] < -1 * self->speed * FRAMETIME) + delta[0] = -1 * self->speed * FRAMETIME; + if (delta[1] > self->speed * FRAMETIME) + delta[1] = self->speed * FRAMETIME; + if (delta[1] < -1 * self->speed * FRAMETIME) + delta[1] = -1 * self->speed * FRAMETIME; + + VectorScale (delta, 1.0/FRAMETIME, self->avelocity); + + self->nextthink = level.time + FRAMETIME; + + for (ent = self->teammaster; ent; ent = ent->teamchain) + ent->avelocity[1] = self->avelocity[1]; + + // if we have adriver, adjust his velocities + if (self->owner) + { + float angle; + float target_z; + float diff; + vec3_t target; + vec3_t dir; + + // angular is easy, just copy ours + self->owner->avelocity[0] = self->avelocity[0]; + self->owner->avelocity[1] = self->avelocity[1]; + + // x & y + angle = self->s.angles[1] + self->owner->move_origin[1]; + angle *= (M_PI*2 / 360); + target[0] = SnapToEights(self->s.origin[0] + cos(angle) * self->owner->move_origin[0]); + target[1] = SnapToEights(self->s.origin[1] + sin(angle) * self->owner->move_origin[0]); + target[2] = self->owner->s.origin[2]; + + VectorSubtract (target, self->owner->s.origin, dir); + self->owner->velocity[0] = dir[0] * 1.0 / FRAMETIME; + self->owner->velocity[1] = dir[1] * 1.0 / FRAMETIME; + + // z + angle = self->s.angles[PITCH] * (M_PI*2 / 360); + target_z = SnapToEights(self->s.origin[2] + self->owner->move_origin[0] * tan(angle) + self->owner->move_origin[2]); + + diff = target_z - self->owner->s.origin[2]; + self->owner->velocity[2] = diff * 1.0 / FRAMETIME; + + if (self->spawnflags & 65536) + { + turret_breach_fire (self); + self->spawnflags &= ~65536; + } + } +} + +void turret_breach_finish_init (edict_t *self) +{ + // get and save info for muzzle location + if (!self->target) + { + gi.dprintf("%s at %s needs a target\n", self->classname, vtos(self->s.origin)); + } + else + { + self->target_ent = G_PickTarget (self->target); + VectorSubtract (self->target_ent->s.origin, self->s.origin, self->move_origin); + G_FreeEdict(self->target_ent); + } + + self->teammaster->dmg = self->dmg; + self->think = turret_breach_think; + self->think (self); +} + +void SP_turret_breach (edict_t *self) +{ + self->solid = SOLID_BSP; + self->movetype = MOVETYPE_PUSH; + gi.setmodel (self, self->model); + + if (!self->speed) + self->speed = 50; + if (!self->dmg) + self->dmg = 10; + + if (!st.minpitch) + st.minpitch = -30; + if (!st.maxpitch) + st.maxpitch = 30; + if (!st.maxyaw) + st.maxyaw = 360; + + self->pos1[PITCH] = -1 * st.minpitch; + self->pos1[YAW] = st.minyaw; + self->pos2[PITCH] = -1 * st.maxpitch; + self->pos2[YAW] = st.maxyaw; + + self->ideal_yaw = self->s.angles[YAW]; + self->move_angles[YAW] = self->ideal_yaw; + + self->blocked = turret_blocked; + + self->think = turret_breach_finish_init; + self->nextthink = level.time + FRAMETIME; + gi.linkentity (self); +} + + +/*QUAKED turret_base (0 0 0) ? +This portion of the turret changes yaw only. +MUST be teamed with a turret_breach. +*/ + +void SP_turret_base (edict_t *self) +{ + self->solid = SOLID_BSP; + self->movetype = MOVETYPE_PUSH; + gi.setmodel (self, self->model); + self->blocked = turret_blocked; + gi.linkentity (self); +} + + +/*QUAKED turret_driver (1 .5 0) (-16 -16 -24) (16 16 32) +Must NOT be on the team with the rest of the turret parts. +Instead it must target the turret_breach. +*/ + +void infantry_die (edict_t *self, edict_t *inflictor, edict_t *attacker, int damage); +void infantry_stand (edict_t *self); +void monster_use (edict_t *self, edict_t *other, edict_t *activator); + +void turret_driver_die (edict_t *self, edict_t *inflictor, edict_t *attacker, int damage, vec3_t point) +{ + edict_t *ent; + + // level the gun + self->target_ent->move_angles[0] = 0; + + // remove the driver from the end of them team chain + for (ent = self->target_ent->teammaster; ent->teamchain != self; ent = ent->teamchain) + ; + ent->teamchain = NULL; + self->teammaster = NULL; + self->flags &= ~FL_TEAMSLAVE; + + self->target_ent->owner = NULL; + self->target_ent->teammaster->owner = NULL; + + infantry_die (self, inflictor, attacker, damage); +} + +qboolean FindTarget (edict_t *self); + +void turret_driver_think (edict_t *self) +{ + vec3_t target; + vec3_t dir; + float reaction_time; + + self->nextthink = level.time + FRAMETIME; + + if (self->enemy && (!self->enemy->inuse || self->enemy->health <= 0)) + self->enemy = NULL; + + if (!self->enemy) + { + if (!FindTarget (self)) + return; + self->monsterinfo.trail_time = level.time; + self->monsterinfo.aiflags &= ~AI_LOST_SIGHT; + } + else + { + if (visible (self, self->enemy)) + { + if (self->monsterinfo.aiflags & AI_LOST_SIGHT) + { + self->monsterinfo.trail_time = level.time; + self->monsterinfo.aiflags &= ~AI_LOST_SIGHT; + } + } + else + { + self->monsterinfo.aiflags |= AI_LOST_SIGHT; + return; + } + } + + // let the turret know where we want it to aim + VectorCopy (self->enemy->s.origin, target); + target[2] += self->enemy->viewheight; + VectorSubtract (target, self->target_ent->s.origin, dir); + vectoangles (dir, self->target_ent->move_angles); + + // decide if we should shoot + if (level.time < self->monsterinfo.attack_finished) + return; + + reaction_time = (3 - skill->value) * 1.0; + if ((level.time - self->monsterinfo.trail_time) < reaction_time) + return; + + self->monsterinfo.attack_finished = level.time + reaction_time + 1.0; + //FIXME how do we really want to pass this along? + self->target_ent->spawnflags |= 65536; +} + +void turret_driver_link (edict_t *self) +{ + vec3_t vec; + edict_t *ent; + + self->think = turret_driver_think; + self->nextthink = level.time + FRAMETIME; + + self->target_ent = G_PickTarget (self->target); + self->target_ent->owner = self; + self->target_ent->teammaster->owner = self; + VectorCopy (self->target_ent->s.angles, self->s.angles); + + vec[0] = self->target_ent->s.origin[0] - self->s.origin[0]; + vec[1] = self->target_ent->s.origin[1] - self->s.origin[1]; + vec[2] = 0; + self->move_origin[0] = VectorLength(vec); + + VectorSubtract (self->s.origin, self->target_ent->s.origin, vec); + vectoangles (vec, vec); + AnglesNormalize(vec); + self->move_origin[1] = vec[1]; + + self->move_origin[2] = self->s.origin[2] - self->target_ent->s.origin[2]; + + // add the driver to the end of them team chain + for (ent = self->target_ent->teammaster; ent->teamchain; ent = ent->teamchain) + ; + ent->teamchain = self; + self->teammaster = self->target_ent->teammaster; + self->flags |= FL_TEAMSLAVE; +} + +void SP_turret_driver (edict_t *self) +{ + if (deathmatch->value) + { + G_FreeEdict (self); + return; + } + + self->movetype = MOVETYPE_PUSH; + self->solid = SOLID_BBOX; + self->s.modelindex = gi.modelindex("models/monsters/infantry/tris.md2"); + VectorSet (self->mins, -16, -16, -24); + VectorSet (self->maxs, 16, 16, 32); + + self->health = 100; + self->gib_health = 0; + self->mass = 200; + self->viewheight = 24; + + self->die = turret_driver_die; + self->monsterinfo.stand = infantry_stand; + + self->flags |= FL_NO_KNOCKBACK; + + level.total_monsters++; + + self->svflags |= SVF_MONSTER; + self->s.renderfx |= RF_FRAMELERP; + self->takedamage = DAMAGE_AIM; + self->use = monster_use; + self->clipmask = MASK_MONSTERSOLID; + VectorCopy (self->s.origin, self->s.old_origin); + self->monsterinfo.aiflags |= AI_STAND_GROUND|AI_DUCKED; + + if (st.item) + { + self->item = FindItemByClassname (st.item); + if (!self->item) + gi.dprintf("%s at %s has bad item: %s\n", self->classname, vtos(self->s.origin), st.item); + } + + self->think = turret_driver_link; + self->nextthink = level.time + FRAMETIME; + + gi.linkentity (self); +} |