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64 lines
2.5 KiB
Plaintext
64 lines
2.5 KiB
Plaintext
/**
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* # Slip Component
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*
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* This is a component that can be applied to any movable atom (mob or obj).
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*
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* While the atom has this component, any human mob that walks over it will have a chance to slip.
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* Duration, tiles moved, and so on, depend on what variables are passed in when the component is added.
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*
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*/
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/datum/component/slippery
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/// Text that gets displayed in the slip proc, i.e. "user slips on [description]"
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var/description
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/// The amount of knockdown to apply after slip.
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var/knockdown
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/// The chance that walking over the parent will slip you.
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var/slip_chance
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/// The amount of tiles someone will be moved after slip.
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var/slip_tiles
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/// TRUE If this slip can be avoided by walking.
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var/walking_is_safe
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/// FALSE if you want no slip shoes to make you immune to the slip
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var/slip_always
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/// The verb that players will see when someone slips on the parent. In the form of "You [slip_verb]ped on".
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var/slip_verb
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/// TRUE the player will only slip if the mob this datum is attached to is horizontal
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var/horizontal_required
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/datum/component/slippery/Initialize(_description, _knockdown = 0, _slip_chance = 100, _slip_tiles = 0, _walking_is_safe = TRUE, _slip_always = FALSE, _slip_verb = "slip", _horizontal_required = FALSE)
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if(!isatom(parent))
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return COMPONENT_INCOMPATIBLE
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description = _description
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knockdown = max(0, _knockdown)
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slip_chance = max(0, _slip_chance)
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slip_tiles = max(0, _slip_tiles)
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walking_is_safe = _walking_is_safe
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slip_always = _slip_always
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slip_verb = _slip_verb
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horizontal_required = _horizontal_required
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/datum/component/slippery/RegisterWithParent()
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RegisterSignal(parent, list(COMSIG_MOVABLE_CROSSED, COMSIG_ATOM_ENTERED), PROC_REF(Slip))
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/datum/component/slippery/UnregisterFromParent()
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UnregisterSignal(parent, list(COMSIG_MOVABLE_CROSSED, COMSIG_ATOM_ENTERED))
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/**
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Called whenever the parent recieves either the `MOVABLE_CROSSED` signal or the `ATOM_ENTERED` signal.
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Calls the `victim`'s `slip()` proc with the component's variables as arguments.
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Additionally calls the parent's `after_slip()` proc on the `victim`.
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*/
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/datum/component/slippery/proc/Slip(datum/source, mob/living/carbon/human/victim)
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if(istype(victim) && !victim.flying)
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var/atom/movable/owner = parent
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if(!isturf(owner.loc))
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return
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if(isliving(owner))
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var/mob/living/mob_owner = owner
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if(horizontal_required && !IS_HORIZONTAL(mob_owner))
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return
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if(prob(slip_chance) && victim.slip(description, knockdown, slip_tiles, walking_is_safe, slip_always, slip_verb))
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owner.after_slip(victim)
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