java - How to design Database for this situation? -


i'm working minimal game java , mysql. encountered difficulties how design tables correctly. need advices: let me specific, have 3 classes:

node 

 public class node {      private integer id;      private integer position;      private integer foodtax;      private boolean hastreasuremap;      private integer currentplayer; // playerid

treasure

 public class treasure {      integer id;      private integer position; // nodeid      private integer goldvalue;

player

public class player {  private integer id;  private integer wealth;  private integer strength;  private integer start;  private integer goal;  private integer currentposition; // nodeid  private integer currentgoal; // nodeid  private vector<integer> path;  private vector<integer> treasureids;  private int currentmoveindex;  graph<integer> telescope;

i'm newbie mysql, , database in general. think have use foreign key in case. however, i'm still vague how implement it. besides, there several constraints:

  1. treasure's position fixed.
  2. node position fix.
  3. only player position can changed.
  4. a node can have player @ time.( try make simple can, cause if there 2 players in same node, don't know how handle )

so foreign key here in opinion 'currentplayer' id of class node? please correct me if wrong. idea?

best regards, chan nguyen

it's still not clear you're trying store, have table nodes:

node    id    position    foodtax    hastreasuremap    currentplayerid /*refers player table*/  treasure    id    nodeid /* refers node table*/    value  player    id    /*unrelated fields such wealth, strength, start*/    position /*refers id in node*/    currentgoal /*refers id in node*/  playertreasures    playerid /* refers player table*/    treasureid /* refers treasure table*/  paths    nodeid /*refers nodeid - assume path made of nodes*/    sequenceinpath /*i assume ordering in path matters*/    playerid /*refers player owns path*/

...i have no idea telescope for. again, suggestion might not work, i'm not sure you're doing data.


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