INT cd_gen(INT cmd, EQUIPMENT * pequipment)
{
INT status;
switch (cmd) {
case CMD_INIT:
status = gen_init(pequipment);
break;
case CMD_START:
status = gen_start(pequipment);
break;
case CMD_STOP:
status = gen_stop(pequipment);
break;
case CMD_EXIT:
status = gen_exit(pequipment);
break;
case CMD_IDLE:
status = gen_idle(pequipment);
break;
default:
cm_msg(MERROR, "Generic class driver", "Received unknown command %d", cmd);
status = FE_ERR_DRIVER;
break;
}
return status;
}
//产生一个随机地图, rate决定地图的渲染率. 地图大小应在mcMap中设定
int
gen_map(McMap * mcMap, double rate)
{
int i, j, retv = 0, count = 0;
int prev = 0, trans = 0, next = 0;
double sum;
pLinkList pList;
pQueuePoint pqp;
pList = init_queue();
if (pList == NULL)
return -1;
srandom(time(NULL));
//随机选择一个渲染点
i = random() % (mcMap->row - 2) + 1;
j = random() % (mcMap->col - 2) + 1;
sum = mcMap->row * mcMap->col + 0.1;
while (count / sum < rate) { //保证一定的渲染率
pqp = calloc(1, sizeof (QueuePoint));
if (pqp == NULL) {
retv = -1;
goto END;
}
pqp->i = i;
pqp->j = j;
insert_node(pList, pqp); //加入渲染队列
mcMap->map[i][j].exit |= NODE_QUEUED;
while (!is_empty(pList)) {
pqp = read_first(pList); //取队列首点
//产生该点的随机出口
gen_exit(mcMap, pqp->i, pqp->j, count / (rate * sum),
&prev, &trans, &next);
//产生该点的东东, ncp, box, boss...
gen_item(mcMap, pqp->i, pqp->j);
//加入该点的出口点
if (check_exit_node(pList, mcMap, pqp->i, pqp->j, 0) ||
check_exit_node(pList, mcMap, pqp->i, pqp->j, 1) ||
check_exit_node(pList, mcMap, pqp->i, pqp->j, 2) ||
check_exit_node(pList, mcMap, pqp->i, pqp->j, 3)) {
retv = -1;
goto END;
}
delete_node(pList, 0, 1); //从队列中删除该点
if ((++count) / sum > rate) //渲染率达到就跳出
goto END;
} //end of while(...)
random_select(mcMap, &i, &j); //如果一个点不够渲染率, 则再选择一个
}
END:
free_queue(pList, 1); //释放队列资源
return retv;
}