Take the 2-minute tour ×
Role-playing Games Stack Exchange is a question and answer site for gamemasters and players of tabletop, paper-and-pencil role-playing games. It's 100% free, no registration required.

I am working on implementing the SRD in Python (programming language), but unfortunately I am not great at math. I am stumped with figuring out how to calculate all of the squares that are within range of a radius (or cone) attack.

I did find What is a radius on a square grid?, which gives a handy formula for calculating the distance between squares (if a given square is within range). D=√((X * X)+(Y * Y))

I am hoping there are some math whizzes on here that can help me come up with a formula!

grid details:

I am using a simple coordinate system, (x,y) starting with 0 as first row on top and 0 as first column on the left.

share|improve this question
1  
I think this is off topic I'm afraid. You're better off asking on math.stackexchange.com. –  Phil Nov 25 '13 at 18:49
3  
This question appears to be off-topic because it is about maths –  Phil Nov 25 '13 at 18:50
2  
@James Lee Vann, how does this question differ from the one you already linked? How do you expect your answers to be different? –  Colin D Nov 25 '13 at 19:03
2  
Rasterising a circle is a basic programming question. Try GameDev.SE or StackOverflow. Actually nevermind, here's the Wikipedia article on how it's done: en.wikipedia.org/wiki/Midpoint_circle_algorithm –  SevenSidedDie Nov 25 '13 at 19:22
2  
possible duplicate of What is a radius on a square grid? –  okeefe Nov 25 '13 at 20:16
show 6 more comments

closed as off-topic by Phil, SevenSidedDie, Tridus, LitheOhm, okeefe Nov 25 '13 at 20:16

  • This question does not appear to be about role-playing games within the scope defined in the help center.
If this question can be reworded to fit the rules in the help center, please edit the question.

Browse other questions tagged or ask your own question.