Differential D11791 Diff 40163 source/blender/blenkernel/intern/boids.c

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source/blender/blenkernel/intern/boids.c

Show First 20 Lines • Show All 225 Lines • ▼ Show 20 Lines	static bool rule_avoid_collision(BoidRule *rule,
BoidParticle *bpa = pa->boid;		BoidParticle *bpa = pa->boid;
ColliderCache *coll;		ColliderCache *coll;
float vec[3] = {0.0f, 0.0f, 0.0f}, loc[3] = {0.0f, 0.0f, 0.0f};		float vec[3] = {0.0f, 0.0f, 0.0f}, loc[3] = {0.0f, 0.0f, 0.0f};
float co1[3], vel1[3], co2[3], vel2[3];		float co1[3], vel1[3], co2[3], vel2[3];
float len, t, inp, t_min = 2.0f;		float len, t, inp, t_min = 2.0f;
int n, neighbors = 0, nearest = 0;		int n, neighbors = 0, nearest = 0;
bool ret = 0;		bool ret = 0;

// check deflector objects first		/* Check deflector objects first. */
if (acbr->options & BRULE_ACOLL_WITH_DEFLECTORS && bbd->sim->colliders) {		if (acbr->options & BRULE_ACOLL_WITH_DEFLECTORS && bbd->sim->colliders) {
ParticleCollision col;		ParticleCollision col;
BVHTreeRayHit hit;		BVHTreeRayHit hit;
float radius = val->personal_space * pa->size, ray_dir[3];		float radius = val->personal_space * pa->size, ray_dir[3];

memset(&col, 0, sizeof(ParticleCollision));		memset(&col, 0, sizeof(ParticleCollision));

copy_v3_v3(col.co1, pa->prev_state.co);		copy_v3_v3(col.co1, pa->prev_state.co);
▲ Show 20 Lines • Show All 45 Lines • ▼ Show 20 Lines	if (hit.index >= 0) {

bbd->wanted_speed = sqrtf(t) * len_v3(pa->prev_state.vel);		bbd->wanted_speed = sqrtf(t) * len_v3(pa->prev_state.vel);
bbd->wanted_speed = MAX2(bbd->wanted_speed, val->min_speed);		bbd->wanted_speed = MAX2(bbd->wanted_speed, val->min_speed);

return true;		return true;
}		}
}		}

// check boids in own system		/* Check boids in own system. */
if (acbr->options & BRULE_ACOLL_WITH_BOIDS) {		if (acbr->options & BRULE_ACOLL_WITH_BOIDS) {
neighbors = BLI_kdtree_3d_range_search_with_len_squared_cb(bbd->sim->psys->tree,		neighbors = BLI_kdtree_3d_range_search_with_len_squared_cb(bbd->sim->psys->tree,
pa->prev_state.co,		pa->prev_state.co,
&ptn,		&ptn,
acbr->look_ahead *		acbr->look_ahead *
len_v3(pa->prev_state.vel),		len_v3(pa->prev_state.vel),
len_squared_v3v3_with_normal_bias,		len_squared_v3v3_with_normal_bias,
pa->prev_state.ave);		pa->prev_state.ave);
▲ Show 20 Lines • Show All 513 Lines • ▼ Show 20 Lines	static boid_rule_cb boid_rules[] = {
rule_goal_avoid,		rule_goal_avoid,
rule_goal_avoid,		rule_goal_avoid,
rule_avoid_collision,		rule_avoid_collision,
rule_separate,		rule_separate,
rule_flock,		rule_flock,
rule_follow_leader,		rule_follow_leader,
rule_average_speed,		rule_average_speed,
rule_fight,		rule_fight,
// rule_help,		#if 0
// rule_protect,		rule_help,
// rule_hide,		rule_protect,
// rule_follow_path,		rule_hide,
// rule_follow_wall,		rule_follow_path,
		rule_follow_wall,
		#endif
};		};

static void set_boid_values(BoidValues val, BoidSettings boids, ParticleData *pa)		static void set_boid_values(BoidValues val, BoidSettings boids, ParticleData *pa)
{		{
BoidParticle *bpa = pa->boid;		BoidParticle *bpa = pa->boid;

if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing)) {		if (ELEM(bpa->data.mode, eBoidMode_OnLand, eBoidMode_Climbing)) {
val->max_speed = boids->land_max_speed * bpa->data.health / boids->health;		val->max_speed = boids->land_max_speed * bpa->data.health / boids->health;
▲ Show 20 Lines • Show All 225 Lines • ▼ Show 20 Lines	static BoidState get_boid_state(BoidSettings boids, ParticleData *pa)
/* for some reason particle isn't at a valid state */		/* for some reason particle isn't at a valid state */
state = boids->states.first;		state = boids->states.first;
if (state) {		if (state) {
bpa->data.state_id = state->id;		bpa->data.state_id = state->id;
}		}

return state;		return state;
}		}
// static int boid_condition_is_true(BoidCondition *cond)
//{		#if 0 /* TODO */
// /* TODO */		static int boid_condition_is_true(BoidCondition *cond)
// return 0;		{
//}		return 0;
		}
		#endif

