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Merge pull request #3234 from MistakeNot4892/breathedeep
Collapsing human and carbon breathing down to /mob/living.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,106 +1,3 @@ | ||
| //Common breathing procs | ||
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| #define MOB_BREATH_DELAY 2 | ||
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| //Start of a breath chain, calls breathe() | ||
| /mob/living/carbon/handle_breathing() | ||
| if((life_tick % MOB_BREATH_DELAY) == 0 || failed_last_breath || is_asystole()) //First, resolve location and get a breath | ||
| breathe() | ||
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| /mob/living/carbon/proc/breathe(var/active_breathe = 1) | ||
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| if(!need_breathe()) return | ||
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| var/datum/gas_mixture/breath = null | ||
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| //First, check if we can breathe at all | ||
| if(handle_drowning() || (is_asystole() && !GET_CHEMICAL_EFFECT(src, CE_STABLE) && active_breathe)) //crit aka circulatory shock | ||
| losebreath = max(2, losebreath + 1) | ||
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| if(losebreath>0) //Suffocating so do not take a breath | ||
| losebreath-- | ||
| if (prob(10) && !is_asystole() && active_breathe) //Gasp per 10 ticks? Sounds about right. | ||
| INVOKE_ASYNC(src, .proc/emote, "gasp") | ||
| else | ||
| //Okay, we can breathe, now check if we can get air | ||
| var/volume_needed = get_breath_volume() | ||
| breath = get_breath_from_internal(volume_needed) //First, check for air from internals | ||
| if(!breath) | ||
| breath = get_breath_from_environment(volume_needed) //No breath from internals so let's try to get air from our location | ||
| if(!breath) | ||
| var/static/datum/gas_mixture/vacuum //avoid having to create a new gas mixture for each breath in space | ||
| if(!vacuum) vacuum = new | ||
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| breath = vacuum //still nothing? must be vacuum | ||
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| handle_breath(breath) | ||
| handle_post_breath(breath) | ||
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| /mob/living/carbon/proc/get_breath_from_internal(var/volume_needed=STD_BREATH_VOLUME) //hopefully this will allow overrides to specify a different default volume without breaking any cases where volume is passed in. | ||
| if(internal) | ||
| if (!contents.Find(internal)) | ||
| set_internals(null) | ||
| var/obj/item/mask = get_equipped_item(slot_wear_mask_str) | ||
| if (!mask || !(mask.item_flags & ITEM_FLAG_AIRTIGHT)) | ||
| set_internals(null) | ||
| if(internal) | ||
| if (internals) | ||
| internals.icon_state = "internal1" | ||
| return internal.remove_air_volume(volume_needed) | ||
| else | ||
| if (internals) | ||
| internals.icon_state = "internal0" | ||
| return null | ||
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| /mob/living/carbon/proc/get_breath_from_environment(var/volume_needed=STD_BREATH_VOLUME, var/atom/location = src.loc) | ||
| if(volume_needed <= 0) | ||
| return | ||
| var/datum/gas_mixture/breath = null | ||
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| var/datum/gas_mixture/environment | ||
| if(location) | ||
| environment = location.return_air() | ||
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| if(environment) | ||
| breath = environment.remove_volume(volume_needed) | ||
| handle_chemical_smoke(environment) //handle chemical smoke while we're at it | ||
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| if(breath && breath.total_moles) | ||
| //handle mask filtering | ||
| var/obj/item/clothing/mask/M = get_equipped_item(slot_wear_mask_str) | ||
| if(istype(M) && breath) | ||
| var/datum/gas_mixture/filtered = M.filter_air(breath) | ||
| location.assume_air(filtered) | ||
| return breath | ||
| return null | ||
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| //Handle possble chem smoke effect | ||
| /mob/living/carbon/proc/handle_chemical_smoke(var/datum/gas_mixture/environment) | ||
| if(species && environment.return_pressure() < species.breath_pressure/5) | ||
| return //pressure is too low to even breathe in. | ||
| var/obj/item/mask = get_equipped_item(slot_wear_mask_str) | ||
| if(mask && (mask.item_flags & ITEM_FLAG_BLOCK_GAS_SMOKE_EFFECT)) | ||
| return | ||
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| for(var/obj/effect/effect/smoke/chem/smoke in view(1, src)) | ||
| if(smoke.reagents.total_volume) | ||
| smoke.reagents.trans_to_mob(src, 5, CHEM_INGEST, copy = 1) | ||
| smoke.reagents.trans_to_mob(src, 5, CHEM_INJECT, copy = 1) | ||
| // I dunno, maybe the reagents enter the blood stream through the lungs? | ||
| break // If they breathe in the nasty stuff once, no need to continue checking | ||
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| /mob/living/carbon/proc/get_breath_volume() | ||
| return STD_BREATH_VOLUME | ||
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| /mob/living/carbon/proc/handle_breath(datum/gas_mixture/breath) | ||
| return | ||
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| /mob/living/carbon/proc/handle_post_breath(datum/gas_mixture/breath) | ||
| if(breath) | ||
| //by default, exhale | ||
| var/datum/gas_mixture/internals_air = internal?.return_air() | ||
| var/datum/gas_mixture/loc_air = loc?.return_air() | ||
| if(internals_air && (internals_air.return_pressure() < loc_air.return_pressure())) // based on the assumption it has a one-way valve for gas release | ||
| internals_air?.merge(breath) | ||
| else | ||
| loc_air?.merge(breath) | ||
| /mob/living/carbon/should_breathe() | ||
| return ((life_tick % MOB_BREATH_DELAY) == 0 || failed_last_breath || is_asystole()) |
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