97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
#include "world.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
tc_chunk_pool_s *tc_chunk_pool_g = NULL;
|
|
|
|
void tc_reset_chunk_pool(tc_chunk_pool_s *chunk_pool)
|
|
{
|
|
chunk_pool->used_entries = 0;
|
|
chunk_pool->first_free = chunk_pool->entries;
|
|
|
|
uint32_t entry_index = 0;
|
|
while(entry_index < chunk_pool->capacity)
|
|
{
|
|
chunk_pool->entries[entry_index].next = &chunk_pool->entries[entry_index+1];
|
|
chunk_pool->entries[entry_index].previous = &chunk_pool->entries[entry_index-1];
|
|
++entry_index;
|
|
}
|
|
|
|
chunk_pool->entries[0].previous = NULL;
|
|
chunk_pool->entries[chunk_pool->capacity-1].next = NULL;
|
|
}
|
|
|
|
tc_chunk_pool_s * tc_internal_new_chunk_pool(uint32_t capacity)
|
|
{
|
|
tc_chunk_pool_s *pool = malloc(sizeof(tc_chunk_pool_s));
|
|
pool->capacity = capacity;
|
|
pool->entries = calloc(sizeof(tc_chunk_pool_entry_s), pool->capacity);
|
|
tc_reset_chunk_pool(pool);
|
|
|
|
return pool;
|
|
}
|
|
|
|
void tc_init_chunk_pool(uint32_t capacity)
|
|
{
|
|
tc_chunk_pool_g = tc_internal_new_chunk_pool(capacity);
|
|
}
|
|
|
|
tc_chunk_pool_entry_s * tc_allocate_chunk_pool_entry(tc_chunk_pool_s *pool)
|
|
{
|
|
if(pool->first_free == NULL)
|
|
{
|
|
if(pool->continuation == NULL)
|
|
pool->continuation = tc_internal_new_chunk_pool(pool->capacity * 2);
|
|
return tc_allocate_chunk_pool_entry(pool->continuation);
|
|
}
|
|
tc_chunk_pool_entry_s *allocated = pool->first_free;
|
|
pool->first_free = allocated->next;
|
|
|
|
return allocated;
|
|
}
|
|
|
|
tc_chunk_s * tc_allocate_chunk()
|
|
{
|
|
tc_chunk_pool_entry_s *entry = tc_allocate_chunk_pool_entry(tc_chunk_pool_g);
|
|
entry->chunk.pool_entry = entry;
|
|
|
|
return &entry->chunk;
|
|
}
|
|
|
|
void tc_free_chunk(tc_chunk_s *chunk)
|
|
{
|
|
if(chunk->vao != 0)
|
|
{
|
|
glDeleteVertexArrays(1, &chunk->vertex_data);
|
|
chunk->vao = 0;
|
|
}
|
|
|
|
if(chunk->vertex_data != 0)
|
|
{
|
|
glDeleteBuffers(1, &chunk->vertex_data);
|
|
chunk->vertex_data = 0;
|
|
}
|
|
|
|
if(chunk->vertex_positions != NULL)
|
|
{
|
|
free(chunk->vertex_positions);
|
|
chunk->vertex_positions = NULL;
|
|
}
|
|
|
|
if(chunk->vertex_uvs != NULL)
|
|
{
|
|
free(chunk->vertex_uvs);
|
|
chunk->vertex_uvs = NULL;
|
|
}
|
|
|
|
chunk->num_vertices = 0;
|
|
chunk->position.x = 0;
|
|
chunk->position.y = 0;
|
|
chunk->position.z = 0;
|
|
memset(&chunk->blocks, 0x00, sizeof(uint32_t) * 32 * 32 * 32);
|
|
chunk->pool_entry->next = tc_chunk_pool_g->first_free;
|
|
tc_chunk_pool_g->first_free = chunk->pool_entry;
|
|
}
|
|
|