i have this table called chara:
+----------+------------+----------------+-------------+------------+----------+----------+--------------+--------------+-----------+-----------+
| chara_id | chara_name | chara_class_id | chara_level | chara_gold | chara_hp | chara_mp | chara_max_hp | chara_max_mp | chara_atk | chara_def |
+----------+------------+----------------+-------------+------------+----------+----------+--------------+--------------+-----------+-----------+
| 1 | LawrenceX | 1 | 1 | 0 | 11610 | 1000 | 0 | 0 | 7 | 3 |
| 2 | Testo | 3 | 1 | 0 | 11465 | 900 | 0 | 0 | 9 | 1 |
| 3 | Viscocent | 2 | 1 | 0 | 11570 | 1100 | 0 | 0 | 5 | 5 |
| 4 | Piatos | 1 | 1 | 0 | 12470 | 1000 | 0 | 0 | 7 | 3 |
| 5 | Hello | 1 | 1 | 0 | 12600 | 1000 | 0 | 0 | 2 | 8 |
| 6 | Sample | 3 | 1 | 0 | 12700 | 900 | 0 | 0 | 9 | 1 |
| 7 | tester | 2 | 1 | 0 | 12500 | 1100 | 0 | 0 | 5 | 5 |
| 8 | Sampuro | 0 | 1 | 0 | 11700 | 100 | 0 | 0 | 5 | 5 |
+----------+------------+----------------+-------------+------------+----------+----------+--------------+--------------+-----------+-----------+
I have this chara_base_stat table:
+--------------+----------------+------------------+---------------+---------------+----------------+----------------+
| base_stat_id | chara_class_id | chara_base_level | chara_base_hp | chara_base_mp | chara_base_atk | chara_base_def |
+--------------+----------------+------------------+---------------+---------------+----------------+----------------+
| 1 | 1 | 1 | 1000 | 1000 | 5 | 5 |
| 2 | 1 | 2 | 1100 | 1100 | 10 | 10 |
| 3 | 1 | 3 | 1200 | 1200 | 15 | 15 |
| 4 | 1 | 4 | 1300 | 1300 | 20 | 20 |
| 5 | 1 | 5 | 1400 | 1400 | 25 | 25 |
| 6 | 2 | 1 | 900 | 1100 | 7 | 3 |
| 7 | 2 | 2 | 1000 | 1200 | 14 | 6 |
| 8 | 2 | 3 | 1100 | 1300 | 21 | 9 |
| 9 | 2 | 4 | 1200 | 1400 | 28 | 12 |
| 10 | 2 | 5 | 1300 | 1500 | 35 | 19 |
| 11 | 3 | 1 | 1100 | 900 | 2 | 8 |
| 12 | 3 | 2 | 1200 | 1000 | 4 | 16 |
| 13 | 3 | 3 | 1300 | 1100 | 6 | 24 |
| 14 | 3 | 4 | 1400 | 1200 | 8 | 32 |
| 15 | 3 | 5 | 1500 | 1300 | 16 | 40 |
+--------------+----------------+------------------+---------------+---------------+----------------+----------------+
and i have this script that updates the values of hp for every minute(using cronjob here):
$sql = "UPDATE chara SET chara_hp = chara_hp +100";
$stmt = $db->prepare($sql);
$stmt->execute();
My Struggle:
how can i add +100 to the current value of chara_hp on chara table where the current chara_hp in the chara table does not exceed in the chara_base_hp from chara_base_stat table
basically all i want is to only regenerate those players hp if it there current hp is lesser than of there current chara_base_hp from chara_base_stat table
Note: the current chara_base_hp corresponds to the current level of the player and chara_class_id of the player.
