Difference between revisions of "GetDistanceInTiles"
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(Created page with 'integer '''getDistanceInTiles'''(location ''A'', location ''B'');<br> This function will return 9999 if A.x or B.x is greater or equal to 5120. Otherwise the absolute value of t…') |
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Revision as of 22:33, 14 April 2010
integer getDistanceInTiles(location A, location B);
This function will return 9999 if A.x or B.x is greater or equal to 5120. Otherwise the absolute value of the difference between A and B is made for both x and y and the highest value of the two is returned. The Z value is ignored when calculating the difference.
Pseudo-code (using signed integers):
integer DistanceInTiles(location A, location B)
{
if(A.x >= 5120 || B.x >= 5120)
return 9999;
Xdiff = A.x - B.x;
ydiff = A.y - B.y;
if(xdiff < 0)
xdiff = -xdiff;
if(ydiff < 0)
ydiff = -ydiff;
if(A.x < 5120) // OSI-bug (?), A.x is always lower than 5120
{
if(5120 - xdiff > xdiff)
xdiff = 5120 - xdiff;
if(4096 - ydiff > ydiff)
ydiff = 4096 - ydiff;
}
if(xdiff > ydiff)
retval = xdiff;
else
retval = ydiff;
return retval;
}
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