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Old 02-07-2010, 08:29 AM
bzdbbb's Avatar
bzdbbb bzdbbb is offline
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Join Date: Dec 2009
Location: Gloucestershire, UK
Posts: 94
Page Common Code Fragments

Now that the SKD has been released and more people are getting into writing apps I thought it would be a good idea to have a thread devoted to useful reusable code functions that are not included in the standard Libraries.

I'll kick things off; :P

Returns true if the point x,y is within the region at rx,ry with the width w and height h, else returns false:
Code:
function withinRegion(x, y, rx, ry, w, h)

	if x >= rx and x <= (rx + w) and y >= ry and y <= (ry + h) then
		return true;
	else
		return false;
	end;

end;
Returns the distance in pixels between x,y and x1,y1
Code:
function pointDistance(x,y,x1,y1)
	local xdist;
	local ydist;
	local dist;
	xdist = math.abs(x-x1);
	ydist = math.abs(y-y1);
	dist = math.sqrt((xdist*xdist)+(ydist*ydist));
	return dist;
end;
If you've written any other useful functions or have a improvement to one already listed, please post
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