so far i have this query here:
SELECT ch.chara_hp, bs.chara_base_hp FROM chara ch inner join chara_base_stat bs on(ch.chara_class_id = bs.chara_class_id and ch.chara_level = bs.chara_base_level)
that returns
+----------+---------------+
| chara_hp | chara_base_hp |
+----------+---------------+
| 13210 | 1000 |
| 14070 | 1000 |
| 14200 | 1000 |
| 13170 | 900 |
| 14100 | 900 |
| 13065 | 1100 |
| 14300 | 1100 |
+----------+---------------+
i want to do this in sql:
if(chara_hp < chara_base_hp){ update chara set chara_hp = chara_hp + 100 }
UPDATE
chara ch INNER JOIN chara_base_stat bs
ON ch.chara_class_id = bs.chara_class_id
AND ch.chara_level = bs.chara_base_level
SET
ch.chara_hp = LEAST(bs.chara_base_hp, ch.chara_hp + 100)
WHERE
ch.chara_hp < bs.chara_base_hp
Related
I have a table like this
+----+--------+--------+
| id | ref_id | status |
+----+--------+--------+
| 1 | 3 | 1 |
| 2 | 4 | 0 |
| 4 | 6 | 0 |
| 6 | 8 | 1 |
| 8 | 10 | 0 |
| 10 | 12 | 1 |
| 12 | 14 | 1 |
| 14 | 16 | 0 |
| 16 | 18 | 0 |
| 18 | 20 | 0 |
+----+--------+--------+
I want to find the number of rows that has a status 0 in descending order continuously. In this Case number would be 3
+----+--------+--------+
| id | ref_id | status |
+----+--------+--------+
| 1 | 3 | 1 |
| 2 | 4 | 0 |
| 4 | 6 | 0 |
| 6 | 8 | 1 |
| 8 | 10 | 1 |
| 10 | 12 | 1 |
| 12 | 14 | 0 |
| 14 | 16 | 0 |
| 16 | 18 | 0 |
| 18 | 20 | 0 |
+----+--------+--------+
In this case it is four
+----+--------+--------+
| id | ref_id | status |
+----+--------+--------+
| 1 | 3 | 1 |
| 2 | 4 | 0 |
| 4 | 6 | 0 |
| 6 | 8 | 1 |
| 8 | 10 | 1 |
| 10 | 12 | 1 |
| 12 | 14 | 0 |
| 14 | 16 | 0 |
| 16 | 18 | 0 |
| 18 | 20 | 1 |
+----+--------+--------+
In this case it is 0
So far I tried is processing the rows descending and finding it through php condition . Is there any better way to do it ?
I used this code in codeigniter and get the result
$this->db->select('count(id) as number');
$this->db->from('tablename');
$this->db->where('id > (select max(id) FROM tablename where status = 1)',
NULL, FALSE);
In mysql
SELECT count(id) as number FROM tablename
WHERE id > (select max(id) FROM tablename where status = 1)
I need help to figure out how to solve this:
We are trying to create a fixture list for a tournament, below you will find a table generated by a webinterface we have. (Not sure if this is the ideal layout to make the fixture list, but I may do changes to what we store and use as a basis for the task below).
The tournament concept is with x number of courts in the same location. So we would like to have court utilization as close to 100% as possible.
The problem is to generate the fixture list itself based on this table without conflicts( a team plays 2 games in same round) and also to have the best utilization of the courts.
Explanation of the concept:
Tournament_id is the id of the main tournament.
Then we have sub tournaments, and they are identified by pool_id. Then each pool may have several groups which play round robin (single/double) group_id.
We have already done the setup of games so the teams playing each other are located in home and visit, and the round within the group is indicated by round. This means if a group has 2 games in round 1 this is the maximum games that can be played in this group for this round, if only one game the maximum is 1.
priority is used as this:
Equal priority means the games should be handled together during creation of fixture list. In the example pool_id=23 has 3 groups, 0,1,2. 1 and 2 has priority 1, and 0 has priority 2.
This means the games for group 0 cannot be played before the games in priority 1 for groups 1 and 2 has been played. (it is used to keep control inside each pool.)
The number of courts in the tournament is known at this stage and for this example it's 4.
I would like to be able to generate the fixture list in 2 different ways:
1: We use the courts column and assign to correct court.
2: We do not use the courts column, and assign games to next available court.
I would like to have an array which I can loop through to make the fixture list, game by game, round by round with indication of the court it is assigned.