/* determines the velocity the boid wants to have */		/* determines the velocity the boid wants to have */
void boid_brain(BoidBrainData bbd, int p, ParticleData pa)		void boid_brain(BoidBrainData bbd, int p, ParticleData pa)
{		{
BoidRule *rule;		BoidRule *rule;
BoidSettings *boids = bbd->part->boids;		BoidSettings *boids = bbd->part->boids;
BoidValues val;		BoidValues val;
BoidState *state = get_boid_state(boids, pa);		BoidState *state = get_boid_state(boids, pa);
BoidParticle *bpa = pa->boid;		BoidParticle *bpa = pa->boid;
ParticleSystem *psys = bbd->sim->psys;		ParticleSystem *psys = bbd->sim->psys;
int rand;		int rand;
// BoidCondition *cond;

if (bpa->data.health <= 0.0f) {		if (bpa->data.health <= 0.0f) {
pa->alive = PARS_DYING;		pa->alive = PARS_DYING;
pa->dietime = bbd->cfra;		pa->dietime = bbd->cfra;
return;		return;
}		}

// planned for near future		/* Planned for near future. */
// cond = state->conditions.first;		#if 0
// for (; cond; cond=cond->next) {		BoidCondition *cond = state->conditions.first;
// if (boid_condition_is_true(cond)) {		for (; cond; cond = cond->next) {
// pa->boid->state_id = cond->state_id;		if (boid_condition_is_true(cond)) {
// state = get_boid_state(boids, pa);		pa->boid->state_id = cond->state_id;
// break; /* only first true condition is used */		state = get_boid_state(boids, pa);
// }		break; /* only first true condition is used */
//}		}
		}
		#endif

zero_v3(bbd->wanted_co);		zero_v3(bbd->wanted_co);
bbd->wanted_speed = 0.0f;		bbd->wanted_speed = 0.0f;

/* create random seed for every particle & frame */		/* create random seed for every particle & frame */
rand = (int)(psys_frand(psys, psys->seed + p) * 1000);		rand = (int)(psys_frand(psys, psys->seed + p) * 1000);
rand = (int)(psys_frand(psys, (int)bbd->cfra + rand) * 1000);		rand = (int)(psys_frand(psys, (int)bbd->cfra + rand) * 1000);

▲ Show 20 Lines • Show All 389 Lines • ▼ Show 20 Lines	case eBoidMode_Falling: {
}		}
else {		else {
bpa->data.mode = eBoidMode_InAir;		bpa->data.mode = eBoidMode_InAir;
}		}
break;		break;
}		}
case eBoidMode_Climbing: {		case eBoidMode_Climbing: {
boid_climb(boids, pa, ground_co, ground_nor);		boid_climb(boids, pa, ground_co, ground_nor);
// float nor[3];		#if 0
// copy_v3_v3(nor, ground_nor);		float nor[3];
		copy_v3_v3(nor, ground_nor);

		/* Gather apparent gravity to r_ve. */
		madd_v3_v3fl(pa->r_ve, ground_nor, -1.0);
		normalize_v3(pa->r_ve);

		/* Raise boid it's size from surface. */
		mul_v3_fl(nor, pa->size * boids->height);
		add_v3_v3v3(pa->state.co, ground_co, nor);

///* gather apparent gravity to r_ve */		/* Remove normal component from velocity. */
// madd_v3_v3fl(pa->r_ve, ground_nor, -1.0);		project_v3_v3v3(v, pa->state.vel, ground_nor);
// normalize_v3(pa->r_ve);		sub_v3_v3v3(pa->state.vel, pa->state.vel, v);
		#endif
///* raise boid it's size from surface */
// mul_v3_fl(nor, pa->size * boids->height);
// add_v3_v3v3(pa->state.co, ground_co, nor);

///* remove normal component from velocity */
// project_v3_v3v3(v, pa->state.vel, ground_nor);
// sub_v3_v3v3(pa->state.vel, pa->state.vel, v);
break;		break;
}		}
case eBoidMode_OnLand: {		case eBoidMode_OnLand: {
/* stick boid on goal when close enough */		/* stick boid on goal when close enough */
if (bbd->goal_ob && boid_goal_signed_dist(pa->state.co, bbd->goal_co, bbd->goal_nor) <=		if (bbd->goal_ob && boid_goal_signed_dist(pa->state.co, bbd->goal_co, bbd->goal_nor) <=
pa->size * boids->height) {		pa->size * boids->height) {
bpa->data.mode = eBoidMode_Climbing;		bpa->data.mode = eBoidMode_Climbing;
bpa->ground = bbd->goal_ob;		bpa->ground = bbd->goal_ob;
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