diff options
Diffstat (limited to 'source/blender/blenkernel/intern/boids.c')
| -rw-r--r-- | source/blender/blenkernel/intern/boids.c | 106 |
1 files changed, 71 insertions, 35 deletions
diff --git a/source/blender/blenkernel/intern/boids.c b/source/blender/blenkernel/intern/boids.c index b31a283448c..fc3e12accea 100644 --- a/source/blender/blenkernel/intern/boids.c +++ b/source/blender/blenkernel/intern/boids.c @@ -99,7 +99,7 @@ static int rule_goal_avoid(BoidRule *rule, BoidBrainData *bbd, BoidValues *val, pd_point_from_particle(bbd->sim, pa, &pa->state, &epoint); /* first find out goal/predator with highest priority */ - if (effectors) + if (effectors) { for (cur = effectors->first; cur; cur = cur->next) { Object *eob = cur->ob; PartDeflect *pd = cur->pd; @@ -108,11 +108,13 @@ static int rule_goal_avoid(BoidRule *rule, BoidBrainData *bbd, BoidValues *val, if (gabr->ob == eob) { /* TODO: effectors with multiple points */ if (get_effector_data(cur, &efd, &epoint, 0)) { - if (cur->pd && cur->pd->forcefield == PFIELD_BOID) + if (cur->pd && cur->pd->forcefield == PFIELD_BOID) { priority = mul * pd->f_strength * effector_falloff(cur, &efd, &epoint, bbd->part->effector_weights); - else + } + else { priority = 1.0; + } eff = cur; } @@ -144,6 +146,7 @@ static int rule_goal_avoid(BoidRule *rule, BoidBrainData *bbd, BoidValues *val, } } } + } /* if the object doesn't have effector data we have to fake it */ if (eff == NULL && gabr->ob) { @@ -246,8 +249,9 @@ static int rule_avoid_collision(BoidRule *rule, /* find out closest deflector object */ for (coll = bbd->sim->colliders->first; coll; coll = coll->next) { /* don't check with current ground object */ - if (coll->ob == bpa->ground) + if (coll->ob == bpa->ground) { continue; + } col.current = coll->ob; col.md = coll->collmd; @@ -297,7 +301,7 @@ static int rule_avoid_collision(BoidRule *rule, len_v3(pa->prev_state.vel), len_squared_v3v3_with_normal_bias, pa->prev_state.ave); - if (neighbors > 1) + if (neighbors > 1) { for (n = 1; n < neighbors; n++) { copy_v3_v3(co1, pa->prev_state.co); copy_v3_v3(vel1, pa->prev_state.vel); @@ -335,6 +339,7 @@ static int rule_avoid_collision(BoidRule *rule, } } } + } } if (ptn) { MEM_freeN(ptn); @@ -355,7 +360,7 @@ static int rule_avoid_collision(BoidRule *rule, len_squared_v3v3_with_normal_bias, pa->prev_state.ave); - if (neighbors > 0) + if (neighbors > 0) { for (n = 0; n < neighbors; n++) { copy_v3_v3(co1, pa->prev_state.co); copy_v3_v3(vel1, pa->prev_state.vel); @@ -393,6 +398,7 @@ static int rule_avoid_collision(BoidRule *rule, } } } + } if (ptn) { MEM_freeN(ptn); @@ -401,8 +407,9 @@ static int rule_avoid_collision(BoidRule *rule, } } - if (ptn && nearest == 0) + if (ptn && nearest == 0) { MEM_freeN(ptn); + } return ret; } @@ -608,8 +615,9 @@ static int rule_follow_leader(BoidRule *rule, } } - if (ret) + if (ret) { return 1; + } /* not blocking so try to follow leader */ if (flbr->options & BRULE_LEADER_IN_LINE) { @@ -737,10 +745,12 @@ static int rule_fight(BoidRule *rule, BoidBrainData *bbd, BoidValues *val, Parti enemy_pa = epars + ptn[n].index; } } - if (pt->mode == PTARGET_MODE_ENEMY) + if (pt->mode == PTARGET_MODE_ENEMY) { e_strength += epsys->part->boids->strength * health; - else if (pt->mode == PTARGET_MODE_FRIEND) + } + else if (pt->mode == PTARGET_MODE_FRIEND) { f_strength += epsys->part->boids->strength * health; + } if (ptn) { MEM_freeN(ptn); @@ -869,8 +879,9 @@ static Object *boid_find_ground(BoidBrainData *bbd, BVHTreeRayHit hit; float radius = 0.0f, t, ray_dir[3]; - if (!bbd->sim->colliders) + if (!bbd->sim->colliders) { return NULL; + } memset(&col, 0, sizeof(ParticleCollision)); @@ -951,14 +962,18 @@ static int boid_rule_applies(ParticleData *pa, BoidSettings *UNUSED(boids), Boid { BoidParticle *bpa = pa->boid; - if (rule == NULL) + if (rule == NULL) { return 0; + } - if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing) && rule->flag & BOIDRULE_ON_LAND) + if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing) && + rule->flag & BOIDRULE_ON_LAND) { return 1; + } - if (bpa->data.mode == eBoidMode_InAir && rule->flag & BOIDRULE_IN_AIR) + if (bpa->data.mode == eBoidMode_InAir && rule->flag & BOIDRULE_IN_AIR) { return 1; + } return 0; } @@ -1014,21 +1029,26 @@ static float boid_goal_signed_dist(float *boid_co, float *goal_co, float *goal_n static int apply_boid_rule( BoidBrainData *bbd, BoidRule *rule, BoidValues *val, ParticleData *pa, float fuzziness) { - if (rule == NULL) + if (rule == NULL) { return 0; + } - if (boid_rule_applies(pa, bbd->part->boids, rule) == 0) + if (boid_rule_applies(pa, bbd->part->boids, rule) == 0) { return 0; + } - if (boid_rules[rule->type](rule, bbd, val, pa) == 0) + if (boid_rules[rule->type](rule, bbd, val, pa) == 0) { return 0; + } if (fuzziness < 0.0f || compare_len_v3v3(bbd->wanted_co, pa->prev_state.vel, - fuzziness * len_v3(pa->prev_state.vel)) == 0) + fuzziness * len_v3(pa->prev_state.vel)) == 0) { return 1; - else + } + else { return 0; + } } static BoidState *get_boid_state(BoidSettings *boids, ParticleData *pa) { @@ -1036,14 +1056,16 @@ static BoidState *get_boid_state(BoidSettings *boids, ParticleData *pa) BoidParticle *bpa = pa->boid; for (; state; state = state->next) { - if (state->id == bpa->data.state_id) + if (state->id == bpa->data.state_id) { return state; + } } /* for some reason particle isn't at a valid state */ state = boids->states.first; - if (state) + if (state) { bpa->data.state_id = state->id; + } return state; } @@ -1094,8 +1116,9 @@ void boid_brain(BoidBrainData *bbd, int p, ParticleData *pa) switch (state->ruleset_type) { case eBoidRulesetType_Fuzzy: { for (rule = state->rules.first; rule; rule = rule->next) { - if (apply_boid_rule(bbd, rule, &val, pa, state->rule_fuzziness)) + if (apply_boid_rule(bbd, rule, &val, pa, state->rule_fuzziness)) { break; /* only first nonzero rule that comes through fuzzy rule is applied */ + } } break; } @@ -1146,8 +1169,9 @@ void boid_brain(BoidBrainData *bbd, int p, ParticleData *pa) copy_v3_v3(cvel, bbd->wanted_co); normalize_v2(cvel); - if (dot_v2v2(cvel, dir) > 0.95f / mul) + if (dot_v2v2(cvel, dir) > 0.95f / mul) { bpa->data.mode = eBoidMode_Liftoff; + } } else if (val.jump_speed > 0.0f) { float jump_v[3]; @@ -1229,14 +1253,16 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) /* make sure there's something in new velocity, location & rotation */ copy_particle_key(&pa->state, &pa->prev_state, 0); - if (bbd->part->flag & PART_SIZEMASS) + if (bbd->part->flag & PART_SIZEMASS) { pa_mass *= pa->size; + } /* if boids can't fly they fall to the ground */ if ((boids->options & BOID_ALLOW_FLIGHT) == 0 && ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing) == 0 && - psys_uses_gravity(bbd->sim)) + psys_uses_gravity(bbd->sim)) { bpa->data.mode = eBoidMode_Falling; + } if (bpa->data.mode == eBoidMode_Falling) { /* Falling boids are only effected by gravity. */ @@ -1318,10 +1344,12 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) /* constrain speed with maximum acceleration */ old_speed = len_v3(pa->prev_state.vel); - if (bbd->wanted_speed < old_speed) + if (bbd->wanted_speed < old_speed) { new_speed = MAX2(bbd->wanted_speed, old_speed - val.max_acc); - else + } + else { new_speed = MIN2(bbd->wanted_speed, old_speed + val.max_acc); + } /* combine direction and speed */ copy_v3_v3(new_vel, new_dir); @@ -1467,11 +1495,13 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) bpa->data.mode = eBoidMode_OnLand; } /* if we're falling, can fly and want to go upwards lets fly */ - else if (boids->options & BOID_ALLOW_FLIGHT && bbd->wanted_co[2] > 0.0f) + else if (boids->options & BOID_ALLOW_FLIGHT && bbd->wanted_co[2] > 0.0f) { bpa->data.mode = eBoidMode_InAir; + } } - else + else { bpa->data.mode = eBoidMode_InAir; + } break; } case eBoidMode_Climbing: { @@ -1502,8 +1532,9 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) boid_climb(boids, pa, ground_co, ground_nor); } /* ground is too far away so boid falls */ - else if (pa->state.co[2] - ground_co[2] > 1.1f * pa->size * boids->height) + else if (pa->state.co[2] - ground_co[2] > 1.1f * pa->size * boids->height) { bpa->data.mode = eBoidMode_Falling; + } else { /* constrain to surface */ pa->state.co[2] = ground_co[2] + pa->size * boids->height; @@ -1541,8 +1572,9 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) } /* apply damping */ - if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing)) + if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing)) { mul_v3_fl(pa->state.vel, 1.0f - 0.2f * bbd->part->dampfac); + } /* calculate rotation matrix based on forward & down vectors */ if (bpa->data.mode == eBoidMode_InAir) { @@ -1570,8 +1602,9 @@ void boid_body(BoidBrainData *bbd, ParticleData *pa) BoidRule *boid_new_rule(int type) { BoidRule *rule = NULL; - if (type <= 0) + if (type <= 0) { return NULL; + } switch (type) { case eBoidRuleType_Goal: @@ -1637,10 +1670,12 @@ BoidState *boid_new_state(BoidSettings *boids) BoidState *state = MEM_callocN(sizeof(BoidState), "BoidState"); state->id = boids->last_state_id++; - if (state->id) + if (state->id) { BLI_snprintf(state->name, sizeof(state->name), "State %i", state->id); - else + } + else { strcpy(state->name, "State"); + } state->rule_fuzziness = 0.5; state->volume = 1.0f; @@ -1705,8 +1740,9 @@ BoidState *boid_get_current_state(BoidSettings *boids) BoidState *state = boids->states.first; for (; state; state = state->next) { - if (state->flag & BOIDSTATE_CURRENT) + if (state->flag & BOIDSTATE_CURRENT) { break; + } } return state; |