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* Splattercasting, an offensive, sanguine equivalent to Lichdom. (#70637) A spell similar to lichdom, though with different conditions. Dramatically reduces your cooldowns Cooldown saved is converted into blood lost You are now a vampire, drinking blood refills your bloodwell, and you're naturally slowly running out. New school, Sanguine spells, which aren't affected by splattercasting and generally involve blood. Species change allowed by @ SuperNovaa41 * Splattercasting, an offensive, sanguine equivalent to Lichdom. Co-authored-by: tralezab <40974010+tralezab@users.noreply.github.com>
98 lines
4.0 KiB
Plaintext
98 lines
4.0 KiB
Plaintext
///how much we multiply cooldown (deciseconds) by to get the amount of blood to remove.
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///BLOOD_VOLUME_NORMAL is 560, expensive spells max out at around 60 seconds which is 600 deciseconds
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///removing 9/10ths of the cooldown from that puts us at 540 deciseconds, mult by 0.5 gives 270 blood taken
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///one second is worth 5 blood, roughly half of your normal amount of blood taken for a huge spell, seems fair
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#define COOLDOWN_TO_BLOOD_RATIO 0.5
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/**
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* # splattercasting component!
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*
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* Component that makes casted spells cost blood from the user and dramatically lowers their cooldown.
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*/
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/datum/component/splattercasting
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/datum/component/splattercasting/Initialize()
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if(!iscarbon(parent))
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return COMPONENT_INCOMPATIBLE
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/datum/component/splattercasting/RegisterWithParent()
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. = ..()
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RegisterSignal(parent, COMSIG_SPECIES_LOSS, .proc/on_species_change)
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RegisterSignal(parent, COMSIG_MOB_SPELL_PROJECTILE, .proc/on_spell_projectile)
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RegisterSignal(parent, COMSIG_MOB_BEFORE_SPELL_CAST, .proc/on_before_spell_cast)
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RegisterSignal(parent, COMSIG_MOB_AFTER_SPELL_CAST, .proc/on_after_spell_cast)
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/datum/component/splattercasting/UnregisterFromParent()
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. = ..()
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UnregisterSignal(parent, list(COMSIG_SPECIES_LOSS, COMSIG_MOB_SPELL_PROJECTILE, COMSIG_MOB_BEFORE_SPELL_CAST, COMSIG_MOB_AFTER_SPELL_CAST))
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///signal sent when a spell casts a projectile
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/datum/component/splattercasting/proc/on_species_change(mob/living/carbon/source, datum/species/lost_species)
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SIGNAL_HANDLER
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qdel(src)
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///signal sent when the parent casts a spell that has a projectile
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/datum/component/splattercasting/proc/on_spell_projectile(mob/living/carbon/source, datum/action/cooldown/spell/spell, atom/cast_on, obj/projectile/to_fire)
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SIGNAL_HANDLER
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if(spell.school == SCHOOL_SANGUINE)
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//already has blood themed projectiles
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return
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playsound(source, 'sound/effects/wounds/splatter.ogg', 60, TRUE, -1)
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to_fire.color = "#ff7070"
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to_fire.name = "blood-[to_fire.name]"
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to_fire.set_light(2, 2, LIGHT_COLOR_BLOOD_MAGIC, TRUE)
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///signal sent before parent casts a spell
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/datum/component/splattercasting/proc/on_before_spell_cast(mob/living/carbon/source, datum/action/cooldown/spell/spell, atom/cast_on)
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SIGNAL_HANDLER
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var/changed_spell = FALSE
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if(!(spell.spell_requirements & SPELL_REQUIRES_NO_ANTIMAGIC))
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spell.spell_requirements |= SPELL_REQUIRES_NO_ANTIMAGIC
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changed_spell = TRUE
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if(!(spell.antimagic_flags & MAGIC_RESISTANCE_HOLY))
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spell.antimagic_flags |= MAGIC_RESISTANCE_HOLY
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changed_spell = TRUE
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if(changed_spell)
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//we changed some kind of antimagic so we should check if the new version of the spell is still valid.
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//since can_cast_spell has already been checked before "before spell cast" only antimagic check should fail
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if(!spell.can_cast_spell(feedback = TRUE))
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return SPELL_CANCEL_CAST
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///signal sent after parent casts a spell
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/datum/component/splattercasting/proc/on_after_spell_cast(mob/living/carbon/source, datum/action/cooldown/spell/spell, atom/cast_on)
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SIGNAL_HANDLER
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if(spell.school == SCHOOL_SANGUINE)
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//allows for sanguine spells that work specially with blood to not interact with splattercasting.
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//might sound weird, but maybe in the future we'll have a spell that adds blood to the user when it hits a target
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//we wouldn't want that to cost blood.
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return
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//normal cooldown spell has
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var/cooldown_remaining = spell.next_use_time - world.time
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//how much we discount, we make the spell cost 1/10th of its actual cooldown
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var/new_cooldown = cooldown_remaining / 10
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//convert how much cooldown that spell saved into blood cost
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var/blood_cost = (cooldown_remaining - new_cooldown ) * COOLDOWN_TO_BLOOD_RATIO
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spell.StartCooldown(new_cooldown)
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source.blood_volume -= blood_cost
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var/cost_desc
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switch(blood_cost)
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if(1 to 50)
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cost_desc = "trickle"
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if(51 to 100)
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cost_desc = "stream"
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if(101 to 200)
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cost_desc = "river"
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if(201 to INFINITY)
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cost_desc = "torrent"
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to_chat(source, span_danger("You feel a [cost_desc] of your blood drained into the spell you just cast."))
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