mysql> select * from tournament_games where tournament_id=7 order by priority,round,fetch_order;
+---------------+---------+----------+-------+------+-------+--------+----------+-------------+-----------------------+
| tournament_id | pool_id | group_id | round | home | visit | courts | priority | fetch_order | gametype |
+---------------+---------+----------+-------+------+-------+--------+----------+-------------+-----------------------+
| 7 | 20 | 1 | 1 | 156 | 49 | 4 | 1 | 1 | |
| 7 | 20 | 2 | 1 | 80 | 71 | 3 | 1 | 2 | |
| 7 | 18 | 1 | 1 | 69 | 64 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 1 | 68 | 65 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 1 | 155 | 50 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 1 | 153 | 100 | 2 | 1 | 6 | |
| 7 | 20 | 1 | 2 | 49 | 79 | 4 | 1 | 1 | |
| 7 | 20 | 2 | 2 | 71 | 74 | 3 | 1 | 2 | |
| 7 | 18 | 1 | 2 | 64 | 68 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 2 | 69 | 65 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 2 | 50 | 99 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 2 | 100 | 151 | 2 | 1 | 6 | |
| 7 | 20 | 1 | 3 | 156 | 79 | 4 | 1 | 1 | |
| 7 | 20 | 2 | 3 | 74 | 80 | 3 | 1 | 2 | |
| 7 | 18 | 1 | 3 | 65 | 64 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 3 | 69 | 68 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 3 | 155 | 99 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 3 | 153 | 151 | 2 | 1 | 6 | |
| 7 | 20 | 1 | 4 | 49 | 156 | 4 | 1 | 1 | |
| 7 | 18 | 1 | 4 | 65 | 68 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 4 | 64 | 69 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 4 | 50 | 155 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 4 | 100 | 153 | 2 | 1 | 6 | |
| 7 | 20 | 1 | 5 | 79 | 49 | 4 | 1 | 1 | |
| 7 | 18 | 1 | 5 | 65 | 69 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 5 | 68 | 64 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 5 | 50 | 99 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 5 | 100 | 151 | 2 | 1 | 6 | |
| 7 | 20 | 1 | 6 | 79 | 156 | 4 | 1 | 1 | |
| 7 | 18 | 1 | 6 | 69 | 68 | 3-4 | 1 | 4 | |
| 7 | 18 | 1 | 6 | 65 | 64 | 3-4 | 1 | 4 | |
| 7 | 23 | 1 | 6 | 99 | 155 | 1 | 1 | 5 | |
| 7 | 23 | 2 | 6 | 151 | 153 | 2 | 1 | 6 | |
| 7 | 20 | 0 | 1 | 0 | 0 | 3-4 | 2 | 3 | partidos de posición |
| 7 | 20 | 0 | 1 | 0 | 0 | 3-4 | 2 | 3 | partidos de posición |
| 7 | 20 | 0 | 1 | 0 | 0 | 3-4 | 2 | 3 | partidos de posición |
| 7 | 20 | 0 | 1 | 0 | 0 | 3-4 | 2 | 3 | partidos de posición |
| 7 | 23 | 0 | 1 | 0 | 0 | 1-2 | 2 | 7 | semifinales |
| 7 | 23 | 0 | 1 | 0 | 0 | 1-2 | 2 | 7 | semifinales |
| 7 | 23 | 0 | 2 | 0 | 0 | 1-2 | 2 | 7 | final y perdedor |
| 7 | 23 | 0 | 2 | 0 | 0 | 1-2 | 2 | 7 | final y perdedor |
+---------------+---------+----------+-------+------+-------+--------+----------+-------------+-----------------------+
41 rows in set (0.00 sec)
Anyone with any suggestions on how to go about solving this?
regards, Roar
i have 3 tables. 2 reference table and one table transactions.
