VoxeLibre/mods/ITEMS/mcl_potions/lingering.lua

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local S = minetest.get_translator("mcl_potions")
local lingering_image = function(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)
lingering_effect_at[pos] = {color = color, timer = 30, def = def}
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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)
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minetest.add_particlespawner({
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amount = 10 * d^2,
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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 = "mcl_potions_sprite.png^[colorize:"..vals.color..":127",
})
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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._cmi_is_mob then
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vals.def.potion_fun(obj)
vals.timer = vals.timer / 2
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end
end
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if vals.timer <= 0 then lingering_effect_at[pos] = nil end
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"
minetest.register_craftitem(id, {
description = descr,
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_tt_help = def.tt,
inventory_image = lingering_image(color),
groups = {brewitem=1, not_in_creative_inventory=0},
on_use = function(item, placer, pointed_thing)
local velocity = 10
local dir = placer:get_look_dir();
local pos = placer:getpos();
local obj = minetest.add_entity({x=pos.x+(dir.x*2),y=pos.y+2+(dir.y*3),z=pos.z+(dir.z*2)}, id.."_flying")
obj:setvelocity({x=dir.x*velocity,y=dir.y*velocity,z=dir.z*velocity})
obj:setacceleration({x=dir.x*-3, y=-9.8, z=dir.z*-3})
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if not minetest.is_creative_enabled(placer:get_player_name()) then
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item:take_item()
end
return item
end,
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stack_max = 1,
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_on_dispense = function(stack, dispenserpos, droppos, dropnode, dropdir)
local s_pos = vector.add(dispenserpos, vector.multiply(dropdir, 0.51))
local obj = minetest.add_entity({x=s_pos.x+dropdir.x,y=s_pos.y+dropdir.y,z=s_pos.z+dropdir.z}, 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})
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 = {0,0,0,0,0,0},
on_step = function(self, dtime)
local pos = self.object:getpos()
local node = minetest.get_node(pos)
local n = node.name
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local d = 4
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if n ~= "air" and n ~= "mcl_portals:portal" and n ~= "mcl_portals:portal_end" or mcl_potions.is_obj_hit(self, pos) then
minetest.sound_play("mcl_potions_breaking_glass", {pos = pos, max_hear_distance = 16, gain = 1})
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add_lingering_effect(pos, color, def)
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minetest.add_particlespawner({
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amount = 40,
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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 = 1,
maxsize = 2,
collisiondetection = true,
vertical = false,
texture = "mcl_potions_sprite.png^[colorize:"..color..":127",
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})
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self.object:remove()
end
end,
})
end
-- -- register_lingering("weakness", S("Lingering Weakness Potion"), "#6600AA", {
-- -- potion_fun = function(player) mcl_potions.weakness_func(player, -4, mcl_potions.DURATION*mcl_potions.INV_FACTOR*0.25) end,
-- -- -- TODO: Fix tooltip
-- -- tt = time_string(mcl_potions.DURATION*mcl_potions.INV_FACTOR*0.25)
-- -- })
-- --
-- -- register_lingering("weakness_plus", S("Lingering Weakness Potion +"), "#7700BB", {
-- -- potion_fun = function(player) mcl_potions.weakness_func(player, -4, mcl_potions.DURATION_PLUS*mcl_potions.INV_FACTOR*0.25) end,
-- -- -- TODO: Fix tooltip
-- -- tt = time_string(mcl_potions.DURATION*mcl_potions.INV_FACTOR*0.25)
-- -- })
-- --
-- -- register_lingering("strength", S("Lingering Strength Potion"), "#D444D4", {
-- -- potion_fun = function(player) mcl_potions.strength_func(player, 3, mcl_potions.DURATION*0.25) end,
-- -- -- TODO: Fix tooltip
-- -- tt = time_string(mcl_potions.DURATION*0.25)
-- -- })
-- --
-- -- register_lingering("strength_2", S("Lingering Strength Potion II"), "#D444F4", {
-- -- potion_fun = function(player) mcl_potions.strength_func(player, 6, smcl_potions.DURATION_2*0.25) end,
-- -- -- TODO: Fix tooltip
-- -- tt = time_string(mcl_potions.DURATION_2*0.25)
-- -- })
-- --
-- -- register_lingering("strength_plus", S("Lingering Strength Potion +"), "#D444E4", {
-- -- potion_fun = function(player) mcl_potions.strength_func(player, 3, mcl_potions.DURATION_PLUS*0.25) end,
-- -- -- TODO: Fix tooltip
-- -- tt = time_string(mcl_potions.DURATION_PLUS*0.25)
-- -- })