int worker_manager(void *data)
{
for(;;) {
int i,j,k;
waiter_wait(&manager_monitor);
SDL_LockMutex(finished_gen.mutex);
while (finished_gen.head != finished_gen.tail) {
int h = finished_gen.head;
end_procgen(gen_queue[h].world_x, gen_queue[h].world_y);
put_chunk_in_cache(gen_queue[h].world_x, gen_queue[h].world_y, gen_queue[h].gc);
finished_gen.head = (h+1) % finished_gen.length;
}
SDL_UnlockMutex(finished_gen.mutex);
SDL_LockMutex(requested_mesh_mutex);
for (i=0; i < MAX_BUILT_MESHES; ++i) {
requested_mesh *rm = &renderer_requested_meshes[i];
if (rm->state == RMS_requested) {
int valid_chunks=0;
for (k=0; k < 4; ++k) {
for (j=0; j < 4; ++j) {
if (!rm->chunk_set_valid[k][j]) {
int cx = rm->x + j * GEN_CHUNK_SIZE_X, cy = rm->y + k * GEN_CHUNK_SIZE_Y;
gen_chunk_cache *gcc = get_gen_chunk_cache_for_coord(cx, cy);
if (gcc) {
rm->cs.chunk[k][j] = gcc->chunk;
} else if (is_in_progress(cx, cy)) {
// it's already in progress, so do nothing
} else if (can_start_procgen(cx, cy)) {
task t;
start_procgen(cx,cy);
t.world_x = cx;
t.world_y = cy;
t.task_type = JOB_generate_terrain;
add_task(&t);
}
} else {
++valid_chunks;
}
}
}
if (valid_chunks == 16) {
task t;
t.cs = rm->cs;
assert(rm->state == RMS_requested);
rm->state = RMS_chunks_completed_waiting_for_meshing;
t.task_type = JOB_build_mesh;
t.world_x = rm->x;
t.world_y = rm->y;
add_task(&t);
}
}
}
SDL_UnlockMutex(requested_mesh_mutex);
}
}
gen_chunk *get_gen_chunk_for_coord(int x, int y)
{
gen_chunk_cache *gcc = get_gen_chunk_cache_for_coord(x,y);
if (gcc == NULL) {
gcc = put_chunk_in_cache(x, y, generate_chunk(x, y));
}
assert(gcc->chunk_x*GEN_CHUNK_SIZE_X == x && gcc->chunk_y*GEN_CHUNK_SIZE_Y == y);
return gcc->chunk;
}