[Item] Coin

[kevintakeda]

Coin because you can trade stuff. Buy necessary items to help find the clues!

• [x] Each character should have a coins_count field
• [x] Make some unit tests
• [ ] Update function.
• [ ] Transaction function between 2 characters. It should fail if sender doesn't have money

[jinc0930]

npc will have coins, they will give it to you if you give them specific items they ask for?

[kevintakeda]

@jinc0930 that's one idea, but i recommend we do #49 first and create a separate issue for functionalities around the coin. This issue is just about the coin itself, we can use the coin to do all sorts of stuff after coin impl is finished.

[jinc0930]

see updates.

[kevintakeda]

@jinc0930 This line add the purchase to the coins_count. It should not add anything if the purchase is negative. And then it adds again on the second line, if the purchase is positive, meaning you are duplicating the amount that is adding. ( also is ambiguous if should be negative vs positive, the purchase arg) https://github.com/jinc0930/Clue/blob/82b42f83242ab40e49b0f27e9d43eb812e87c740/character.c#L54

We also need a transaction function between 2 characters to transfer coins from one to another one.

I created some tests for the 2 functions, which is failing for now, you can modify the tests as you wish, type: mingw32-make test && ./test.exe if you are on windows to test. Or you can use full command: gcc -o test utils.c pool.c character.c rooms.c items.c game.c tests/test.c -Wall -std=c99 -D_DEFAULT_SOURCE -Wno-missing-braces

Tests are here: https://github.com/jinc0930/Clue/blob/82b42f83242ab40e49b0f27e9d43eb812e87c740/tests/test.c#L424-L444

Small tip: When this error happens after testing, click holding ctrl on tests/test.c:403, to find the exact line that didn't pass