Table puskesmas
mysql> select id,nama from puskesmas;
+----+----------------------+
| id | nama |
+----+----------------------+
| 1 | BAMBANGLIPURO |
| 2 | BANGUNTAPAN |
| 3 | BANTUL |
| 4 | DLINGO |
| 5 | IMOGIRI |
| 6 | JETIS |
| 7 | KASIHAN |
| 8 | KRETEK |
| 9 | PAJANGAN |
| 10 | PANDAK |
+----+----------------------+
Table poli
mysql> select * from poli;
+----+---------------+
| id | nama |
+----+---------------+
| 1 | BP |
| 2 | KIA |
| 3 | GIGI |
| 4 | JIWA |
+----+---------------+
Table loket
mysql> select pasien_id,poli_id,puskesmas_id from loket limit 10;
+-----------+---------+--------------+
| pasien_id | poli_id | puskesmas_id |
+-----------+---------+--------------+
| 1 | 1 | 1 |
| 5 | 2 | 2 |
| 1 | 1 | 3 |
| 9 | 3 | 4 |
| 1 | 3 | 5 |
| 5 | 2 | 1 |
| 1 | 1 | 3 |
| 8 | 1 | 2 |
| 10 | 3 | 6 |
| 5 | 2 | 5 |
+-----------+---------+--------------+
I want to show the total number (count) of visits to puskesmas table. then made field all_total
fter that I want to take patient visits where poli_id = 1 and used as a column bp. for other poly are the same as the
+----+----------------------+--------------+------+------+------+------+
| id | nama | All Total | BP | KIA | GIGI | JIWA |
+----+----------------------+--------------+------+------+------+------+
| 1 | BAMBANGLIPURO | 30 | 10 | 3 | 15 | 2 |
| 2 | BANGUNTAPAN | 35 | 20 | 4 | 11 | 0 |
| 3 | BANTUL | 15 | 10 | 0 | 5 | 0 |
| 4 | DLINGO | 12 | 10 | 1 | 1 | 0 |
| 5 | IMOGIRI | 10 | 5 | 2 | 1 | 2 |
| 6 | JETIS | 25 | 13 | 3 | 7 | 2 |
| 7 | KASIHAN | 20 | 10 | 10 | 0 | 0 |
| 8 | KRETEK | 23 | 20 | 1 | 1 | 1 |
| 9 | PAJANGAN | 10 | 5 | 1 | 3 | 1 |
| 10 | PANDAK | 0 | 0 | 0 | 0 | 0 |
+----+----------------------+--------------+------+------+------+------+
I've tried to make a query to display like this but it always fails to hold. Can anyone help to make such queries desired results
i have tried query like this :
select puskesmas_id,
sum(case when poli_id=1 then 1 else 0 end) bp,
sum(case when poli_id=5 then 0 else 1 end) gigi,
count(id) total
from loket
group by puskesmas_id
and result like this :
+--------------+------+------+-------+
| puskesmas_id | bp | gigi | total |
+--------------+------+------+-------+
| 1 | 97 | 126 | 143 |
| 6 | 74 | 185 | 210 |
| 8 | 131 | 179 | 190 |
| 7 | 90 | 92 | 98 |
| 2 | 33 | 39 | 54 |
| 4 | 158 | 248 | 263 |
| 3 | 66 | 68 | 72 |
+--------------+------+------+-------+
but puskesmas_id the value 0 does not perform data when querying
My case is that I want to compute a player atk power to be used on a battle module that i made, but just wondering i have actually 2 options:
Calculate Damage Dealt from the server.(my CURRENT OPTIONS)
use PHP to calculate DAMAGE DEALT and UPDATE server DATABASE values.
pass 2 of the chara id and just calculate all in the QUERY and UPDATE all(is this possible).
Question: Can I do it in a query?(option B)
my current set-up:
1 character has 4 items and i compute the characters atk by adding all 4 of the item atk and the chara base atk in the client side. (which i think is prone to security holes)
and then update the values in the server side.
Here is my tables:
chara:
+----------+------------+----------------+-------------+------------+----------+----------+----------+-----------+-----------+
| chara_id | chara_name | chara_class_id | chara_level | chara_gold | chara_hp | chara_mp | chara_xp | chara_atk | chara_def |
+----------+------------+----------------+-------------+------------+----------+----------+----------+-----------+-----------+
| 1 | LawrenceX | 1 | 5 | 230 | -175 | 1000 | 0 | 7 | 3 |
| 3 | Viscocent | 2 | 2 | 96 | -206 | 1100 | 1700 | 5 | 5 |
| 4 | Piatos | 1 | 1 | 120 | -60 | 1000 | 0 | 7 | 3 |
| 5 | Hello | 1 | 1 | 300 | -50 | 1000 | 200 | 2 | 8 |
| 6 | Sample | 3 | 2 | 251 | -85 | 900 | 0 | 9 | 1 |
| 8 | Sampuro | 2 | 1 | 170 | 895 | 1100 | 700 | 5 | 5 |
| 12 | fail | 2 | 3 | 481 | 1100 | 1300 | 0 | 21 | 9 |
