3

Here are my declarations and code:

struct Key
{
    bytes32 blindedKey;
    uint deposit;
    address player;
    bool revealed;
}
mapping(address => Key[]) public keys;

function seating(bytes32 _blindedKey)
    onlyBefore(seatingEnd)
    {
    //each player gives hash verifies key later
    keys[msg.sender].push(Key({
        blindedKey: _blindedKey,
        deposit: msg.value,
        player: msg.sender,
        revealed: false
    }));

The function seating has more to it as well. I am trying now to call a specific entry from another function. I'd like it to be, for example, the second msg.sender's address (player). So I am trying something like keys[2].player which is seemingly wrong but might give an example of what I am looking for.

Typically I pull the information up like this: var key = keys[msg.sender][0];

And can use: key.player but how do I specify the 2nd key.player etc.

Thanks!

2
  • I deleted this because I realized there might be different solutions but I think I actually need help. the keys[msg.sender].push(Key is a relic from the blind auction example, but I leave it in because it may become useful as the contract evolves. It allows for the same player to make multiple entries-it's purpose was to allow each player to input false entries with the real ones. I will have each player only able to make 1 entry, and so there should be an array of sorts mapping their keys to positions in Key[] but I only get errors when I try things like Key[i]
    – JTicker12
    Mar 12 '16 at 21:40
  • Also I think I might be able to use and array here and I'm not sure what is better. I can create an array that anytime a player successfully enters a choice through keys I can push an entry into the array. This just means I'll have update the array in other functions in case a player leaves the game. Not confident on the syntax but ill play around with it.
    – JTicker12
    Mar 12 '16 at 22:20
2
var key = Key(_blindedKey, msg.value, msg.sender, false);
keys[msg.sender] = key;

You can also save some space by not keeping msg.sender in Key as it is already the map key.

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