Player adventure class compare to item adventure

[Ememjr]

so i am looking at the items table adventure_classes field from what i can tell it is some type of bitmap to represent what classes can use the item

i am looking to change the quests.cpp and of course test it but would like to know how to compare that field to the current players class and get either a boolean response

i see where to get the items adventure class (item->generic_info.adventure_classes) but i do not know where to get the players class

so something like this

if item->generic_info.adventure_classes incluses ??the playerclass(lets say the player picking up a quest)
do something here;

still learning how everthing works together in eq2emu

[Jabantiz]

player->GetAdventureClass() will return the id of the class.

If I remember right, has been a long time sense I actually worked with bitmaps, you need to convert the class id into its bitmap equivalent which would be

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int64 id = pow(2, GetAdventureClass() - 1);

and then you compare that value to the bitmask by doing an and

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if ((item->generic_info.adventure_classes & id) > 0) {
    // class is in the bitmask
}

Make sure to have the ( ) around the and operation or else it will cause logic errors.

Again it has been a while sense I worked with this stuff so some of it might be off.

[Ememjr]

thanks a lot

i did have to modify a little, had to divide the item->generic_info.adventure_classes by 2 in order for the bits to line up correctly

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if ((id & (item->generic_info.adventure_classes / 2)) > 0) {
					// class in bit mask
				}

[Jabantiz]

Remember that it needs to be an unsigned int 64 for the id as that is what the adventure_classes should be. You should not modify the adventure_classes directly as that is just to store the bits, changing that value at all means the bits will shift around and no longer line up properly.