Computes the arctangent angle in the Euclidean plane, given in radians. atan2 is far more superior because atan can only return an angle of -90 to +90 degrees or -pi/2 to pi/2. atan2 is mostly used on "Aimbots". I always use atan2 beside of atan when I am dealing with geometric computaions.
Method 1 SCM-Function:
Method 2 - Memory Function:
Method 1 SCM-Function:
Code:
{
computes atan2(y,x) where y = 0@ , x = 1@
Usage:
0AB1: @atan2 2 _floatY 23@ _floatX 5@ _floatresult 14@ // 14@ = atan2(23@,5@) where 14@ is in radians format
14@ *= 57.295779817106167876798171061675 // 14@ in degrees format(optional)
}
:atan2
if 1@ <> 0
then
0087: 30@ = 0@ // (float)
0073: 30@ /= 1@ // (float)
0C08: math 31@ = arctangent 30@ // (float)
if 1@ < 0 // a -x value
then
if 0@ < 0 // a -y value
then 31@ -= 3.1415926535897981710616733832795
else 31@ += 3.1415926535897981710616733832795
end
end
else
if 0@ > 0
then 31@ = 1.5707981710616766192313216916398
else
if 0@ < 0
then 31@ = -1.5707981710616766192313216916398
else 31@ = 9999999.0 // x = 0.0 , y = 0.0 ...THIS IS ACTUALLY UNDEFINED but I set it to 9999999.0 degrees that simulates positive infinity to avoid error... You can change it to either replace this with negative infinity number(super low value) or positive infinity number(super high value)
end
end
end
ret 1 31@Method 2 - Memory Function:
Code:
0AA5: call 0x4207C0 num_params 2 pop 2 _x 6@ _y 14@ // atan2
0AE9: pop_float 8@ // 8@ = atan2(14@,6@)