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Tile Engine Math

General and Gameplay Programming Programming

Started by TwisteR August 30, 2004 01:05 AM

4 comments, last by TwisteR 19 years, 7 months ago

TwisteR

122

Author

August 30, 2004 01:05 AM

Hello again, lol. i know i've been asking alot on these forums lately, and its been a really big help, and i'd like to thank everyone who helped. Now, for the question. ok, im building a tile engine that uses 32x32 tiles, there set up in a 13X13 grid. Now they are arranged by index number (0,1,2,3...168) and i need to access them by the x,y co-ords. i know how to get the Index number from the x,y co-ords ((y*width)+x = index), however i dont know how to get the x,y from the index. can neone help on this? thanks.

------------------------------------Mitch Mulholland----------A.K.A.= TwisteR---------------------------------------

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14,306

August 30, 2004 01:11 AM

y = (index / 13);
x = (index % 13);

throw table_exception("(? ???)? ? ???");

TwisteR

122

Author

August 30, 2004 01:14 AM

thanks

------------------------------------Mitch Mulholland----------A.K.A.= TwisteR---------------------------------------

TwisteR

122

Author

August 30, 2004 01:20 AM

lol sorry, but what is the %? it comes up with an error, it isnt X * 0.13 is it?

------------------------------------Mitch Mulholland----------A.K.A.= TwisteR---------------------------------------

Boder

935

August 30, 2004 01:22 AM

% is the modulus in C++, it gives the remainder after dividing the numbers

TwisteR

122

Author

August 30, 2004 01:26 AM

Oh, ok. thnx. lol its been a long time since i've done C++. lol. sorry bout the stupid q

------------------------------------Mitch Mulholland----------A.K.A.= TwisteR---------------------------------------

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