VoxeLibre/mods/ITEMS/mcl_potions/lingering.lua

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local S = minetest.get_translator(minetest.get_current_modname())
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local mod_target = minetest.get_modpath("mcl_target")
local function lingering_image(colorstring, opacity)
if not opacity then
opacity = 127
end
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return "mcl_potions_splash_overlay.png^[colorize:"..colorstring..":"..tostring(opacity).."^mcl_potions_lingering_bottle.png"
end
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local lingering_effect_at = {}
local function add_lingering_effect(pos, color, def, is_water, potency, plus)
lingering_effect_at[pos] = {color = color, timer = 30, def = def, is_water = is_water, potency = potency, plus = plus}
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end
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local function linger_particles(pos, d, texture, color)
minetest.add_particlespawner({
amount = 10 * d^2,
time = 1,
minpos = {x=pos.x-d, y=pos.y+0.5, z=pos.z-d},
maxpos = {x=pos.x+d, y=pos.y+1, z=pos.z+d},
minvel = {x=-0.5, y=0, z=-0.5},
maxvel = {x=0.5, y=0.5, z=0.5},
minacc = {x=-0.2, y=0, z=-0.2},
maxacc = {x=0.2, y=.05, z=0.2},
minexptime = 1,
maxexptime = 2,
minsize = 2,
maxsize = 4,
collisiondetection = true,
vertical = false,
texture = texture.."^[colorize:"..color..":127",
})
end
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local lingering_timer = 0
minetest.register_globalstep(function(dtime)
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lingering_timer = lingering_timer + dtime
if lingering_timer >= 1 then
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for pos, vals in pairs(lingering_effect_at) do
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vals.timer = vals.timer - lingering_timer
local d = 4 * (vals.timer / 30.0)
local texture
if vals.is_water then
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texture = "mcl_particles_droplet_bottle.png"
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elseif vals.def.instant then
texture = "mcl_particles_instant_effect.png"
else
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texture = "mcl_particles_effect.png"
end
linger_particles(pos, d, texture, vals.color)
-- -- Extinguish fire if water bottle
-- if vals.is_water then
-- if mcl_potions._extinguish_nearby_fire(pos, d) then
-- vals.timer = vals.timer - 3.25
-- end
-- end
if vals.def.while_lingering and vals.def.while_lingering(pos, d, vals.potency+1) then
vals.timer = vals.timer - 3.25
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end
-- Affect players and mobs
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for _, obj in pairs(minetest.get_objects_inside_radius(pos, d)) do
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local entity = obj:get_luaentity()
if obj:is_player() or entity and entity.is_mob then
local applied = false
if vals.def._effect_list then
local ef_level
local dur
for name, details in pairs(vals.def._effect_list) do
if details.uses_level then
ef_level = details.level + details.level_scaling * (vals.potency)
else
ef_level = details.level
end
if details.dur_variable then
dur = details.dur * math.pow(mcl_potions.PLUS_FACTOR, vals.plus)
if vals.potency>0 and details.uses_level then
dur = dur / math.pow(mcl_potions.POTENT_FACTOR, vals.potency)
end
dur = dur * mcl_potions.LINGERING_FACTOR
else
dur = details.dur
end
if details.effect_stacks then
ef_level = ef_level + mcl_potions.get_effect_level(obj, name)
end
if mcl_potions.give_effect_by_level(name, obj, ef_level, dur) then
applied = true
end
end
end
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if vals.def.custom_effect
and vals.def.custom_effect(obj, (vals.potency+1) * mcl_potions.LINGERING_FACTOR, plus) then
applied = true
end
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if applied then vals.timer = vals.timer - 3.25 end
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end
end
if vals.timer <= 0 then
lingering_effect_at[pos] = nil
end
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end
lingering_timer = 0
end
end)
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function mcl_potions.register_lingering(name, descr, color, def)
local id = "mcl_potions:"..name.."_lingering"
local longdesc = def._longdesc
if not def.no_effect then
longdesc = S("A throwable potion that will shatter on impact, where it creates a magic cloud that lingers around for a while. Any player or mob inside the cloud will receive the potion's effect or set of effects, possibly repeatedly.")
