The value is proportional to the object's velocity in Y direction. The velocities 0 to max_dir are mapped linearly to the interval given by begin and end.
Syntax
array Anim_YDir(int begin, int end, int max_dir);
Parameters
begin:
Start of the interval.
end:
End of the interval. If end is greater than begin then the value increases with increases XDir, otherwise it decreases.
max_dir:
Highest value of the YDir to be mapped. All larger velocities lead to the same animation value (end).