| 13 | new | 1 | 1 | 1000 | -80 | 1000 | 0 | 5 | 5 |
+----------+------------+----------------+-------------+------------+----------+----------+----------+-----------+-----------+
items:
+---------+-----------------+-----------+----------+----------+----------+---------------------------------+-------------------------------------------------+------------+
| 0 | None | 0 | 0 | 0 | 0 | pics/none.png | | 400 |
| 1 | Axe | 1 | 220 | 10 | 0 | pics/weapons/axe.png | Another lumberjack axe is another man's weapon. | 200 |
| 2 | Wooden Sword | 1 | 70 | 0 | 0 | pics/weapons/wooden-sword.png | A wooden sword, 99% made from wood | 225 |
| 3 | Dagger | 1 | 60 | 5 | 0 | pics/weapons/dagger.png | A Dagger, Cheap and Sharp | 55 |
| 4 | Bow | 1 | 120 | 1 | 0 | pics/weapons/bow.png | The basics and simplest of all bows. | 120 |
| 5 | Helmet | 4 | 0 | 50 | 0 | pics/headgears/helmet.png | iron helmet - made from an iron pot scraps. | 155 |
| 6 | Tunic | 2 | 10 | 10 | 0 | pics/armors/tunic.png | A peasants tunic. | 50 |
| 7 | Armour | 2 | 0 | 75 | 0 | pics/armors/armour.png | | 150 |
| 8 | Necklace | 3 | 25 | 15 | 0 | pics/accessories/necklace.png | | 199 |
| 9 | Studded Leather | 2 | 25 | 60 | 0 | pics/armors/studded-leather.png | | 240 |
+---------+-----------------+-----------+----------+----------+----------+---------------------------------+-------------------------------------------------+------------+
equipment:
+----------+----------+-----------+-------------+----------+---------+
| equip_id | chara_id | weapon_id | headgear_id | armor_id | ring_id |
+----------+----------+-----------+-------------+----------+---------+
| 3 | 1 | 14 | 5 | 6 | 8 |
| 5 | 3 | 4 | 5 | 6 | 8 |
| 6 | 4 | 11 | 5 | 7 | 8 |
| 7 | 5 | 12 | 5 | 6 | 8 |
| 8 | 6 | 3 | 16 | 7 | 8 |
| 10 | 8 | 15 | 5 | 7 | 8 |
| 13 | 12 | 14 | 5 | 6 | 17 |
| 40 | 13 | 3 | 5 | 7 | 8 |
+----------+----------+-----------+-------------+----------+---------+
table relationships:
1 chara = 1 equipment
1 weapon_id, armor_id, ring_id, headgear_id = 1 item (total of 4 items, headgear_id = 1 item).
I CAN GET THE EQUIPMENTS OF A CHARACTER BY USING THIS QUERY(KUDOS #JC):
SELECT i1.item_atk weapon_atk,i1.item_def weapon_def,
i2.item_atk headgear_atk,
i2.item_def headgear_def,
i3.item_atk armor_atk,
i3.item_def armor_def,
i4.item_atk ring_atk,
i4.item_def ring_def
FROM equipment e LEFT JOIN
item i1 ON e.weapon_id = i1.item_id LEFT JOIN
item i2 ON e.headgear_id = i2.item_id LEFT JOIN
item i3 ON e.armor_id = i3.item_id LEFT JOIN
item i4 ON e.ring_id = i4.item_id
WHERE e.chara_id = 1
RESULTS:
+------------+------------+--------------+--------------+-----------+-----------+----------+----------+
| weapon_atk | weapon_def | headgear_atk | headgear_def | armor_atk | armor_def | ring_atk | ring_def |
+------------+------------+--------------+--------------+-----------+-----------+----------+----------+
| 275 | 25 | 0 | 50 | 10 | 10 | 25 | 15 |
+------------+------------+--------------+--------------+-----------+-----------+----------+----------+
now i want to total the atk and def of that character equipment and return it in that query
expected results:
+------------+------------+
| total_atk | total_def |
+------------+------------+
| 310 | 100 |
+------------+------------+
this is the simplest way that I can think of.
SELECT IFNULL(W.item_atk, 0) + IFNULL(H.item_atk, 0) + IFNULL(A.item_atk, 0) + IFNULL(R.item_atk, 0) AS total_atk
, IFNULL(W.item_def, 0) + IFNULL(H.item_def, 0) + IFNULL(A.item_def, 0) + IFNULL(R.item_def, 0) AS total_def
FROM equipment E
LEFT JOIN item W ON W.item_id = E.weapon_id
LEFT JOIN item H ON H.item_id = E.headgear_id
LEFT JOIN item A ON A.item_id = E.armor_id
LEFT JOIN item R ON R.item_id = E.ring_id
WHERE E.chara_id = 1
I have renamed the aliases of tables to track them easily. And I used IFNULL in case the character has no particular equipment.
