Editing SetLineActivation

{{ACSFunction|
description=Modifies a line's activation type, if it has a special set: who can activate it, from which side, whether it is repeatable.
|usage=''void'' '''SetLineActivation'''(''int lineid'', ''int activation''[, ''int repeat''])
|parameters=
*''lineid'': ID (tag) of line to modify
*''activation'': activation type. Can be:
**'''SPAC_None''' or 0: disable the activation
**a combination (sum or OR-operation) of the following:
***'''SPAC_Cross''' (1): on player crossing
***'''SPAC_Use''' (2): on player using from first side
***'''SPAC_MCross''' (4): on monster crossing
***'''SPAC_Impact''' (8): on player or monster shooting bullets (hitscans) on line
***'''SPAC_Push''' (16): on player bumping into line
***'''SPAC_PCross''' (32): on projectile crossing line
***'''SPAC_UseThrough''' (64): when player uses it from front side + allow 'passthru' effect
***'''SPAC_AnyCross''' (128): when any of player, monster, projectile or polyobject crosses it
***'''SPAC_MUse''' (256): when monster uses it from front side
***'''SPAC_MPush''' (512): when monster bumps into line
***'''SPAC_UseBack''' (1024): allow using from back side
*''repeat'': if greater than 0, then it allows the activation to be repeated. Otherwise, if 0, it removed the "repeatable" attribute.}}