HI there, i have a question i hope its easy

Question

HI there, i have a question i hope its easy

to understand, if you could help i would be greatly appreciated :)

I have a Parent Class <Piece>, this class has Child classes, some of them being: <King>, <Queen>, <Bishop>...

Now i read each piece by a ID from a TXT File, when reading the file i want to call the appropiate Class to create a new object. (I think i didnt explain myself 😅 ), my question is how do i make that appropiate call? Should i do a:

if (id == 1) { // create new King }
else if (if == 2) { // create new Queen }
.....

What do you guys think?

0

07.12.2018

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Dmytro Buryak

I would use enum for chess pieces. And map pieceID->enum object. Imho, it's more natural to represent fixed enumeration of immutable objects as enum. When deserializing, simply get piece from map like pieces[id]. But it depends on what information your piece objects hold. If they should have state. Then I would also used a map but with factories. Like: pieceFactoriesMap[id].create(). Using factories is more ioc friendly and flexible.

0

07.12.2018

The Devs Bot · Accepted Answer

The Devs Bot

Please format the code you posted, by wrapping it in triple backticks. -> `

0

07.12.2018

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