This repository has been archived on 2022-05-21. You can view files and clone it, but cannot push or open issues or pull requests.
LEFTONE/core/lobullet/pool.c
falsycat 84c3a02b9a [RELEASE] u22-v03
This version is submitted to U22 breau.
2020-09-14 00:00:00 +00:00

105 lines
2.4 KiB
C

#include "./pool.h"
#include <stddef.h>
#include <msgpack.h>
#include "util/memory/memory.h"
#include "core/locommon/counter.h"
#include "core/locommon/ticker.h"
#include "core/loentity/store.h"
#include "core/loresource/set.h"
#include "core/loshader/bullet.h"
#include "./base.h"
struct lobullet_pool_t {
loresource_set_t* res;
loshader_bullet_drawer_t* drawer;
locommon_counter_t* idgen;
const locommon_ticker_t* ticker;
loentity_store_t* entities;
size_t length;
lobullet_base_t items[1];
};
static size_t lobullet_pool_find_unused_item_index_(
const lobullet_pool_t* pool) {
assert(pool != NULL);
for (size_t i = 0; i < pool->length; ++i) {
if (!pool->items[i].used) return i;
}
fprintf(stderr, "bullet pool overflow\n");
abort();
}
lobullet_pool_t* lobullet_pool_new(
loresource_set_t* res,
loshader_bullet_drawer_t* drawer,
locommon_counter_t* idgen,
const locommon_ticker_t* ticker,
loentity_store_t* entities,
size_t length) {
assert(res != NULL);
assert(drawer != NULL);
assert(idgen != NULL);
assert(ticker != NULL);
assert(entities != NULL);
assert(length > 0);
lobullet_pool_t* pool =
memory_new(sizeof(*pool) + (length-1)*sizeof(pool->items[0]));
*pool = (typeof(*pool)) {
.res = res,
.drawer = drawer,
.idgen = idgen,
.ticker = ticker,
.entities = entities,
.length = length,
};
for (size_t i = 0; i < pool->length; ++i) {
lobullet_base_initialize(
&pool->items[i],
res,
drawer,
ticker,
entities);
}
return pool;
}
void lobullet_pool_delete(lobullet_pool_t* pool) {
if (pool == NULL) return;
for (size_t i = 0; i < pool->length; ++i) {
lobullet_base_deinitialize(&pool->items[i]);
}
memory_delete(pool);
}
lobullet_base_t* lobullet_pool_create(lobullet_pool_t* pool) {
assert(pool != NULL);
const size_t i = lobullet_pool_find_unused_item_index_(pool);
pool->items[i].used = true;
lobullet_base_reinitialize(
&pool->items[i], locommon_counter_count(pool->idgen));
return &pool->items[i];
}
lobullet_base_t* lobullet_pool_unpack_item(
lobullet_pool_t* pool, const msgpack_object* obj) {
assert(pool != NULL);
const size_t i = lobullet_pool_find_unused_item_index_(pool);
if (!lobullet_base_unpack(&pool->items[i], obj)) return NULL;
pool->items[i].used = true;
return &pool->items[i];
}