Set hitbox value

Writes a value into the hitbox grid for the specified attack, hitbox, and index. Default values are always.

Syntax
set_hitbox_value(attack, hitbox, index, value);

Returns
N/A

Examples
// sets the damage dealt by the first hitbox of AT_FAIR to 10: set_hitbox_value( AT_FAIR, 1, HG_DAMAGE, 10 );