_std/macros/dir.dm 
| /var/cardinal | Never Soggy Eat Waffles |
|---|---|
| /var/ordinal | Diagonal directions |
| /var/alldirs | Every direction known to 2D tile-grid-locked spessmen |
| /var/dirnames | Assoc. list of dirs like "north"=NORTH |
| /var/dirvalues | Assoc. list of dirs like "[NORTH]" = "NORTH", useful for screen_loc |
| /proc/dir_to_dirname | Returns the lowercase english word for a direction (num) |
| /proc/dirname_to_dir | Returns the direction (num) of a given lowercase english direction |
| is_cardinal | Returns true if a direction is cardinal |
| angle2dir | Given an angle, matches it to the closest direction and returns it. |
| /proc/vector_magnitude | Returns the vector magnitude of an x value and a y value |
| /proc/vector_to_dir | Transforms a supplied vector x & y to a direction |
| /proc/angle_to_dir | Transforms a given angle to a cardinal/ordinal direction |
| /proc/dir_to_angle | Transforms a cardinal/ordinal direction to an angle |
| /proc/angle_inbetween | Checks if an angle is between two other angles |
| /proc/angle_to_vector | Transforms a given angle to vec2 in a list |
| turn_needed | Calculates the angle you need to pass to the turn proc to get dir_to from dir_from turn(dir, turn_needed(dir, dir_to)) = dir_to |
| get_step_truly_rand | BYOND's default get_step_rand() is not actually uniformly random (heavily biased towards dir). This is a replacement that is actually uniformly random. |
| get_step_rand_cardinal | Returns a tile in a random cardinal direction |
Define Details
angle2dir
Given an angle, matches it to the closest direction and returns it.
get_step_rand_cardinal
Returns a tile in a random cardinal direction
get_step_truly_rand
BYOND's default get_step_rand() is not actually uniformly random (heavily biased towards dir). This is a replacement that is actually uniformly random.
is_cardinal
Returns true if a direction is cardinal
turn_needed
Calculates the angle you need to pass to the turn proc to get dir_to from dir_from turn(dir, turn_needed(dir, dir_to)) = dir_to