if def.longdesc then
longdesc = longdesc .. "\n" .. def._longdesc
end
end
local groups = {brewitem=1, bottle=1, ling_potion=1, _mcl_potion=1}
if def.nocreative then groups.not_in_creative_inventory = 1 end
minetest.register_craftitem(id, {
description = descr,
_tt_help = def._tt,
_dynamic_tt = def._dynamic_tt,
_doc_items_longdesc = longdesc,
_doc_items_usagehelp = S("Use the “Punch” key to throw it."),
stack_max = def.stack_max,
_effect_list = def._effect_list,
uses_level = def.uses_level,
has_potent = def.has_potent,
has_plus = def.has_plus,
_default_potent_level = def._default_potent_level,
_default_extend_level = def._default_extend_level,
inventory_image = lingering_image(color),
groups = groups,
on_use = function(item, placer, pointed_thing)
local velocity = 10
local dir = placer:get_look_dir();
local pos = placer:getpos();
minetest.sound_play("mcl_throwing_throw", {pos = pos, gain = 0.4, max_hear_distance = 16}, true)
local obj = minetest.add_entity({x=pos.x+dir.x,y=pos.y+2+dir.y,z=pos.z+dir.z}, id.."_flying")
obj:set_velocity({x=dir.x*velocity,y=dir.y*velocity,z=dir.z*velocity})
obj:set_acceleration({x=dir.x*-3, y=-9.8, z=dir.z*-3})
local ent = obj:get_luaentity()
ent._thrower = placer:get_player_name()
ent._potency = item:get_meta():get_int("mcl_potions:potion_potent")
ent._plus = item:get_meta():get_int("mcl_potions:potion_plus")
ent._effect_list = def._effect_list
if not minetest.is_creative_enabled(placer:get_player_name()) then
item:take_item()
end
return item
end,
stack_max = 1,
_on_dispense = function(stack, dispenserpos, droppos, dropnode, dropdir)
local s_pos = vector.add(dispenserpos, vector.multiply(dropdir, 0.51))
local pos = {x=s_pos.x+dropdir.x,y=s_pos.y+dropdir.y,z=s_pos.z+dropdir.z}
minetest.sound_play("mcl_throwing_throw", {pos = pos, gain = 0.4, max_hear_distance = 16}, true)
local obj = minetest.add_entity(pos, id.."_flying")
local velocity = 22
obj:set_velocity({x=dropdir.x*velocity,y=dropdir.y*velocity,z=dropdir.z*velocity})
obj:set_acceleration({x=dropdir.x*-3, y=-9.8, z=dropdir.z*-3})
local ent = obj:get_luaentity()
ent._potency = stack:get_meta():get_int("mcl_potions:potion_potent")
ent._plus = stack:get_meta():get_int("mcl_potions:potion_plus")
ent._effect_list = def._effect_list
end
})
local w = 0.7
minetest.register_entity(id.."_flying",{
textures = {lingering_image(color)},
hp_max = 1,
visual_size = {x=w/2,y=w/2},
collisionbox = {-0.1,-0.1,-0.1,0.1,0.1,0.1},
pointable = false,
on_step = function(self, dtime)
local pos = self.object:get_pos()
local node = minetest.get_node(pos)
local n = node.name
local g = minetest.get_item_group(n, "liquid")
local d = 4
if mod_target and n == "mcl_target:target_off" then
mcl_target.hit(vector.round(pos), 0.4) --4 redstone ticks
end
if n ~= "air" and n ~= "mcl_portals:portal" and n ~= "mcl_portals:portal_end" and g == 0 or mcl_potions.is_obj_hit(self, pos) then
minetest.sound_play("mcl_potions_breaking_glass", {pos = pos, max_hear_distance = 16, gain = 1})
local potency = self._potency or 0
local plus = self._plus or 0
add_lingering_effect(pos, color, def, name == "water", potency, plus)
local texture
if name == "water" then
texture = "mcl_particles_droplet_bottle.png"
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else
if def.instant then
texture = "mcl_particles_instant_effect.png"
else
texture = "mcl_particles_effect.png"
end
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end
linger_particles(pos, d, texture, color)
if def.on_splash then def.on_splash(pos, potency+1) end
self.object:remove()
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end
end,
})
end