==================================================================================
Dude, I just made another query, I think this is faster than the one above. Though, I haven't tested them.
SELECT SUM(IFNULL(I.item_atk, 0)) AS total_atk
, SUM(IFNULL(I.item_def, 0)) AS total_def
FROM equipment E
LEFT JOIN item I ON I.item_id = E.weapon_id
OR I.item_id = E.headgear_id
OR I.item_id = E.armor_id
OR I.item_id = E.ring_id
WHERE E.chara_id = 1
GROUP BY E.chara_id
i have this table called bag:
+--------+----------+---------+----------+
| bag_id | chara_id | item_id | item_qty |
+--------+----------+---------+----------+
| 1 | 1 | 2 | 26 |
| 2 | 1 | 1 | 56 |
| 3 | 3 | 1 | 4 |
| 6 | 3 | 4 | 3 |
| 7 | 4 | 4 | 3 |
| 8 | 5 | 4 | 3 |
| 9 | 6 | 4 | 2 |
| 10 | 1 | 5 | 1 |
| 14 | 1 | 8 | 1 |
| 15 | 1 | 6 | 2 |
| 18 | 1 | 4 | 4 |
| 19 | 1 | 3 | 2 |
| 29 | 8 | 1 | 1 |
| 30 | 8 | 7 | 2 |
| 33 | 6 | 2 | 1 |
| 34 | 3 | 5 | 1 |
| 35 | 3 | 8 | 3 |
| 37 | 4 | 3 | 1 |
| 45 | 3 | 3 | 14 |
| 46 | 8 | 2 | 2 |
| 60 | 8 | 5 | 2 |
| 61 | 3 | 2 | 10 |
| 74 | 12 | 2 | 1 |
| 97 | 12 | 5 | 1 |
| 103 | 3 | 6 | 1 |
+--------+----------+---------+----------+
and have this table called equipment:
+----------+----------+-----------+-------------+----------+---------+
| equip_id | chara_id | weapon_id | headgear_id | armor_id | ring_id |
+----------+----------+-----------+-------------+----------+---------+
| 3 | 1 | 4 | 5 | 9 | 8 |
| 5 | 3 | 2 | 5 | 3 | 8 |
| 6 | 4 | 7 | 5 | 3 | 8 |
| 7 | 5 | 4 | 5 | 3 | 8 |
| 8 | 6 | 3 | 5 | 2 | 8 |
| 10 | 8 | 3 | 5 | 2 | 8 |
| 11 | 3 | 2 | 5 | 0 | 8 |
| 12 | 3 | 2 | 5 | 0 | 8 |
| 13 | 12 | 2 | 0 | 0 | 0 |
| 14 | 5 | 4 | 0 | 0 | 0 |
| 15 | 1 | 1 | 0 | 0 | 0 |
| 16 | 1 | 0 | 0 | 6 | 0 |
| 17 | 4 | 4 | 0 | 0 | 0 |
| 18 | 8 | 2 | 0 | 0 | 0 |
| 19 | 3 | 2 | 5 | 0 | 8 |
+----------+----------+-----------+-------------+----------+---------+
scenario:
player equips an item from the bag to equipment:
#unequipping:
1. if equipment id to be unequipped exist in the bag then that bag item = item + 1
else
insert that item to the bag
#equipping:
1. bag item = bag item - 1 where item_id = equipped item_id
else if bag item = 0 then delete it.
basically i want to swap the item's from the equipment to the bag table,
though the twist is the quantity, wherein if that item to be swapped is already existing in the bag table then + 1 to the quantity and if the item from the bag table is = 1 then remove that item from the table and equip that item to the equipment table.
please pm me if you couldn’t understand my situation, its driving me nuts!
this is my current code(if it helps a little):
$fieldnames = array(1=>'weapon', 'armor', 'ring', 'headgear');
if (isset($fieldnames[$equip->item_type])) {
$field = $fieldnames[$equip->item_type].'_id';
$sql_unequip = "INSERT INTO bag(item_id, chara_id, item_qty)VALUES(:item_id, :chara_id, 1) ON DUPLICATE KEY UPDATE item_qty = item_qty + 1";
$sql_equip = "UPDATE equipment SET $field = :item_id WHERE chara_id = :chara_id";
$sql_unequip2 = "DELETE FROM bag WHERE item_id = :item_id AND chara_id = :chara_id AND item_qty = 0";
}