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jacob 2025-02-23 04:18:14 -06:00
parent 4d419da97b
commit f0834c203f
5 changed files with 727 additions and 740 deletions
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2
src/common.h
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@ -488,7 +488,6 @@ struct string32 {
}; };
#define UID(hi, lo) (struct uid) { .v = U128((hi), (lo)) } #define UID(hi, lo) (struct uid) { .v = U128((hi), (lo)) }
#define UID0 (struct uid) { 0 }
struct uid { struct uid {
union { union {
u128 v; u128 v;
@ -499,6 +498,7 @@ struct uid {
}; };
}; };
INLINE b32 uid_eq(struct uid a, struct uid b) { return u128_eq(a.v, b.v); } INLINE b32 uid_eq(struct uid a, struct uid b) { return u128_eq(a.v, b.v); }
INLINE b32 uid_is_zero(struct uid uid) { return u128_eq(uid.v, U128(0, 0)); }
struct image_rgba { struct image_rgba {
u32 width; u32 width;

2
src/sim.c
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@ -332,6 +332,8 @@ struct sim_snapshot *sim_snapshot_alloc(struct sim_client *client, struct sim_sn
root->handle = SIM_ENT_ROOT_HANDLE; root->handle = SIM_ENT_ROOT_HANDLE;
root->valid = true; root->valid = true;
root->is_root = true; root->is_root = true;
root->mass_unscaled = F32_INFINITY;
root->inertia_unscaled = F32_INFINITY;
++ss->num_ents_allocated; ++ss->num_ents_allocated;
++ss->num_ents_reserved; ++ss->num_ents_reserved;
} else { } else {

8
src/sim_ent.c
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@ -99,7 +99,7 @@ void sim_ent_release_raw(struct sim_ent *ent)
} }
/* Release uid */ /* Release uid */
sim_ent_set_uid(ent, UID0); sim_ent_set_uid(ent, UID(0, 0));
/* Release */ /* Release */
++ent->handle.gen; ++ent->handle.gen;
@ -174,7 +174,7 @@ void sim_ent_set_uid(struct sim_ent *ent, struct uid uid)
struct uid old_uid = ent->uid; struct uid old_uid = ent->uid;
/* Release old from lookup */ /* Release old from lookup */
if (!uid_eq(old_uid, UID0)) { if (!uid_is_zero(old_uid)) {
u64 hash = hash_from_uid(old_uid); u64 hash = hash_from_uid(old_uid);
struct sim_ent_bucket *bucket = &buckets[hash % num_uid_buckets]; struct sim_ent_bucket *bucket = &buckets[hash % num_uid_buckets];
struct sim_ent *prev = sim_ent_nil(); struct sim_ent *prev = sim_ent_nil();
@ -203,7 +203,7 @@ void sim_ent_set_uid(struct sim_ent *ent, struct uid uid)
} }
/* Insert new uid into lookup */ /* Insert new uid into lookup */
if (!uid_eq(uid, UID0)) { if (!uid_is_zero(uid)) {
u64 hash = hash_from_uid(uid); u64 hash = hash_from_uid(uid);
struct sim_ent_bucket *bucket = &buckets[hash % num_uid_buckets]; struct sim_ent_bucket *bucket = &buckets[hash % num_uid_buckets];
struct sim_ent *last = sim_ent_from_handle(ss, bucket->last); struct sim_ent *last = sim_ent_from_handle(ss, bucket->last);
@ -223,7 +223,7 @@ struct sim_ent *sim_ent_from_uid(struct sim_snapshot *ss, struct uid uid)
{ {
struct sim_ent *res = sim_ent_nil(); struct sim_ent *res = sim_ent_nil();
u64 num_buckets = ss->num_uid_buckets; u64 num_buckets = ss->num_uid_buckets;
if (num_buckets > 0 && !uid_eq(uid, UID0)) { if (num_buckets > 0 && !uid_is_zero(uid)) {
u64 hash = hash_from_uid(uid); u64 hash = hash_from_uid(uid);
struct sim_ent_bucket *bucket = &ss->uid_buckets[hash % num_buckets]; struct sim_ent_bucket *bucket = &ss->uid_buckets[hash % num_buckets];
for (struct sim_ent *e = sim_ent_from_handle(ss, bucket->first); e->valid; e = sim_ent_from_handle(ss, e->next_in_uid_bucket)) { for (struct sim_ent *e = sim_ent_from_handle(ss, bucket->first); e->valid; e = sim_ent_from_handle(ss, e->next_in_uid_bucket)) {

5
src/sim_ent.h
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@ -387,6 +387,11 @@ INLINE b32 sim_ent_is_valid_and_active(struct sim_ent *ent)
return ent->valid && sim_ent_has_prop(ent, SIM_ENT_PROP_ACTIVE); return ent->valid && sim_ent_has_prop(ent, SIM_ENT_PROP_ACTIVE);
} }
INLINE b32 sim_ent_should_simulate(struct sim_ent *ent)
{
return !sim_ent_has_prop(ent, SIM_ENT_PROP_SYNC_DST);
}
/* ========================== * /* ========================== *
* Ent functions * Ent functions
* ========================== */ * ========================== */

1450
src/sim_step.c
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